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• Runtime unhandled exception while executing facedetect.py in opencv

  - by Rupesh Chavan

  When i tried to execute facedetect.py python script from opencv sample example i got the following runtime exception. Can someone please give me some pointer or some clue about the exception and why it is encountering? Here is the stack trace : 'python.exe': Loaded 'C:\Python26\python.exe' 'python.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\python26.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\user32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\gdi32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\advapi32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\rpcrt4.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\shell32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\shlwapi.dll' 'python.exe': Loaded 'C:\WINDOWS\WinSxS \x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.30729.1_x-ww_6f74963e\msvcr90.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\imm32.dll' 'python.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2982_x-ww_ac3f9c03\comctl32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\comctl32.dll' 'python.exe': Loaded 'C:\Python26\Lib\site-packages\opencv_cv.pyd', Binary was not built with debug information. 'python.exe': Loaded 'C:\OpenCV2.0\bin\libcv200.dll', Binary was not built with debug information. 'python.exe': Loaded 'C:\OpenCV2.0\bin\libcxcore200.dll', Binary was not built with debug information. 'python.exe': Loaded 'C:\Python26\Lib\site-packages\opencv_ml.pyd', Binary was not built with debug information. 'python.exe': Loaded 'C:\OpenCV2.0\bin\libml200.dll', Binary was not built with debug information. 'python.exe': Loaded 'C:\Python26\Lib\site-packages\opencv_highgui.pyd', Binary was not built with debug information. 'python.exe': Loaded 'C:\OpenCV2.0\bin\libhighgui200.dll', Binary was not built with debug information. 'python.exe': Loaded 'C:\WINDOWS\system32\ole32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\oleaut32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\avicap32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\winmm.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\version.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\msvfw32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\avifil32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\msacm32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\msctf.dll' 'python.exe': Loaded 'C:\OpenCV2.0\bin\libopencv_ffmpeg200.dll', Binary was not built with debug information. 'python.exe': Loaded 'C:\WINDOWS\system32\wsock32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\ws2_32.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\ws2help.dll' 'python.exe': Loaded 'C:\WINDOWS\system32\MSCTFIME.IME' Unhandled exception at 0x00e7e4e4 in python.exe: 0xC0000005: Access violation reading location 0xffffffff. Thanks a lot in advance, Rupesh Chavan

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• B- trees, B+ trees difference

  - by dta

  In a B- tree you can store both keys and data in the internal/leaf nodes. But in a B+ tree you have to store the data in the leaf nodes only. Is there any advantage of doing the above in a B+ tree? Why not use B- trees instead of B+ trees everywhere? As intuitively they seem much faster. I mean why do you need to replicate the key(data) in a B+ tree?

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• YUI TreeView Selection destroyed on recreate.

  - by Nathaniel Flath

  I have a YUI Treeview that allows selection with checkboxes. After some operations, I destroy the tree (with tree.destroy()), and then create a new tree using the same containerID. This new tree should allow selection using checkboxes, but does not. What could be causing this?

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• Algorithm for bitwise fiddling

  - by EquinoX

  If I have a 32-bit binary number and I want to replace the lower 16-bit of the binary number with a 16-bit number that I have and keep the upper 16-bit of that number to produce a new binary number.. how can I do this using simple bitwise operator? For example the 32-bit binary number is: 1010 0000 1011 1111 0100 1000 1010 1001 and the lower 16-bit I have is: 0000 0000 0000 0001 so the result is: 1010 0000 1011 1111 0000 0000 0000 0001 how can I do this?

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• Ad-hoc retreival of data from SQL Server varbinary column

  - by Daniel Fortunov

  I would like to retreive some binary data from a varbinary(max) column in a SQL Server database for debugging purposes. What is the easiest way to get this data into a local binary file, preferably without having to write a throw-away console application? I have tried using SQL Server Management Studio but this returns a hex encoded binary string, rather than raw binary data (even with the "results to file" option).

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• Is it possible to create a C++ factory system that can create an instance of any "registered" object

  - by chrensli

  Hello, I've spent my entire day researching this topic, so it is with some scattered knowledge on the topic that i come to you with this inquiry. Please allow me to describe what I am attempting to accomplish, and maybe you can either suggest a solution to the immediate question, or another way to tackle the problem entirely. I am trying to mimic something related to how XAML files work in WPF, where you are essentially instantiating an object tree from an XML definition. If this is incorrect, please inform. This issue is otherwise unrelated to WPF, C#, or anything managed - I solely mention it because it is a similar concept.. So, I've created an XML parser class already, and generated a node tree based on ObjectNode objects. ObjectNode objects hold a string value called type, and they have an std::vector of child ObjectNode objects. The next step is to instantiate a tree of objects based on the data in the ObjectNode tree. This intermediate ObjectNode tree is needed because the same ObjectNode tree might be instantiated multiple times or delayed as needed. The tree of objects that is being created is such that the nodes in the tree are descendants of a common base class, which for now we can refer to as MyBase. Leaf nodes can be of any type, not necessarily derived from MyBase. To make this more challenging, I will not know what types of MyBase derived objects might be involved, so I need to allow for new types to be registered with the factory. I am aware of boost's factory. Their docs have an interesting little design paragraph on this page: o We may want a factory that takes some arguments that are forwarded to the constructor, o we will probably want to use smart pointers, o we may want several member functions to create different kinds of objects, o we might not necessarily need a polymorphic base class for the objects, o as we will see, we do not need a factory base class at all, o we might want to just call the constructor - without #new# to create an object on the stack, and o finally we might want to use customized memory management. I might not be understanding this all correctly, but that seems to state that what I'm trying to do can be accomplished with boost's factory. But all the examples I've located, seem to describe factories where all objects are derived from a base type. Any guidance on this would be greatly appreciated. Thanks for your time!

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• Passing around an ElementTree

  - by PulpFiction

  Hello. In my program, I need to make use of an ElementTree object in various functions in my program. More specifically, I am doing this: tree = etree.parse('somefile.xml') I am passing this tree around in my program. I was wondering whether this is a good approach, or can I do this: Create a global tree (I come from a C++ background and I know global is bad) Create the tree again wherever required. Or is my approach ok?

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• Linking Mapkit with Core Data, Search and user location. Converting annotations from a database in a tableview with search to display in a mapview?

  - by Jon

  Xcode is quite new to me so explanations are appreciated. I am looking to build an application that displays annotations in a mapview (zoomed in on current user location). I want the applications to come from some sort of database rather than manually inputting all the annotations (which is what I'm currently doing) What would be my application type? tab based? window based? i want a tab for a tableview with a list of my annotations and a mapview tab that will show my database of annotations but with the map zoomed in on current location. In a perfect world, it would be great if the user could add favourites from these annotations and keep them in a favourites tableview tab. I'm desperate to work this out and create a fully functional app for a final uni project. i have a working application already but it's nothing like what i am trying to achieve, any help would be much appreciated!!!! Jon (if looked through countless tutorials and as of yet found nothing i can understand to achieve a project like this. Some would call me too ambitious, I just want to make a decent app)

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• ASP.MVC 1.0 complex ViewModel not populating on Action

  - by Graham

  Hi, I'm 3 days into learning MVC for a new project and i've managed to stumble my way over the multitude of issues I've come across - mainly about something as simple as moving data to a view and back into the controller in a type-safe (and manageable) manner. This is the latest. I've seen this reported before but nothing advised has seemed to work. I have a complex view model: public class IndexViewModel : ApplicationViewModel { public SearchFragment Search { get; private set; } public IndexViewModel() { this.Search = new SearchFragment(); } } public class SearchFragment { public string ItemId { get; set; } public string Identifier { get; set; } } This maps to (the main Index page): %@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<IndexViewModel>" %> <asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server"> <% Html.BeginForm("Search", AvailableControllers.Search, FormMethod.Post); %> <div id="search"> <% Html.RenderPartial("SearchControl", Model.Search); %> </div> <% Html.EndForm(); %> </asp:Content> and a UserControl: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<SearchFragment>" %> <p> <label for="itemId"> <%= Html.Resource("ItemId") %></label> <%= Html.TextBox("itemId", Model.ItemId)%> </p> <p> <label for="title"> <%= Html.Resource("Title") %></label> <%= Html.TextBox("identifier", Model.Identifier)%> </p> <p> <input type="submit" value="<%= Html.Resource("Search") %>" name="search" /> </p> This is returned to the following method: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Search(IndexViewModel viewModel) { .... } My problem is that when the view model is rehydrated from the View into the ViewModel, the SearchFragment elements are null. I suspect this is because the default model binder doesn't realise the HTML ItemId and Identifier elements rendered inline in the View map to the SearchFragment class. When I have two extra properties (ItemId and Identifier) in the IndexViewModel, the values are bound correctly. Unfortunately, as far as I can tell, I must use the SearchFragment as I need this to strongly type the Search UserControl... as the control can be used anywhere it can operate under any parent view. I really don't want to make it use "magic strings". There's too much of that going on already IMO. I've tried prefixing the HTML with "Search." in the hope that the model binder would recognise "Search.ItemId" and match to the IndexViewModel "Search" property and the ItemId within it, but this doesn't work. I fear I'm going to have to write my own ModelBinder to do this, but surely this must be something you can do out-of-the-box?? Failing that is there any other suggestions (or link to someone who has already done this?) Here's hoping....

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• mac osx cannot connect to windows 7 machine

  - by Binary X

  I have a Mac OSX (Snow Leopard 10.6.6) setup on a network with several Windows 7 machines. When trying to place a large file on a Windows share the connection to the Windows share gets lost and I am unable to reconnect until I reboot the Mac. I know this is on the Windows side because the Mac can connect and transfer files to Server 2008 and XP without issue. Looking in the log file I see this message SharePointBrowser::handleOpenCallBack returned 12 I have tried restarting the com.apple.netauth.sysagent service but that did not resolve the situation. I can do an nslookup to the Windows 7 machine, but trying to ping the machine by hostname always gives a hostname lookup failure (I can ping via IP address). I cannot connect to the machine via IP adress either. Any help would be appreciated.

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• mod_mono 'Service Temporarily Unavailable' issue

  - by Charlie Somerville

  I've deployed an ASP.NET web application on a Linux (Debian) server running Apache 2.2 and mod_mono 1.9 It's working well, however Mono occasionally segfaults and uses the entire CPU which causes the website to stop working and display 'Service Temporarily Unavailable' Killing mono fixes it, but obviously this isn't a good solution. I tailed the system log after this happened and I saw the following error messages from the kernel: Apr 20 01:49:37 charliesomerville kernel: [1596436.204158] mono[17909]: segfault at b645f671 ip b645f671 sp b4ffb604 error 4<6>mono[19047]: segfault at b645f66e ip b645f66e sp b4bf7604 error 4<6>mono[18017]: segfault at b645f66e ip b645f66e sp b52fe604 error 4<6>mono[19668]: segfault at b645f5e6 ip b645f5e6 sp b48f4604 error 4<6>mono[22565]: segfault at b645f674 ip b645f674 sp b45f1604 error 4<6>mono[17700]: segfault at b645f661 ip b645f661 sp b51fd604 error 4<6>mono[19596]: segfault at b645f5e6 ip b645f5e6 sp b49f5604 error 4 Apr 20 01:49:37 charliesomerville kernel: [1596436.208172] mono[23219]: segfault at b645f66e ip b645f66e sp b44f0604 error 4 At the end of Apache's error.log are the following errors: [Tue Apr 20 03:10:23 2010] [error] (70014)End of file found: read_data failed [Tue Apr 20 03:10:23 2010] [error] Command stream corrupted, last command was 1 [Tue Apr 20 03:10:23 2010] [error] Command stream corrupted, last command was 1 [Tue Apr 20 03:10:23 2010] [error] Command stream corrupted, last command was 1 System.ArgumentNullException: null key Parameter name: key at System.Collections.Hashtable.get_Item (System.Object key) [0x00000] at System.Runtime.Serialization.SerializationCallbacks.GetSerializationCallbacks (System.Type t) [0x00000] at System.Runtime.Serialization.ObjectManager.RaiseOnDeserializingEvent (System.Object obj) [0x00000] at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectContent (System.IO.BinaryReader reader, System.Runtime.Serialization.Formatters.Binary.TypeMetadata metadata, Int64 objectId, System.Object& objectInstance, System.Runtime.Serialization.SerializationInfo& info) [0x00000] at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectInstance (System.IO.BinaryReader reader, Boolean isRuntimeObject, Boolean hasTypeInfo, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) [0x00000] at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject (BinaryElement element, System.IO.BinaryReader reader, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) [0x00000] at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject (System.IO.BinaryReader reader) [0x00000] at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph (System.IO.BinaryReader reader, Boolean readHeaders, System.Object& result, System.Runtime.Remoting.Messaging.Header[]& headers) [0x00000] at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000] at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream) [0x00000] at System.Runtime.Remoting.Channels.CADSerializer.DeserializeObject (System.IO.MemoryStream mem) [0x00000] at System.Runtime.Remoting.RemotingServices.GetDomainProxy (System.AppDomain domain) [0x00000] at System.AppDomain.CreateDomain (System.String friendlyName, System.Security.Policy.Evidence securityInfo, System.AppDomainSetup info) [0x00000] at System.Web.Hosting.ApplicationHost.CreateApplicationHost (System.Type hostType, System.String virtualDir, System.String physicalDir) [0x00000] at Mono.WebServer.VPathToHost.CreateHost (Mono.WebServer.ApplicationServer server, Mono.WebServer.WebSource webSource) [0x00000] at Mono.WebServer.ApplicationServer.GetApplicationForPath (System.String vhost, Int32 port, System.String path, Boolean defaultToRoot) [0x00000] at (wrapper remoting-invoke-with-check) Mono.WebServer.ApplicationServer:GetApplicationForPath (string,int,string,bool) at Mono.WebServer.ModMonoWorker.GetOrCreateApplication (System.String vhost, Int32 port, System.String filepath, System.String virt) [0x00000] at Mono.WebServer.ModMonoWorker.InnerRun (System.Object state) [0x00000] at Mono.WebServer.ModMonoWorker.Run (System.Object state) [0x00000] [Tue Apr 20 03:10:26 2010] [error] (70014)End of file found: read_data failed [Tue Apr 20 03:10:26 2010] [error] Command stream corrupted, last command was -1 Along with the above errors, Apache's error.log is packed with hundreds (if not thousands) of the following error: Maximum number (20) of concurrent mod_mono requests to /tmp/mod_mono_dashboard_default_2.lock reached. Droping request. At the moment, I'm thinking there might be something wrong with configuration here (it's basically running on out-of-the-box config)

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• Google: "302 Moved" in Firefox

  - by Virtlink

  For some Google search queries executed from the Firefox search bar, or manually by typing in the URL, I get a ''302 Moved'' page. I did a quick virus scan, have checked the hosts file and the plugins and add-ons that are installed in Firefox. Nothing is out of the ordinary. What could be the problem? These URLs (and any URL with google.com, empty and firefox-a in them) show me a 302 Moved page: https://www.google.com/search?q=c%23+empty+array&client=firefox-a https://www.google.com/search?q=empty&client=firefox-a Whereas these URLs work fine: https://www.google.com/search?q=c%23+empty+array (no firefox-a) https://www.google.com/search?q=empty (no firefox-a) https://www.google.com/search?q=c%23+array&client=firefox-a (no empty) https://www.google.nl/search?q=c%23+empty+array&client=firefox-a (no .com) By default Google redirects my queries to their .nl website, and uses HTTPS. I am currently executing a full system virus scan using Security Essentials. My Firefox plugins were up-to-date. No unfamiliar Firefox plugins or add-ons found. Restarting Firefox did not solve the issue. The issue does not occur in Internet Explorer. The hosts file did not contain any unfamiliar entries.

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• How can I merge the gnome clipboard and the X selection?

  - by TREE

  I'm constantly frustrated by the two separate clipboards in X/Gnome. I'm constantly doing things like control-C to copy, and then middle-click to paste, and getting the wrong data. Or select something, then go where I want to paste it, and selecting what I want to paste over, only to lose my first selection! Is there any way to merge these two clipboards?

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• SQL 2005: Backup database but ignore FTI Catalog

  - by Binary Worrier

  Folks, Apologies for aksing what might be a very simple question, but can I backup a database and ignore the databases FTI catalog? These backups will be restored to a different server and the FTI Catalog isn't necessarry. Thanks BW

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• How to set a low process priority for everything spawned from a command prompt in XP?

  - by Binary Worrier

  As a developer, once or twice a week I run a full build on my XP dev machine. This will run at 100% cpu for 30 or 40 minutes, making my machine usless for anything other than basic browsing & email. Is there anyway I can specify that for a given process (i.e. a command prompt) it and any process spawned by it will hae a lower priority, say taking up no more than 60 - 70% of CPU, leaving my machine more usable. I don't mind the build talking 30 or 40% longer, if I still have use of my machine while it's running. Thanks BW P.S. I'd love to be able to throw more hardware at the problem, but that isn't under my control.

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• Searching for just files

  - by M Schenkel

  I have a couple questions about searching for files on Windows 7. I find the XP method much easier than this new Windows 7 search. Note: I am only concerned about finding files matching a search term, not ALL files containing the search term. Is there a way to search just for files? When I use the search it seems to be searching "within" files and returning instances where the name of the file is used. Example: I have a whole web directory and want to find the javascript files. But if I enter "myjavascript.js" in the search, it also returns all the html files which reference the javascript file. This is both slow and difficult to actually find the reference to the file. Is there a way to search for an exact match? The search seems to implicitly use wildcards. For instance, say I have a bunch of files in a folder: file1.txt,file11.txt, file12.txt, file13.txt. If I enter "file1.txt" in the searcher it returns instances as if I were using a wild card file1*.txt I miss XP!!!!

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• How to add an item to my "Send To" context menu

  - by Binary Worrier

  On my old XP machine I would simply copy short-cuts into the %userprofile%\SendTo folder. On Windows-7 this folder is hidden, and I don't have access to it (which surprised me, it is MY SendTo folder after all). Is there an "approved" way of adding to my Send To menu that I'm unaware of? Or do I need extra permissions from our Sys Admin? Thanks BW

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• How to show the Connection Bar in a remote desktop session?

  - by Binary Worrier

  What is the keyboard shortcut to show the connection bar on an existing Remote Desktop session when the connection bar is hidden? Thanks

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• How do I create a simple seach box with a submit button to bring back a result set in MVC?

  - by RJ

  I am very new to MVC and just learning the basics. I have been following along in Nerd Dinner and used the demo as a way to create my own app. I have created a page that lists out some food items with calories, fat, protein,etc... (http://rjsfitness.net/CalorieList) This is one of my own personal sites that I set up to test out MVC. I got a lot of it working but I am stuck on the textbox with a search button. My view page has this code for the search: <form action="/CalorieList/Search" method="post" id="searchForm"> <input type="text" name="searchTerm" id="searchTerm" value="" size="10" maxlength ="30" /> <input type ="submit" value="Search" /> </form> My global.asax has this code for the routing: routes.MapRoute( "Search", // Route name "CalorieList/Search/{searchTerm}", // URL with parameters new { controller = "CalorieList", action = "Search", search = "" } // Parameter defaults ); My Controller has this code: public ActionResult Index(int? page) { const int pageSize = 10; //load a list with the calorie list var calorieLists = calorieListRepository.GetAllCalorieLists(); //var paginatedCalorieLists = calorieLists.Skip((page ?? 0) * pageSize).Take(pageSize).ToList(); var paginatedCalorieLists = new PaginatedList<CalorieList>(calorieLists, page ?? 0, pageSize); return View("Index", paginatedCalorieLists); } public ActionResult Search(String searchTerm) { const int pageSize = 100; int? page = 0; var calorieLists = calorieListRepository.GetCalorieListsBySearch(searchTerm); var paginatedCalorieLists = new PaginatedList<CalorieList>(calorieLists, page ?? 0, pageSize); return View("Index", paginatedCalorieLists); } return View("Index", paginatedCalorieLists); } When I enter a value and click the button, the Index method fires instead of the Seach method in the controller and I get the full list again. If I manually type the url (http://rjsfitness.net/CalorieList/Search/choc) I get the right listing. Why isn't my button click using the right routing and giving me the search results?

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• Archiving SQLHelp tweets

  - by jamiet

  #SQLHelp is a Twitter hashtag that can be used by any Twitter user to get help from the SQL Server community. I think its fair to say that in its first year of being it has proved to be a very useful resource however Kendra Little (@kendra_little) made a very salient point yesterday when she tweeted: Is there a way to search the archives of #sqlhelp Trying to remember answer to a question I know I saw a couple months ago http://twitter.com/#!/Kendra_Little/status/15538234184441856 This highlights an inherent problem with Twitter’s search capability – it simply does not reach far enough back in time. I have made steps to remedy that situation by putting into place two initiatives to archive Tweets that contain the #sqlhelp hashtag. The Archivist http://archivist.visitmix.com/ is a free service that, quite simply, archives a history of tweets that contain a given search term by periodically polling Twitter’s search service with that search term and subsequently displaying a dashboard providing an aggregate view of those tweets for things like tweet volume over time, top users and top words (Archivist FAQ). I have set up an archive on The Archivist for “sqlhelp” which you can view at http://archivist.visitmix.com/jamiet/7. Here is a screenshot of the SQLHelp dashboard 36 minutes after I set it up: There is lots of good information in there, including the fact that Jonathan Kehayias (@SQLSarg) is the most active SQLHelp tweeter (I suspect as an answerer rather than a questioner ) and that SSIS has proven to be a rather (ahem) popular subject!! Datasift The Archivist has its uses though for our purposes it has a couple of downsides. For starters you cannot search through an archive (which is what Kendra was after) and nor can you export the contents of the archive for offline analysis. For those functions we need something a bit more heavyweight and for that I present to you Datasift. Datasift is a tool (currently an alpha release) that allows you to search for tweets and provide them through an object called a Datasift stream. That sounds very similar to normal Twitter search though it has one distinct advantage that other Twitter search tools do not – Datasift has access to Twitter’s Streaming API (aka the Twitter Firehose). In addition it has access to a lot of other rather nice features: It provides the Datasift API that allows you to consume the output of a Datasift stream in your tool of choice (bring on my favourite ultimate mashup tool J ) It has a query language (called Filtered Stream Definition Language – FSDL for short) A Datasift stream can consume (and filter) other Datasift streams Datasift can (and does) consume services other than Twitter If I refer to Datasift as “ETL for tweets” then you may get some sort of idea what it is all about. Just as I did with The Archivist I have set up a publicly available Datasift stream for “sqlhelp” at http://datasift.net/stream/1581/sqlhelp. Here is the FSDL query that provides the data: twitter.text contains "sqlhelp" Pretty simple eh? At the current time it provides little more than a rudimentary dashboard but as Datasift is currently an alpha release I think this may be worth keeping an eye on. The real value though is the ability to consume the output of a stream via Datasift’s RESTful API, observe: http://api.datasift.net/stream.xml?stream_identifier=c7015255f07e982afdeebdf1ae6e3c0d&username=jamiet&api_key=XXXXXXX (Note that an api_key is required during the alpha period so, given that I’m not supplying my api_key, this URI will not work for you) Just to prove that a Datasift stream can indeed consume data from another stream I have set up a second stream that further filters the first one for tweets containing “SSIS”. That one is at http://datasift.net/stream/1586/ssis-sqlhelp and here is the FSDL query: rule "414c9845685ff8d2548999cf3162e897" and (interaction.content contains "ssis") When Datasift moves beyond alpha I’ll re-assess how useful this is going to be and post a follow-up blog. @Jamiet

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• Tips &amp; Tricks: How to crawl a SSL enabled Oracle E-Business Suite

  - by Rajesh Ghosh

  Oracle E-Business Suite can be integrated with Oracle Secure Enterprise Search for a superior end user experience and enhanced data retrieval capabilities. Before end-users can perform search operations, data has to be crawled and indexed into Oracle SES server. However if the Oracle E-Business Suite instance is on SSL, some additional configurations are needed in Oracle SES server as well as in Oracle Search Modeler, before a search object can be deployed and crawled. The process involves the following steps: Step 1: Export the SSL certificate of Oracle E-Business Suite Access the Oracle E-business Suite instance from a web browser. You should be able to locate a security or certificate icon somewhere in the browser toolbar or status bar, depending on which browser you are using. Click on it and you should be able to view the certificate as well as export it to a local file. While exporting make sure that you use “DER encoded” format. Step 2: Import the SSL certificate into Oracle Secure Enterprise server’s java key-store Oracle SES (10.1.8.4) by default ships a JDK under $ORACLE_HOME. The Oracle SES mid-tier uses this jdk to start the oc4j container services. In this step the Oracle E-Business Suite’s SSL certificate which has been exported in step #1, has to be imported into the Oracle SES server’s java key store. Perform the following: Copy the certificate file onto the server where Oracle SES server is running; under $ORACLE_HOME/jdk/jre/lib/security/cacerts. “ORACLE_HOME” points to the Oracle SES oracle home. Set the JAVA_HOME environment variable to $ORACLE_HOME/jdk. Append $JAVA_HOME/bin to the PATH environment variable Issue the command :  “keytool -import -keystore keystore.jks -trustcacerts -alias myOHS –file ebs.crt” . Please substitute “ebs.crt” with the name of the certificate file you copied in step #2.1. The default key-store password “changeit”. Enter the same when prompted. If successful this process will end with a message saying “certificate successfully imported”. Step 3: Import the SSL certificate into Search Modeler java key-store Unlike Oracle SES, Search Modeler is not shipped with a bundled JDK. If you are using standalone OC4J, then you actually use an external JDK to start the oc4j container services. If you are using IAS instance then the JDK comes bundled with the IAS installation. Perform the following: Copy the certificate file onto the server where Search Modeler application is running; under $JDK_HOME/jre/lib/security/cacerts. “JDK_HOME” points to the JDK directory depending on whether you are using external JDK or a bundled one. Set the JAVA_HOME environment variable to JDK directory. Append $JAVA_HOME/bin to the PATH environment variable Issue the command :  “keytool -import -keystore keystore.jks -trustcacerts -alias myOHS –file ebs.crt” . Please substitute “ebs.crt” with the name of the certificate file you copied in step #3.1. The default key-store password “changeit”. Enter the same when prompted. If successful this process will end with a message saying “certificate successfully imported”. Once you have completed the above steps successfully, you can deploy the search objects using Search Modeler and then start crawling them as well.

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• Find Knowledge Quickly

  - by Get Proactive Customer Adoption Team

  Untitled Document Get to relevant knowledge on the Oracle products you use in a few quick steps! Customers tell us that the volume of search results returned can make it difficult to find the information they need, especially when similar Oracle products exist. These simple tips show you how to filter, browse, search, and refine your results to get relevant answers faster. Filter first: PowerView is your best friend Powerview is an often ignored feature of My Oracle Support that enables you to control the information displayed on the Dashboard, the Knowledge tab and regions, and the Service Request tab based on one or more parameters. You can define a PowerView to limit information based on product, product line, support ID, platform, hostname, system name and others. Using PowerView allows you to restrict: Your search results to the filters you have set The product list when selecting your products in Search & Browse and when creating service requests   The PowerView menu is at the top of My Oracle Support, near the title You turn PowerView on by clicking PowerView is Off, which is a button. When PowerView is On, and filters are active, clicking the button again will toggle Powerview off. Click the arrow to the right to create new filters, edit filters, remove a filter, or choose from the list of previously created filters. You can create a PowerView in 3 simple steps! Turn PowerView on and select New from the PowerView menu. Select your filter from the Select Filter Type dropdown list and make selections from the other two menus. Hint: While there are many filter options, selecting your product line or your list of products will provide you with an effective filter. Click the plus sign (+) to add more filters. Click the minus sign (-) to remove a filter. Click Create to save and activated the filter(s) You’ll notice that PowerView is On displays along with the active filters. For more information about the PowerView capabilities, click the Learn more about PowerView… menu item or view a short video. Browse & Refine: Access the Best Match Fast For Your Product and Task In the Knowledge Browse region of the Knowledge or Dashboard tabs, pick your product, pick your task, select a version, if applicable. A best match document – a collection of knowledge articles and resources specific to your selections - may display, offering you a one-stop shop. The best match document, called an “information center,” is an aggregate of dynamically updated links to information pertinent to the product, task, and version (if applicable) you chose. These documents are refreshed every 24 hours to ensure that you have the most current information at your fingertips. Note: Not all products have “information centers.” If no information center appears as a best match, click Search to see a list of search results. From the information center, you can access topics from a product overview to security information, as shown in the left menu. Just want to search? That’s easy too! Again, pick your product, pick your task, select a version, if applicable, enter a keyword term, and click Search. Hint: In this example, you’ll notice that PowerView is on and set to PeopleSoft Enterprise. When PowerView is on and you select a product from the Knowledge Base product list, the listed products are limited to the active PowerView filter. (Products you’ve previously picked are also listed at the top of the dropdown list.) Your search results are displayed based on the parameters you entered. It’s that simple! Related Information: My Oracle Support - User Resource Center [ID 873313.1] My Oracle Support Community For more tips on using My Oracle Support, check out these short video training modules. My Oracle Support Speed Video Training [ID 603505.1]

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• Extra fulltext ordering criteria beyond default relevance

  - by Jeremy Warne

  I'm implementing an ingredient text search, for adding ingredients to a recipe. I've currently got a full text index on the ingredient name, which is stored in a single text field, like so: "Sauce, tomato, lite, Heinz" I've found that because there are a lot of ingredients with very similar names in the database, simply sorting by relevance doesn't work that well a lot of the time. So, I've found myself sorting by a bunch of my own rules of thumb, which probably duplicates a lot of the full-text search algorithm which spits out a numerical relevance. For instance (abridged): ORDER BY [ingredient name is exactly search term], [ingredient name starts with search term], [ingredient name starts with any word from the search and contains all search terms in some order], [ingredient name contains all search terms in some order], ...and so on. Each of these is defined in the SELECT specification as an expression returning either 1 or 0, and so I order by those in sequential order. I would love to hear suggestions for: A better way to define complicated order-by criteria in one place, say perhaps in a view or stored procedure that you can pass just the search term to and get back a set of results without having to worry about how they're ordered? A better tool for this than MySQL's fulltext engine -- perhaps if I was using Sphinx or something [which I've heard of but not used before], would I find some sort of complicated config option designed to solve problems like this? Some google search terms which might turn up discussion on how to order text items within a specific domain like this? I haven't found much that's of use. Thanks for reading!

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• jsf submit button not wrking

  - by tejas-a

  I am using hx:commandExButton of IBM Faces Client Framework to call my method. But the method is not getting called. But if I use immediate="true" it's getting called. But as you all know with this my model won't get updated, so it has no use to me. Has anyone faced this? Check the hx:commandExButton id="btnSearch" <%-- tpl:metadata --%> <%-- jsf:pagecode language="java" location="/src/pagecode/view/costestimation/SearchAssignee.java" --%><%-- /jsf:pagecode --%> <%-- /tpl:metadata --%> <%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%><%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%><%@taglib uri="http://www.ibm.com/jsf/html_extended" prefix="hx"%><%@taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%><%@taglib uri="http://www.ibm.com/xmlns/prod/websphere/portal/v6.1/portlet-client-model" prefix="portlet-client-model"%><%@page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%><portlet-client-model:init> <portlet-client-model:require module="ibm.portal.xml.*" /> <portlet-client-model:require module="ibm.portal.portlet.*" /> </portlet-client-model:init> <portlet:defineObjects /> <link rel="stylesheet" type="text/css" title="Style" href="../../theme/stylesheet.css"> <f:view> <f:loadBundle var="giamsBundle" basename="com.ibm.costprojectionportlet.nl.GIAMSResourceBundle" /> <hx:viewFragment id="viewFragment1"> <hx:scriptCollector id="scriptCollector1"> <script language="JavaScript" src='<%=renderResponse.encodeURL(renderRequest .getContextPath() + "/js/common.js")%>'></script> <h:outputText value="<br/>" escape="false" /> <h:outputText id="titleSearch" styleClass="outputText" value="#{giamsBundle['title.search']}" escape="false"></h:outputText> <h:outputText value="<br/>" escape="false" /> <h:messages style="font-weight:bold;color:red;" layout="table"></h:messages> <hx:panelSection styleClass="panelSection" title="SearchCriteria" id="searchCriteriaPanel" initClosed="false" style="border-width: thin; border-style: groove"> <h:form styleClass="form" id="searchCriteriaForm"> <h:messages style="font-weight:bold;color:red;" layout="table"></h:messages> <h:panelGrid columns="2" cellpadding="1" border="0" width="100%"> <h:column> <hx:panelFormBox helpPosition="over" labelPosition="left" styleClass="panelFormBox" id="formBoxLeft"> <hx:formItem styleClass="formItem" id="frmLastName" label="#{giamsBundle['lbl.search.lastname']}" escape="false"> <h:inputText styleClass="inputText" size="20" id="txtLastName" value="#{pc_SearchAssignee.assignee.lastName}"> </h:inputText> </hx:formItem> <hx:formItem styleClass="formItem" id="frmHomeCountrySerial" label="#{giamsBundle['lbl.search.homecountryserial']}" escape="false"> <h:inputText styleClass="inputText" size="20" id="txtHomeCountrySerial" value="#{pc_SearchAssignee.assignee.companyDetails.homeCountrySerial}"> </h:inputText> </hx:formItem> <hx:formItem styleClass="formItem" id="frmHomeCountry" label="#{giamsBundle['lbl.search.homecountry']}" escape="false"> <h:selectOneMenu styleClass="selectOneMenu" id="ddHomeCountry" value=""> <f:selectItems value="#{pc_referenceData.telephoneTypeList}" /> </h:selectOneMenu> </hx:formItem> <hx:formItem styleClass="formItem" id="frmHomeBusinessUnit" label="#{giamsBundle['lbl.search.homebusunit']}" escape="false"> <h:selectOneMenu styleClass="selectOneMenu" value="" id="ddHomeBusinessUnit"> <f:selectItems value="#{pc_referenceData.telephoneTypeList}" /> </h:selectOneMenu> </hx:formItem> <hx:formItem styleClass="formItem" id="frmforButtons" label="" escape="false"> <h:panelGroup> <hx:commandExButton styleClass="commandExButton" id="btnSearch" value="#{giamsBundle['btn.search']}" action="#{pc_SearchAssignee.searchAssignee}"> </hx:commandExButton> <hx:commandExButton styleClass="commandExButton" id="btnCancel" value="#{giamsBundle['btn.cancel']}" action="#{pc_SearchAssignee.searchAssignee}"> </hx:commandExButton> </h:panelGroup> </hx:formItem> </hx:panelFormBox> </h:column> <h:column> <hx:panelFormBox helpPosition="over" labelPosition="left" styleClass="panelFormBox" id="formBoxRight"> <hx:formItem styleClass="formItem" id="frmFirstName" label="#{giamsBundle['lbl.search.firstname']}" escape="false"> <h:inputText styleClass="inputText" size="20" id="txtFirstName" value="#{pc_SearchAssignee.assignee.firstName}"> </h:inputText> </hx:formItem> <hx:formItem styleClass="formItem" id="frmHomeNotesEmail" label="#{giamsBundle['lbl.search.homenotesemail']}" escape="false"> <h:panelGroup> <h:inputText styleClass="inputText" size="20" id="txtHomeNotesEmail" value="#{pc_SearchAssignee.assignee.lotusNotesId}"> </h:inputText> </h:panelGroup> </hx:formItem> <hx:formItem styleClass="formItem" id="frmHomeLocation" label="#{giamsBundle['lbl.search.homeloc']}" escape="false"> <h:inputText styleClass="inputText" size="20" id="txtHomeLocation" value="#{pc_SearchAssignee.assignee.homeAddress.cityName}"> </h:inputText> </hx:formItem> <hx:formItem styleClass="formItem" id="blank" label="" escape="false"> <h:outputText id="txtblank" escape="false"></h:outputText> </hx:formItem> </hx:panelFormBox> </h:column> </h:panelGrid> </h:form> <f:facet name="opened"> <hx:jspPanel id="jspPanelMainOpen"> <hx:graphicImageEx id="imageExMainOpen" styleClass="graphicImageEx" align="middle" value="/theme/img/form_header.GIF" width="100%" height="20"></hx:graphicImageEx> </hx:jspPanel> </f:facet> </hx:panelSection> <h:outputText id="titleResults" styleClass="outputText" value="#{giamsBundle['lbl.search.results']}" escape="false"></h:outputText> <h:outputText value="<br/>" escape="false" /> <hx:dataTableEx border="0" cellspacing="2" width="100%" columnClasses="columnClass1" headerClass="headerClass" footerClass="footerClass" rowClasses="rowClass1, rowClass2" styleClass="dataTableEx" id="searchAssignee" value="#{pc_SearchAssignee.assigneeList}" var="searchitr" binding="#{pc_SearchAssignee.searchDataTable}" rendered="#{pc_SearchAssignee.render}"> <hx:columnEx id="columnEx1"> <f:facet name="header"> <hx:panelBox styleClass="panelBox" id="selectPanelBox"> <hx:outputSelecticons styleClass="outputSelecticons" id="selectCheckBox"></hx:outputSelecticons> </hx:panelBox> </f:facet> <hx:inputRowSelect styleClass="inputRowSelect" value="#{searchitr.selected}" id="rowSelect"></hx:inputRowSelect> <f:facet name="header"></f:facet> </hx:columnEx> <hx:columnEx id="columnEx2"> <f:facet name="header"> <h:outputText id="lblEeId" styleClass="outputText" value="#{giamsBundle['lbl.search.eeid']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtEEID" value="#{searchitr.employeeID}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx3"> <f:facet name="header"> <h:outputText id="lblFirstName" styleClass="outputText" value="#{giamsBundle['lbl.search.firstname']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtFirstName" value="#{searchitr.firstName}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx4"> <f:facet name="header"> <h:outputText id="lblLastName" styleClass="outputText" value="#{giamsBundle['lbl.search.lastname']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtLastName" value="#{searchitr.lastName}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx5"> <f:facet name="header"> <h:outputText id="lblHomeNotesEmail" styleClass="outputText" value="#{giamsBundle['lbl.search.homenotesemail']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtHomeNotesEmail" value="#{searchitr.homeAddress.addressLine1}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx6"> <f:facet name="header"> <h:outputText id="lblHomeCountry" styleClass="outputText" value="#{giamsBundle['lbl.search.homecountry']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtHomeCountry" value="#{searchitr.homeAddress.addressLine1}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx7"> <f:facet name="header"> <h:outputText id="lblHomeLocation" styleClass="outputText" value="#{giamsBundle['lbl.search.homeloc']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtHomeLocation" value="#{searchitr.homeTaxID}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx8"> <f:facet name="header"> <h:outputText id="lblHomeBusUnit" styleClass="outputText" value="#{giamsBundle['lbl.search.homebusunit']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtHomeBusUnit" value="#{searchitr.homeTaxID}"></h:inputText> </hx:columnEx> <hx:columnEx id="columnEx9"> <f:facet name="header"> <h:outputText id="lblAssignStatus" styleClass="outputText" value="#{giamsBundle['lbl.search.assignmentstatus']}"></h:outputText> </f:facet> <h:inputText styleClass="inputText" id="dttxtAssignStatus" value="#{searchitr.homeTaxID}"></h:inputText> </hx:columnEx> </hx:dataTableEx> <h:outputText value="<br/>" escape="false" /> <hx:commandExButton type="submit" styleClass="commandExButton" rendered="#{pc_SearchAssignee.render}" id="btnContinue" value="#{giamsBundle['btn.continue']}" action="#{pc_SearchAssignee.searchAssignee}"> </hx:commandExButton> </hx:scriptCollector> </hx:viewFragment> </f:view>

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• Search dir using wildcard string, return filename, and loop.

  - by Charlie Murphy

  Hello all, I'm having some problems, and looking for some help. I'm trying to create a photo gallery in javascript, that will be able to 'update' it's self automatically. I need to be able to search a directory, and grab a file with a specific prefix. I need to output the followng HTML code: <li><a href="images/resize_FILENAME.ext"><img src="images/thumb_FILENAME.ext"></a></li> The 'resize_' and 'thumb_' use a timestamp to identify, so they have the same ending, just a different prefix. So, for example, if I search the directory for an image with a prefix of 'resize_', I need to insert that into the a tag, and then remove the '_resize' prefix, and add the '_thumb' prefix for the img tag. I then need to be able to do that for each image in the directory. Any help would be greatly appreciated. Oh, I should add: I'm assuming php would be easiest for this, but if an alternative exists that would work too. I'm also using jQuery if javascript would be better.

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