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  • Parse JSON in C#

    - by Ender
    I'm trying to parse some JSON data from the Google AJAX Search API. I have this URL and I'd like to break it down so that the results are displayed. I've currently written this code, but I'm pretty lost in regards of what to do next, although there are a number of examples out there with simplified JSON strings. Being new to C# and .NET in general I've struggled to get a genuine text output for my ASP.NET page so I've been recommended to give JSON.NET a try. Could anyone point me in the right direction to just simply writing some code that'll take in JSON from the Google AJAX Search API and print it out to the screen? EDIT: I think I've made some progress in regards to getting some code working using DataContractJsonSerializer. Here is the code I have so far. Any advice on whether this is close to working and/or how I would output my results in a clean format? EDIT 2: I've followed the advice from Dreas Grech and the StackOverflowException has gone. However, now I am getting no output. Any ideas on where to go next? EDIT 3: ALL FIXED! All results are working fine. Thank you again Dreas Grech! using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.ServiceModel.Web; using System.Runtime.Serialization; using System.Runtime.Serialization.Json; using System.IO; using System.Text; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { GoogleSearchResults g1 = new GoogleSearchResults(); const string json = @"{""responseData"": {""results"":[{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.cheese.com/"",""url"":""http://www.cheese.com/"",""visibleUrl"":""www.cheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:bkg1gwNt8u4J:www.cheese.com"",""title"":""\u003cb\u003eCHEESE\u003c/b\u003e.COM - All about \u003cb\u003echeese\u003c/b\u003e!."",""titleNoFormatting"":""CHEESE.COM - All about cheese!."",""content"":""\u003cb\u003eCheese\u003c/b\u003e - everything you want to know about it. Search \u003cb\u003echeese\u003c/b\u003e by name, by types of milk, by textures and by countries.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://en.wikipedia.org/wiki/Cheese"",""url"":""http://en.wikipedia.org/wiki/Cheese"",""visibleUrl"":""en.wikipedia.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:n9icdgMlCXIJ:en.wikipedia.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e - Wikipedia, the free encyclopedia"",""titleNoFormatting"":""Cheese - Wikipedia, the free encyclopedia"",""content"":""\u003cb\u003eCheese\u003c/b\u003e is a food consisting of proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. It is produced by coagulation of the milk \u003cb\u003e...\u003c/b\u003e""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.ilovecheese.com/"",""url"":""http://www.ilovecheese.com/"",""visibleUrl"":""www.ilovecheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:GBhRR8ytMhQJ:www.ilovecheese.com"",""title"":""I Love \u003cb\u003eCheese\u003c/b\u003e!, Homepage"",""titleNoFormatting"":""I Love Cheese!, Homepage"",""content"":""The American Dairy Association\u0026#39;s official site includes recipes and information on nutrition and storage of \u003cb\u003echeese\u003c/b\u003e.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.gnome.org/projects/cheese/"",""url"":""http://www.g

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  • MVVM: Binding radio buttons to a view model?

    - by David Veeneman
    I have been trying to bind a group of radio buttons to a view model using the IsChecked button. After reviewing other posts, it appears that the IsChecked property simply doesn't work. I have put together a short demo that reproduces the problem, which I have included below. Here is my question: Is there a straightforward and reliable way to bind radio buttons using MVVM? Thanks. Additional information: The IsChecked property doesn't work for two reasons: When a button is selected, the IsChecked properties of other buttons in the group don't get set to false. When a button is selected, its own IsChecked property does not get set after the first time the button is selected. I am guessing that the binding is getting trashed by WPF on the first click. Demo project: Here is the code and markup for a simple demo that reproduces the problem. Create a WPF project and replace the markup in Window1.xaml with the following: <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300" Loaded="Window_Loaded"> <StackPanel> <RadioButton Content="Button A" IsChecked="{Binding Path=ButtonAIsChecked, Mode=TwoWay}" /> <RadioButton Content="Button B" IsChecked="{Binding Path=ButtonBIsChecked, Mode=TwoWay}" /> </StackPanel> </Window> Replace the code in Window1.xaml.cs with the following code (a hack), which sets the view model: using System.Windows; namespace WpfApplication1 { /// <summary> /// Interaction logic for Window1.xaml /// </summary> public partial class Window1 : Window { public Window1() { InitializeComponent(); } private void Window_Loaded(object sender, RoutedEventArgs e) { this.DataContext = new Window1ViewModel(); } } } Now add the following code to the project as Window1ViewModel.cs: using System.Windows; namespace WpfApplication1 { public class Window1ViewModel { private bool p_ButtonAIsChecked; /// <summary> /// Summary /// </summary> public bool ButtonAIsChecked { get { return p_ButtonAIsChecked; } set { p_ButtonAIsChecked = value; MessageBox.Show(string.Format("Button A is checked: {0}", value)); } } private bool p_ButtonBIsChecked; /// <summary> /// Summary /// </summary> public bool ButtonBIsChecked { get { return p_ButtonBIsChecked; } set { p_ButtonBIsChecked = value; MessageBox.Show(string.Format("Button B is checked: {0}", value)); } } } } To reproduce the problem, run the app and click Button A. A message box will appear, saying that Button A's IsChecked property has been set to true. Now select Button B. Another message box will appear, saying that Button B's IsChecked property has been set to true, but there is no message box indicating that Button A's IsChecked property has been set to false--the property hasn't been changed. Now click Button A again. The button will be selected in the window, but no message box will appear--the IsChecked property has not been changed. Finally, click on Button B again--same result. The IsChecked property is not updated at all for either button after the button is first clicked.

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  • Ruby Debug IDE error : ruby-debug-ide-0.4.9/lib/ruby-debug-ide.rb:109:in `debug_load'

    - by Paul
    I hope someone can assist me. I have RubyMine 2.0.2 installed on Windows 7 32 bit computer. Since a week ago (I presume it must have been after I have update some gems) I cant seem to debug form the IDE. I am trying to debug a rake task which I could before. Running the rake task normally works perfect, just debug doesnt. Its not just limited to the rake, I cant debug any ruby files. I've tried installing older versions of debug-ide and debug-base but to no success. I've tried it with ruby 1.8.7 and 1.8.6 on different computers but nothing. Trying to search the web gave some information, which I've tried, but also no success. Im desperate to get this working. Below are the full error and my current settings: Error: C:\InstantRails\ruby\bin\ruby.exe -e STDOUT.sync=true;STDERR.sync=true;load($0=ARGV.shift) C:\InstantRails\ruby\bin/rdebug-ide --port 57167 -- C:/InstantRails/rails_apps/paperserve/lib/tasks/poll_snmp.rake Fast Debugger (ruby-debug-ide 0.4.9) listens on :57167 C:/InstantRails/rails_apps/paperserve/lib/tasks/poll_snmp.rake:5 C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.9/lib/ruby-debug ide.rb:109:in `debug_load' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.9/lib/ruby-debug ide.rb:109:in `debug_program' C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.9/bin/rdebug-ide:87 C:\InstantRails\ruby\bin/rdebug-ide:19:in `load' C:\InstantRails\ruby\bin/rdebug-ide:19 -e:1:in `load' -e:1 Uncaught exception: undefined method `namespace' for main:Object Process finished with exit code 1 Code snippet (It fails at the start of namespace. If I remove this, it fails on the next line, etc, etc) #This script should run every 15 minutes require 'snmp' require 'yaml' namespace :cdeweb do RubyGems Environment: RUBYGEMS VERSION: 1.3.7 RUBY VERSION: 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32] INSTALLATION DIRECTORY: C:/InstantRails/ruby/lib/ruby/gems/1.8 RUBY EXECUTABLE: C:/InstantRails/ruby/bin/ruby.exe EXECUTABLE DIRECTORY: C:/InstantRails/ruby/bin RUBYGEMS PLATFORMS: ruby x86-mswin32-60 GEM PATHS: C:/InstantRails/ruby/lib/ruby/gems/1.8 C:/Users/Paul.LPFSYSTEMS/.gem/ruby/1.8 GEM CONFIGURATION: :update_sources = true :verbose = true :benchmark = false :backtrace = false :bulk_threshold = 1000 REMOTE SOURCES: http://rubygems.org/ * LOCAL GEMS * actionmailer (2.3.5, 2.0.2) actionpack (2.3.5, 2.0.2) activerecord (2.3.5, 2.0.2) activeresource (2.3.5, 2.0.2) activesupport (2.3.5, 2.0.2) capistrano (2.5.18, 2.1.0) cgi_multipart_eof_fix (2.5.0) cmdparse (2.0.2) columnize (0.3.1) fxri (0.3.7, 0.3.6) fxruby (1.6.12 mswin32) gem_plugin (0.2.3) highline(1.5.2, 1.4.0) hpricot (0.8.2 x86-mswin32, 0.6 mswin32) inaction_mailer (0.6) json (1.4.2 x86-mswin32) json_pure (1.4.2) linecache (0.43 mswin32) log4r (1.1.7, 1.0.5) mongrel (1.1.5 x86-mswin32-60, 1.1.2 mswin32) mysql(2.8.1 x86-mswin32, 2.7.3 mswin32) needle (1.3.0) net-scp (1.0.2) net-sftp (2.0.4, 1.1.0) net-ssh (2.0.22, 1.1.2) net-ssh-gateway (1.0.1) rack (1.0.1) rails (2.3.5, 2.0.2) rake (0.8.7, 0.8.1, 0.8.0, 0.7.3) ruby-debug-base (0.10.3 mswin32) ruby-debug-ide (0.4.9) ruby-net-ldap (0.0.4) rubygems-update (1.3.7, 1.3.6, 1.0.1) snmp (1.0.2) sources (0.0.1) sqlite3-ruby (1.2.5 x86-mswin32, 1.2.1 mswin32) win32-api (1.4.6 x86-mswin32-60, 1.0.4 mswin32) win32-clipboard (0.5.2, 0.4.3) win32-dir (0.3.6, 0.3.2) win32-eventlog (0.5.2, 0.4.6) win32-file (0.6.3, 0.5.4) win32-file-stat (1.3.4, 1.2.7) win32-process (0.6.2, 0.5.3) win32-sapi (0.1.5, 0.1.4) win32-sound (0.4.2, 0.4.1) windows-api (0.4.0, 0.2.0)

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  • Android: ActivityThread.performLaunchActivity error

    - by fordays
    Hi, I'm getting an ActivityThread.performLaunchActivity(ActivityThread$ActivityRecord,Intent) error each time I boot up my program in the debugger. The program won't even start up! Any help would be greatly appreciated! I'm very new to this environment. Let me know if you need anymore information/code to help me out. Here is my logcat: 06-09 11:16:26.848: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test2' (No such file or directory) 06-09 11:16:26.848: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test2' (No such file or directory) 06-09 11:16:26.848: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test' (No such file or directory) 06-09 11:16:26.848: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test' (No such file or directory) 06-09 11:16:37.887: ERROR/MemoryHeapBase(53): error opening /dev/pmem: No such file or directory 06-09 11:16:37.887: ERROR/SurfaceFlinger(53): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake 06-09 11:16:37.927: ERROR/libEGL(53): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 06-09 11:16:38.407: ERROR/libEGL(64): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 06-09 11:16:41.358: ERROR/BatteryService(53): Could not open '/sys/class/power_supply/usb/online' 06-09 11:16:41.367: ERROR/BatteryService(53): Could not open '/sys/class/power_supply/battery/batt_vol' 06-09 11:16:41.367: ERROR/BatteryService(53): Could not open '/sys/class/power_supply/battery/batt_temp' 06-09 11:16:41.667: ERROR/EventHub(53): could not get driver version for /dev/input/mouse0, Not a typewriter 06-09 11:16:41.667: ERROR/EventHub(53): could not get driver version for /dev/input/mice, Not a typewriter 06-09 11:16:41.797: ERROR/System(53): Failure starting core service 06-09 11:16:41.797: ERROR/System(53): java.lang.SecurityException 06-09 11:16:41.797: ERROR/System(53): at android.os.BinderProxy.transact(Native Method) 06-09 11:16:41.797: ERROR/System(53): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146) 06-09 11:16:41.797: ERROR/System(53): at android.os.ServiceManager.addService(ServiceManager.java:72) 06-09 11:16:41.797: ERROR/System(53): at com.android.server.ServerThread.run(SystemServer.java:162) 06-09 11:16:41.797: ERROR/AndroidRuntime(53): Crash logging skipped, no checkin service 06-09 11:16:42.777: ERROR/LockPatternKeyguardView(53): Failed to bind to GLS while checking for account 06-09 11:16:46.557: ERROR/ActivityThread(111): Failed to find provider info for com.google.settings 06-09 11:16:46.577: ERROR/ActivityThread(111): Failed to find provider info for com.google.settings 06-09 11:16:49.087: ERROR/ApplicationContext(53): Couldn't create directory for SharedPreferences file shared_prefs/wallpaper-hints.xml 06-09 11:16:51.146: ERROR/ActivityThread(108): Failed to find provider info for android.server.checkin 06-09 11:16:54.266: ERROR/ActivityThread(108): Failed to find provider info for android.server.checkin 06-09 11:16:54.416: ERROR/ActivityThread(108): Failed to find provider info for android.server.checkin 06-09 11:16:56.336: ERROR/MediaPlayerService(31): Couldn't open fd for content://settings/system/notification_sound 06-09 11:16:56.356: ERROR/MediaPlayer(53): Unable to to create media player 06-09 11:16:56.637: ERROR/AndroidRuntime(201): Uncaught handler: thread main exiting due to uncaught exception 06-09 11:16:56.757: ERROR/AndroidRuntime(201): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.svgeeks.kidneytest/com.svgeeks.kidneytest.KidneyTest}: java.lang.ClassCastException: android.widget.EditText 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.os.Handler.dispatchMessage(Handler.java:99) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.os.Looper.loop(Looper.java:123) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread.main(ActivityThread.java:4203) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invokeNative(Native Method) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invoke(Method.java:521) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at dalvik.system.NativeStart.main(Native Method) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): Caused by: java.lang.ClassCastException: android.widget.EditText 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at com.svgeeks.kidneytest.KidneyTest.onCreate(KidneyTest.java:57) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 06-09 11:16:56.757: ERROR/AndroidRuntime(201): ... 11 more 06-09 11:16:56.876: ERROR/dalvikvm(201): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

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  • WPF Layout algorithm woes - control will resize, but not below some arbitrary value.

    - by Quantumplation
    I'm working on an application for a client, and one of the requirements is the ability to make appointments, and display the current week's appointments in a visual format, much like in Google Calender's or Microsoft Office. I found a great (3 part) article on codeproject, in which he builds a "RangePanel", and composes one for each "period" (for example, the work day.) You can find part 1 here: http://www.codeproject.com/KB/WPF/OutlookWpfCalendarPart1.aspx The code presents, but seems to choose an arbitrary height value overall (440.04), and won't resize below that without clipping. What I mean to say, is that the window/container will resize, but it just cuts off the bottom of the control, instead of recalculating the height of the range panels, and the controls in the range panels representing the appointment. It will resize and recalculate for greater values, but not less. Code-wise, what's happening is that when you resize below that value, first the "MeasureOverride" is called with the correct "new height". However, by the time the "ArrangeOverride" method is called, it's passing the same 440.04 value as the height to arrange to. I need to find a solution/workaround, but any information that you can provide that might direct me for things to look into would also be greatly appreciated ( I understand how frustrating it is to debug code when you don't have the codebase in front of you. :) ) The code for the various Arrange and Measure functions are provided below. The "CalendarView" control has a "CalendarViewContentPresenter", which handles several periods. Then, the periods have a "CalendarPeriodContentPresenter", which handles each "block" of appointments. Finally, the "RangePanel" has it's own implementation. (To be honest, i'm still a bit hazy on how the control works, so if my explanations are a bit hazy, the article I linked probably has a more cogent explanation. :) ) CalendarViewContentPresenter: protected override Size ArrangeOverride(Size finalSize) { int columnCount = this.CalendarView.Periods.Count; Size columnSize = new Size(finalSize.Width / columnCount, finalSize.Height); double elementX = 0; foreach (UIElement element in this.visualChildren) { element.Arrange(new Rect(new Point(elementX, 0), columnSize)); elementX = elementX + columnSize.Width; } return finalSize; } protected override Size MeasureOverride(Size constraint) { this.GenerateVisualChildren(); this.GenerateListViewItemVisuals(); // If it's coming back infinity, just return some value. if (constraint.Width == Double.PositiveInfinity) constraint.Width = 10; if (constraint.Height == Double.PositiveInfinity) constraint.Height = 10; return constraint; } CalendarViewPeriodPersenter: protected override Size ArrangeOverride(Size finalSize) { foreach (UIElement element in this.visualChildren) { element.Arrange(new Rect(new Point(0, 0), finalSize)); } return finalSize; } protected override Size MeasureOverride(Size constraint) { this.GenerateVisualChildren(); return constraint; } RangePanel: protected override Size ArrangeOverride(Size finalSize) { double containerRange = (this.Maximum - this.Minimum); foreach (UIElement element in this.Children) { double begin = (double)element.GetValue(RangePanel.BeginProperty); double end = (double)element.GetValue(RangePanel.EndProperty); double elementRange = end - begin; Size size = new Size(); size.Width = (Orientation == Orientation.Vertical) ? finalSize.Width : elementRange / containerRange * finalSize.Width; size.Height = (Orientation == Orientation.Vertical) ? elementRange / containerRange * finalSize.Height : finalSize.Height; Point location = new Point(); location.X = (Orientation == Orientation.Vertical) ? 0 : (begin - this.Minimum) / containerRange * finalSize.Width; location.Y = (Orientation == Orientation.Vertical) ? (begin - this.Minimum) / containerRange * finalSize.Height : 0; element.Arrange(new Rect(location, size)); } return finalSize; } protected override Size MeasureOverride(Size availableSize) { foreach (UIElement element in this.Children) { element.Measure(availableSize); } // Constrain infinities if (availableSize.Width == double.PositiveInfinity) availableSize.Width = 10; if (availableSize.Height == double.PositiveInfinity) availableSize.Height = 10; return availableSize; }

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  • Complex SQL query help on aggregating values for nested subquery

    - by François Beausoleil
    Hi! I have people, companies, employees, events and event kinds. I'm making a report/followup sheet where people, companies and employees are the rows, and the columns are event kinds. Event kinds are simple values describing: "Promised Donation", "Received Donation", "Phoned", "Followed up" and such. Event kinds are ordered: CREATE TABLE event_kinds ( id, name, position); Events hold the actual reference to the event: CREATE TABLE events ( id, person_id, company_id, referrer_id, event_kind_id, created_at); referrer_id is another reference to people. It is the person which sent the information/tip along, and is an optional field, although I sometimes want to filter on an event_kind that has a specific referrer, while I don't for other event kinds. Notice I don't have an employee ID reference. The reference exists, but is implied. I have application code to validate that person_id and company_id really reference an employee record. The other tables are pretty basic: CREATE TABLE people ( id, name); CREATE TABLE companies ( id, name); CREATE TABLE employees ( id, person_id, company_id); I'm trying to achieve the following report: Referrer Phoned Promised Donated Francois Feb 16th Feb 20th Mar 1st Apple (Steve Jobs) Steve Ballmer Mar 3rd IBM Bill Gates Mar 7th The first row is a people record, the 2nd is an employee, and the 3rd is a company. If I asked for referrer Bill Gates for Phoned event kinds, I'd only see the 3rd row, while asking for Steve and Phoned would return no rows. Right now, I do 3 queries, one for companies, one for people and a last one for employees. I want the event kind columns to be ordered, but I do that in application code and show it properly there. Here's where I'm at so far: SELECT companies.id, companies.name, (SELECT events.id FROM events WHERE events.referrer_id = 1470 AND events.company_id = companies.id AND events.person_id IS NULL AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9, (SELECT events.id FROM events WHERE events.company_id = companies.id AND events.person_id IS NULL AND events.event_kind_id = 10 ORDER BY created_at DESC LIMIT 1) event_kind_10, (SELECT events.created_at FROM events WHERE events.referrer_id = 1470 AND events.company_id = companies.id AND events.person_id IS NULL AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9_order FROM "companies" SELECT people.id, people.name, (SELECT events.id FROM events WHERE events.referrer_id = 1470 AND events.company_id IS NULL AND events.person_id = people.id AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9, (SELECT events.id FROM events WHERE events.company_id IS NULL AND events.person_id = people.id AND events.event_kind_id = 10 ORDER BY created_at DESC LIMIT 1) event_kind_10, (SELECT events.created_at FROM events WHERE events.referrer_id = 1470 AND events.company_id IS NULL AND events.person_id = people.id AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9_order FROM "people" SELECT employees.id, employees.company_id, employees.person_id, (SELECT events.id FROM events WHERE events.referrer_id = 1470 AND events.company_id = employees.company_id AND events.person_id = employees.person_id AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9, (SELECT events.id FROM events WHERE events.company_id = employees.company_id AND events.person_id = employees.person_id AND events.event_kind_id = 10 ORDER BY created_at DESC LIMIT 1) event_kind_10, (SELECT events.created_at FROM events WHERE events.referrer_id = 1470 AND events.company_id = employees.company_id AND events.person_id = employees.person_id AND events.event_kind_id = 9 ORDER BY created_at DESC LIMIT 1) event_kind_9_order FROM "employees" I rather suspect I'm doing this wrong. There should be an "easier" way to do it. One other filter criteria would be to filter on people/company names: WHERE LOWER(companies.name) LIKE '%apple%'. Note that I'm ordering by the dates of event_kind_9 here, and a secondary sort is by person/company name. To summarize: I want to paginate the result set, find the latest event for each cell, order the result set by the date of the latest event, and by company/person name, filter by referrer in some event kinds, but not others. For reference, I'm using PostgreSQL, from Ruby, ActiveRecord/Rails. The solution is pure SQL though.

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  • Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException

    - by Dheeraj kumar
    Hi, I have to read xls file in java.I used poi-3.6 to read xls file in Eclipse.But i m getting this ERROR"Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException at ReadExcel2.main(ReadExcel2.java:38)". I have added following jars 1)poi-3.6-20091214.jar 2)poi-contrib-3.6-20091214.jar 3)poi-examples-3.6-20091214.jar 4)poi-ooxml-3.6-20091214.jar 5)poi-ooxml-schemas-3.6-20091214.jar 6)poi-scratchpad-3.6-20091214.jar Below is the code which i m using: import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFRow; import java.io.FileInputStream; import java.io.IOException; import java.util.Iterator; import java.util.List; import java.util.ArrayList; public class ReadExcel { public static void main(String[] args) throws Exception { // // An excel file name. You can create a file name with a full path // information. // String filename = "C:\\myExcel.xl"; // // Create an ArrayList to store the data read from excel sheet. // List sheetData = new ArrayList(); FileInputStream fis = null; try { // // Create a FileInputStream that will be use to read the excel file. // fis = new FileInputStream(filename); // // Create an excel workbook from the file system. // // HSSFWorkbook workbook = new HSSFWorkbook(fis); Workbook workbook = new XSSFWorkbook(fis); // // Get the first sheet on the workbook. // Sheet sheet = workbook.getSheetAt(0); // // When we have a sheet object in hand we can iterator on each // sheet's rows and on each row's cells. We store the data read // on an ArrayList so that we can printed the content of the excel // to the console. // Iterator rows = sheet.rowIterator(); while (rows.hasNext()) { Row row = (XSSFRow) rows.next(); Iterator cells = row.cellIterator(); List data = new ArrayList(); while (cells.hasNext()) { Cell cell = (XSSFCell) cells.next(); data.add(cell); } sheetData.add(data); } } catch (IOException e) { e.printStackTrace(); } finally { if (fis != null) { fis.close(); } } showExelData(sheetData); } private static void showExelData(List sheetData) { // // Iterates the data and print it out to the console. // for (int i = 0; i < sheetData.size(); i++) { List list = (List) sheetData.get(i); for (int j = 0; j < list.size(); j++) { Cell cell = (XSSFCell) list.get(j); System.out.print(cell.getRichStringCellValue().getString()); if (j < list.size() - 1) { System.out.print(", "); } } System.out.println(""); } } } Please help. thanks in anticipation, Regards, Dheeraj!

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  • Rails 2.3.5 and oauth-plugin

    - by pgb
    I started a rails application from scratch, using Rails 2.3.5, and installed oauth-plugin. The installation was done by running script/plugin install git://github.com/pelle/oauth-plugin.git. Now, when I try to start the server, I get the following errors: => Rails 2.3.5 application starting on http://0.0.0.0:3000 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:440:in `load_missing_constant': uninitialized constant Rails::Railtie (NameError) from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in `const_missing' from /Users/Pablo/Projects/test.oauth/vendor/plugins/oauth-plugin/lib/oauth-plugin.rb:16 from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' from /Users/Pablo/Projects/test.oauth/vendor/plugins/oauth-plugin/rails/init.rb:1:in `evaluate_init_rb' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:158:in `evaluate_init_rb' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:154:in `evaluate_init_rb' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:48:in `load' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:38:in `load_plugins' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:37:in `each' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:37:in `load_plugins' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:369:in `load_plugins' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:165:in `process' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run' from /Users/Pablo/Projects/test.oauth/config/environment.rb:9 from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:84 from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require' from script/server:3 I can't figure out why this is failing. Am I missing a dependency? What other information I can provide to others help me figure this out?

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  • 500 - An error has occurred! DB function reports no errors when adding new article in Joomla!

    - by Roland
    I have an article that I want to publish on my Joomla! site. Every time I click apply or save. I get error 500 - An error has occurred! DB function reports no errors. I have no idea why this error comes up, al I can think is that it's a server error. I'm using TinyMCE to type articles together with Joomla! 1.5.11. Updated: I turned on Maximum error reporting in Joomla! and in the article manager I tried to save the article and got these couple of errors. Please check screenshot I tried adding <?php ini_set('error_reporting', E_ALL); error_reporting(E_ALL); ini_set('log_errors',TRUE); ini_set('html_errors',TRUE); ini_set('display_errors',true); ?> at the top of the index.php pages for Joomla! but it does not show any errors. I checked the error logs on the server and also no errors come up. I managed to publish the article via phpMyAdmin but then something else happens. I try to access to article from the front end, by clicking on the link to the article, but only a blank page comes up. This is really weird, since the error log does not show any information. So I assume the error needs to be coming from Joomla! This happens if I add a print_r($_POST) before if (!$row->check()) { on /administrator/components/com_content/controller.php (around line 693) Array ( [title] => Test. [state] => 0 [alias] => test [frontpage] => 0 [sectionid] => 10 [catid] => 44 [details] => Array ( [created_by] => 62 [created_by_alias] => [access] => 0 [created] => 2008-10-25 13:31:21 [publish_up] => 2008-10-25 13:31:21 [publish_down] => Never ) [params] => Array ( [show_title] => [link_titles] => [show_intro] => [show_section] => [link_section] => [show_category] => [link_category] => [show_vote] => [show_author] => 1 [show_create_date] => 0 [show_modify_date] => 0 [show_pdf_icon] => [show_print_icon] => [show_email_icon] => [language] => [keyref] => [readmore] => ) [meta] => Array ( [description] => Test. [keywords] => Test [robots] => [author] => Test ) [id] => 58 [cid] => Array ( [0] => 58 ) [version] => 30 [mask] => 0 [option] => com_content [task] => apply [ac1e0853fb1b3f41730c0d52de89dab7] => 1 ) I had a bounty on this question, but the problem is still not resolved? link text Any help will be appreciated!! Here is a link to the article (text file with the source I got from TinyMCE) Article

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  • Python: how do I install SciPy on 64 bit Windows?

    - by Peter Mortensen
    How do I install SciPy on my system? Update 1: for the NumPy part (that SciPy depends on) there is actually an installer for 64 bit Windows: numpy-1.3.0.win-amd64-py2.6.msi (is direct download URL, 2310144 bytes). Running the SciPy superpack installer results in this message in a dialog box: "Cannot install. Python version 2.6 required, which was not found in the registry." I already have Python 2.6.2 installed (and a working Django installation in it), but I don't know about any Registry story. The registry entries seems to already exist: REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\Python] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help\Main Python Documentation] @="D:\\Python262\\Doc\\python262.chm" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath] @="D:\\Python262\\" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath\InstallGroup] @="Python 2.6" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Modules] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\PythonPath] @="D:\\Python262\\Lib;D:\\Python262\\DLLs;D:\\Python262\\Lib\\lib-tk" What I have done so far: Step 1 Downloaded the NumPy superpack installer numpy-1.3.0rc2-win32-superpack-python2.6.exe (direct download URL, 4782592 bytes). Running this installer resulted in the same message, "Cannot install. Python version 2.6 required, which was not found in the registry.". Update: there is actually an installer for NumPy that works - see beginning of the question. Step 2 Tried to install NumPy in another way. Downloaded the zip package numpy-1.3.0rc2.zip (direct download URL, 2404011 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\numpy-1.3.0rc2 (where setup.py and README.txt is). I then opened a command line window and: d: cd D:\temp7\numpy-1.3.0rc2 setup.py install This ran for a long time and also included use of cl.exe (part of Visual Studio). Here is a nearly 5000 lines long transcript (230 KB). This seemed to work. I can now do this in Python: import numpy as np np.random.random(10) with this result: array([ 0.35667511, 0.56099423, 0.38423629, 0.09733172, 0.81560421, 0.18813222, 0.10566666, 0.84968066, 0.79472597, 0.30997724]) Step 3 Downloaded the SciPy superpack installer, scipy-0.7.1rc3- win32-superpack-python2.6.exe (direct download URL, 45597175 bytes). Running this installer resulted in the message listed in the beginning Step 4 Tried to install SciPy in another way. Downloaded the zip package scipy-0.7.1rc3.zip (direct download URL, 5506562 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\scipy-0.7.1 (where setup.py and README.txt is). I then opened a command line window and: d: cd D:\temp7\scipy-0.7.1 setup.py install This did not achieve much - here is a transcript (about 95 lines). And it fails: >>> import scipy as sp2 Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named scipy Platform: Python 2.6.2 installed in directory D:\Python262, Windows XP 64 bit SP2, 8 GB RAM, Visual Studio 2008 Professional Edition installed. The startup screen of the installed Python is: Python 2.6.2 (r262:71605, Apr 14 2009, 22:46:50) [MSC v.1500 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> Value of PATH, result from SET in a command line window: Path=D:\Perl64\site\bin;D:\Perl64\bin;C:\Program Files (x86)\PC Connectivity Solution\;D:\Perl\site\bin;D:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;d:\Program Files (x86)\WinSCP\;D:\MassLynx\;D:\Program Files (x86)\Analyst\bin;d:\Python262;d:\Python262\Scripts;D:\Program Files (x86)\TortoiseSVN\bin;D:\Program Files\TortoiseSVN\bin;C:\WINDOWS\system32\WindowsPowerShell\v1.0;D:\Program Files (x86)\IDM Computer Solutions\UltraEdit\

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  • "Content is not allowed in prolog" when parsing perfectly valid XML on GAE

    - by Adrian Petrescu
    Hey guys, I've been beating my head against this absolutely infuriating bug for the last 48 hours, so I thought I'd finally throw in the towel and try asking here before I throw my laptop out the window. I'm trying to parse the response XML from a call I made to AWS SimpleDB. The response is coming back on the wire just fine; for example, it may look like: <?xml version="1.0" encoding="utf-8"?> <ListDomainsResponse xmlns="http://sdb.amazonaws.com/doc/2009-04-15/"> <ListDomainsResult> <DomainName>Audio</DomainName> <DomainName>Course</DomainName> <DomainName>DocumentContents</DomainName> <DomainName>LectureSet</DomainName> <DomainName>MetaData</DomainName> <DomainName>Professors</DomainName> <DomainName>Tag</DomainName> </ListDomainsResult> <ResponseMetadata> <RequestId>42330b4a-e134-6aec-e62a-5869ac2b4575</RequestId> <BoxUsage>0.0000071759</BoxUsage> </ResponseMetadata> </ListDomainsResponse> I pass in this XML to a parser with XMLEventReader eventReader = xmlInputFactory.createXMLEventReader(response.getContent()); and call eventReader.nextEvent(); a bunch of times to get the data I want. Here's the bizarre part -- it works great inside the local server. The response comes in, I parse it, everyone's happy. The problem is that when I deploy the code to Google App Engine, the outgoing request still works, and the response XML seems 100% identical and correct to me, but the response fails to parse with the following exception: com.amazonaws.http.HttpClient handleResponse: Unable to unmarshall response (ParseError at [row,col]:[1,1] Message: Content is not allowed in prolog.): <?xml version="1.0" encoding="utf-8"?> <ListDomainsResponse xmlns="http://sdb.amazonaws.com/doc/2009-04-15/"><ListDomainsResult><DomainName>Audio</DomainName><DomainName>Course</DomainName><DomainName>DocumentContents</DomainName><DomainName>LectureSet</DomainName><DomainName>MetaData</DomainName><DomainName>Professors</DomainName><DomainName>Tag</DomainName></ListDomainsResult><ResponseMetadata><RequestId>42330b4a-e134-6aec-e62a-5869ac2b4575</RequestId><BoxUsage>0.0000071759</BoxUsage></ResponseMetadata></ListDomainsResponse> javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1] Message: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(Unknown Source) at com.sun.xml.internal.stream.XMLEventReaderImpl.nextEvent(Unknown Source) at com.amazonaws.transform.StaxUnmarshallerContext.nextEvent(StaxUnmarshallerContext.java:153) ... (rest of lines omitted) I have double, triple, quadruple checked this XML for 'invisible characters' or non-UTF8 encoded characters, etc. I looked at it byte-by-byte in an array for byte-order-marks or something of that nature. Nothing; it passes every validation test I could throw at it. Even stranger, it happens if I use a Saxon-based parser as well -- but ONLY on GAE, it always works fine in my local environment. It makes it very hard to trace the code for problems when I can only run the debugger on an environment that works perfectly (I haven't found any good way to remotely debug on GAE). Nevertheless, using the primitive means I have, I've tried a million approaches including: XML with and without the prolog With and without newlines With and without the "encoding=" attribute in the prolog Both newline styles With and without the chunking information present in the HTTP stream And I've tried most of these in multiple combinations where it made sense they would interact -- nothing! I'm at my wit's end. Has anyone seen an issue like this before that can hopefully shed some light on it? Thanks!

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  • How to decrypt a string in C# that was encrypted in Delphi

    - by Simon Linder
    Hi all, we have a project written in Delphi that we want to convert to C#. Problem is that we have some passwords and settings that are encrypted and written into the registry. When we need a specified password we get it from the registry and decrypt it so we can use it. For the conversion into C# we have to do it the same way so that the application can also be used by users that have the old version and want to upgrade it. Here is the code we use to encrypt/decrypt strings in Delphi: unit uCrypt; interface function EncryptString(strPlaintext, strPassword : String) : String; function DecryptString(strEncryptedText, strPassword : String) : String; implementation uses DCPcrypt2, DCPblockciphers, DCPdes, DCPmd5; const CRYPT_KEY = '1q2w3e4r5t6z7u8'; function EncryptString(strPlaintext) : String; var cipher : TDCP_3des; strEncryptedText : String; begin if strPlaintext <> '' then begin try cipher := TDCP_3des.Create(nil); try cipher.InitStr(CRYPT_KEY, TDCP_md5); strEncryptedText := cipher.EncryptString(strPlaintext); finally cipher.Free; end; except strEncryptedText := ''; end; end; Result := strEncryptedText; end; function DecryptString(strEncryptedText) : String; var cipher : TDCP_3des; strDecryptedText : String; begin if strEncryptedText <> '' then begin try cipher := TDCP_3des.Create(nil); try cipher.InitStr(CRYPT_KEY, TDCP_md5); strDecryptedText := cipher.DecryptString(strEncryptedText); finally cipher.Free; end; except strDecryptedText := ''; end; end; Result := strDecryptedText; end; end. So for example when we want to encrypt the string asdf1234 we get the result WcOb/iKo4g8=. We now want to decrypt that string in C#. Here is what we tried to do: public static void Main(string[] args) { string Encrypted = "WcOb/iKo4g8="; string Password = "1q2w3e4r5t6z7u8"; string DecryptedString = DecryptString(Encrypted, Password); } public static string DecryptString(string Message, string Passphrase) { byte[] Results; System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding(); // Step 1. We hash the passphrase using MD5 // We use the MD5 hash generator as the result is a 128 bit byte array // which is a valid length for the TripleDES encoder we use below MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider(); byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(Passphrase)); // Step 2. Create a new TripleDESCryptoServiceProvider object TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider(); // Step 3. Setup the decoder TDESAlgorithm.Key = TDESKey; TDESAlgorithm.Mode = CipherMode.ECB; TDESAlgorithm.Padding = PaddingMode.None; // Step 4. Convert the input string to a byte[] byte[] DataToDecrypt = Convert.FromBase64String(Message); // Step 5. Attempt to decrypt the string try { ICryptoTransform Decryptor = TDESAlgorithm.CreateDecryptor(); Results = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length); } finally { // Clear the TripleDes and Hashprovider services of any sensitive information TDESAlgorithm.Clear(); HashProvider.Clear(); } // Step 6. Return the decrypted string in UTF8 format return UTF8.GetString(Results); } Well the result differs from the expected result. After we call DecryptString() we expect to get asdf1234but we get something else. Does anyone have an idea of how to decrypt that correctly? Thanks in advance Simon

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  • NullPointerException in com.sun.tools.jxc.SchemaGenTask

    - by David Collie
    Given this ant script: <?xml version="1.0" encoding="UTF-8"?> <project name="projectname" default="generate-schema" basedir="."> <taskdef name="schemagen" classname="com.sun.tools.jxc.SchemaGenTask"> <classpath> <fileset dir="../BuildJars/lib" includes="*.jar" /> </classpath> </taskdef> <target name="generate-schema"> <schemagen srcdir="src/gb/informaticasystems/messages" destdir="schema"> <schema namespace="http://www.informatica-systems.co.uk/aquarius/messages/1.0" file="messages-1.0.xsd" /> </schemagen> </target> </project> I am getting this error: Buildfile: C:\Users\davidcollie\workspace\aquarius-feature\AquariusServerLibrary\schemagen.xml generate-schema: [schemagen] Generating schema from 4 source files [schemagen] Problem encountered during annotation processing; [schemagen] see stacktrace below for more information. [schemagen] java.lang.NullPointerException [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onDeclaredType(APTNavigator.java:428) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:402) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:456) [schemagen] at com.sun.istack.tools.APTTypeVisitor.apply(APTTypeVisitor.java:27) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:109) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:85) [schemagen] at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.getIndividualType(PropertyInfoImpl.java:190) [schemagen] at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.<init>(PropertyInfoImpl.java:132) [schemagen] at com.sun.xml.bind.v2.model.impl.MapPropertyInfoImpl.<init>(MapPropertyInfoImpl.java:67) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.createMapProperty(ClassInfoImpl.java:917) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.addProperty(ClassInfoImpl.java:874) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findGetterSetterProperties(ClassInfoImpl.java:993) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:303) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:243) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:209) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:315) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:330) [schemagen] at com.sun.tools.xjc.api.impl.j2s.JavaCompilerImpl.bind(JavaCompilerImpl.java:90) [schemagen] at com.sun.tools.jxc.apt.SchemaGenerator$1.process(SchemaGenerator.java:115) [schemagen] at com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.process(AnnotationProcessors.java:60) [schemagen] at com.sun.tools.apt.comp.Apt.main(Apt.java:454) [schemagen] at com.sun.tools.apt.main.JavaCompiler.compile(JavaCompiler.java:258) [schemagen] at com.sun.tools.apt.main.Main.compile(Main.java:1102) [schemagen] at com.sun.tools.apt.main.Main.compile(Main.java:964) [schemagen] at com.sun.tools.apt.Main.processing(Main.java:95) [schemagen] at com.sun.tools.apt.Main.process(Main.java:85) [schemagen] at com.sun.tools.apt.Main.process(Main.java:67) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [schemagen] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [schemagen] at java.lang.reflect.Method.invoke(Method.java:597) [schemagen] at com.sun.tools.jxc.AptBasedTask$InternalAptAdapter.execute(AptBasedTask.java:97) [schemagen] at com.sun.tools.jxc.AptBasedTask.compile(AptBasedTask.java:144) [schemagen] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:820) [schemagen] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [schemagen] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [schemagen] at java.lang.reflect.Method.invoke(Method.java:597) [schemagen] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105) [schemagen] at org.apache.tools.ant.Task.perform(Task.java:348) [schemagen] at org.apache.tools.ant.Target.execute(Target.java:357) [schemagen] at org.apache.tools.ant.Target.performTasks(Target.java:385) [schemagen] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329) [schemagen] at org.apache.tools.ant.Project.executeTarget(Project.java:1298) [schemagen] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) [schemagen] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32) [schemagen] at org.apache.tools.ant.Project.executeTargets(Project.java:1181) [schemagen] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423) [schemagen] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137) BUILD FAILED C:\Users\davidcollie\workspace\aquarius-feature\AquariusServerLibrary\schemagen.xml:11: schema generation failed Total time: 1 second Any ideas?

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  • Call Webservice without adding a WebReference - with Complex Types

    - by ck
    I'm using the code at This Site to call a webservice dynamically. [SecurityPermissionAttribute(SecurityAction.Demand, Unrestricted = true)] public static object CallWebService(string webServiceAsmxUrl, string serviceName, string methodName, object[] args) { System.Net.WebClient client = new System.Net.WebClient(); //-Connect To the web service using (System.IO.Stream stream = client.OpenRead(webServiceAsmxUrl + "?wsdl")) { //--Now read the WSDL file describing a service. ServiceDescription description = ServiceDescription.Read(stream); ///// LOAD THE DOM ///////// //--Initialize a service description importer. ServiceDescriptionImporter importer = new ServiceDescriptionImporter(); importer.ProtocolName = "Soap12"; // Use SOAP 1.2. importer.AddServiceDescription(description, null, null); //--Generate a proxy client. importer.Style = ServiceDescriptionImportStyle.Client; //--Generate properties to represent primitive values. importer.CodeGenerationOptions = System.Xml.Serialization.CodeGenerationOptions.GenerateProperties; //--Initialize a Code-DOM tree into which we will import the service. CodeNamespace nmspace = new CodeNamespace(); CodeCompileUnit unit1 = new CodeCompileUnit(); unit1.Namespaces.Add(nmspace); //--Import the service into the Code-DOM tree. This creates proxy code //--that uses the service. ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit1); if (warning == 0) //--If zero then we are good to go { //--Generate the proxy code CodeDomProvider provider1 = CodeDomProvider.CreateProvider("CSharp"); //--Compile the assembly proxy with the appropriate references string[] assemblyReferences = new string[5] { "System.dll", "System.Web.Services.dll", "System.Web.dll", "System.Xml.dll", "System.Data.dll" }; CompilerParameters parms = new CompilerParameters(assemblyReferences); CompilerResults results = provider1.CompileAssemblyFromDom(parms, unit1); //-Check For Errors if (results.Errors.Count > 0) { StringBuilder sb = new StringBuilder(); foreach (CompilerError oops in results.Errors) { sb.AppendLine("========Compiler error============"); sb.AppendLine(oops.ErrorText); } throw new System.ApplicationException("Compile Error Occured calling webservice. " + sb.ToString()); } //--Finally, Invoke the web service method Type foundType = null; Type[] types = results.CompiledAssembly.GetTypes(); foreach (Type type in types) { if (type.BaseType == typeof(System.Web.Services.Protocols.SoapHttpClientProtocol)) { Console.WriteLine(type.ToString()); foundType = type; } } object wsvcClass = results.CompiledAssembly.CreateInstance(foundType.ToString()); MethodInfo mi = wsvcClass.GetType().GetMethod(methodName); return mi.Invoke(wsvcClass, args); } else { return null; } } } This works fine when I use built in types, but for my own classes, I get this: Event Type: Error Event Source: TDX Queue Service Event Category: None Event ID: 0 Date: 12/04/2010 Time: 12:12:38 User: N/A Computer: TDXRMISDEV01 Description: System.ArgumentException: Object of type 'TDXDataTypes.AgencyOutput' cannot be converted to type 'AgencyOutput'. Server stack trace: at System.RuntimeType.CheckValue(Object value, Binder binder, CultureInfo culture, BindingFlags invokeAttr) at System.Reflection.MethodBase.CheckArguments(Object[] parameters, Binder binder, BindingFlags invokeAttr, CultureInfo culture, Signature sig) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) at TDXQueueEngine.GenericWebserviceProxy.CallWebService(String webServiceAsmxUrl, String serviceName, String methodName, Object[] args) in C:\CkAdmDev\TDXQueueEngine\TDXQueueEngine\TDXQueueEngine\GenericWebserviceProxy.cs:line 76 at TDXQueueEngine.TDXQueueWebserviceItem.Run() in C:\CkAdmDev\TDXQueueEngine\TDXQueueEngine\TDXQueueEngine\TDXQueueWebserviceItem.cs:line 99 at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase) at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed, MessageData& msgData) at TDXQueueEngine.TDXQueue.RunProcess.EndInvoke(IAsyncResult result) at TDXQueueEngine.TDXQueue.processComplete(IAsyncResult ar) in C:\CkAdmDev\TDXQueueEngine\TDXQueueEngine\TDXQueueEngine\TDXQueue.cs:line 130 For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. The classes reference the same assembly and the same version. Do I need to include my assembly as a reference when building the temporary assembly? If so, how? Thanks.

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  • Rendering a WPF Network Map/Graph layout - Manual? PathListBox? Something Else?

    - by Ben Von Handorf
    I'm writing code to present the user with a simplified network map. At any given time, the map is focused on a specific item... say a router or a server. Based on the focused item, other network entities are grouped into sets (i.e. subnets or domains) and then rendered around the focused item. Lines would represent connections and groups would be visually grouped inside a rectangle or ellipse. Panning and zooming are required features. An item can be selected to display more information in a "properties" style window. An item could also be double-clicked to re-focus the entire network map on that item. At that point, the entire map would be re-calculated. I am using MVVM without any framework, as of yet. Assume the logic for grouping items and determining what should be shown or not is all in place. I'm looking for the best way to approach the UI layout. So far, I'm aware of the following options: Use a canvas for layout (inside a ScrollViewer to handle the panning). Have my ViewModel make use of a Layout Manager type of class, which would handle assigning all the layout properties (Top, Left, etc.). Bind my set of display items to an ItemsControl and use Data Templates to handle the actual rendering. The drawbacks with this approach: Highly manual layout on my part. Lots of calculation. I have to handle item selection manually. Computation of connecting lines is manual. The Pros of this approach: I can draw additional lines between child subnets as appropriate (manually). Additional LayoutManagers could be added later to render the display differently. This could probably be wrapped up into some sort of a GraphLayout control to be re-used. Present the focused item at the center of the display and then use a PathListBox for layout of the additional items. Have my ViewModel expose a simple list of things to be drawn and bind them to the PathListBox. Override the ListBoxItem Template to also create a line geometry from the borders of the focused item (tricky) to the bound item. Use DataTemplates to handle the case where the item being bound is a subnet, in which case we would use another PathListBox in the template to display items inside the subnet. The drawbacks with this approach: Selected Item synchronization across multiple `PathListBox`es. Only one item on the whole graph can be selected at a time, but each child PathListBox maintains its own selection. Also, subnets cannot be selected, but would be selectable without additional work. Drawing the connecting lines is going to be a bit of trickery in the ListBoxItem template, since I need to know the correct side of the focused item to connect to. The pros of this approach: I get to stay out of the layout business, more. I'm looking for any advice or thoughts from others who have encountered similar issues or who have more WPF experience than I. I'm using WPF 4, so any new tricks are legal and encouraged.

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  • Migrate from MySQL to PostgreSQL on Linux (Kubuntu)

    - by Dave Jarvis
    A long time ago in a galaxy far, far away... Trying to migrate a database from MySQL to PostgreSQL. All the documentation I have read covers, in great detail, how to migrate the structure. I have found very little documentation on migrating the data. The schema has 13 tables (which have been migrated successfully) and 9 GB of data. MySQL version: 5.1.x PostgreSQL version: 8.4.x I want to use the R programming language to analyze the data using SQL select statements; PostgreSQL has PL/R, but MySQL has nothing (as far as I can tell). A New Hope Create the database location (/var has insufficient space; also dislike having the PostgreSQL version number everywhere -- upgrading would break scripts!): sudo mkdir -p /home/postgres/main sudo cp -Rp /var/lib/postgresql/8.4/main /home/postgres sudo chown -R postgres.postgres /home/postgres sudo chmod -R 700 /home/postgres sudo usermod -d /home/postgres/ postgres All good to here. Next, restart the server and configure the database using these installation instructions: sudo apt-get install postgresql pgadmin3 sudo /etc/init.d/postgresql-8.4 stop sudo vi /etc/postgresql/8.4/main/postgresql.conf Change data_directory to /home/postgres/main sudo /etc/init.d/postgresql-8.4 start sudo -u postgres psql postgres \password postgres sudo -u postgres createdb climate pgadmin3 Use pgadmin3 to configure the database and create a schema. The episode continues in a remote shell known as bash, with both databases running, and the installation of a set of tools with a rather unusual logo: SQL Fairy. perl Makefile.PL sudo make install sudo apt-get install perl-doc (strangely, it is not called perldoc) perldoc SQL::Translator::Manual Extract a PostgreSQL-friendly DDL and all the MySQL data: sqlt -f DBI --dsn dbi:mysql:climate --db-user user --db-password password -t PostgreSQL > climate-pg-ddl.sql mysqldump --skip-add-locks --complete-insert --no-create-db --no-create-info --quick --result-file="climate-my.sql" --databases climate --skip-comments -u root -p The Database Strikes Back Recreate the structure in PostgreSQL as follows: pgadmin3 (switch to it) Click the Execute arbitrary SQL queries icon Open climate-pg-ddl.sql Search for TABLE " replace with TABLE climate." (insert the schema name climate) Search for on " replace with on climate." (insert the schema name climate) Press F5 to execute This results in: Query returned successfully with no result in 122 ms. Replies of the Jedi At this point I am stumped. Where do I go from here (what are the steps) to convert climate-my.sql to climate-pg.sql so that they can be executed against PostgreSQL? How to I make sure the indexes are copied over correctly (to maintain referential integrity; I don't have constraints at the moment to ease the transition)? How do I ensure that adding new rows in PostgreSQL will start enumerating from the index of the last row inserted (and not conflict with an existing primary key from the sequence)? How do you ensure the schema name comes through when transforming the data from MySQL to PostgreSQL inserts? Resources A fair bit of information was needed to get this far: https://help.ubuntu.com/community/PostgreSQL http://articles.sitepoint.com/article/site-mysql-postgresql-1 http://wiki.postgresql.org/wiki/Converting_from_other_Databases_to_PostgreSQL#MySQL http://pgfoundry.org/frs/shownotes.php?release_id=810 http://sqlfairy.sourceforge.net/ Thank you!

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  • Is there a C pre-processor which eliminates #ifdef blocks based on values defined/undefined?

    - by Jonathan Leffler
    Original Question What I'd like is not a standard C pre-processor, but a variation on it which would accept from somewhere - probably the command line via -DNAME1 and -UNAME2 options - a specification of which macros are defined, and would then eliminate dead code. It may be easier to understand what I'm after with some examples: #ifdef NAME1 #define ALBUQUERQUE "ambidextrous" #else #define PHANTASMAGORIA "ghostly" #endif If the command were run with '-DNAME1', the output would be: #define ALBUQUERQUE "ambidextrous" If the command were run with '-UNAME1', the output would be: #define PHANTASMAGORIA "ghostly" If the command were run with neither option, the output would be the same as the input. This is a simple case - I'd be hoping that the code could handle more complex cases too. To illustrate with a real-world but still simple example: #ifdef USE_VOID #ifdef PLATFORM1 #define VOID void #else #undef VOID typedef void VOID; #endif /* PLATFORM1 */ typedef void * VOIDPTR; #else typedef mint VOID; typedef char * VOIDPTR; #endif /* USE_VOID */ I'd like to run the command with -DUSE_VOID -UPLATFORM1 and get the output: #undef VOID typedef void VOID; typedef void * VOIDPTR; Another example: #ifndef DOUBLEPAD #if (defined NT) || (defined OLDUNIX) #define DOUBLEPAD 8 #else #define DOUBLEPAD 0 #endif /* NT */ #endif /* !DOUBLEPAD */ Ideally, I'd like to run with -UOLDUNIX and get the output: #ifndef DOUBLEPAD #if (defined NT) #define DOUBLEPAD 8 #else #define DOUBLEPAD 0 #endif /* NT */ #endif /* !DOUBLEPAD */ This may be pushing my luck! Motivation: large, ancient code base with lots of conditional code. Many of the conditions no longer apply - the OLDUNIX platform, for example, is no longer made and no longer supported, so there is no need to have references to it in the code. Other conditions are always true. For example, features are added with conditional compilation so that a single version of the code can be used for both older versions of the software where the feature is not available and newer versions where it is available (more or less). Eventually, the old versions without the feature are no longer supported - everything uses the feature - so the condition on whether the feature is present or not should be removed, and the 'when feature is absent' code should be removed too. I'd like to have a tool to do the job automatically because it will be faster and more reliable than doing it manually (which is rather critical when the code base includes 21,500 source files). (A really clever version of the tool might read #include'd files to determine whether the control macros - those specified by -D or -U on the command line - are defined in those files. I'm not sure whether that's truly helpful except as a backup diagnostic. Whatever else it does, though, the pseudo-pre-processor must not expand macros or include files verbatim. The output must be source similar to, but usually simpler than, the input code.) Status Report (one year later) After a year of use, I am very happy with 'sunifdef' recommended by the selected answer. It hasn't made a mistake yet, and I don't expect it to. The only quibble I have with it is stylistic. Given an input such as: #if (defined(A) && defined(B)) || defined(C) || (defined(D) && defined(E)) and run with '-UC' (C is never defined), the output is: #if defined(A) && defined(B) || defined(D) && defined(E) This is technically correct because '&&' binds tighter than '||', but it is an open invitation to confusion. I would much prefer it to include parentheses around the sets of '&&' conditions, as in the original: #if (defined(A) && defined(B)) || (defined(D) && defined(E)) However, given the obscurity of some of the code I have to work with, for that to be the biggest nit-pick is a strong compliment; it is valuable tool to me. The New Kid on the Block Having checked the URL for inclusion in the information above, I see that (as predicted) there is an new program called Coan that is the successor to 'sunifdef'. It is available on SourceForge and has been since January 2010. I'll be checking it out...further reports later this year, or maybe next year, or sometime, or never.

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  • Visual Basic Cryptography Question

    - by Glenn Sullivan
    I am trying to mimic the results of some C code that uses the OpenSSL library using the system.security.crytography library in the .net 3.5 world, and I can't seem to get it right. I need some help... part of the issue is my understanding of crytography in general. Here's what is supposed to happen: I send a request for authentication to a device. It returns a challenge digest, which I then need to sign with a known key and return The device returns a "success" or "Fail" message. I have the following code snippet that I am trying to "copy": //Seed the PRNG //Cheating here - the PRNG will be seeded when we create a key pair //The key pair is discarded only doing this to seed the PRNG. DSA *temp_dsa = DSA_new(); if(!temp_dsa) { printf("Error: The client had an error with the DSA API\n"); exit(0); } unsigned char seed[20] = "Our Super Secret Key"; temp_dsa = DSA_generate_parameters(128, seed, sizeof(seed), NULL, NULL, NULL, NULL); DSA_free(temp_dsa); //A pointer to the private key. p = (unsigned char *)&priv_key; //Create and allocate a DSA structure from the private key. DSA *priv_dsa = NULL; priv_dsa = d2i_DSAPrivateKey(NULL, &p, sizeof(priv_key)); if(!priv_dsa) { printf("Error: The client had an error with the DSA API\n"); exit(0); } //Allocate memory for the to be computed signature. sigret = OPENSSL_malloc(DSA_size(priv_dsa)); //Sign the challenge digest recieved from the ISC. retval = DSA_sign(0, pResp->data, pResp->data_length, sigret, &siglen, priv_dsa); A few more bits of information: priv_key is a 252 element character array of hex characters that is included. The end result is a 512 (or less) array of characters to send back for validation to the device. Rasmus asked to see the key array. Here it is: unsigned char priv_key[] = {0x30, 0x81, 0xf9, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00, 0xfe, 0xca, 0x97, 0x55, 0x1f, 0xc0, 0xb7, 0x1f, 0xad, 0xf0, 0x93, 0xec, 0x4b, 0x31, 0x94, 0x78, 0x86, 0x82, 0x1b, 0xab, 0xc4, 0x9e, 0x5c, 0x40, 0xd9, 0x89, 0x7d, 0xde, 0x43, 0x38, 0x06, 0x4f, 0x1b, 0x2b, 0xef, 0x5c, 0xb7, 0xff, 0x21, 0xb1, 0x11, 0xe6, 0x9a, 0x81, 0x9a, 0x2b, 0xef, 0x3a, 0xbb, 0x5c, 0xea, 0x76, 0xae, 0x3a, 0x8b, 0x92, 0xd2, 0x7c, 0xf1, 0x89, 0x8e, 0x4d, 0x3f, 0x0d, 0x02, 0x15, 0x00, 0x88, 0x16, 0x1b, 0xf5, 0xda, 0x43, 0xee, 0x4b, 0x58, 0xbb, 0x93, 0xea, 0x4e, 0x2b, 0xda, 0xb9, 0x17, 0xd1, 0xff, 0x21, 0x02, 0x41, 0x00, 0xf6, 0xbb, 0x45, 0xea, 0xda, 0x72, 0x39, 0x4f, 0xc1, 0xdd, 0x02, 0xb4, 0xf3, 0xaa, 0xe5, 0xe2, 0x76, 0xc7, 0xdc, 0x34, 0xb2, 0x0a, 0xd8, 0x69, 0x63, 0xc3, 0x40, 0x2c, 0x58, 0xea, 0xa6, 0xbd, 0x24, 0x8b, 0x6b, 0xaa, 0x4b, 0x41, 0xfc, 0x5f, 0x21, 0x02, 0x3c, 0x27, 0xa9, 0xc7, 0x7a, 0xc8, 0x59, 0xcd, 0x5b, 0xdd, 0x6c, 0x44, 0x48, 0x86, 0xd1, 0x34, 0x46, 0xb0, 0x89, 0x55, 0x50, 0x87, 0x02, 0x41, 0x00, 0x80, 0x29, 0xc6, 0x4a, 0x08, 0x3e, 0x30, 0x54, 0x71, 0x9b, 0x95, 0x49, 0x55, 0x17, 0x70, 0xc7, 0x96, 0x65, 0xc8, 0xc2, 0xe2, 0x8a, 0xe0, 0x5d, 0x9f, 0xe4, 0xb2, 0x1f, 0x20, 0x83, 0x70, 0xbc, 0x88, 0x36, 0x03, 0x29, 0x59, 0xcd, 0xc7, 0xcd, 0xd9, 0x4a, 0xa8, 0x65, 0x24, 0x6a, 0x77, 0x8a, 0x10, 0x88, 0x0d, 0x2f, 0x15, 0x4b, 0xbe, 0xba, 0x13, 0x23, 0xa1, 0x73, 0xa3, 0x04, 0x37, 0xc9, 0x02, 0x14, 0x06, 0x8e, 0xc1, 0x41, 0x40, 0xf1, 0xf6, 0xe1, 0xfa, 0xfb, 0x64, 0x28, 0x02, 0x15, 0xce, 0x47, 0xaa, 0xce, 0x6e, 0xfe}; Can anyone help me translate this code to it's VB.net crypto equivalent? TIA, Glenn

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  • W3WP crashes when initializing a collection

    - by asbjornu
    I've created an ASP.NET MVC application that has an initializer attached to the PreApplicationStartMethodAttribute. When initializing, a collection is instantiated that implements an interface I've defined. When I instantiate this collection, w3wp.exe crashes with the following two incomprehensible entries in the event log: Faulting application name: w3wp.exe, version: 7.5.7600.16385, time stamp: 0x4a5bd0eb Faulting module name: clr.dll, version: 4.0.30319.1, time stamp: 0x4ba21eeb Exception code: 0xc00000fd Fault offset: 0x0000000000001177 Faulting process id: 0x1348 Faulting application start time: 0x01cb0224882f4723 Faulting application path: c:\windows\system32\inetsrv\w3wp.exe Faulting module path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll Report Id: c6a0941e-6e17-11df-864d-000acd16dcdb And: Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: w3wp.exe P2: 7.5.7600.16385 P3: 4a5bd0eb P4: clr.dll P5: 4.0.30319.1 P6: 4ba21eeb P7: c00000fd P8: 0000000000001177 P9: P10: Attached files: These files may be available here: Analysis symbol: Rechecking for solution: 0 Report Id: c6a0941e-6e17-11df-864d-000acd16dcdb Report Status: 0 If I remove the instantiation of the collection, the application starts normally. If I leave the instantiation, w3wp crashes. If I modify the interface, w3wp still crashes. I've tried every variation I could come up with on the theme of keeping the instantiation but doing everything else differently, but w3wp still crashes. My biggest issue here is that I have absolutely no idea why w3wp is crashing. It's not a StackOverflowException or anything concrete like that, all I get is the unintelligent junk cited above. I've tried to use DebugDiag and IISState to debug the w3wp process, but DebugDiag is only available for post-dump analysis in x64 (I'm running on Windows 7 x64, so the w3wp process is thus 64 bit) and IISStat says the following when I try to run it: D:\Programs\iisstate>IISState.exe -p 9204 -d Symbol search path is: SRV*D:\Programs\iisstate\symbols*http://msdl.microsoft.com/download/symbols IISState is limited to processes associated with IIS. If you require a generic debugger, please use WinDBG or CDB. They are available for download from http://www.microsoft.com/ddk/debugging. This error may also occur if a debugger is already attached to the process being checked. Incorrect Process Attachment I've double-checked 10 times that the process ID of my w3wp process is correct. I'm suspecting that IISState too only can debug x86 processes. Setting a breakpoint anywhere in the application does absolutely nothing. The break point isn't hit and w3wp crashes as soon as the request comes through to IIS from the browser. Starting the application with F5 in Visual Studio 2010 or starting another application to get the w3wp process up and running and then attaching the VS2010 debugger to it and then visiting the faulting application doesn't help. I've also tried to add an HTTP module as described in KB-911816 as well as add this to my web.config file: <configuration> <runtime> <legacyUnhandledExceptionPolicy enabled="true" /> </runtime> </configuration> Needless to say, it makes absolutely no difference. So I'm left with no way to debug the w3wp process, no way to extract any information from it and complete garbage dumped in my event log. If anybody has any idea on how to debug this problem, please let me know! Update My collection was initialized based on RouteTable.Routes which might have thrown an exception (perhaps by not being initialized itself yet in such an early stage of the ASP.NET lifecycle). Postponing the communication with RouteTable.Routes until a later stage solved the problem. While I don't really need an answer to this question anymore, I still find it so obscure that I'll leave it for anyone to comment on and answer, because I found no existing posts on this problem anywhere, so it might be of good reference in the future.

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  • C++ custom exceptions: run time performance and passing exceptions from C++ to C

    - by skyeagle
    I am writing a custom C++ exception class (so I can pass exceptions occuring in C++ to another language via a C API). My initial plan of attack was to proceed as follows: //C++ myClass { public: myClass(); ~myClass(); void foo() // throws myException int foo(const int i, const bool b) // throws myException } * myClassPtr; // C API #ifdef __cplusplus extern "C" { #endif myClassPtr MyClass_New(); void MyClass_Destroy(myClassPtr p); void MyClass_Foo(myClassPtr p); int MyClass_FooBar(myClassPtr p, int i, bool b); #ifdef __cplusplus }; #endif I need a way to be able to pass exceptions thrown in the C++ code to the C side. The information I want to pass to the C side is the following: (a). What (b). Where (c). Simple Stack Trace (just the sequence of error messages in order they occured, no debugging info etc) I want to modify my C API, so that the API functions take a pointer to a struct ExceptionInfo, which will contain any exception info (if an exception occured) before consuming the results of the invocation. This raises two questions: Question 1 1. Implementation of each of the C++ methods exposed in the C API needs to be enclosed in a try/catch statement. The performance implications for this seem quite serious (according to this article): "It is a mistake (with high runtime cost) to use C++ exception handling for events that occur frequently, or for events that are handled near the point of detection." At the same time, I remember reading somewhere in my C++ days, that all though exception handling is expensive, it only becmes expensive when an exception actually occurs. So, which is correct?. what to do?. Is there an alternative way that I can trap errors safely and pass the resulting error info to the C API?. Or is this a minor consideration (the article after all, is quite old, and hardware have improved a bit since then). Question 2 I wuld like to modify the exception class given in that article, so that it contains a simple stack trace, and I need some help doing that. Again, in order to make the exception class 'lightweight', I think its a good idea not to include any STL classes, like string or vector (good idea/bad idea?). Which potentially leaves me with a fixed length C string (char*) which will be stack allocated. So I can maybe just keep appending messages (delimted by a unique separator [up to maximum length of buffer])... Its been a while since I did any serious C++ coding, and I will be grateful for the help. BTW, this is what I have come up with so far (I am intentionally, not deriving from std::exception because of the performance reasons mentioned in the article, and I am instead, throwing an integral exception (based on an exception enumeration): class fast_exception { public: fast_exception(int what, char const* file=0, int line=0) : what_(what), line_(line), file_(file) {/*empty*/} int what() const { return what_; } int line() const { return line_; } char const* file() const { return file_; } private: int what_; int line_; char const[MAX_BUFFER_SIZE] file_; }

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  • WPF Binding Error reported when Binding appears to work fine

    - by Noldorin
    I am trying to create a custom TabItem template/style in my WPF 4.0 application (using VS 2010 Pro RTM), but inspite of everything seeming to work correctly, I am noticing a binding error in the trace window. The resource dictionary XAML I use to style the TabItems of a TabControl is given in full here. (Just create a simple TabControl with several items and apply the given ResourceDictionary to test it out.) Specifically, the error is occurring due to the following line (discovered through trial and error testing, since Visual Studio isn't actually reporting it at design tim <TranslateTransform X="{Binding ActualWidth, ElementName=leftSideBorderPath}"/> The full error given in the trace (Ouput window) is the following: System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=ActualWidth; DataItem=null; target element is 'TranslateTransform' (HashCode=35345840); target property is 'X' (type 'Double') The error occurs on load and is repeated 5 times then (note that I have 3 tab items in my example). It also occurs consistently and repeatedly whenever for the Window is resized, for example - filling the Output window. Perhaps every time the TabItem layout is updated? And again, though it is not reported, the error very much seems to be due to the fact that I am binding to any element at all, not specifically leftSideBorderPath or the the ActualWidth propertry. For example, changing this line to the following fixes things. <TranslateTransform X="25"/> Unfortunately, hard-coding the value isn't really an option. This issue seems very strange to me in that the binding does appear to be giving the correct results. (Inspecting the X value of the TranslateTransform at runtime clearly shows the correct bound value, and the ClipGeometry when viewed is exactly what it hsould be.) Neither Visual Studio nor WPF seems to be giving me any more information on the cause of the error perhaps (setting PresentationTraceSources.TraceLevel to High doesn't help), yet the fact that things are working despite the error being reported inclines me to think that this is some fringe-case WPF bug. As a side note, the Visual Studio WPF designer and XAML editor are giving me a problem with the following line: <PathGeometry Figures="{Binding Source={StaticResource TabSideFillFigures}}"/> Although WPF (at runtime) is perfectly happy binding Figures to the TabSideFillFigures string, with the Binding enforcing the use of the TypeConverter, the XAML editor and WPF designer are complaining. All the XAML code for the ControlTemplate is underlined and I get the following errors in the Error List: Error 9 '{DependencyProperty.UnsetValue}' is not a valid value for the 'System.Windows.Controls.Control.Template' property on a Setter. C:\Users\Alex\Documents\Visual Studio 2010\Projects\Ircsil\devel\Ircsil\MainWindow.xaml 1 1 Ircsil Error 10 Object reference not set to an instance of an object. C:\Users\Alex\Documents\Visual Studio 2010\Projects\Ircsil\devel\Ircsil\Skins\Default\MainSkin.xaml 58 17 Ircsil Again, to repeat, everything works perfectly well at runtime, which is what makes this particularly odd... Could someone perhaps shed some light on these issues, in particular the first (which seems to be a potential WPF bug), and the latter (which seems to be a Visual Studio bug). Any sort of feedback or suggestions would be much appreciated!

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  • Button click does not start Service in Android App Widget

    - by Feanor
    I'm having trouble starting a Service to update an AppWidget that I'm creating as an exercise. I'm trying to get the latitude and longitude of spoofed location data from DDMS to display in the widget. The widget uses a service to update the TextView, which may be slightly overkill, but I wanted to follow the template that seems to be common in AppWidgets that do more work (like the Forecast widget or the Wiktionary widget). Right now, I'm not getting any error messages or strange behavior; nothing at all happens when the button is pressed. I'm a bit mystified as to what might be wrong. Could anyone out there point me in the right direction? Additionally, if my logic for location is faulty, I'd love recommendations on that too. I've looked at several blogs, the Google examples, and the documentation, but I feel a little fuzzy on how it works. Here is the current state of the widget: public class Widget extends AppWidgetProvider { static final String TAG = "Widget"; /** * {@inheritDoc} */ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // Create an intent to launch the service Intent serviceIntent = new Intent(context, UpdateService.class); // PendingIntent is required for the onClickPendingIntent that actually // starts the service from a button click PendingIntent pendingServiceIntent = PendingIntent.getService(context, 0, serviceIntent, 0); // Get the layout for the App Widget and attach a click listener to the // button RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.main); views.setOnClickPendingIntent(R.id.address_button, pendingServiceIntent); super.onUpdate(context, appWidgetManager, appWidgetIds); } // To prevent any ANR timeouts, we perform the update in a service; // really should have its own thread too public static class UpdateService extends Service { static final String TAG = "UpdateService"; private LocationManager locationManager; private Location currentLocation; private double latitude; private double longitude; public void onStart(Intent intent, int startId) { // Get a LocationManager from the system services locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); // Register for updates from spoofed GPS locationManager.requestLocationUpdates("gps", 30000L, 0.0f, new LocationListener() { @Override public void onLocationChanged(Location location) { currentLocation = location; } @Override public void onProviderDisabled(String provider) {} @Override public void onProviderEnabled(String provider) {} @Override public void onStatusChanged(String provider, int status, Bundle extras) {} }); // Get the last known location from GPS currentLocation = locationManager.getLastKnownLocation("gps"); // Build the widget update RemoteViews updateViews = buildUpdate(this); // Push update for this widget to the home screen ComponentName thisWidget = new ComponentName(this, Widget.class); // AppWidgetManager updates AppWidget state; gets information about // installed AppWidget providers and other AppWidget related state AppWidgetManager manager = AppWidgetManager.getInstance(this); // Updates the views based on the RemoteView returned from the // buildUpdate method (stored in updateViews) manager.updateAppWidget(thisWidget, updateViews); } public RemoteViews buildUpdate(Context context) { latitude = currentLocation.getLatitude(); longitude = currentLocation.getLongitude(); RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.main); updateViews.setTextViewText(R.id.latitude_text, "" + latitude); updateViews.setTextViewText(R.id.longitude_text, "" + longitude); return updateViews; } @Override public IBinder onBind(Intent intent) { // We don't need to bind to this service return null; } } }

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  • Debugging Silverlight crash

    - by RHLopez
    I am trying to debug an IE 8 crash caused by a Silverlight application. I managed to find some articles on how to do a memory dump when a process crashes. I loaded the dump in windbg and ran !analyze -v. Below is the result. I am stuck at what further steps I can take to figure out what module or library that is running in Silverlight is causing the crash. So all I have right now is the crash in IE is caused by an Access violation (attempt to execute non-executable address) and from what is in the stack trace that some animation is running in Silverlight. Any tips or articles that would help me debug this will be appreciated. This dump file has an exception of interest stored in it. The stored exception information can be accessed via .ecxr. (1864.1560): Access violation - code c0000005 (first/second chance not available) eax=00000000 ebx=00000000 ecx=1b11fc58 edx=5c6f007d esi=00000000 edi=193b8e08 eip=00000000 esp=0f61f750 ebp=0f61f76c iopl=0 nv up ei pl nz na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010206 00000000 ?? ??? FAULTING_IP: +56b3952f04ebde68 748bc9f1 654c dec esp EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff) ExceptionAddress: 748bc9f1 ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 00000008 Parameter[1]: 00000000 Attempt to execute non-executable address 00000000 PROCESS_NAME: iexplore.exe ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. EXCEPTION_PARAMETER1: 00000008 EXCEPTION_PARAMETER2: 00000000 WRITE_ADDRESS: 00000000 FOLLOWUP_IP: agcore!CFrameworkElement::SetValue+1d7 5c704fa8 84c0 test al,al FAILED_INSTRUCTION_ADDRESS: +56b3952f04ebde68 748bc9f1 654c dec esp NTGLOBALFLAG: 0 APPLICATION_VERIFIER_FLAGS: 0 FAULTING_THREAD: 00001560 BUGCHECK_STR: APPLICATION_FAULT_SOFTWARE_NX_FAULT_NULL PRIMARY_PROBLEM_CLASS: SOFTWARE_NX_FAULT_NULL DEFAULT_BUCKET_ID: SOFTWARE_NX_FAULT_NULL LAST_CONTROL_TRANSFER: from 5c704fa8 to 00000000 STACK_TEXT: WARNING: Frame IP not in any known module. Following frames may be wrong. 0f61f74c 5c704fa8 1b17a134 193b8e08 0e690e14 0x0 0f61f76c 5c712360 0e690e14 1b17a134 0e690e14 agcore!CFrameworkElement::SetValue+0x1d7 0f61f788 5c7123a8 0e690e14 1b17a134 0e690e14 agcore!CShape::SetValue+0x72 0f61f7a0 5c70a6ff 0e690e14 1b17a134 00000000 agcore!CEllipse::SetValue+0x3b 0f61f7d0 5c752c2b 1b17a090 193b8e08 00000000 agcore!CAnimation::DoSetValue+0x50 0f61f810 5c7a7fb1 0f61f884 0f61f868 1b17a090 agcore!CAnimation::UpdateAnimationUsingKeyFrames+0x3b5 0f61f82c 5c707146 00000000 00000000 00000000 agcore!CAnimation::UpdateAnimation+0x184 0f61f87c 5c7071e5 3e4c8000 0f61f8cc 00000000 agcore!CTimeline::ComputeState+0x13a 0f61f89c 5c706d49 193f82b0 0f61f8cc 0f61f8d4 agcore!CTimelineGroup::ComputeState+0x8c 0f61f8ac 5c7069c7 3e4c8000 0f61f8cc 0b111f60 agcore!CStoryboard::ComputeState+0x48 0f61f8d4 5c706a29 0e6a0ca0 00000000 0e490070 agcore!CTimeManager::Tick+0x79 0f61f8e8 5c78f960 0b0e6d68 0f61f990 00000000 agcore!CCoreServices::Tick+0x21 0f61f940 5c706ac2 0b111f60 0e42ca08 ffffffff agcore!CCoreServices::Draw+0x140 0f61f964 67ac141c 0af99b90 00000000 0f61f990 agcore!CCoreServices::Draw+0x2d 0f61f9b4 67a933c2 0f61f9c8 00000000 00000000 npctrl!CXcpBrowserHost::OnTick+0x1b1 0f61f9e0 67a927c6 0064069c 00000402 00000000 npctrl!CXcpDispatcher::Tick+0xf3 0f61fa08 67a92709 0064069c 00000402 00000000 npctrl!CXcpDispatcher::OnReentrancyProtectedWindowMessage+0xcd 0f61fa28 764b6238 0064069c 00000402 00000000 npctrl!CXcpDispatcher::WindowProc+0xb8 0f61fa54 764b68ea 67a9269d 0064069c 00000402 user32!InternalCallWinProc+0x23 0f61facc 764b7d31 00000000 67a9269d 0064069c user32!UserCallWinProcCheckWow+0x109 0f61fb2c 764b7dfa 67a9269d 00000000 0f61fbb4 user32!DispatchMessageWorker+0x3bc 0f61fb3c 6fe504a6 0f61fb54 00000000 0ab11908 user32!DispatchMessageW+0xf 0f61fbb4 6fe60446 0af956a0 00000000 0b18a338 ieframe!CTabWindow::_TabWindowThreadProc+0x452 0f61fc6c 769d49bd 0ab11908 00000000 0f61fc88 ieframe!LCIETab_ThreadProc+0x2c1 0f61fc7c 76e53677 0b18a338 0f61fcc8 77829d72 iertutil!CIsoScope::RegisterThread+0xab 0f61fc88 77829d72 0b18a338 7dbc895d 00000000 kernel32!BaseThreadInitThunk+0xe 0f61fcc8 77829d45 769d49af 0b18a338 00000000 ntdll!__RtlUserThreadStart+0x70 0f61fce0 00000000 769d49af 0b18a338 00000000 ntdll!_RtlUserThreadStart+0x1b SYMBOL_STACK_INDEX: 1 SYMBOL_NAME: agcore!CFrameworkElement::SetValue+1d7 FOLLOWUP_NAME: MachineOwner MODULE_NAME: agcore IMAGE_NAME: agcore.dll DEBUG_FLR_IMAGE_TIMESTAMP: 4a67e422 STACK_COMMAND: ~44s; .ecxr ; kb FAILURE_BUCKET_ID: SOFTWARE_NX_FAULT_NULL_c0000005_agcore.dll!CFrameworkElement::SetValue BUCKET_ID: APPLICATION_FAULT_SOFTWARE_NX_FAULT_NULL_BAD_IP_agcore!CFrameworkElement::SetValue+1d7

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  • Accessing Oracle DB through SQL Server using OPENROWSET

    - by Ken Paul
    I'm trying to access a large Oracle database through SQL Server using OPENROWSET in client-side Javascript, and not having much luck. Here are the particulars: A SQL Server view that accesses the Oracle database using OPENROWSET works perfectly, so I know I have valid connection string parameters. However, the new requirement is for extremely dynamic Oracle queries that depend on client-side selections, and I haven't been able to get dynamic (or even parameterized) Oracle queries to work from SQL Server views or stored procedures. Client-side access to the SQL Server database works perfectly with dynamic and parameterized queries. I cannot count on clients having any Oracle client software. Therefore, access to the Oracle database has to be through the SQL Server database, using views, stored procedures, or dynamic queries using OPENROWSET. Because the SQL Server database is on a shared server, I'm not allowed to use globally-linked databases. My idea was to define a function that would take my own version of a parameterized Oracle query, make the parameter substitutions, wrap the query in an OPENROWSET, and execute it in SQL Server, returning the resulting recordset. Here's sample code: // db is a global variable containing an ADODB.Connection opened to the SQL Server DB // rs is a global variable containing an ADODB.Recordset . . . ss = "SELECT myfield FROM mytable WHERE {param0} ORDER BY myfield;"; OracleQuery(ss,["somefield='" + somevalue + "'"]); . . . function OracleQuery(sql,params) { var s = sql; var i; for (i = 0; i < params.length; i++) s = s.replace("{param" + i + "}",params[i]); var e = "SELECT * FROM OPENROWSET('MSDAORA','(connect-string-values)';" + "'user';'pass','" + s.split("'").join("''") + "') q"; try { rs.Open("EXEC ('" + e.split("'").join("''") + "')",db); } catch (eobj) { alert("SQL ERROR: " + eobj.description + "\nSQL: " + e); } } The SQL error that I'm getting is Ad hoc access to OLE DB provider 'MSDAORA' has been denied. You must access this provider through a linked server. which makes no sense to me. The Microsoft explanation for this error relates to a registry setting (DisallowAdhocAccess). This is set correctly on my PC, but surely this relates to the DB server and not the client PC, and I would expect that the setting there is correct since the view mentioned above works. One alternative that I've tried is to eliminate the enclosing EXEC in the Open statement: rs.Open(e,db); but this generates the same error. I also tried putting the OPENROWSET in a stored procedure. This works perfectly when executed from within SQL Server Management Studio, but fails with the same error message when the stored procedure is called from Javascript. Is what I'm trying to do possible? If so, can you recommend how to fix my code? Or is a completely different approach necessary? Any hints or related information will be welcome. Thanks in advance.

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  • optimizing iPhone OpenGL ES fill rate

    - by NateS
    I have an Open GL ES game on the iPhone. My framerate is pretty sucky, ~20fps. Using the Xcode OpenGL ES performance tool on an iPhone 3G, it shows: Renderer Utilization: 95% to 99% Tiler Utilization: ~27% I am drawing a lot of pretty large images with a lot of blending. If I reduce the number of images drawn, framerates go from ~20 to ~40, though the performance tool results stay about the same (renderer still maxed). I think I'm being limited by the fill rate of the iPhone 3G, but I'm not sure. My questions are: How can I determine with more granularity where the bottleneck is? That is my biggest problem, I just don't know what is taking all the time. If it is fillrate, is there anything I do to improve it besides just drawing less? I am using texture atlases. I have tried to minimize image binds, though it isn't always possible (drawing order, not everything fits on one 1024x1024 texture, etc). Every frame I do 10 image binds. This seem pretty reasonable, but I could be mistaken. I'm using vertex arrays and glDrawArrays. I don't really have a lot of geometry. I can try to be more precise if needed. Each image is 2 triangles and I try to batch things were possible, though often (maybe half the time) images are drawn with individual glDrawArrays calls. Besides the images, I have ~60 triangles worth of geometry being rendered in ~6 glDrawArrays calls. I often glTranslate before calling glDrawArrays. Would it improve the framerate to switch to VBOs? I don't think it is a huge amount of geometry, but maybe it is faster for other reasons? Are there certain things to watch out for that could reduce performance? Eg, should I avoid glTranslate, glColor4g, etc? I'm using glScissor in a 3 places per frame. Each use consists of 2 glScissor calls, one to set it up, and one to reset it to what it was. I don't know if there is much of a performance impact here. If I used PVRTC would it be able to render faster? Currently all my images are GL_RGBA. I don't have memory issues. Here is a rough idea of what I'm drawing, in this order: 1) Switch to perspective matrix. 2) Draw a full screen background image 3) Draw a full screen image with translucency (this one has a scrolling texture). 4) Draw a few sprites. 5) Switch to ortho matrix. 6) Draw a few sprites. 7) Switch to perspective matrix. 8) Draw sprites and some other textured geometry. 9) Switch to ortho matrix. 10) Draw a few sprites (eg, game HUD). Steps 1-6 draw a bunch of background stuff. 8 draws most of the game content. 10 draws the HUD. As you can see, there are many layers, some of them full screen and some of the sprites are pretty large (1/4 of the screen). The layers use translucency, so I have to draw them in back-to-front order. This is further complicated by needing to draw various layers in ortho and others in perspective. I will gladly provide additional information if reqested. Thanks in advance for any performance tips or general advice on my problem!

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