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  • What would cause different rates of packet loss between client and server in UDP?

    - by febreezey
    If I've implemented a reliable UDP file transfer protocol and I have a file that deliberately drops a percentage of packets when I transmit, why would it be more evident that transmission time increases as the packet loss percentage increases going from the client to server as opposed from the server to the client? Is this something that can be explained as a result of the protocol? Here are my numbers from two separate experiments. I kept the max packet size to 500 Bytes and the opposite direction packet loss to 5% with a 1 Megabyte file: Server to Client loss Percentage varied: 1 MB file, 500 b segments, client to server loss 5% 1% : 17253 ms 3% : 3388 ms 5% : 7252 ms 10% : 6229 ms 11% : 12346 ms 13% : 11282 ms 15% : 9252 ms 20% : 11266 ms Client to Server loss percentage varied 1 MB file, 500 b segments, server to client loss 5% 1%: 4227 ms 3%: 4334 ms 5%: 3308 ms 10%: 31350 ms 11%: 36398 ms 13%: 48436 ms 15%: 65475 ms 20%: 120515 ms You can clearly see an exponential increase in the client to server group

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  • C#.NET Socket Programming: Connecting to remote computers.

    - by Gio Borje
    I have a typical server in my end and a friend using a client to connect to my IP/Port and he consistently receives the exception: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond {MY_IP}:{MY_PORT}"—You don't need to know my IP. The client and server, however, work fine on the loopback address (127.0.0.1). I also do not have any firewall nor is windows firewall active. Server: static void Main(string[] args) { Console.Title = "Socket Server"; Console.WriteLine("Listening for messages..."); Socket serverSock = new Socket( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress serverIP = IPAddress.Any; IPEndPoint serverEP = new IPEndPoint(serverIP, 33367); SocketPermission perm = new SocketPermission(NetworkAccess.Accept, TransportType.Tcp, "98.112.235.18", 33367); serverSock.Bind(serverEP); serverSock.Listen(10); while (true) { Socket connection = serverSock.Accept(); Byte[] serverBuffer = new Byte[8]; String message = String.Empty; while (connection.Available > 0) { int bytes = connection.Receive( serverBuffer, serverBuffer.Length, 0); message += Encoding.UTF8.GetString( serverBuffer, 0, bytes); } Console.WriteLine(message); connection.Close(); } } Client: static void Main(string[] args) { // Design the client a bit Console.Title = "Socket Client"; Console.Write("Enter the IP of the server: "); IPAddress clientIP = IPAddress.Parse(Console.ReadLine()); String message = String.Empty; while (true) { Console.Write("Enter the message to send: "); // The messsage to send message = Console.ReadLine(); IPEndPoint clientEP = new IPEndPoint(clientIP, 33367); // Setup the socket Socket clientSock = new Socket( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); // Attempt to establish a connection to the server Console.Write("Establishing connection to the server... "); try { clientSock.Connect(clientEP); // Send the message clientSock.Send(Encoding.UTF8.GetBytes(message)); clientSock.Shutdown(SocketShutdown.Both); clientSock.Close(); Console.Write("Message sent successfully.\n\n"); } catch (Exception ex) { Console.WriteLine(ex.Message); } } }

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  • SOA Suite Integration: Part 3: Loading files

    - by Anthony Shorten
    One of the most common scenarios in SOA Integration is the loading of a file into the product from an external source. In Oracle SOA Suite there is a File Adapter that can process many file types into your BPEL process. For this example I will use the File Adapter to load a file of user and emails to update the user object within the Oracle Utilities Application Framework. Remember you can repeat this process with other objects and other file types. Again I am illustrating the ease of integration. The first thing is to create an empty BPEL process that will hold our flow. In Oracle JDeveloper this can be achieved by specifying the Define Service Later template (as other templates have predefined inputs and outputs and in this case we want to specify those). So I will create simpleFileLoad process to house our process. You will start with an empty canvas so you need to first specify the load part of the process using the File Adapter. Select the File Adapter from the Component Palette under BPEL Services and drag and drop it to the left side Partner Links (left is input). You name the Service. In this case I chose LoadFile. Press Next. We will define the interface as part of the wizard so select Define from operation and schema (specified later). Press Next. We are going to choose Read File to denote that we will read the file and specify the default Operation Name as Read. Press Next. The next step is to tell the Adapter the location of the files, how to process them and what to do with them after they have been processed. I am using hardcoded locations in this example but you can have logical locations as well. Press Next. I am now going to tell the adapter how to recognize the files I want to load. In my case I am using CSV files and more importantly I am tell the adapter to run the process for each record in the file it encounters. Press Next. Now, I tell the adapter how often I want to poll for the files. I have taken the defaults. Press Next. At this stage I have no explanation of the format of the input. So I am going to invoke the Native Format Wizard which will guide me through the process of creating the file input format. Clicking the purple cog icon will start the wizard. After an introduction screen (not shown), you specify the format of the input file. The File Adapter supports multiple format types. For this example, I will use Delimited as I am going to load a CSV file. Press Next. The best way for the wizard to work is with a sample. I have a sample file and the wizard will ask how much of the file to use as a template. I will use the defaults. Note: If you are using a language that has other languages other than US-ASCII, it is at this point you specify the character set to use.  Press Next. The sample contains multiple instances of a single record type. The wizard supports complex types as well. We will use the appropriate setting for our file. Press Next. You have to specify the file element and the record element. This will be used by the input wizard to translate the CSV data into an XML structure (this will make sense later). I am using LoadUsers as my file delimiter (root element) and User Record as my record root element. Press Next. As the file is CSV the delimiter is "," so I will also specify that the End Of Line (EOL) indicator indicates the end of a record. Press Next. Up until this point your have not given the columns their names. In my case my sample includes the column names in the first record. This is not always the case but you can specify the names and formats of columns in this dialog (not shown). Press Next. The wizard now generates the schema for the input file. You can specify a name for the schema. I have used userupdate.xsd. We want to verify the schema so press Test. You can test the schema by specifying an input sample. and pressing the green play button. You will see the delimiters you specified earlier for the file and the records. Press Ok to continue. A confirmation screen will be displayed showing you the location of the schema in your project. Press Finish to return to the File Adapter configuration. You will now see the schema and elements prepopulated from the wizard. Press Next. The File Adapter configuration is now complete. Press Finish. Now you need to receive the input from the LoadFile component so we need to place a Receive node in the BPEL process by drag and dropping the Receive component from the Component Palette under BPEL Constructs onto the BPEL process. We link the receive process with the LoadFile component by dragging the left most connect node of the Receive node to the LoadFile component. Once the link is established you need to name the Receive node appropriately and as in the post of the last part of this series you need to generate input variables for the BPEL process to hold the input records in. You need to now add the product Web Service. The process is the same as described in the post of the last part of this series. You drop the Web Service BPEL Service onto the right side of the process and fill in the details of the WSDL URL . You also have to add an Invoke node to call the service and generate the input and outputs variables for the call in the Invoke node. Now, to get the inputs from File to the service. You have to use a Transform (you can use an Assign action but a Transform action is more flexible). You drag and drop the Transform component from the Component Palette under Oracle Extensions and place it between the Receive and Invoke nodes. We name the Transform Node, Mapper File and associate the source of the mapping the schema from the Receive node and the output will be the input variable from the Invoke node. We now build the transform. We first map the user and email attributes by drag and drop the elements from the left to the right. The reason we needed to use the transform is that we will be telling the AS-User service that we want to issue an update action. Remember when we registered the service we actually used Read as the default. If we do not otherwise inform the service to use the Update action it will use the Read action instead (which is not desired). To specify the update action you need to click on the transactionType node on the right and select Set Text to set the action. You need to specify the transactionType of UPD (for update). The mapping is now complete. The final BPEL process is ready for deployment. You then deploy the BPEL process to the server and to test the service by simply dropping a file, in the same pattern/name as you specified, in the directory you specified in the File Adapter. You will see each record as a separate instance entry in the Fusion Middleware Control console. You can now load files into the product. You can repeat this process for each type of file to process. While this was a simple example it illustrates the method of loading data can be achieved using SOA Suite in conjunction with our products.

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  • MEX issues using WCF Test Client over net.pipe

    - by Beaud.
    I'm trying to make use of WCF Test Client along with named pipes but I get the following error: Error: Cannot obtain Metadata from net.pipe://localhost/MyService Here's my web.config: <system.serviceModel> <services> <service name="MyNamespace.MyService" behaviorConfiguration="MEX"> <endpoint address="net.pipe://localhost/MyService" binding="netNamedPipeBinding" contract="MyNamespace.MyService.IMyService" /> <endpoint address="net.pipe://localhost/MEX" binding="mexNamedPipeBinding" contract="IMetadataExchange" /> </service> </services> <client> <endpoint address="net.pipe://localhost/MyService" binding="netNamedPipeBinding" contract="MyNamespace.MyService.IMyService" /> </client> <behaviors> <serviceBehaviors> <behavior name="MEX"> <serviceMetadata /> </behavior> </serviceBehaviors> </behaviors> What's wrong? I have tried both net.pipe://localhost/MyService and net.pipe://localhost/MEX. Any help would be appreciated, thanks!

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  • GetUserDefaultLocaleName() API is crashing

    - by Santhosha
    I have one application which reads user default locale in Windows Vista and above. When i tried calling the API for getting User default Locale API is crashing. Below is the code, It will be helpfull if any points the reason #include <iostream> #include <WinNls.h> #include <Windows.h> int main() { LPWSTR lpLocaleName=NULL; cout << "Calling GetUserDefaultLocaleName"; int ret = GetUserDefaultLocaleName(lpLocaleName, LOCALE_NAME_MAX_LENGTH); cout << lpLocaleName<<endl; }

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  • GWT - occasional com.google.gwt.user.client.rpc.SerializationException

    - by user214984
    Hello we are haunted by occasional occurences of exceptions such as: com.google.gwt.user.client.rpc.SerializationException: Type 'xxx' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.For security purposes, this type will not be serialized.: instance = xxx at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:610) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:129) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter$ValueWriter$8.write(ServerSerializationStreamWriter.java:152) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:534) at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:609) at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess(RPC.java:467) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:564) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:188) at de.softconex.travicemanager.server.TraviceManagerServiceImpl.processCall(TraviceManagerServiceImpl.java:615) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:224) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:419) at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:378) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508) at java.lang.Thread.run(Thread.java:619) The application is normally running fine. The indicated class implements Serializable (the whole object graph). So far the only patterns / observations are: we seem to have the issue only when the application is used inside an iframe the problem seems to happen when a new version of the application has been deployed running firefox in privacy mode (disabling all caches etc.) doesn't fix the problem Any ideas? Holger

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  • WCF tcp.net client/server connection failing "Stream Security is required"

    - by Tom W.
    I am trying to test a simple WCF tcp.net client/server app. The WCF service is being hosted on Windows 7 IIS. I have enabled TCP.net in IIS. I granted liberal security privileges to service app by configuring an app pool with admin rights and set the IIS service application to run in the context. I enabled tracing on the service app to troubleshoot. Whenever I run a simple method call against the service from the WCF client app, I get the following exception: "Stream Security is required at http://www.w3.org/2005/08/addressing/anonymous, but no security context was negotiated. This is likely caused by the remote endpoint missing a StreamSecurityBindingElement from its binding." Here is my client configuration: <bindings> <netTcpBinding> <binding name="InsecureTcp"> <security mode="None" /> </binding> </netTcpBinding> </bindings> Here is my service configuration: <bindings> <netTcpBinding> <binding name="InsecureTcp" > <security mode="None" /> </binding> </netTcpBinding> </bindings> <services> <service name="OrderService" behaviorConfiguration="debugServiceBehavior"> <endpoint address="" binding="netTcpBinding" bindingConfiguration="InsecureTcp" contract="ProtoBufWcfService.IOrder" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="debugServiceBehavior"> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> </serviceBehaviors> </behaviors>

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  • FaultException<T>() exception thrown by the service is not caught by the client catch(FaultException

    - by Ashish Gupta
    Ok, I know I am missing something here. I have the following operation contract: public double DivideByZero(int x, int y) { if (y == 0) { throw new FaultException<ArgumentException> (new ArgumentException("Just some dummy exception") ,new FaultReason("some very bogus reason"), new FaultCode("007")); } return x / y; } And following is taken from the client:- Console.WriteLine("Enter the x value"); string x = Console.ReadLine(); Console.WriteLine("Enter the Y value"); string y = Console.ReadLine(); try { double val = client.DivideByZero(Convert.ToInt32(x), Convert.ToInt32(y)); Console.WriteLine("The result is " + val.ToString()); } catch(FaultException<ArgumentException> exp) { Console.WriteLine("An ArgumentException was thrown by the service "+ exp.ToString()); } catch (Exception exp) { Console.WriteLine(exp.ToString()); } In the above case catch(FaultException exp) (the first catch block with ArgumentException in the client code) block does not get executed. However, when I remove ArgumentException to have catch(FaultException exp), the same catch block gets executed. I am not sure about this as I am throwing FaultException from my operation contract. Am I missing anything here. Appreciate your help, Ashish

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  • Upgrading EntLib 4.1 to 5 with Oracle.DataAccess.Client

    - by mlk
    Hello, I am upgrading a project from EntLib 4.1 to EntLib 5. I've skimmed through the Migration Guide, changed all the references and updated all the config files to point to EntLib 5. All worked fine accept Oracle database access. With the config file: <configuration> <configSections> <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> </configSections> <dataConfiguration defaultDatabase="prod"> <providerMappings> <add databaseType="Microsoft.Practices.EnterpriseLibrary.Data.Oracle.OracleDatabase, Microsoft.Practices.EnterpriseLibrary.Data" name="Oracle.DataAccess.Client" /> </providerMappings> </dataConfiguration> <connectionStrings> <add name="prod" connectionString="Data Source=dev;User Id=dev;Password=dev;" providerName="Oracle.DataAccess.Client" /> </connectionStrings> </configuration> which worked with 4.1 all calls to DatabaseFactory.CreateDatabase() fails with: System.InvalidOperationException: The type Database cannot be constructed. You must configure the container to supply this value. If I replace Oracle.DataAccess.Client with the Microsoft System.Data.Oracleclient it all works again, but is not full of ODP.net lovelyness. Does anyone know how to get this to work with EntLib 5? Cheers, Mlk

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  • Home automation using Arduino / XMPP client for Arduino

    - by Ashish
    I am trying to setup a system for automating certain tasks in my home. I am thinking of a solution wherein a server side application would be able to send/receive commands/data to Arduino (attached with Arduino Ethernet Shield) via the web. Here the Arduino may both act as a sensor interface to the server application or command executor interface for the server app. E.g. (user story): The overhead water tank in my house has a water level sensor attached with Arduino (attached with Arduino Ethernet Shield). Another Arduino (attached with Arduino Ethernet Shield) is attached with a relay/latch. This relay/latch is then connected to a water pump. Now the server side application on the web is able to get/receive water level information from the Arduino on the water tank. Depending on the water level information received, the web application should send suitable signals/commands to Arduino on water pump to switch 'ON' or switch 'OFF' the water pump. Now for such a system to work across the web, I am thinking of using one of the type of solutions in order of my priority: Using XMPP for communication between server application and Arduino. Using HTTP polling. Using HTTP hanging GET. For solution number 1, I need to implement a XMPP client that would reside on Arduino. Is it possible to write a XMPP client small enough to reside on an Arduino? If yes what are the minimum possible XMPP client functionality that I need to write for Arduino, so that it would be able to contact XMPP servers solutions like GTalk, etc.? For solution number 2 and 3 I need guidance in implementation. Also which solution would be cost effective and easily extendable?

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  • OpenCV 2.0 C++ API using imshow: returns unhandled exception and "bad-flag"

    - by Konrad
    I'm trying to use the new OpenCV 2.0 API in MS Visual C++ 2008 and wrote this simple program: cv::Mat img1 = cv::imread("image.jpg",1); cv::namedWindow("My Window", CV_WINDOW_AUTOSIZE); cv::imshow("My Window", img1); Visual Studio returnes an unhandled exception and the Console returns: OpenCV Error: bad flag (parameter or structure field) (Unrecognized or unsupported array type) in unknown function, file ..\..\..\..\ocv\opencv\src\cxcore\cxarray.cpp, line 2376 The image is not displayed. Furthermore the window "My Window" has a strange caption: "ÌÌÌÌMy Window", which is not dependent on the name. The "old" C API using commands like cvLoadImage, cvNamedWindow or cvShowImage works without any problem for the same image file. I tried a lot of different stuff without success. I appreciate any help here. Konrad

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  • Google Reader API HTTP Response parsing (Objective C)

    - by JustinXXVII
    Using the API, trying to get items in a specific feed returns this: {“direction”:”ltr”,”id”:”feed/http://arstechnica.com/index.rssx”,”title”:”Ars Technica”,”description”:”The Art of Technology”,”self”:[{"href":"http://www.google.com/reader/api/0/stream/contents/feed/http://arstechnica.com/index.rssx?ot\u003d1273193172856169\u0026r\u003dn\u0026xt\u003duser/-/state/com.google/read\u0026n\u003d4\u0026ck\u003d1273193873\u0026client\u003diPadReader"}],”alternate”:[{"href":"http://arstechnica.com/index.php","type":"text/html"}],”updated”:1273193873,”items”:[]} They look like key/value pairs but it’s plain text with UTF8 String encoding and won’t encode into a dictionary. I’m using Objective-C and I’m not sure where to go from here. So far I’ve been able to parse the XML response for unread items, but parsing the plain-text doesn’t look feasible. What is your practice?

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  • Getting Permissions error while using stream.publish method of facebook API

    - by tek3
    Hi I want to publsh a post on user's wall but am getting this "permission error" error code 200 when trying to use stream.publish method of facebook api...i hve requested for extended permissions as: http://m.facebook.com/login.php?api%5Fkey="+API_KEY&....&req_perms=read_stream,publish_stream,offline_access but when i make call to the method stream.publish i am getting this permission error..it seems that req_perms in above url is simply getting ignored.. i am passing "method(stream.publish)","api_key","message","session_key","v","sig" as parametres to url http://api.facebook.com/restserver.php? will be greatful if anyone helps meout in this problem or provide me with proper steps for publishing a post on user's wall...the application is being developed on blackbery platform..

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  • Generated signed X.509 client certificate is invalid (no certificate chain to its CA)

    - by Genady
    I use Bouncy Castle for generation of X.509 client certificates and sing them using a known CA. First I read the CA certificate from the certificate store, generate the client certificate, sign it using the CA. Validation of the certificate is failed doe to the following issue A certificate chain could not be built to a trusted root authority. As I understand this is due to the certificate not being related to the CA. Here is a code sample: public static X509Certificate2 GenerateCertificate(X509Certificate2 caCert, string certSubjectName) { // Generate Certificate var cerKp = kpgen.GenerateKeyPair(); var certName = new X509Name(true,certSubjectName); // subjectName = user var serialNo = BigInteger.ProbablePrime(120, new Random()); X509V3CertificateGenerator gen2 = new X509V3CertificateGenerator(); gen2.SetSerialNumber(serialNo); gen2.SetSubjectDN(certName); gen2.SetIssuerDN(new X509Name(true,caCert.Subject)); gen2.SetNotAfter(DateTime.Now.AddDays(100)); gen2.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0))); gen2.SetSignatureAlgorithm("SHA1WithRSA"); gen2.SetPublicKey(cerKp.Public); AsymmetricCipherKeyPair akp = DotNetUtilities.GetKeyPair(caCert.PrivateKey); Org.BouncyCastle.X509.X509Certificate newCert = gen2.Generate(caKp.Private); // used for getting a private key X509Certificate2 userCert = ConvertToWindows(newCert,cerKp); if (caCert22.Verify()) // works well for CA { if (userCert.Verify()) // fails for client certificate { return userCert; } } return null; } private static X509Certificate2 ConvertToWindows(Org.BouncyCastle.X509.X509Certificate newCert, AsymmetricCipherKeyPair kp) { string tempStorePwd = "abcd1234"; var tempStoreFile = new FileInfo(Path.GetTempFileName()); try { // store key { var newStore = new Pkcs12Store(); var certEntry = new X509CertificateEntry(newCert); newStore.SetCertificateEntry( newCert.SubjectDN.ToString(), certEntry ); newStore.SetKeyEntry( newCert.SubjectDN.ToString(), new AsymmetricKeyEntry(kp.Private), new[] { certEntry } ); using (var s = tempStoreFile.Create()) { newStore.Save( s, tempStorePwd.ToCharArray(), new SecureRandom(new CryptoApiRandomGenerator()) ); } } // reload key return new X509Certificate2(tempStoreFile.FullName, tempStorePwd); } finally { tempStoreFile.Delete(); } }

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  • Deleting blog post using Blogger API, Javascript and Prototype

    - by Mikhail
    Hello, everyone! I'm trying to delete a blog post on blogger.com using Blogger API via Prototype Javascript library. Here's my code: var request = new Ajax.Request( 'http://www.blogger.com/feeds/'+remoteBlogId+'/posts/default/'+postId { method:'DELETE', requestHeaders:['Authorization', 'GoogleLogin auth='+authKey], on200:function(){/*onSuccess*/}, onFailure:function(){/*onFailure*/} } ); As far as I can see from API description, everything's alright, but when I run this, it fires onSuccess function, but doesn't delete the entry on the server. I guess that Prototype doesn't work well with HTTP methods other than GET and POST (here's the ticket describing similar problem though proposed patch didn't work for me) Any help is appreciated! Thanks in advance, Mikhail.

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  • Error preverifying class NetBeans 6.8 using lwuit api

    - by Santiago
    I'm trying to develop a portable J2ME appli, but Netbeans do a class preverification of LWUIT library that uses optional APIs that some configurations don't have, so I get this error when I try to compile on a configuration without JRS-184 (M3G Optional API): Error preverifying class com.sun.lwuit.animations.Transition3D VERIFIER ERROR com/sun/lwuit/animations/Transition3D.initTransition()V: Cannot find class javax/microedition/m3g/Node I don't want to remove the classes from the LWUIT API because that classes works on other configurations compatibles with JRS-184 What I want is that NetBeans do not preverify the library, It is posible? Here are some code: //#ifdef JSR184 //# import com.sun.lwuit.animations.Transition3D; //#else import com.sun.lwuit.animations.CommonTransitions; //#endif Transition out; //#ifdef JSR184 //# out = Transition3D.createRotation(500, true); //#else out = CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, true, 500); //#endif setTransitionOutAnimator(out); Thanks

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  • Access Products/Category/Attribute Info from php with Magento API

    - by Jason
    Need to be able to pull Magento products into an external template. Need to be able to get all products data (description, title, attributes, categories, image, etc). And need to be able to filter by category, attribute and also search on name. These calls will be made from the same server that the Magento install is on. What's the best way to do this? Will be using php on both linux & windows (2 separate sites). Have tried using the Magento API & Soap to access from php but haven't been able to get that to work yet. All I get is this error every time. Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://mymagento.com/cart/index.php/api/?wsdl' : Extra content at the end of the document in.....

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  • Using the PayPal API in an iPhone application

    - by jaynaiphone
    Hello I want to use Paypal in my iphone application, I have find the soapRequest to integrating the paypal API. My code is NSString *soapMessage = [NSString stringWithFormat: @"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" "<SOAP-ENV:Envelope xmlns:xsi= \"http://www.w3.org/2001/XMLSchema-instance\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n" "<SOAP-ENV:Header>\n" "<RequesterCredentials xmlns=\"urn:ebay:api:PayPalAPI\">\n" "<Credentials xmlns=\"urn:ebay:apis:eBLBaseComponents\">\n" "<Username>api_username</Username>\n" "<Password>api_password</Password>\n" "<Signature/>\n" "<Subject/>\n" "</Credentials>\n" "</RequesterCredentials>\n" "</SOAP-ENV:Header>\n" "<SOAP-ENV:Body>\n" "<specific_api_name_Req xmlns=\"urn:ebay:api:PayPalAPI\">\n" "<specific_api_name_Request>\n" "<Version xmlns=urn:ebay:apis:eBLBaseComponents”>service_version</Version>\n" "<required_or_optional_fields xsi:type=”some_type_here”>\n" "</required_or_optional_fields>\n" "</specific_api_name_Request>\n" "</specific_api_name_Req>\n" "</SOAP-ENV:Body>\n" "</SOAP-ENV:Envelope>\n"]; NSLog(@"Soap message===%@",soapMessage); NSString *parameterString = [NSString stringWithFormat:@"USER=%@&PWD=%@&SIGNATURE=%@&VERSION=57.0&METHOD=SetMobileCheckout&AMT=%.2f&CURRENCYCODE=USD&DESC=%@&RETURNURL=%@", userName, password, signature, donationAmount, @"Some Charge", returnCallURL]; NSLog(parameterString); NSURL *url = [NSURL URLWithString:paypalUrlNVP]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url]; NSString *msgLength = [NSString stringWithFormat:@"%d", [parameterString length]]; [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setHTTPBody: [parameterString dataUsingEncoding:NSUTF8StringEncoding]]; NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if( theConnection ){ webData = [[NSMutableData data] retain]; // [self displayConnectingView]; }else{ NSLog(@"theConnection is NULL"); } But here I am not getting the value of paypalUrlNVP. How can i get it?? And if possible then please give some example of paypalAPI integration in iphone. I also want to use checkout functionality.I am new in this field so I have no idea about it. So, kindly give me whole sample code. Thanks in advance.

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  • shell_exec escaping quotes in php for Twitter API

    - by yc10
    I'm (lazily) using shell_exec() to execute a Twitter API Call. shell_exec('curl -u user:password -d "id=3191321" http://api.twitter.com/1/twitterapi/twitterlist/members.xml'); That works fine when I authenticate correctly and put in a number for the id. But when I try to put in a variable ($id), it screws up. $addtolist = shell_exec('curl -u pxlist:Weekend1 -d "id='.$id.'" http://twitter.com/username/twitterlist/members.xml'); I tried flipping the quote types $addtolist = shell_exec("curl -u pxlist:Weekend1 -d 'id=$id' http://twitter.com/username/twitterlist/members.xml"); I tried using double quotes and escaping them $addtolist = shell_exec("curl -u pxlist:Weekend1 -d \"id=$id\" http://twitter.com/username/twitterlist/members.xml"); None of them worked. What am I doing wrong?

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  • How to access/use custom attribute in spring security based CAS client

    - by Bill Li
    I need send certain attributes(say, human readable user name) from server to client after a successful authentication. Server part was done. Now attribute was sent to client. From log, I can see: 2010-03-28 23:48:56,669 DEBUG Cas20ServiceTicketValidator:185 - Server response: [email protected] <cas:proxyGrantingTicket>PGTIOU-1-QZgcN61oAZcunsC9aKxj-cas</cas:proxyGrantingTicket> <cas:attributes> <cas:FullName>Test account 1</cas:FullName> </cas:attributes> </cas:authenticationSuccess> </cas:serviceResponse> Yet, I don't know how to access the attribute in client(I am using Spring security 2.0.5). In authenticationProvider, a userDetailsService is configured to read db for authenticated principal. <bean id="casAuthenticationProvider" class="org.springframework.security.providers.cas.CasAuthenticationProvider"> <sec:custom-authentication-provider /> <property name="userDetailsService" ref="clerkManager"/> <!-- other stuff goes here --> </bean> Now in my controller, I can easily do this: Clerk currentClerk = (Clerk)SecurityContextHolder.getContext().getAuthentication().getPrincipal(); Ideally, I can fill the attribute to this Clerk object as another property in some way. How to do this? Or what is recommended approach to share attributes across all apps under CAS's centralized nature?

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  • Client WCF DataContract has empty/null values from service

    - by Matt
    I have a simple WCF service that returns the time from the server. I've confirmed that data is being sent by checking with Fiddler. Here's the result object xml that my service sends. <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"> <s:Body> <GetTimeResponse xmlns="http://tempuri.org/"> <GetTimeResult xmlns:a="http://schemas.datacontract.org/2004/07/TestService.DataObjects" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"> <a:theTime>2010-03-26T09:14:38.066372-06:00</a:theTime> </GetTimeResult> </GetTimeResponse> </s:Body> </s:Envelope> So, as far as I can tell, there's nothing wrong on the server end. It's receiving requests and returning results. But on my silverlight client, all the members of the returned object are either null, blank or a default vaule. As you can see the server returns the current date and time. But in silverlight, theTime property on my object is set to 1/1/0001 12:00 AM (default value). Sooo methinks that the DataContracts do not match up between the server and the silverlight client. Here's the DataContract for the server [DataContract] public class Time { [DataMember] public DateTime theTime { get; set; } } Incredibly simple. And here's the datacontract on my silverlight client. [DataContract] public class Time { [DataMember] public DateTime theTime { get; set; } } Literally the only difference is the namespaces within the application. But still the values being returned are null, empty or a .NET default. Thanks for you help!

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  • REST api ambiguity and WADL

    - by JDonner
    I have a REST api that's ambiguous, something like (this isn't the specific problem, just gives an idea of the ambiguity): /toplevel/${customer_number}/some_command/more stuff /toplevel/${customer_number}/${some_product_name_anything_goes}/more stuff We've been getting away with it because our .htaccess file lists the more specific 'command' form before the general ${product_name} version, and the first match wins. Now though, we're writing a WADL, and, as you might expect, we're having trouble with our chosen tool consuming the WADL, because the API is ambiguous. My questions are: a) Does the WADL spec speak to whether they can validly represent ambiguous APIs? b) Tool support - in your experience, do tools choke on ambiguous WADLs? (if ambi. WADLs are allowed then those are weak tools but, you'd want to be on the safe side) c) Just any experience with ambiguous REST apis, most especially wrt WADLs, really. For the curious, here's the latest spec: As far as I can tell it doesn't specifically address this, I guess it really comes down to how tools handle it. Thanks.

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  • VMWare Network bug in multiple VMWare Workstation versions if using a hardcoded IP address

    - by onyxruby
    I'm having a very tricky problem with some of my VM sessions being unable to reach the Internet or even ping the gateway. I have just set up a new VM Workstation (7) on a W2K8 64bit server (I'll be converting to ESXI 4 once I can find a decent book on it, so for the meanwhile I use workstation). I have imported a number of VM's and setup some new ones on the server.In short the problem with some of the VM's being unable to reach the Internet is that they can't reach the gateway. I've looking at a number of things and can pretty safely rule out the following: Switch, Router, DHCP Server, DNS, Client IP configuration, Routes and typos. The problem is that some of the new clients cannot reach the gateway if their IP address is hardcoded, they can't even ping it by IP address. That rules out DNS and DHCP. Now, if I allow them to get their IP address by DHCP they can reach the gateway and Internet without issue. The interesting thing on this, is that this behavior occurs even if I leave the DNS information hardcoded under TCP/IP settings. It doesn't work unless the IP and gateway are handed out by DHCP even though the same information IP info is being used by the host. Fundamentally from the standpoint of the clients, they are trying to reach the exact same gateway using the exact same IP information regardless of whether they are hardcoded or assigned by DHCP. Here's an example of one client. IP Address 192.168.7.66 - Subnet Mask 255.255.255.0 - Gateway 192.168.7.254 - DNS1 192.168.7.44 - DNS2 192.168.7.254. The issue occurs across six different microsoft operating systems, Windows 7 and Windows 2008 variants all have the issue. My W2K3, XP, Vista and W98 clients all work without issue with hardcoded IP addresses. I have tried things like rearranging the DNS order, flushing DNS and so on. It's not a routing or switch issue as the clients can work just fine if they get their IP by DHCP. It's not a paramater issue as the exact same paramaters are handed out by DHCP as I plug in by hand. It's not a DNS issue as clients cant reach other clients even with IP addresses only. I have run a tracert to the gateway by IP address and it times out on the very first hop before failing on hop3 with destination host unreachable. If I get the IP address by DHCP the tracert finds the gateway (and Internet) without issue. I have read a few other posts online in forums talking about this problem randomly occuring over the years in other VM versions as well, so I suspect some kind of long standing bug. Does anyone have any ideas on this? Is it possibly a bug with Windows 7 and W2K clients under VM?

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  • Microsoft Sync Framework with Mutliple Client and Server Database

    - by David Osborn
    I'm working on changes to an application to have a local data store instead of connecting directly to the database server. The client app will then sync changes both ways between the server database and its local data store. I'm trying to implement the syncing solution using Microsoft Sync Framework. To be clear there is no server application, only the database server, but there are multiple clients. I have started implementing two classes that implement FullEnumerationSimpleSyncProvider, one called LocalSyncProvider and one called ServerSyncProvider. The LocalSyncProvider knows how to enumerate, insert, update, delete items from the local data store, and the ServerSyncProvider knows how to enumerate, insert, update, delete items from the database server. They each use the provided SqlMetadataStore and store the two metadata stores (one for the local and one for the server) on the local drive of the client. This means that each client will have its own metadata store for its local data store and its own metadata store for the server database. Is this actually going to work, does there need to exists only one server metadata store, or do I need to be using the Sync Framework differently?

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