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  • How to save webpage to string with cookies support (httpWebRequest)

    - by Maciej
    I need to read webpage and store its content in string for further processing. Sounds simply but I have problem with cookies support. Opened page says I need browser supporting cookies (or turned on). I've made method trying do that via httpWebRequest - which normally works to me but I've come to a standstill with those unfortunate cookies... Any idea how to make it working? Here is my method: string ReadHtml (string address, string encoding) { Uri url = new Uri(address); CookieContainer cookieContainer = new CookieContainer(); HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url); httpWebRequest.AllowAutoRedirect = true; httpWebRequest.KeepAlive = true; httpWebRequest.CookieContainer = cookieContainer; httpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; httpWebRequest.Method = "GET"; HttpWebResponse webResponse = (HttpWebResponse)httpWebRequest.GetResponse(); // Code Page Encoding enc = Encoding.GetEncoding(encoding); // Read content StreamReader loResponseStream = new StreamReader(webResponse.GetResponseStream(),enc); string lcHtml = loResponseStream.ReadToEnd(); webResponse.Close(); loResponseStream.Close(); return lcHtml; }

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  • nMoq basic questions

    - by devoured elysium
    I made the following test for my class: var mock = new Mock<IRandomNumberGenerator>(); mock.Setup(framework => framework.Generate(0, 50)) .Returns(7.0) var rnac = new RandomNumberAverageCounter(mock.Object, 1, 100); rnac.Run(); double result = rnac.GetAverage(); Assert.AreEqual(result, 7.0, 0.1); The problem here was that I changed my mind about what range of values Generate(int min, int max) would use. I ran the test and it failed. I know that that is what it's supposed to happen but I was left wondering if isn't there a way to launch an exception or throw in a message when trying to run the method params. Also, if I want to run this Generate() method 10 times with different values (let's say, from 1 to 10), will I have to make 10 mock setups or something, or is there a special method for it? The best I could think of is this (which isn't bad, I'm just asking if there is other better way): for (int i = 1; i < 10; ++i) { mock.Setup(framework => framework.Generate(1, 100)) .Returns((double)i); } Thanks

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  • Convert RGB value to HSV

    - by marionmaiden
    I've found a method on the Internet to convert RGB values to HSV values. Unfortunately, when the values are R=G=B, I'm getting a NaN, because of the 0/0 operation. Do you know if there is an implemented method for this conversion in Java, or what do I have to do when I get the 0/0 division to get the right value of the HSV? Here comes my method, adapted from some code on the Internet: public static double[] RGBtoHSV(double r, double g, double b){ double h, s, v; double min, max, delta; min = Math.min(Math.min(r, g), b); max = Math.max(Math.max(r, g), b); // V v = max; delta = max - min; // S if( max != 0 ) s = delta / max; else { s = 0; h = -1; return new double[]{h,s,v}; } // H if( r == max ) h = ( g - b ) / delta; // between yellow & magenta else if( g == max ) h = 2 + ( b - r ) / delta; // between cyan & yellow else h = 4 + ( r - g ) / delta; // between magenta & cyan h *= 60; // degrees if( h < 0 ) h += 360; return new double[]{h,s,v}; }

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  • The Date type and the Android database

    - by cdonner
    I understand that SQLite stores dates as long integers. When I read rows into a cursor using the standard method (i.e. using the query() method that reads data into a cursor), the result is a date string that includes the time. If I want a different format, I have to parse the string back into a date - possible, but a bit backwards. By using a ViewBinder (as suggested in this question), I can pretty much do anything I want, but the date is already a string at the time the method executes. The accepted answer to the above question also suggests that storing dates as longs would help avoid this problem. I don't want to do that, just in case I want to interpret my data with something else than this application. Maybe I want to expose it via a provider. Is there a way to handle this in the database adapter instead, i.e. controlling the date format that the cursor contains, so that I don't have to change the schema, and don't have to parse the default output back into a Date type?

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  • Problem calling Request using RequestBuilder

    - by Tushar Ahirrao
    Hi My Code is String url = "http: gd.geobytes.com/gd?after=-1&variables=GeobytesCountry,GeobytesCity"; RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL .encode(url)); try { Request request = builder.sendRequest(null, new RequestCallback() { public void onError(Request request, Throwable exception) { Couldn't connect to server (could be timeout, SOP violation, etc.) } public void onResponseReceived(Request request, Response response) { System.out.println(response.getText() + "Response"); if (200 == response.getStatusCode()) { Window.alert(response.getText()); } else { Window.alert(response.getText()); } } }); } catch (RequestException e) { e.printStackTrace(); } i receive following error com.google.gwt.http.client.RequestPermissionException: The URL http://gd.geobytes.com/gd?after=-1&variables=GeobytesCountry,GeobytesCity is invalid or violates the same-origin security restriction at com.google.gwt.http.client.RequestBuilder.doSend(RequestBuilder.java:378) at com.google.gwt.http.client.RequestBuilder.sendRequest(RequestBuilder.java:254) at com.ip.client.IpAddressTest.onModuleLoad(IpAddressTest.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:369) at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:185) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:380) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222) at java.lang.Thread.run(Thread.java:619) Caused by: com.google.gwt.http.client.RequestException: (NS_ERROR_DOM_BAD_URI): Access to restricted URI denied

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  • Java RMI timeout in callback

    - by sakra
    We are using Java RMI for communication. An RMI client passes a processing request and an object with a callback method to an RMI server. The server invokes the callback when it is done with processing. The setup is similar to the one described in RMI Callbacks. Occasionally we are getting a "read time out" exception in the server upon invoking the callback method. The callback thread stalls for about a minute before the exception is raised. java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.net.SocketTimeoutException: Read timed out at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:286) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy2.finished(Unknown Source) at com.unrisk.db.grid.GridTask.invokeCallback(com.unrisk.db.grid.GridTask:1292) at com.unrisk.db.grid.GridTask.invokeCallbacks(com.unrisk.db.grid.GridTask:1304) at com.unrisk.db.service.tasks.EquityMDTask.afterRun(com.unrisk.db.service.tasks.EquityMDTask:276) at com.unrisk.db.grid.GridTask.run(com.unrisk.db.grid.GridTask:720) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:129) at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) at java.io.BufferedInputStream.read(BufferedInputStream.java:237) at java.io.DataInputStream.readByte(DataInputStream.java:248) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:228) ... 12 more We are using Sun Java JDK 1.6.0_18 under Windows Server 2003 32-bit. Is it possible to work around the connection problems by tuning RMI related system properties?

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  • Error in WCF service - Silverlight client communication.

    - by David
    I created a WCF service and I planned to consume this in a Silverlight application. So I created the WCF service in the Website host project. The service is a simple WCF service that only returns a number - something like a Hello World WCF-SL. So after adding a service reference in the silverlight client project to the Service URI, after calling async the service method (by using the generated proxy), I get the following exception in the callback method: An error occurred while trying to make a request to URI 'http://localhost:4566/SLService.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details. I only created a HelloWorld WCF service with nothing else but a simple method that returns a dumb number and it's hosted on my locally. Must I have clientaccesspolicy.xml or crossdomain.xml? I acces my service locally. Every time I create a new simple/dumb WCF-SL solution, I get this error. I use VS2010 and Silverlight 4. I cannot get a simple/dumb WCF-SL solution working locally. Is there something wrong with the configuration? On another machine in the same network, it does work properly, so I assume something is misconfigured. Any thoughts?

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  • OrientationEventListener not working properly

    - by nixau
    Hi all, I need to handle orientation changes in my Android application. For this purpose I decided to use OrientationEventListener convenience class. But his callback method is given somewhat strange behavior. My application starts in the portrait mode and then eventually switches to the lanscape one. I have some custom code executing in the callback onOrientationChanged method that provides some additional UI handling logic - it has a few calls to findViewById. What is strange is that when switching back from landscape to portrait mode onOrientationChanged callback is called twice, and what's even worse - the second call is dealing with bad Context - findViewById method starts returning null. These calls are made right from the MainThread @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); listener = new OrientationListener(); } @Override protected void onResume() { super.onResume(); // enabling listening listener.enable(); } @Override protected void onPause() { super.onPause(); // disabling listening listener.disable(); } I've replicated the same behavior with a dummy Activity without any logic except for one that deals with orientation hadling. I initiate orientation switch from the Android 2.2 emulator by pressing Ctrl+F11 What could be wrong? Upd: Inner class that implements OrientationEventListener private class OrientationListener extends OrientationEventListener { public OrientationL() { super(getBaseContext()); } @Override public void onOrientationChanged(int orientation) { toString(); } } }

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  • OpenEjb DeploymentLoader.getWebDescriptors NullPointerException

    - by jwmajors81
    I am currently getting the following error when I try to startup an EAR that includes OpenEJB. The error is: java.lang.NullPointerException at org.apache.openejb.config.DeploymentLoader.getWebDescriptors(DeploymentLoader.java:1057) at org.apache.openejb.config.DeploymentLoader.discoverModuleType(DeploymentLoader.java:1162) at org.apache.openejb.config.DeploymentsResolver.processUrls(DeploymentsResolver.java:294) at org.apache.openejb.config.DeploymentsResolver.loadFromClasspath(DeploymentsResolver.java:248) at org.apache.openejb.spring.ClassPathApplication.loadApplications(ClassPathApplication.java:56) at org.apache.openejb.spring.AbstractApplication.deployApplication(AbstractApplication.java:106) at org.apache.openejb.spring.OpenEJB.deployApplication(OpenEJB.java:342) at org.apache.openejb.spring.AbstractApplication.start(AbstractApplication.java:94) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:618) at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:340) The environment consists of: - Spring 3.0 - OpenEJB 3.1 - WebSphere 6.1 (Without EJB/Web Service feature packs) - OpenEJB-Spring jar The app-config.xml that configures Spring and OpenEJB looks like: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd" Also please note that I do have a JUnit test that runs against the app-config.xml specified above that can successfully load the application context file. It is just when I deploy it to WebSphere I encounter the error provided at the beginning of this message. Any assistance would be greatly appreciated. Thanks, Jeremy

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  • Persist subclass as superclass using Hibernate

    - by franziga
    I have a subclass and a superclass. However, only the fields of the superclass are needed to be persist. session.saveOrUpdate((Superclass) subclass); If I do the above, I will get the following exception. org.hibernate.MappingException: Unknown entity: test.Superclass at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:628) at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1366) at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:203) at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:535) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:103) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:535) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:527) at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:523) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:342) at $Proxy54.saveOrUpdate(Unknown Source) How can I persist a subclass as a superclass? I do not prefer creating a superclass instance and then passing the values from the subclass instance. Because, it is easy to forget updating the logic if extra fields are added to superclass in the future.

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  • How effective can this Tagging solution be?

    - by Pablo
    Im working on an image sharing site and want to implement tagging for the images. I've read Questions #20856 and #2504150 I have few concerns with the approach on the questions above. First of all it looks easy to link an image to a tag. However getting images by tag relation is not as easy. Not easy because you will have to get the image-to-tag relation from one table and then make a big query with a bunch of OR statements( one OR for every image). Before i even research the tagging topic i started testing the following method: This tables as examples: Table: Image Columns: ItemID, Title, Tags Table: Tag Columns: TagID, Name The Tags column in the Image table takes a string with multiple tagID from the Tag table enclosed by dashes(-). For example: -65-25-105- Links an image with the TagID 65,25 and 105. With this method i find it easier to get images by tag as i can get the TagID with one query and get all the images with another simple query like: SELECT * FROM Image WHERE Tags LIKE %-65-% So if i use this method for tagging, How effective this is? Is querying by LIKE %-65-% a slow process? What problems can i face in the future?

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  • NoSuchMethod exception thrown in GWT

    - by eb1
    I'm starting to get my feet wet in the latest Google Web Toolkit using the Eclipse plugin on OS X 10.5.8. So far I've been able to get the client up and running, which is great. The server, though, is a different matter. I'm trying to link to a .jar file that has some classes I want to use in a server ServiceImpl class, but it seems to have glommed onto a previous iteration of the .jar - I've added a method, rebuilt the jar, removed the jar from the libraries tab on the GWT project's build path (as well as on the exports) and reincluded the jar. No luck - I'm still getting: [WARN] Exception while dispatching incoming RPC call com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract org.gwtapplication.client.LWDocument org.gwtapplication.client.DocumentService.getDocument()' threw an unexpected exception: java.lang.NoSuchMethodError: org.externalmodel.MyReallyValidClass.toSomething()Ljava/lang/String; at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:378) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:581) ... Caused by: java.lang.NoSuchMethodError: org.externalmodel.MyReallyValidClass.toSomething()Ljava/lang/String; at org.application.server.DocumentServiceImpl.getDocument(DocumentServiceImpl.java:45) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) Eclipse's code sense has no problems resolving the MyReallyValidClass.toSomething() call, and there are no errors with other calls into the externalmodel classes. Any clue where I should be looking?

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  • jquery insertAfter or append question

    - by user271619
    I am playing around with validating form inputs. For now I'm simply having fun with displaying a message after the input. I'm using the after() method to display simple text, and when I purposely make a mistake in the box I display the message perfectly. However, if I purposely make a mistake again, it immediately adds the same message after the first error message. Is there a method that replaces the original? I didn't want to try to add some more code to look for that original error message, delete it, and then insert the same message again. I will if I have to, but I thought I'd ask first. Here's my code: <script language="javascript" type="text/javascript"> $(document).ready(function(){ $("form#testform").submit(function(){ if($("#fieldname1").val().length < 5){ $("#fieldone").after("<div>not enough characters</div>"); } });return false; }); </script> <form id="testform" method="post"> <table> <tr> <td style="width:100px;">Field One:</td> <td><input type="text" name="fieldname1" id="fieldname1" /></td> </tr> <tr> <td>&nbsp;</td> <td><input type="submit" name="Submit" value="Submit" /></td> </tr> </table> </form>

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  • Marshal.StringToCoTaskMemAnsi converting non-Latin characters when sending raw data to a printer

    - by rem
    For sending raw data to a thermal DATAMAX printer I'm using RawPrinterHelper class from this Microsoft KB article. When a string sent to printer contains only Latin characters, everything is OK. But non-Latin, in my case Russian characters in a string, are not printed correct. I think the problem is in using Marshal.StringToCoTaskMemAnsi method for converting the string: public static bool SendStringToPrinter(string szPrinterName, string szString) { IntPtr pBytes; Int32 dwCount; // How many characters are in the string? dwCount = szString.Length; // Assume that the printer is expecting ANSI text, and then convert // the string to ANSI text. pBytes = Marshal.StringToCoTaskMemAnsi(szString); // Send the converted ANSI string to the printer. SendBytesToPrinter(szPrinterName, pBytes, dwCount); Marshal.FreeCoTaskMem(pBytes); return true; } Just to note, Russian characters in the string are put in hex format, like "\x83", but nevertheless the method doesn't put this hex value in unmanaged memory as it is, but converts it, I think, according with ANSI code page to a character and then printer can not read it correctly. If I try to compose a file, using Hex editor and put correct hex values in place of non-Latin characters and then send the file to a printer using another method from the same class SendFileToPrinter, everything, including Russian characters is printed correctly. How in this case the problem with sending string, containing non-Latin characters, could be solved?

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  • Jquery html grab + calling a controller action using javascript (ruby on rails)

    - by Zind
    Preface: I consider myself "slightly effective" in ruby on rails, and a complete novice in javascript. Also, yes, I have installed jQuery and associated plugins instead of the default Prototype library. I am in a situation where I am pulling in a table from off-site in an iframe (which is taking care of all internal JS for me) such that when a part of the table is clicked, a td will gain the class "active." What I would like to do is take this info (I'm assuming I can get it in a string format), and pass it to a method (in my controller, I'm assuming) which will parse the html, pull out the pertinent info, and then call a creation method in the same controller with the parsed info, the end result being a new item in that table. What I have so far is javascript which I believe is correct so far: <script type="text/javascript"> var ImportInfo = function() { var info = $('td.active').html(); // call controller action which parses the given string, //checks for existence in database, and adds new row if needed } $("#Import").click(ImportInfo); </script> and, of course, a button with id="ImportLocation." I have looked at this question: http://stackoverflow.com/questions/1334447/using-jquery-to-call-a-controller-action but am somewhat unsure as to how to call a controller action to pass the contents of the td as a string. Is this doable with the jQuery post method?

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  • SMTP on C: STARTTLS via OpenSSL

    - by Jackell
    Hi all! I am using openssl to build secure smtp connections to gmail.com:25. So I can successfully connect to the server and sends a command STARTTLS (I receive 220 2.0.0 Ready to start TLS). Then execute the following code without disconnecting: SSL_METHOD* method = NULL; SSL_library_init(); SSL_load_error_strings(); method = SSLv23_client_method(); ctx = SSL_CTX_new(method); if (ctx == NULL) { ERR_print_errors_fp(stderr); } SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2); ssl = SSL_new(ctx); if (!SSL_set_fd(ssl, socket)) { ERR_print_errors_fp(stderr); return; } if (ssl) { if (SSL_connect((SSL*)ssl) < 1) { ERR_print_errors_fp(stderr); } // then i think i need to send EHLO } But after calling SSL_connect I get an error: 24953:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:s23_clnt.c:601: If I use SSLv3_client_method I get an error: 18143:error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number:s3_pkt.c:284. And If TLSv1_client_method: 21293:error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number:s3_pkt.c:284: Why? What I do wrong?

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  • Lambdas within Extension methods: Possible memory leak?

    - by Oliver
    I just gave an answer to a quite simple question by using an extension method. But after writing it down i remembered that you can't unsubscribe a lambda from an event handler. So far no big problem. But how does all this behave within an extension method?? Below is my code snipped again. So can anyone enlighten me, if this will lead to myriads of timers hanging around in memory if you call this extension method multiple times? I would say no, cause the scope of the timer is limited within this function. So after leaving it no one else has a reference to this object. I'm just a little unsure, cause we're here within a static function in a static class. public static class LabelExtensions { public static Label BlinkText(this Label label, int duration) { Timer timer = new Timer(); timer.Interval = duration; timer.Tick += (sender, e) => { timer.Stop(); label.Font = new Font(label.Font, label.Font.Style ^ FontStyle.Bold); }; label.Font = new Font(label.Font, label.Font.Style | FontStyle.Bold); timer.Start(); return label; } }

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  • Programmatically implementing an interface that combines some instances of the same interface in var

    - by namin
    What is the best way to implement an interface that combines some instances of the same interface in various specified ways? I need to do this for multiple interfaces and I want to minimize the boilerplate and still achieve good efficiency, because I need this for a critical production system. Here is a sketch of the problem. Abstractly, I have a generic combiner class which takes the instances and specify the various combinators: class Combiner<I> { I[] instances; <T> T combineSomeWay(InstanceMethod<I,T> method) { // ... method.call(instances[i]) ... combined in some way ... } // more combinators } Now, let's say I want to implement the following interface among many others: Interface Foo { String bar(int baz); } I want to end up with code like this: class FooCombiner implements Foo { Combiner<Foo> combiner; @Override public String bar(final int baz) { return combiner.combineSomeWay(new InstanceMethod<Foo, String> { @Override public call(Foo instance) { return instance.bar(baz); } }); } } Now, this can quickly get long and winded if the interfaces have lots of methods. I know I could use a dynamic proxy from the Java reflection API to implement such interfaces, but method access via reflection is hundred times slower. So what are the alternatives to boilerplate and reflection in this case?

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  • Pylons error "No object (name: request) has been registered for this thread" with debug = false

    - by Evgeny
    I'm unable to access the request object in my Pylons 0.9.7 controller when I set debug = false in the .ini file. I have the following code: def run_something(self): print('!!! request = %r' % request) print('!!! request.params = %r' % request.params) yield 'Stuff' With debugging enabled this works fine and prints out: !!! request = <Request at 0x9571190 POST http://my_url> !!! request.params = UnicodeMultiDict([... lots of stuff ...]) If I set debug = false I get the following: !!! request = <paste.registry.StackedObjectProxy object at 0x4093790> Error - <type 'exceptions.TypeError'>: No object (name: request) has been registered for this thread The stack trace confirms that the error is on the print('!!! request.params = %r' % request.params) line. I'm running it using the Paste server and these two lines are the very first lines in my controller method. This only occurs if I have yield statements in the method (even though the statements aren't reached). I'm guessing Pylons sees that it's a generator method and runs it on some other thread. My questions are: How do I make it work with debug = false ? Why does it work with debug = true ? Obviously this is quite a dangerous bug, since I normally develop with debug = true, so it can go unnoticed during development.

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  • Getting Indy Error "Could not bind socket. Address and port are already in use"

    - by M Schenkel
    I have developed a Delphi web server application (TWebModule). It runs as a ISAPI DLL on Apache under Windows. The application in turn makes frequent https calls to other web sites using the Indy TIdHTTP component. Periodically I get this error when using the TIdHTTP.get method: Could not bind socket. Address and port are already in use Here is the code: IdSSLIOHandlerSocket1 := TIdSSLIOHandlerSocketOpenSSL.create(nil); IdHTTP := TIdHTTP.create(nil); idhttp.handleredirects := True; idhttp.OnRedirect := DoRedirect; with IdSSLIOHandlerSocket1 do begin SSLOptions.Method := sslvSSLv3; SSLOptions.Mode := sslmUnassigned; SSLOptions.VerifyMode := []; SSLOptions.VerifyDepth := 2; end; with IdHTTP do begin IOHandler := IdSSLIOHandlerSocket1; ProxyParams.BasicAuthentication := False; Request.UserAgent := 'Test Google Analytics Interface'; Request.ContentType := 'text/html'; request.connection := 'keep-alive'; Request.Accept := 'text/html, */*'; end; try idhttp.get('http://www.mysite.com......'); except ....... end; IdHTTP.free; IdSSLIOHandlerSocket1.free; I have read about the reusesocket method, which can be set on both the TIdHttp and TIdSSLLIOHandlerSocketOpenSSL objects. Will setting this to rsTrue solve my problems? I ask because I have not been able to replicate this error, it just happens periodically. Other considerations: I know multiple instances of TWebModule are being spawned. Would wrapping all calls to TIdHttp.get within a TCriticalSection solve the problem?

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  • Axis2 with OpenEJB error on Tomcat

    - by kostya
    Hi, I deployed on Tomcat Axis2 and OpenEjb and got the error. If deploy either only axis2 or openejb, they works properly, but when deploy them together, Axis2 can't be deployed, but OpenEjb is available. Could anybody help with this problem, please? This is error that I got when Tomcat starts : SEVERE: Error deploying web application archive axis2.war java.lang.ArrayIndexOutOfBoundsException: 48188 at org.apache.xbean.asm.ClassReader.readClass(Unknown Source) at org.apache.xbean.asm.ClassReader.accept(Unknown Source) at org.apache.xbean.asm.ClassReader.accept(Unknown Source) at org.apache.openejb.util.AnnotationFinder.readClassDef(AnnotationFinder.java:251) at org.apache.openejb.util.AnnotationFinder.find(AnnotationFinder.java:157) at org.apache.openejb.config.DeploymentLoader.discoverModuleType(DeploymentLoader.java:1198) at org.apache.openejb.tomcat.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:552) at org.apache.openejb.tomcat.catalina.TomcatWebAppBuilder.start(TomcatWebAppBuilder.java:242) at org.apache.openejb.tomcat.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:58) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4377) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:905) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:740) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

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  • simpletest - Why does setReturnValue() seem to change behaviour depending on if test is run in isola

    - by JW
    I am using SimpleTest version 1.0.1 for a unit test. I create a new mock object within a test method and on it i do: $MockDbAdaptor->setReturnValue('query',1); Now, when i run this in a standalone unit test my tested object is happy to see 1 returned when query() is called on the mock db adaptor. However, when this exact same test is run as part of my 'all_tests' TestSuite, the test is failing. This happens because a call to the mock's query() method does not appear to return any value - thus causing my test subject to complain and trigger an unexpected exception that fails the test. So, the behaviour of setReturnValue() seems to change depending on whether the test is run in isolation or not. I can get it to work in both a standalone and TestSuite contexts by using this instead: $MockDbAdaptor->setReturnValueAt(0,'query',1); So my immediate problem can be fixed ...but it feels like a hack. I thought if i create a new mock within a test method then why is the setReturnValue() behaviour getting affected by the context in which the test class instance is run? It feel like a bug.

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  • AssemblyLoadException in postsharp, problem with arguments from referenced DLLs?

    - by RodH257
    I'm just starting out with postsharp/AOP. I want to make some instrumentation for C# to track the usage of some addins that I write for a peice of software. I am trying to use the OnMethodBoundaryAspect class to take note of the values of some of the parameters when the method is called. Those parameters are types which are referenced in an external DLL. When I add my attribute to the method, the project won't build, I get the following error Error 2 Unhandled exception (2.0.5.1204, 64 bit, CLR 2.0, Release): PostSharp.CodeModel.AssemblyLoadException: Error while loading the assembly "C:\Program Files\Autodesk\Revit Structure 2011\Program\RevitAPI.dll": Could not load file or assembly 'revitapi, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515) The REvitAPI.dll is the file with the type in it. I've also tested just adding the attribute to the project but not applying it to any methods, this also causes the error. So it appears its not related to the method parameter types itself, but merely the existence of this DLL. Has anyone come across this issue before, or can anyone point me in the right direction of where to get some more info on this?

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  • Best practices for class-mapping with SoapClient

    - by Foofy
    Using SoapClient's class mapping feature and it's pretty sweet. Unfortunately the SOAP service we're using has a bunch of read-only properties on some of the objects and will throw faults if the properties are passed back as anything but null. Need to filter out the properties before they're used in the SOAP call and am looking for advice on the best way to do it. So far the options are: Stick to a convention where I use getter and setter functions to manipulate the properties, and use property overloading to filter method access since only SoapClient would be doing that. E.g. developers would access properties like this: $obj->getAccountNumber() SoapClient would access properties like this: $obj->accountNumber I don't like this because the properties are still exposed and things could go wrong if developers don't stick to convention. Have a wrapper for SoapClient that sets a public property the mapped objects can check to see if the property is being accessed by SoapClient. I already have a wrapper that assigns a reference to itself to all the mapped objects. class SoapClientWrapper { public function __soapCall($method, $args) { $this->setSoapMode(true); $this->_soapClient->__soapCall($method, $args); $this->setSoapMode(false); } } class Invoice { function __get($val) { if($this->_soapClient->getSoapMode()) { return null; } else { return $this->$val; } } } This works but it doesn't feel right and seems a bit clunky. Do the mapping manually, and don't use SoapClient's mapping features. I'd just have a function on all the mapped objects that returns the safe-to-send properties. Also, nobody would have access to properties they shouldn't since I could enforce getters and setters. A lot more work, though.

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  • Update table columns bound to NSArrayController

    - by Loz
    Hi, I'm fairly new to the world of bindings in cocoa, and I'm having some troubles (perhaps/probably due to a misunderstanding). I have a singleton that contains an NSMutableArray called plugins, containing objects of class Plugin. It has a method called loadPlugins which adds objects to the plugins array. This may be called at any point. It's been added as an instance in Interface Builder. Also in IB is an NSObjectController, whose content outlet is connected to the singleton. There is also an NSArrayController, whose contentArray is bound to the NSObjectController (controller key is 'selection', model key path is 'plugins', object class name is 'Plugin'). And finally I have a table view with 2 columns, the values of which are bound to the NSArrayController's arrangedObjects, using keys of properties in the Plugin class. So far so standard (as far as I can tell from tutorials at least). My trouble is that when the loadPlugins method is called in the singleton, and objects are added to the plugins array, the table doesn't update to show the objects (unless loadPlugins is called before the nib is loaded). -reloadData called on the tableView doesn't do anything. Is there a way to tell the NSArrayController that the referenced array has been updated? I understand there is the -add: method for NSArrayController, which could be used in the loadPlugins, but this isn't desirable as I want to keep the singleton totally separate from the display aspect. This seems related to: http://stackoverflow.com/questions/1623396/refresh-cocoa-binding-nsarraycontroller-combobox The line: "editing the array behind the controller's back" seems to perhaps pinpoint the problem, but I would hope that it would be possible to have the singleton not know about the controller. Thanks in advance.

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