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  • Apache HttpClient 4.0. Weird behavior.

    - by Mikhail T
    Hello. I'm using Apache HttpClient 4.0 for my web crawler. The behavior i found strange is: i'm trying to get page via HTTP GET method and getting response about 404 HTTP error. But if i try to get that page using browser it's done successfully. Details: 1. I upload multipart form to server this way: HttpPost httpPost = new HttpPost("http://[host here]/in.php"); MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); entity.addPart("method", new StringBody("post")); entity.addPart("key", new StringBody("223fwe0923fjf23")); FileBody fileBody = new FileBody(new File("photo.jpg"), "image/jpeg"); entity.addPart("file", fileBody); httpPost.setEntity(entity); HttpResponse response = httpClient.execute(httpPost); HttpEntity result = response.getEntity(); String responseString = ""; if (result != null) { InputStream inputStream = result.getContent(); byte[] buffer = new byte[1024]; while(inputStream.read(buffer) > 0) responseString += new String(buffer); result.consumeContent(); } Uppload succefully ends. I'm getting some results from web server: HttpGet httpGet = new HttpGet("http://[host here]/res.php?key="+myKey+"&action=get&id="+id); HttpResponse response = httpClient.execute(httpGet); HttpEntity entity = response.getEntity(); I'm getting ClientProtocolException while execute method run. I was debugging this situation with log4j. Server answers "404 Not Found". But my browser loads me that page with no problem. Can anybody help me? Thank you.

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  • Dealing with expired session for a partially filled form?

    - by aaronls
    I have a large webform, and would like to prompt the user to login if their session expires, or have them login when they submit the form. It seems that having them login when they submit the form creates alot of challenges because they get redirected to the login page and then the postback data for the original form submission is lost. So I'm thinking about how to prompt them to login asynchrounsly when the session expires. So that they stay on the original form page, have a panel appear telling them the session has expired and they need to login, it submits the login asynchronously, the login panel disapears, and the user is still on the original partially filled form and can submit it. Is this easily doable using the existing ASP.NET Membership controls? When they submit the form will I need to worry about the session key? I mean, I am wondering if the session key the form submits will be the original one from before the session expired which won't match the new one generated after logging in again asynchrounously(I still do not understand the details of how ASP.NET tracks authentication/session IDs). Edit: Yes I am actually concerned about authentication expiration. The user must be authenticated for the submitted data to be considered valid.

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  • Why is processing a sorted array faster than an unsorted array?

    - by GManNickG
    Here is a piece of code that shows some very peculiar performance. For some strange reason, sorting the data miraculously speeds up the code by almost 6x: #include <algorithm> #include <ctime> #include <iostream> int main() { // generate data const unsigned arraySize = 32768; int data[arraySize]; for (unsigned c = 0; c < arraySize; ++c) data[c] = std::rand() % 256; // !!! with this, the next loop runs faster std::sort(data, data + arraySize); // test clock_t start = clock(); long long sum = 0; for (unsigned i = 0; i < 100000; ++i) { // primary loop for (unsigned c = 0; c < arraySize; ++c) { if (data[c] >= 128) sum += data[c]; } } double elapsedTime = static_cast<double>(clock() - start) / CLOCKS_PER_SEC; std::cout << elapsedTime << std::endl; std::cout << "sum = " << sum << std::endl; } Without std::sort(data, data + arraySize);, the code runs in 11.54 seconds. With the sorted data, the code runs in 1.93 seconds. Initially I thought this might be just a language or compiler anomaly. So I tried it Java... import java.util.Arrays; import java.util.Random; public class Main { public static void main(String[] args) { // generate data int arraySize = 32768; int data[] = new int[arraySize]; Random rnd = new Random(0); for (int c = 0; c < arraySize; ++c) data[c] = rnd.nextInt() % 256; // !!! with this, the next loop runs faster Arrays.sort(data); // test long start = System.nanoTime(); long sum = 0; for (int i = 0; i < 100000; ++i) { // primary loop for (int c = 0; c < arraySize; ++c) { if (data[c] >= 128) sum += data[c]; } } System.out.println((System.nanoTime() - start) / 1000000000.0); System.out.println("sum = " + sum); } } with a similar but less extreme result. My first thought was that sorting brings the data into cache, but my next thought was how silly that is because the array was just generated. What is going on? Why is a sorted array faster than an unsorted array? The code is summing up some independent terms, the order should not matter.

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  • How do I leverage the power of my desktop from my laptop?

    - by TheDeeno
    I have a powerful desktop, and a decent laptop. My laptop is my primary machine. When I'm home, I'd like to "tap into" the power of my desktop while using my laptop. I'm not thinking a solution like "remoting in" and actually using my desktop from my laptop. I mean sending work to the desktop when my laptop is taxed in a seamless way. Is this possible at all? How would I do it? I'll do whatever is necessary to my desktop to enable this if it's feasible. My laptop has Vista installed.

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  • How can I control the height of a ListView in WPF, using a complex DataTemplate with DataTriggers?

    - by Rob Perkins
    I have a ListView element with a DataTemplate for each ListViewItem defined as follows. When run, the ListView's height is not collapsed onto the items in the view, which is undesirable behavior: <DataTemplate x:Key="LicenseItemTemplate"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="{Binding company}"></TextBlock> <Grid Grid.Row="1" Style="{StaticResource HiddenWhenNotSelectedStyle}"> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <Button Grid.Row="0">ClickIt</Button> </Grid> </Grid> </DataTemplate> The second row of the outer grid has a style applied which looks like this. The purpose of the style is to : <Style TargetType="{x:Type Grid}" x:Key="HiddenWhenNotSelectedStyle" > <Style.Triggers> <DataTrigger Binding="{Binding Path=IsSelected, RelativeSource={ RelativeSource Mode=FindAncestor, AncestorType={x:Type ListBoxItem} } }" Value="False"> <Setter Property="Grid.Visibility" Value="Collapsed" /> </DataTrigger> <DataTrigger Binding="{Binding Path=IsSelected, RelativeSource={ RelativeSource Mode=FindAncestor, AncestorType={x:Type ListBoxItem} } }" Value="True"> <Setter Property="Grid.Visibility" Value="Visible" /> </DataTrigger> </Style.Triggers> </Style> The ListView renders like this: The desired appearance is this, when none of the elements are selected: ...with, of course, the ListView's height adjusting to accommodate the additional content when the second grid is made visible by selection. What can I do to get the desired behavior?

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  • Increment non unique field during SQL insert

    - by phill
    I'm not sure how to word this cause I am a little confused at the moment, so bare with me while I attempt to explain, I have a table with the following fields: OrderLineID, OrderID, OrderLine, and a few other unimportant ones. OrderLineID is the primary key and is always unique(which isn't a problem), OrderID is a foreign key that isn't unique(also not a problem), and OrderLine is a value that is not unique in the table, but should be unique for any OrderIDs that are the same...so if that didn't make sense, perhaps a picture OrderLineID, OrderID, OrderLine 1 1 1 2 1 2 3 1 3 4 2 1 5 2 2 For all OrderIDs there is a unique OrderLine. I am trying to create an insert statement that gets the max OrderLine value for a specific OrderId so I can increment it, but it's not working so well and I could use a little help. What I have right now is below, I build the sql statement in a program and replace OrderID # with an actual value. I am pretty sure the problem is with the nested select statement, and incrementing the result, but I can't find any examples that do this since my google skills are weak apparently.... INSERT INTO tblOrderLine (OrderID, OrderLine) VALUES (<OrderID #>, (SELECT MAX(OrderLine) FROM tblOrderLine WHERE orderID = <same OrderID #>)+1) any help would be nice.

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  • Error when adding to the domain : the specified server cannot perform the requested operation

    - by James
    When we add computers to the domain in Windows 7, we get the error: Changing the Primary Domain DNS name of this computer to "" failed. The name will remain "domain.com". The error was: The specified server cannot perform the requested operation. This happens on multiple computers and retrying yields the same result. Despite the error, the computer is still able to login to the domain ok. The DCs are windows 2003. Has anyone found a way to get rid of this error? Any help is appreciated.

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  • Intel RAID0 on Windows 8 not Displaying Correct Media Type

    - by kobaltz
    I have my primary C Drive which consists of 2 Intel 120GB SSD Drives in a RAID0. I have a clean install of Windows 8 Pro, latest MEI software, latest RST software, latest Intel Toolbox. Prior to this I had installed Windows 8 Pro as an upgrade. When I went into the Optimize Drives while in the Upgrade installation, it showed the Media Types as Solid State Drives. However, now since I am in a brand new install, it is showing the Media Type as Hard Disk Drive. I am worried about this because of the trim not working properly. Before when in the upgrade, it showed SSD as the media type and the Optimize option would perform a manual trim. Unfortunately, my search credentials on Google are so common to many other things (ie Raid0, SSD, Windows 8, Media Type) that all I am finding are useless topics. Before, (found on random site) it showed the Media Type as below

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  • Spanned volumes on new install

    - by Noio
    My Windows 7 Release Candidate is about to expire, so I'm going to do a clean install of a retail version. I have two volumes, on four physical drives, as follows: Disk 0: Spanned Volume (D:) Disk 1: Primary Partition, Boot/Windows Install (C:) Disk 2: Spanned Volume (D:) Disk 3: Spanned Volume (D:) If I install Windows to a formatted drive 1, will it still recognize the spanned volume in Disks 0, 2, and 3? The spanned volume is not redundant in any way, so the volume is 1.5TB consisting of three 500GB disks. I don't have the space to do an external backup, and I thought it was impossible to convert a spanned volume back to a basic volume.

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  • Is there a way to insert a formatted calculation into Excel 2010 without using an image?

    - by Ryan Taylor
    I am maintaining a list of database column names, notes, and their calculations in an Excel 2010 spreadsheet. The calculations are included so as to document how to derive the values for the various columns and not for calculations within the spreadsheet. I have been entering the calculations into the cells simply as unformatted text like so: 100 - ((FiscalYearRegionConsumption - BaselineRegionConsumption) / (GoalRegionConsumption - BaselineRegionConsumption)) * 100 However, for long and/or complex calculations this could become rather unreadable. To improve readability and comprehension I would like to "pretty" print the calculation in an Excel cell. This would result in formatting that would like like this: The only solution I have come up with is to: Write the calculation in another application such as Word Take a screenshot of said calculation Past the screenshot into Excel The primary concern with this approach is maintenance. Should the calculation change or need correction I have to update two different sources of information. Is there a better way included a formatted calculation into an Excel cell?

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  • Append json data to html class name

    - by user2898514
    I have a problem with my json code. I want to append each json value comes from a key to be appended to an html class name which matches the key of json data. here's my Live demo if you see the result in the life demo. it's only appending the last record. is it possible to make it show all records in order? json var json = '[{"castle":"big","commercial":"large","common":"sergio","cultural":"2009"},' + '{"castle":"big2","commercial":"large2","common":"sergio2","cultural":"20092"}]'; html <div class="castle"></div> <div class="commercial"></div> <div class="common"></div> <div class="cultural"></div> javascript var data = $.parseJSON(json); $.each(data, function(l,v) { $.each(v, function(k,o) { $('.'+k).attr('id', k+o); console.log($('#'+k+o).attr('id')); $('#'+k+o).text(o); }); }); for more illustration... I want the result in the live demo to look like this big large sergio 2009, big2 large2 sergio2 20092

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  • Will a higher hard drive size affect performance

    - by user273010
    My laptop came with a 500 GB hard drive. I use my laptop for storing my digital photographs, and only have about 14 GB of file storage left on the original hard drive. I have a 750 GB external hard drive, but am leery of relying on it for primary storage as I tend to knock things over and it has already crashed once and I lost a lot of the files. I am looking at a 1 TB internal hard drive, but am concerned if storing so much data will affect the computer's performance. Should I also increase RAM from 4 to 8 GB (the limit for my 64-bit, Windows 7, Asus A54C laptop)?

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  • Global hotkey capture in VB.net

    - by ggonsalv
    I want to have my app which is minimized to capture data selected in another app's window when the hot key is pressed. My app definitely doesn't have the focus. Additionally when the hot key is pressed I want to present a fading popup (Outlook style) so my app never gets focus. At a minimum I want to capture the Window name, Process ID and the selected data. The app which has focus is not my application? I know one option is to sniff the Clipboard, but are there any other solutions. This is to audit the rate of data-entry in to another system of which I have no control. It is a mainframe emulation client program(attachmate). The plan is complete data entry in Application X. Select a certain section of the screen in App X which is proof of data entry (transaction ID). Press the Magic Hotkey, which then 'sends' the selection to my App. From System.environment or system.Threading I can find the Windows logon. Similiarly I can also capture the time. All the data will be logged to SQL. Once Complete show Outlook style pop up saying the data entry has been logged. Any thoughts.

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  • Joining Tables Based on Foreign Keys

    - by maestrojed
    I have a table that has a lot of fields that are foreign keys referencing a related table. I am writing a script in PHP that will do the db queries. When I query this table for its data I need to know the values associated with these keys not the key. How do most people go about this? A 101 way to do this would be to query this table for its data including the foreign keys and then query the related tables to get each key's value. This could be a lot of queries (~10). Question 1: I think I could write 1 query with a bunch of joins. Would that be better? This approach also requires the querying script to know which table fields are foreign keys. Since I have many tables like this but all with different fields, this means writing nice generic functions is hard. MySQL InnoDB tables allow for foreign constraints. I know the database has these set up correctly. Question 2: What about the idea of querying the table and identifying what the constraints are and then matching them up using whatever process I decide on from Question 1. I like this idea but never see it being used in code. Makes me think its not a good idea for some reason. I would use something like SHOW CREATE TABLE tbl_name; to find what constraints/relationships exist for that table. Thank you for any suggestions or advice.

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  • How to make the value of one select box drive the options of a second select box

    - by Ben McCormack
    I want to make an HTML form with 2 select boxes. The selected option in the first select box should drive the options in the second select box. I would like to solve this dynamically on the client (using javascript or jQuery) rather than having to submit data to the server. For example, let's say I have the following Menu Categories and Menu Items: Sandwiches Turkey Ham Bacon Sides Mac 'n Cheese Mashed Potatoes Drinks Coca Cola Sprite Sweetwater 420 I would have two select boxes, named Menu Category and Items, respectively. When the user selects Sandwiches in the Menu Category box, the options in the Items box will only show Sandwich options. I'm stuck as how I might approach this. Once I filter out the 2nd list one time, how do I "find" the list options once I change my menu category in the 1st list? Also, if I'm thinking in SQL, I would have a key in the 1st box that would be used to link to the data in the 2nd box. However, I can't see where I have room for a "key" element in the 2nd box. How could this problem be solved with a combination of jQuery or plain javascript?

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  • Querying datetime.datetime on appengine acts different then dev server help!

    - by Alon Carmel
    Hey, I'm having some trouble with stuff that work locally and dont work on the app engine python environment: Basically, i want to get a program from an epg between ranges of date and time. i know i cannot do two where < so i saw a suggestion to save the dates as list as datetime.datetime which i did. [datetime.datetime(2010, 5, 10, 14, 25), datetime.datetime(2010, 5, 10, 15, 0)] This is ok. but when i try to compare to it: progranon = get_object(Programs2Channel, 'channel_id =', channelobj.key(), 'endstartdate >', programstart_minex, 'endstartdate <', programstart_minex ) This for some reason works locally, but fails to retrieve the data on the app engine. *Im using Google app engine django patch which uses the get_object to retrieve data in transactions. Please help. Here are more details: this is the LIST: [datetime.datetime(2010, 5, 13, 10, 45), datetime.datetime(2010, 5, 13, 11, 30)] #this is the query: programstart = ""+year+"-"+month+"-"+day+" "+hour+":"+minute programstart_minex = datetime.strptime(programstart, "%Y-%m-%d %H:%M") progranon = Programs2Channel.gql('WHERE channel_id = :channelid AND endstartdate > :programstartx AND endstartdate < :programstartx',channelid = channelobj.key(),programstartx=programstart_minex).get()

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  • My WD passport detected but not shown on my computer

    - by Rakesh Patel
    1TB WD harddisk is detected in laptop but drives not visible on my computer. Under disk managment drives shown without letters. Right clicking on these drives give 2 options: Delete volume Help. The same harddisk was running well on the same laptop a day before. It is also showing full size of hard drives, Healthy (Primary Partition) etc. (this happened after harddisk usage by guest). Harddisk is new only (about 5 month usage) Please suggest: Is there hardware related problem inside harddisk, if so is it repairable? Is there any option to recover data?

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  • Non-Windows, non-Unix-like OS's?

    - by dsimcha
    Since most operating systems I've heard of besides Windows seem to derive their heritage from Unix, I've been curious whether any OS's with the following characteristics exist: Not generally considered Unix-like, i.e. wasn't designed with Unix compatibility as a primary goal, doesn't use X11 as its default GUI in the most common distributions, doesn't support Unix commands by default, etc. Not in the Windows NT family. Is a modern production operating system, not a purely legacy operating system, a research/hobby project or an OS that's still in an alpha state. Is targeted at commodity x86/x64 PC hardware.

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  • silverlight treeview not loading subitems

    - by Jakob
    I'm interested in finding out why this isn't working: I have a treeview with some hierarchicaldatatemplates looking like this: <UserControl.Resources> <sdk:HierarchicalDataTemplate x:Key="nodeEntry"> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Path=Title}" /> </StackPanel> </sdk:HierarchicalDataTemplate> <sdk:HierarchicalDataTemplate x:Key="rootEntry" ItemsSource="{Binding Path=Nodes}" ItemTemplate="{StaticResource nodeEntry}"> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Path=Name}" /> </StackPanel> </sdk:HierarchicalDataTemplate> </UserControl.Resources> <sdk:TreeView Height="250" HorizontalAlignment="Left" ItemTemplate="{StaticResource rootEntry}" ItemsSource="{Binding ElementName=subjectDomainDataSource, Path=Data}" Name="rootTreeView" VerticalAlignment="Top" Width="180"/> The data is passed to the treeview from a domainservice using this method: public IEnumerable<Subject> GetSubjectList(Guid userid) { DataLoadOptions loadopts = new DataLoadOptions(); loadopts.LoadWith<Root>(s => s.Nodes); this.DataContext.LoadOptions = loadopts; return this.DataContext.Roots; } why then are only the root nodes shown in the treeview as if it only loaded a flat list, and not a hierarchy where the root Loads the NodesCollection?

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  • Go - Using a map for its set properties with user defined types

    - by Seth Hoenig
    I'm trying to use the built-in map type as a set for a type of my own (Point, in this case). The problem is, when I assign a Point to the map, and then later create a new, but equal point and use it as a key, the map behaves as though that key is not in the map. Is this not possible to do? // maptest.go package main import "fmt" func main() { set := make(map[*Point]bool) printSet(set) set[NewPoint(0, 0)] = true printSet(set) set[NewPoint(0, 2)] = true printSet(set) _, ok := set[NewPoint(3, 3)] // not in map if !ok { fmt.Print("correct error code for non existent element\n") } else { fmt.Print("incorrect error code for non existent element\n") } c, ok := set[NewPoint(0, 2)] // another one just like it already in map if ok { fmt.Print("correct error code for existent element\n") // should get this } else { fmt.Print("incorrect error code for existent element\n") // get this } fmt.Printf("c: %t\n", c) } func printSet(stuff map[*Point]bool) { fmt.Print("Set:\n") for k, v := range stuff { fmt.Printf("%s: %t\n", k, v) } } type Point struct { row int col int } func NewPoint(r, c int) *Point { return &Point{r, c} } func (p *Point) String() string { return fmt.Sprintf("{%d, %d}", p.row, p.col) } func (p *Point) Eq(o *Point) bool { return p.row == o.row && p.col == o.col }

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  • What happens to a Windows Dynamic Drive

    - by GruffTech
    In my windows (Windows 7) I have two primary logical volumns, One is on a SSD harddrive for my operating system and installed software, and my other is a Dynamic volume for my stored media. (I do alot of work with HD footage) I have all my media on the original DV tapes for backup purposes, just having them all available on my harddrive at all times is a major convience for me, well worth the few hundred dollar investment those 2TB drives were. Anyway, Long story short is my windows install has become problematic and I want to reformat windows. Does this, or will this effect my dynamic drive in any way? I've got almost 3 TB of video on there and i really dont want to re-import all my DV tapes.

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  • Booting CDs/USB devices after installing Windows 8

    - by shoyip
    I recently installed Windows 8 on one of my four primary partitions. I had two partitions for Windows 7 (boot and os), one for the Windows System Recovery Environment and the last for Ubuntu. I was often using Ubuntu, but after the installation of Windows 8 Pro I couldn't boot in it because it needed the reinstallation of GRUB2. So I thought to do it by Terminal in a live cd; but when I tried to boot the Live CD, it booted me Windows 8 Pro. This is a problem of UEFI, Secure Boot or my BIOS? It didn't happen never before now. And if it's a problem of Secure Boot, how to disable it? Thanks in advance, Sho.

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  • Delete element from Set

    - by Blitzkr1eg
    Hi. I have 2 classes Tema(Homework) and Disciplina (course), where a Course has a Set of homeworks. In Hibernate i have mapped this to a one-to-many associations like this: <class name="model.Disciplina" table="devgar_scoala.discipline" > <id name="id" > <generator class="increment"/> </id> <set name="listaTeme" table="devgar_scoala.teme"> <key column="Discipline_id" not-null="true" ></key> <one-to-many class="model.Tema" ></one-to-many> </set> </class> <class name="model.Tema" table="devgar_scoala.teme" > <id name="id"> <generator class="increment" /> </id> <property name="titlu" type="string" /> <property name="cerinta" type="binary"> <column name="cerinta" sql-type="blob" /> </property> </class> The problem is that it will add (insert rows in the table 'Teme') but it won't delete any rows and i get no exceptions thrown. Im using the merge() method.

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  • SQL query for selecting the firsts in a series by cloumn

    - by SP
    I'm having some trouble coming up with a query for what I am trying to do. I've got a table we'll call 'Movements' with the following columns: RecID(Key), Element(f-key), Time(datetime), Room(int) The table is holding a history of Movements for the Elements. One record contains the element the record is for, the time of the recorded location, and the room it was in at that time. What I would like are all records that indicate that an Element entered a room. That would mean the first (by time) entry for any element in a series of movements for that element in the same room. The input is a room number and a time. IE, I would like all of the records indicating that any Element entered room X after time Y. The closest I came was this Select Element, min(Time) from Movements where Time > Y and Room = x group by Element This will only give me one room entry record per Element though (If the Element has entered the room X twice since time Y I'll only get the first one back) Any ideas? Let me know if I have not explained this clearly. I'm using MS SQLServer 2005.

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  • Pygrub with DRBD on Xen 3.2

    - by Joril
    Hi all, we have a two-node cluster using DRBD 8.2 on CentOS 5.2 64bit. The cluster runs a few VMs on top of Xen 3.2.1, here's the configuration for an Ubuntu Jaunty VM: name = 'dev' bootloader = '/usr/bin/pygrub' memory = '512' vif = [ 'ip=192.168.1.217,mac=00:16:3E:CD:60:80' ] disk = [ 'phy:/dev/drbd24,xvda1,w', 'phy:/dev/drbd25,xvda2,w' ] As you can see, the disks are specified like "phy:", and as such pygrub doesn't know a thing about the underlying drbd device... So my problem is that even though the VM boots just fine, it doesn't handle the state of the drbd device. As a result, when for some reason the device gets to a secondary/secondary state, the VM won't boot, and I have to manually specify which node is primary. I read that starting with Xen 3.3 pygrub understands the "drbd:" specification, and I think that it would fix my problem, but I can't upgrade Xen at the moment... Is there a workaround? For example, could I use the 3.3 version of pygrub? Thanks!

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