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  • Using ASIHTTPRequest to download a file with Cocoa/MacRuby

    - by arbales
    I'm still trying to get a handle on Cocoa (both in Obj-C and MacRuby), and I'd really appreciate seeing how to download a file with ASIHTTPRequest (or without it) and MacRuby. Ideally, I'd like to be able show the progress inside a progress bar too. Must use a cocoa method for downloading, since open-uri in MacRuby is borken. Thanks for your help.

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  • How can I get a 302 redirection URL's Location header in PHP?

    - by QAH
    I am trying to find a universal way to expand most if not all of the shortened URLs out there. I know short URLs such as bit.ly, TinyURL, goo.gl, etc use the 302 redirection method to redirect you to another site. How can I make a HEAD request to the shortened URL in php and get the "Location" part of the header? Please help me with this. Thanks

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  • Defining byte arrray in javascript.

    - by kumar
    Hi How do i pass a byte array from javascript to ActiveX control. My javascritp will call WCF servie ( mehtod) and that method will return a byte array. after that i need to passs this byte array to the active x control. could any body provide me a solution for this.

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  • uitableview delegate methods are not called

    - by Sean
    hi all i got the problem that the tableview methods are not called the first time the tableview is shown. if switch back to the previous view and then click the button to show the tableview again, the methods are called this time. i've to say that i show an actionsheet while the tableview is loading. the actionsheet i call in the ViewWillAppear method. thanks in advance sean

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  • How can I drop a SqlServer Backup Device using SMO in C#?

    - by C-Pound Guru
    I can drop a SqlServer Backup Device using SQL-DMO using the following pseudo-code: SQLDMO.SQLServer2 server = New SQLDMO.SQLServer2(); server.Connect("myserver"); server.BackupDevices.Remove("mybackupdevice"); File.Delete("mybackupdevicephysicallocation"); SMO.Server.BackupDevices does not appear to have a Remove() method, so how can I drop a BackupDevice using SMO?

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  • How does one quickly access ruby and rails documentation when using vim?

    - by 46and2
    Hey all, What method are vim users out there using to quickly access documentation for both ruby and rails (other than switching to the browser to use ruby-doc or railsapi?). I was trying to adapt this script (http://vim.wikia.com/wiki/Online_documentation_for_word_under_cursor) to do the trick however it's only going to work if the cursor is over a class name and I'd like it to work with both class and methods. Thanks.

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  • How to expand row in a grid using rowexpander plugin Extjs 4.1.1

    - by Waseem
    How to expand row in a grid using rowexpander plugin? I am using the following code in my controller 'editbasicinfotitlegrid gridview' : { afterrender:this.expandAll } expandAll: function(){ var titlesGrid = Ext.getCmp('editBasicInfoTitleGrid'); var expander = titlesGrid.getPlugin('myRowExpander'); console.log(titlesGrid.plugins[0]); expander.toggleRow(0); } But this code gives me the following error Uncaught TypeError: Cannot call method 'down' of null

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  • Android - Custom Icons in ListView

    - by Ryan
    Is there any way to place a custom icon for each group item? Like for phone I'd like to place a phone, for housing I'd like to place a house. Here is my code, but it keeps throwing a Warning and locks up on me. ListView myList = (ListView) findViewById(R.id.myList); //ExpandableListAdapter adapter = new MyExpandableListAdapter(data); List<Map<String, Object>> groupData = new ArrayList<Map<String, Object>>(); Iterator it = data.entrySet().iterator(); while (it.hasNext()) { //Get the key name and value for it Map.Entry pair = (Map.Entry)it.next(); String keyName = (String) pair.getKey(); String value = pair.getValue().toString(); //Add the parents -- aka main categories Map<String, Object> curGroupMap = new HashMap<String, Object>(); groupData.add(curGroupMap); if (value == "Phone") curGroupMap.put("ICON", findViewById(R.drawable.phone)); else if (value == "Housing") curGroupMap.put("NAME", keyName); curGroupMap.put("VALUE", value); } // Set up our adapter mAdapter = new SimpleAdapter( mContext, groupData, R.layout.exp_list_parent, new String[] { "ICON", "NAME", "VALUE" }, new int[] { R.id.iconImg, R.id.rowText1, R.id.rowText2 } ); myList.setAdapter(mAdapter); The error i'm getting: 05-28 17:36:21.738: WARN/System.err(494): java.io.IOException: Is a directory 05-28 17:36:21.809: WARN/System.err(494): at org.apache.harmony.luni.platform.OSFileSystem.readImpl(Native Method) 05-28 17:36:21.838: WARN/System.err(494): at org.apache.harmony.luni.platform.OSFileSystem.read(OSFileSystem.java:158) 05-28 17:36:21.851: WARN/System.err(494): at java.io.FileInputStream.read(FileInputStream.java:319) 05-28 17:36:21.879: WARN/System.err(494): at java.io.BufferedInputStream.fillbuf(BufferedInputStream.java:183) 05-28 17:36:21.908: WARN/System.err(494): at java.io.BufferedInputStream.read(BufferedInputStream.java:346) 05-28 17:36:21.918: WARN/System.err(494): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 05-28 17:36:21.937: WARN/System.err(494): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:459) 05-28 17:36:21.948: WARN/System.err(494): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:271) 05-28 17:36:21.958: WARN/System.err(494): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:296) 05-28 17:36:21.978: WARN/System.err(494): at android.graphics.drawable.Drawable.createFromPath(Drawable.java:801) 05-28 17:36:21.988: WARN/System.err(494): at android.widget.ImageView.resolveUri(ImageView.java:501) 05-28 17:36:21.998: WARN/System.err(494): at android.widget.ImageView.setImageURI(ImageView.java:289) Thanks in advance for your help!!

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  • Silverlight with Visual Studio 2010 Isolated Storage Error

    - by Greg Finzer
    I am getting an error when trying to access isolated storage when running a Silverlight unit test project in VS2010. Test method Silverlight_Binary_Serialization_Tests.SerializationTests.SerializeBytesTest threw exception: System.IO.IsolatedStorage.IsolatedStorageException: Unable to determine application identity of the caller. Here is the line it is failing on: private readonly IsolatedStorageFile _store = IsolatedStorageFile.GetUserStoreForApplication();

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  • How do i deserialize an object with pyYaml using safe_load?

    - by systempuntoout
    Having a snippet like this: import yaml class User(object): def __init__(self, name, surname): self.name= name self.surname= surname user = User('spam', 'eggs') serialized_user = yaml.dump(user) deserialized_user = yaml.load(serialized_user) print "name: %s, surname %s" % (deserialized_user.name, deserialized_user.surname) Yaml docs says that it is not safe to call yaml.load with any data received from an untrusted source; so, what do i need to modify to my snippet\class to use safe_load method? Is it possible?

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  • Using sql column names in hibernate createSQlquery result

    - by Ricardo
    Hi all, i have a couple of sql views with composite primary keys that i want to query, and since Hibernate makes it a pain to work with composite keyes, im using createSQLQuery. The problem is that this method can only return a List, and i need to refer to the colums by their index. Any chance i could do like jdbc and refer to the columns by their sql name insted of their index? thanks

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • How to make C/C++ Refactoring with Eclipse

    - by egebilmuh
    Hi guys i want to eclipse for *C++* like *java* ,that is,i like eclipse for java(maybe it is caused that i dont use any ide for java...).Eclipse have CDT plug in for C++ but i need eclipse's refactoring property for *C++*,Any plug-in u know for refactoring in C/C++?{extract interface, extract class,pull up, pull down , change method signature.}plz help me at least give me advice such as use this tool etc etc.( and i looked some links in overflow like this http://stackoverflow.com/questions/1194709/refactoring-c-in-eclipse-cdt but i cant reach this project...)

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  • How to make C/C++ Refactoring with Eclipse

    - by egebilmuh
    Hi guys i want to eclipse for *C++* like *java* ,that is,i like eclipse for java(maybe it is caused that i dont use any ide for java...).Eclipse have CDT plug in for C++ but i need eclipse's refactoring property for *C++*,Any plug-in u know for refactoring in C/C++?{extract interface, extract class,pull up, pull down , change method signature.}plz help me at least give me advice such as use this tool etc etc.( and i looked some links in overflow like this http://stackoverflow.com/questions/1194709/refactoring-c-in-eclipse-cdt but i cant reach this project...)

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  • Java HashSet<Integer> to int array

    - by jackweeden
    I've got a HashSet with a bunch of (you guessed it) integers in it. I want to turn it into an array, but calling hashset.toArray(); returns an array of Object type. This is fine, but is there a better way to cast it to an array of int, other than iterating through every element manually? A method I want to pass it to void doSomething(int[] arr) Won't accept the Object[] array, even if I try casting it like doSomething((int[]) hashSet.toArray());

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  • Multi-part question about multi-threading, locks and multi-core processors (multi ^ 3)

    - by MusiGenesis
    I have a program with two methods. The first method takes two arrays as parameters, and performs an operation in which values from one array are conditionally written into the other, like so: void Blend(int[] dest, int[] src, int offset) { for (int i = 0; i < src.Length; i++) { int rdr = dest[i + offset]; dest[i + offset] = src[i] > rdr? src[i] : rdr; } } The second method creates two separate sets of int arrays and iterates through them such that each array of one set is Blended with each array from the other set, like so: void CrossBlend() { int[][] set1 = new int[150][75000]; // we'll pretend this actually compiles int[][] set2 = new int[25][10000]; // we'll pretend this actually compiles for (int i1 = 0; i1 < set1.Length; i1++) { for (int i2 = 0; i2 < set2.Length; i2++) { Blend(set1[i1], set2[i2], 0); // or any offset, doesn't matter } } } First question: Since this apporoach is an obvious candidate for parallelization, is it intrinsically thread-safe? It seems like no, since I can conceive a scenario (unlikely, I think) where one thread's changes are lost because a different threads ~simultaneous operation. If no, would this: void Blend(int[] dest, int[] src, int offset) { lock (dest) { for (int i = 0; i < src.Length; i++) { int rdr = dest[i + offset]; dest[i + offset] = src[i] > rdr? src[i] : rdr; } } } be an effective fix? Second question: If so, what would be the likely performance cost of using locks like this? I assume that with something like this, if a thread attempts to lock a destination array that is currently locked by another thread, the first thread would block until the lock was released instead of continuing to process something. Also, how much time does it actually take to acquire a lock? Nanosecond scale, or worse than that? Would this be a major issue in something like this? Third question: How would I best approach this problem in a multi-threaded way that would take advantage of multi-core processors (and this is based on the potentially wrong assumption that a multi-threaded solution would not speed up this operation on a single core processor)? I'm guessing that I would want to have one thread running per core, but I don't know if that's true.

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  • .NET RegEx "Memory Leak" investigation

    - by Kevin Pullin
    I recently looked into some .NET "memory leaks" (i.e. unexpected, lingering GC rooted objects) in a WinForms app. After loading and then closing a huge report, the memory usage did not drop as expected even after a couple of gen2 collections. Assuming that the reporting control was being kept alive by a stray event handler I cracked open WinDbg to see what was happening... Using WinDbg, the !dumpheap -stat command reported a large amount of memory was consumed by string instances. Further refining this down with the !dumpheap -type System.String command I found the culprit, a 90MB string used for the report, at address 03be7930. The last step was to invoke !gcroot 03be7930 to see which object(s) were keeping it alive. My expectations were incorrect - it was not an unhooked event handler hanging onto the reporting control (and report string), but instead it was held on by a System.Text.RegularExpressions.RegexInterpreter instance, which itself is a descendant of a System.Text.RegularExpressions.CachedCodeEntry. Now, the caching of Regexs is (somewhat) common knowledge as this helps to reduce the overhead of having to recompile the Regex each time it is used. But what then does this have to do with keeping my string alive? Based on analysis using Reflector, it turns out that the input string is stored in the RegexInterpreter whenever a Regex method is called. The RegexInterpreter holds onto this string reference until a new string is fed into it by a subsequent Regex method invocation. I'd expect similar behaviour by hanging onto Regex.Match instances and perhaps others. The chain is something like this: Regex.Split, Regex.Match, Regex.Replace, etc Regex.Run RegexScanner.Scan (RegexScanner is the base class, RegexInterpreter is the subclass described above). The offending Regex is only used for reporting, rarely used, and therefore unlikely to be used again to clear out the existing report string. And even if the Regex was used at a later point, it would probably be processing another large report. This is a relatively significant problem and just plain feels dirty. All that said, I found a few options on how to resolve, or at least work around, this scenario. I'll let the community respond first and if no takers come forward I will fill in any gaps in a day or two.

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  • When using a mocking framework and MSPEC where do you set your stubs

    - by Kev Hunter
    I am relatively new to using MSpec and as I write more and more tests it becomes obvious to reduce duplication you often have to use a base class for your setup as per Rob Conery's article I am happy with using the AssertWasCalled method to verify my expectations, but where do you set up a stub's return value, I find it useful to set the context in the base class injecting my dependencies but that (I think) means that I need to set my stubs up in the Because delegate which just feels wrong. Is there a better approach I am missing?

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  • Stretch array (Numpy, Python)

    - by Snej
    I have a numpy array [1,2,3,4,5,6,7,8,9,10,11,12,13,14] and want to have an array structured like [[1,2,3,4], [2,3,4,5], [3,4,5,6], ..., [11,12,13,14]]. Sure this is possible by looping over the large array and adding arrays of length four to the new array, but I'm curious if there is some secret 'magic' Python method doing just this :)

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  • Find a free port C#

    - by Alon
    How does IPEndPoint finds a free port when I do new IPEndPoint(IPAddress.Any, 0), for example? Is it possible to find a free port from a range, without the GetActiveTcpConnections method? because it is slow - I need a faster way to do this. Thanks.

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  • MessageQueue.BeginReceive() null ref error - c#

    - by ltech
    Have a windows service that listens to a msmq. In the OnStart method is have this protected override void OnStart(string[] args) { try { _queue = new MessageQueue(_qPath);//this part works as i had logging before and afer this call //Add MSMQ Event _queue.ReceiveCompleted += new ReceiveCompletedEventHandler(queue_ReceiveCompleted);//this part works as i had logging before and afer this call _queue.BeginReceive();//This is where it is failing - get a null reference exception ; } catch(Exception ex) { EventLogger.LogEvent(EventSource, EventLogType, "OnStart" + _lineFeed + ex.InnerException.ToString() + _lineFeed + ex.Message.ToString()); } } where private MessageQueue _queue = null;

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  • Java Algorithm HmacSHA256 not available

    - by user324929
    Hi, I am trying an encryption-decryption code in java. When I am trying to run it with JDK and code in class with main method it is running fine. But when I am trying to run same code in Tomcat, tomcat is throwing exception: java.security.NoSuchAlgorithmException: Algorithm HmacSHA256 not available. Can anybody guide me to proper direction please? Thank you.

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