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• DotNetOpenAuth OpenID Provider "Sequence contains more than one element"

  - by Matthew Johnson

  Hello, all, I'm having trouble implementing my OpenID provider with DNOA 3.4.3. Everything was going absolutely peachy until I needed AX support as well. I set AXFetchAsSregTransform in the web config, as recommended by Andrew at http://groups.google.com/group/dotnetopenid/browse_thread/thread/5629a24c0a7e8d99. Doing this caused me to get the exception "Sequence Contains More Than One Element" on my decide.aspx page, however, and I haven't been able to get past it. The following line is throwing the exception: Edit: Strangely enough, this is not the line throwing the error anymore. The SendResponse() is now triggering the exception ClaimsRequest requestedFields = ProviderEndpoint.PendingRequest.GetExtension(); ProviderEndpoint.SendResponse() Any thoughts on why this may be? Any help would be greatly appreciated! The logs leading up to the error are as follows: 2010-04-28 12:38:20,247 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/provider.ashx?openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.mode=checkid_setup&openid.ns.ext1=http%3A%2F%2Fopenid.net%2Fsrv%2Fax%2F1.0&openid.ext1.mode=fetch_request&openid.ext1.type.email=http%3A%2F%2Faxschema.org%2Fcontact%2Femail&openid.ext1.type.fullname=http%3A%2F%2Faxschema.org%2FnamePerson&openid.ext1.type.language=http%3A%2F%2Faxschema.org%2Fpref%2Flanguage&openid.ext1.required=email&openid.return_to=http%3A%2F%2Fmyrelyingparty%2Flogin.jsp%3Foidreturn%3D%252Fhome&openid.assoc_handle=%7B634080802953194640%7D%7BHxjFNw==%7D%7B20%7D&openid.realm=http%3A%2F%2Fmyrelyingparty 2010-04-28 12:38:20,285 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Processing incoming CheckIdRequest (2.0) message: openid.claimed_id: http://specs.openid.net/auth/2.0/identifier_select openid.identity: http://specs.openid.net/auth/2.0/identifier_select openid.assoc_handle: {634080802953194640}{HxjFNw==}{20} openid.return_to: http://myrelyingparty/login.jsp?oidreturn=%2Fhome openid.realm: http://myrelyingparty/ openid.mode: checkid_setup openid.ns: http://specs.openid.net/auth/2.0 openid.ns.ext1: http://openid.net/srv/ax/1.0 openid.ext1.mode: fetch_request openid.ext1.type.email: http://axschema.org/contact/email openid.ext1.type.fullname: http://axschema.org/namePerson openid.ext1.type.language: http://axschema.org/pref/language openid.ext1.required: email 2010-04-28 12:38:22,773 (GMT-7) [14] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/login.aspx?ReturnUrl=%2fdecide.aspx 2010-04-28 12:38:36,167 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/login.aspx?ReturnUrl=%2fdecide.aspx 2010-04-28 12:38:38,147 (GMT-7) [14] ERROR DotNetOpenAuth.Messaging - Protocol error: An HTTP request to the realm URL (http://myrelyingparty/) resulted in a redirect, which is not allowed during relying party discovery. at DotNetOpenAuth.Messaging.ErrorUtilities.VerifyProtocol(Boolean condition, String message, Object[] args) at DotNetOpenAuth.OpenId.Realm.Discover(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) at DotNetOpenAuth.OpenId.Realm.DiscoverReturnToEndpoints(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverableCore(OpenIdProvider provider) at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverable(OpenIdProvider provider) at OpenIdProviderWebForms.decide.Page_Load(Object src, EventArgs e) at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.decide_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) at System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error) at System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb) at System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) 2010-04-28 12:38:38,149 (GMT-7) [14] INFO DotNetOpenAuth.Yadis - Relying party discovery at URL http://myrelyingparty/ failed. DotNetOpenAuth.Messaging.ProtocolException: An HTTP request to the realm URL (http://myrelyingparty/) resulted in a redirect, which is not allowed during relying party discovery. at DotNetOpenAuth.Messaging.ErrorUtilities.VerifyProtocol(Boolean condition, String message, Object[] args) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\Messaging\ErrorUtilities.cs:line 235 at DotNetOpenAuth.OpenId.Realm.Discover(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Realm.cs:line 446 at DotNetOpenAuth.OpenId.Realm.DiscoverReturnToEndpoints(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Realm.cs:line 424 at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverableCore(OpenIdProvider provider) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\HostProcessedRequest.cs:line 142 2010-04-28 12:38:42,076 (GMT-7) [8] ERROR OpenIdProviderWebForms.Global - An unhandled exception was raised. Details follow: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. --- System.InvalidOperationException: Sequence contains more than one element at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) at DotNetOpenAuth.OpenId.Provider.Request.GetExtension[T]() in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\Request.cs:line 176 at DotNetOpenAuth.OpenId.Extensions.ExtensionsInteropHelper.ConvertSregToMatchRequest(IHostProcessedRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Extensions\ExtensionsInteropHelper.cs:line 180 at DotNetOpenAuth.OpenId.Behaviors.AXFetchAsSregTransform.DotNetOpenAuth.OpenId.Provider.IProviderBehavior.OnOutgoingResponse(IAuthenticationRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Behaviors\AXFetchAsSregTransform.cs:line 139 at DotNetOpenAuth.OpenId.Provider.OpenIdProvider.ApplyBehaviorsToResponse(IRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\OpenIdProvider.cs:line 482 at DotNetOpenAuth.OpenId.Provider.OpenIdProvider.SendResponse(IRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\OpenIdProvider.cs:line 325 at OpenIdProviderWebForms.decide.Yes_Click(Object sender, EventArgs e) in C:\Projects\OpenIdProviderWebForms\decide.aspx.cs:line 130 at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.decide_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\7f580b93\b3e4d917\App_Web_tulh9ymv.1.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

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• How to use Nexus groups with Hudson to deploy artifacts post-build?

  - by John

  Hi there. I'm currently setting up Hudson to push artifacts to my Nexus repository upon succesful builds. Unfortunately I am having some trouble with getting Hudson to deploy using Nexus groups. I have two groups, upbeat.nexus (private) and public.nexus (public). I've set up the associated repositories in Nexus already. Here's my settings.xml: <settings> <mirrors> <mirror> <id>upbeat.nexus</id> <mirrorOf>*</mirrorOf> <url>http://localhost:8099/nexus/content/groups/upbeat</url> </mirror> <mirror> <id>public.nexus</id> <mirrorOf>*</mirrorOf> <url>http://localhost:8099/nexus/content/groups/public</url> </mirror> </mirrors> <profiles> <profile> <id>upbeat.nexus</id> <repositories> <repository> <id>upbeat.central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </repository> </repositories> </profile> <profile> <id>public.nexus</id> <repositories> <repository> <id>public.central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </repository> </repositories> </profile> </profiles> <servers> <server> <id>upbeat.nexus</id> <username>build</username> <password></password> </server> <server> <id>public.nexus</id> <username>build</username> <password></password> </server> </servers> <activeProfiles> <activeProfile>upbeat.nexus</activeProfile> <activeProfile>public.nexus</activeProfile> </activeProfiles> In Hudson, when setting the "Deploy artifacts to Maven repository", I need to specify the repository URL and the repository ID. I've set the repository ID to "public.nexus" but if I set the URL to http://forge.upbeat.no/nexus/content/repositories/public and the ID to public.nexus I get the following error: Deploying artifacts to http://forge.upbeat.no/nexus/content/repositories/public Deploying the main artifact pom.xml [INFO ] Retrieving previous build number from public.nexus [INFO ] repository metadata for: 'snapshot com.upbeat.appl:skuldweb:1.0-SNAPSHOT' could not be found on repository: public.nexus, so will be created ERROR: Error deploying artifact: Failed to transfer file: http://forge.upbeat.no/nexus/content/repositories/public/com/upbeat/appl/skuldweb/1.0-SNAPSHOT/skuldweb-1.0-SNAPSHOT.pom. Return code is: 400 org.apache.maven.artifact.deployer.ArtifactDeploymentException: Error deploying artifact: Failed to transfer file: http://forge.upbeat.no/nexus/content/repositories/public/com/upbeat/appl/skuldweb/1.0-SNAPSHOT/skuldweb-1.0-SNAPSHOT.pom. Return code is: 400 at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:94) at hudson.maven.reporters.MavenArtifactRecord.deploy(MavenArtifactRecord.java:119) at hudson.maven.reporters.MavenAggregatedArtifactRecord.deploy(MavenAggregatedArtifactRecord.java:79) at hudson.maven.RedeployPublisher.perform(RedeployPublisher.java:109) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:601) at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:580) at hudson.maven.MavenModuleSetBuild$RunnerImpl.post2(MavenModuleSetBuild.java:598) at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:528) at hudson.model.Run.run(Run.java:1264) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:306) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:124) Caused by: org.apache.maven.wagon.TransferFailedException: Failed to transfer file: http://forge.upbeat.no/nexus/content/repositories/public/com/upbeat/appl/skuldweb/1.0-SNAPSHOT/skuldweb-1.0-SNAPSHOT.pom. Return code is: 400 at org.apache.maven.wagon.providers.http.LightweightHttpWagon.put(LightweightHttpWagon.java:172) at org.apache.maven.artifact.manager.DefaultWagonManager.putRemoteFile(DefaultWagonManager.java:244) at org.apache.maven.artifact.manager.DefaultWagonManager.putArtifact(DefaultWagonManager.java:160) at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:80) ... 12 more Finished: FAILURE Any tips on how to deploy to a group so I don't have to specify (in Hudson) whether or not I am building a snapshot or a release version, and instead have it look at the version-tag in the pom to automatically place the artifact in the correct repository?

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• XSL testing empty strings with <xsl:if> and sorting

  - by AdRock

  I am having trouble with a template that has to check 3 different nodes and if they are not empty, print the data I am using for each node then doing the output but it is not printing anything. It is like the test returns zero. I have selected the parent node of each node i want to check the length on as the template match but it still doesn't work. Another thing, how do i sort the list using . I tried using this but i get an error about loading the stylesheet. If i take out the sort it works <xsl:template match="folktask/member"> <xsl:if test="user/account/userlevel='3'"> <xsl:sort select="festival/event/datefrom"/> <div class="userdiv"> <xsl:apply-templates select="user"/> <xsl:apply-templates select="festival"/> </div> </xsl:if> </xsl:template> <xsl:template match="festival"> <xsl:apply-templates select="contact"/> </xsl:template> This should hopefully finish all my stylesheets. This is the template I am calling <xsl:template match="contact"> <xsl:if test="string-length(contelephone)!=0"> <div class="small bold">TELEPHONE:</div> <div class="large"> <xsl:value-of select="contelephone/." /> </div> </xsl:if> <xsl:if test="string-length(conmobile)!=0"> <div class="small bold">MOBILE:</div> <div class="large"> <xsl:value-of select="conmobile/." /> </div> </xsl:if> <xsl:if test="string-length(fax)!=0"> <div class="small bold">FAX:</div> <div class="large"> <xsl:value-of select="fax/." /> </div> </xsl:if> </xsl:template> and a section of my xml. If you need me to edit my post so you can see the full code i will but the rest works fine. <folktask> <member> <user id="4"> <personal> <name>Connor Lawson</name> <sex>Male</sex> <address1>12 Ash Way</address1> <address2></address2> <city>Swindon</city> <county>Wiltshire</county> <postcode>SN3 6GS</postcode> <telephone>01791928119</telephone> <mobile>07338695664</mobile> <email>[email protected]</email> </personal> <account> <username>iTuneStinker</username> <password>3a1f5fda21a07bfff20c41272bae7192</password> <userlevel>3</userlevel> <signupdate>2010-03-26T09:23:50</signupdate> </account> </user> <festival id="1"> <event> <eventname>Oxford Folk Festival</eventname> <url>http://www.oxfordfolkfestival.com/</url> <datefrom>2010-04-07</datefrom> <dateto>2010-04-09</dateto> <location>Oxford</location> <eventpostcode>OX1 9BE</eventpostcode> <coords> <lat>51.735640</lat> <lng>-1.276136</lng> </coords> </event> <contact> <conname>Stuart Vincent</conname> <conaddress1>P.O. Box 642</conaddress1> <conaddress2></conaddress2> <concity>Oxford</concity> <concounty>Bedfordshire</concounty> <conpostcode>OX1 3BY</conpostcode> <contelephone>01865 79073</contelephone> <conmobile></conmobile> <fax></fax> <conemail>[email protected]</conemail> </contact> </festival> </member> </folktask>

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• Using AES encryption in .NET - CryptographicException saying the padding is invalid and cannot be removed

  - by Jake Petroules

  I wrote some AES encryption code in C# and I am having trouble getting it to encrypt and decrypt properly. If I enter "test" as the passphrase and "This data must be kept secret from everyone!" I receive the following exception: System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed. at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast) at System.Security.Cryptography.RijndaelManagedTransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) at System.Security.Cryptography.CryptoStream.FlushFinalBlock() at System.Security.Cryptography.CryptoStream.Dispose(Boolean disposing) at System.IO.Stream.Close() at System.IO.Stream.Dispose() ... And if I enter something less than 16 characters I get no output. I believe I need some special handling in the encryption since AES is a block cipher, but I'm not sure exactly what that is, and I wasn't able to find any examples on the web showing how. Here is my code: using System; using System.IO; using System.Security.Cryptography; using System.Text; public static class DatabaseCrypto { public static EncryptedData Encrypt(string password, string data) { return DatabaseCrypto.Transform(true, password, data, null, null) as EncryptedData; } public static string Decrypt(string password, EncryptedData data) { return DatabaseCrypto.Transform(false, password, data.DataString, data.SaltString, data.MACString) as string; } private static object Transform(bool encrypt, string password, string data, string saltString, string macString) { using (AesManaged aes = new AesManaged()) { aes.Mode = CipherMode.CBC; aes.Padding = PaddingMode.PKCS7; int key_len = aes.KeySize / 8; int iv_len = aes.BlockSize / 8; const int salt_size = 8; const int iterations = 8192; byte[] salt = encrypt ? new Rfc2898DeriveBytes(string.Empty, salt_size).Salt : Convert.FromBase64String(saltString); byte[] bc_key = new Rfc2898DeriveBytes("BLK" + password, salt, iterations).GetBytes(key_len); byte[] iv = new Rfc2898DeriveBytes("IV" + password, salt, iterations).GetBytes(iv_len); byte[] mac_key = new Rfc2898DeriveBytes("MAC" + password, salt, iterations).GetBytes(16); aes.Key = bc_key; aes.IV = iv; byte[] rawData = encrypt ? Encoding.UTF8.GetBytes(data) : Convert.FromBase64String(data); using (ICryptoTransform transform = encrypt ? aes.CreateEncryptor() : aes.CreateDecryptor()) using (MemoryStream memoryStream = encrypt ? new MemoryStream() : new MemoryStream(rawData)) using (CryptoStream cryptoStream = new CryptoStream(memoryStream, transform, encrypt ? CryptoStreamMode.Write : CryptoStreamMode.Read)) { if (encrypt) { cryptoStream.Write(rawData, 0, rawData.Length); return new EncryptedData(salt, mac_key, memoryStream.ToArray()); } else { byte[] originalData = new byte[rawData.Length]; int count = cryptoStream.Read(originalData, 0, originalData.Length); return Encoding.UTF8.GetString(originalData, 0, count); } } } } } public class EncryptedData { public EncryptedData() { } public EncryptedData(byte[] salt, byte[] mac, byte[] data) { this.Salt = salt; this.MAC = mac; this.Data = data; } public EncryptedData(string salt, string mac, string data) { this.SaltString = salt; this.MACString = mac; this.DataString = data; } public byte[] Salt { get; set; } public string SaltString { get { return Convert.ToBase64String(this.Salt); } set { this.Salt = Convert.FromBase64String(value); } } public byte[] MAC { get; set; } public string MACString { get { return Convert.ToBase64String(this.MAC); } set { this.MAC = Convert.FromBase64String(value); } } public byte[] Data { get; set; } public string DataString { get { return Convert.ToBase64String(this.Data); } set { this.Data = Convert.FromBase64String(value); } } } static void ReadTest() { Console.WriteLine("Enter password: "); string password = Console.ReadLine(); using (StreamReader reader = new StreamReader("aes.cs.txt")) { EncryptedData enc = new EncryptedData(); enc.SaltString = reader.ReadLine(); enc.MACString = reader.ReadLine(); enc.DataString = reader.ReadLine(); Console.WriteLine("The decrypted data was: " + DatabaseCrypto.Decrypt(password, enc)); } } static void WriteTest() { Console.WriteLine("Enter data: "); string data = Console.ReadLine(); Console.WriteLine("Enter password: "); string password = Console.ReadLine(); EncryptedData enc = DatabaseCrypto.Encrypt(password, data); using (StreamWriter stream = new StreamWriter("aes.cs.txt")) { stream.WriteLine(enc.SaltString); stream.WriteLine(enc.MACString); stream.WriteLine(enc.DataString); Console.WriteLine("The encrypted data was: " + enc.DataString); } }

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• Cannot connect to one of my WCF services, not even with telnet

  - by Ecyrb

  I have six wcf services that I'm hosting in a windows service. Everything works great on my machine (Windows 7) but when I try it in production (Windows Server 2003) I cannot connect to one of my six services, ReportsService. I figured I must have a typo, but everything looks right. I've even rewritten that section of the config file just to be sure. I've turned on WCF tracing, but it never shows the call to my service; nothing helpful in there. I tried connecting to the port (9005) with telnet, but it failed. I can connect to all other services (ports 9001-4 and 9006) just fine. I thought that maybe there was a problem with port 9005, so I changed it to 9007 and still couldn't connect. I had one of my working services host on 9005 and it actually worked fine. So I'm pretty sure there's nothing wrong with the port or any firewall settings. Whatever port I tell ReportsService to use fails. Now I'm out of ideas. It seems like it's not hosting that one service, but I cannot get any information about why or what's wrong. Any ideas on what I could try to get that information? Or what might be wrong? The unhandled System.ServiceModel.EndpointNotFoundException I get when running my client is: Could not connect to net.tcp://localhost:9005/ReportsService. The connection attempt lasted for a time span of 00:00:01.0937430. TCP error code 10061: No connection could be made because the target machine actively refused it 172.0.0.1:9005. . My host's config file contains: <!-- Snipped other services to simplify for you. --> <endpoint binding="netTcpBinding" bindingConfiguration="customTcpBinding" contract="ServiceContracts.IReportsService" /> <endpoint binding="netTcpBinding" bindingConfiguration="customTcpBinding" contract="ServiceContracts.IUpdateData" /> IReportService is the one I'm having trouble with. I get a proxy to IReportsService with the following code, where Server is the name of the hosting machine: return new ChannelFactory<IReportsService>("").CreateChannel(new EndpointAddress(string.Format("net.tcp://{0}:9005/ReportsService", Server))); My client config file contains: <system.serviceModel> <bindings> <netTcpBinding> <binding name="customTcpBinding" maxReceivedMessageSize="2147483647"> <readerQuotas maxNameTableCharCount="2147483647" maxStringContentLength="2147483647"/> <security mode="None"/> </binding> </netTcpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="ServiceBehavior"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="True" /> <serviceThrottling maxConcurrentCalls="30" maxConcurrentInstances="30" maxConcurrentSessions="1000" /> </behavior> </serviceBehaviors> </behaviors> <services> <!-- Snipped other services to simplify for you. --> <service behaviorConfiguration="ServiceBehavior" name="WcfService.ReportsService"> <endpoint address="ReportsService" binding="netTcpBinding" bindingConfiguration="customTcpBinding" contract="ServiceContracts.IReportsService" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:9005" /> </baseAddresses> </host> </service> <service behaviorConfiguration="ServiceBehavior" name="WcfService.UpdateData"> <endpoint address="UpdateData" binding="netTcpBinding" bindingConfiguration="customTcpBinding" contract="ServiceContracts.IUpdateData" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:9006" /> </baseAddresses> </host> </service> </services> </system.serviceModel> I've tried to keep things simple with the code snippets above, but if you would like to see more just ask and I'd be happy to provide anything that'll help.

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• JPA Entity (in multiple persistence-unit) in OSGi (Spring DM) Environnement is confusing me.

  - by Vincent Demeester

  Hi, I'm a bit confused about a strange behavior of my JPA's related objects. I have three bundle : The User bundle does contain some user-related objects, but mainly the User object. The Energy bundle does contain some energy-related objects, and particularly a ConsumptionTerminal which contains a List of User. The Index bundle does contain an Index object that has no dependency at all. My OSGi environment is the following : A DataSource bundle that provide 2 services : dataSource and jpaVendorAdapter. The three bundles. They consume dataSource and jpaVendorAdapter. Their module-context.xml file look like : And they all have a persistence.xml file : User <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="securityPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Energy <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="energyPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <class>net.nextep.amundsen.energy.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Index : This one has the most simple persistence.xml with just the Index class (no shared Class). I'm using named @PersistenceUnit annotation like @PersitenceUnit(name = 'securityPU') (for the User bundle). And finally, I'm using EclipseLink as Jpa provider and Spring DM (+ Spring DM Server in the development process) The problem is the following : When the User bundle is deployed, I'm able to persist User objects. When the User bundle and Energy bundles are both deployed, I'm not able to persist User objects (neither the Energy object). But I don't have any exception at all ! There is no problem at all with the Index bundle. The bug is dataSource independent (I tried with PostgreSQL and MySQL so far). My first conclusion was that the <class>net.nextep.amundsen.security.domain.User</class> in both persistence unit was causing the trouble. I tried without it (and hiding the User dependent object in the Energy bundle) but it failed too. I'm a bit confused about that bug. I'm also not quite sure about the transaction management in this context. I wasn't the one who designed this architecture (but I tell my intern OK without testing it.. shame on me) but if I could understand this bug and maybe fix it without rewrite the bundle (and break my intern work), I would appreciate. Am I doing something wrong ? (it's obvious, but what..) Did I miss something while reading documentation ? By the way, I'm also looking for some best practices or advices when it comes to JPA, EclipseLink (or whatever JPA Provider) and Spring DM (and OSGi in general). I found interesting slides from Mike Keith about this topic (by browsing Stackoverflow).

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• ASP.NET MVC 2 UpdateModel() is not updating values in memory or database

  - by campbelt

  Hello, I am new to MVC, and so am working through the NerdDinner tutorial, here. In particular, I'm running into problems with the use of the UpdateModel method, which is explained in the part five of that tutorial. The problem is, when I try to edit the value of a dinner object using the UpdateModel method, the values do not get updated, and no exceptions are thrown. Oddly, I am not having any trouble with the Create or Delete features that are illustrated in the tutorial. Only the update feature isn't working. Below, I have included the Controller code that I am using, as well as the view markup, which is contained in both an aspx View file and an ascx Partial View file. Here is the code inside my Controller, called DinnerController.cs: // // GET: /Dinners/Edit/2 [Authorize] public ActionResult Edit(int id) { Dinner dinner = dinnerRepository.GetDinner(id); return View(new DinnerFormViewModel(dinner)); } // // POST: /Dinners/Edit/2 [AcceptVerbs(HttpVerbs.Post), Authorize] public ActionResult Edit(int id, FormCollection formValues) { Dinner dinner = dinnerRepository.GetDinner(id); try { UpdateModel(dinner); var x = ViewData.GetModelStateErrors(); // <-- to catch other ModelState errors dinnerRepository.Save(); return RedirectToAction("Details", new { id = dinner.DinnerID }); } catch { ModelState.AddRuleViolations(dinner.GetRuleViolations()); return View(new DinnerFormViewModel(dinner)); } } The line with the comment "to catch other ModelState errors" was added after reading a possible solution from another StackOverflow thread, here: http://stackoverflow.com/questions/1461283/asp-net-mvc-updatemodel-not-updating-but-not-throwing-error Unfortunately, that solution didn't help me. Here is the corresponding markup in my Dinners/Edit.aspx View: <asp:Content ID="Main" ContentPlaceHolderID="MainContent" runat="server"> <h2>Edit Dinner</h2> <% Html.RenderPartial("DinnerForm"); %> </asp:Content> Here is the corresponding markup in my DinnerForm.ascx Partial View. This Partial View file is also used by the Create feature, which is working fine: <%=Html.ValidationSummary("Please correct the errors and try again.") %> <% using (Html.BeginForm()) { %> <fieldset> <p> <label for="Title">Dinner Title:</label> <%=Html.TextBoxFor(model => Model.Dinner.Title)%> <%=Html.ValidationMessage("Title", "*") %> </p> <p> <label for="EventDate">EventDate:</label> <%=Html.TextBoxFor(model => Model.Dinner.EventDate, new { value = String.Format("{0:g}", Model.Dinner.EventDate) })%> <%=Html.ValidationMessage("EventDate", "*") %> </p> <p> <label for="Description">Description:</label> <%=Html.TextBoxFor(model => Model.Dinner.Description)%> <%=Html.ValidationMessage("Description", "*")%> </p> <p> <label for="Address">Address:</label> <%=Html.TextBoxFor(model => Model.Dinner.Address)%> <%=Html.ValidationMessage("Address", "*") %> </p> <p> <label for="Country">Country:</label> <%=Html.DropDownListFor(model => Model.Dinner.Country, Model.Countries)%> <%=Html.ValidationMessage("Country", "*") %> </p> <p> <label for="ContactPhone">ContactPhone #:</label> <%=Html.TextBoxFor(model => Model.Dinner.ContactPhone)%> <%=Html.ValidationMessage("ContactPhone", "*") %> </p> <p> <label for="Latitude">Latitude:</label> <%=Html.TextBoxFor(model => Model.Dinner.Latitude)%> <%=Html.ValidationMessage("Latitude", "*") %> </p> <p> <label for="Longitude">Longitude:</label> <%=Html.TextBoxFor(model => Model.Dinner.Longitude)%> <%=Html.ValidationMessage("Longitude", "*") %> </p> <p> <input type="submit" value="Save"/> </p> </fieldset> <% } %> In any case, I've been hitting away at this for hours, and I'm out of ideas. So, I'm hoping someone here can help nudge me in the right direction, in order to figure out what I'm doing wrong.

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• UITableView: Juxtaposing row, header, and footer insertions/deletions

  - by jdandrea

  Consider a very simple UITableView with one of two states. First state: One (overall) table footer One section containing two rows, a section header, and a section footer Second state: No table footer One section containing four rows and no section header/footer In both cases, each row is essentially one of four possible UITableViewCell objects, each containing its own UITextField. We don't even bother with reuse or caching, since we're only dealing with four known cells in this case. They've been created in an accompanying XIB, so we already have them all wired up and ready to go. Now consider we want to toggle between the two states. Sounds easy enough. Let's suppose our view controller's right bar button item provides the toggling support. We'll also track the current state with an ivar and enumeration. To be explicit for a sec, here's how one might go from state 1 to 2. (Presume we handle the bar button item's title as well.) In short, we want to clear out our table's footer view, then insert the third and fourth rows. We batch this inside an update block like so: // Brute forced references to the third and fourth rows in section 0 NSUInteger row02[] = {0, 2}; NSUInteger row03[] = {0, 3}; [self.tableView beginUpdates]; state = tableStateTwo; // 'internal' iVar, not a property self.tableView.tableFooterView = nil; [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObjects: [NSIndexPath indexPathWithIndexes:row02 length:2], [NSIndexPath indexPathWithIndexes:row03 length:2], nil] withRowAnimation:UITableViewRowAnimationFade]; [self.tableView endUpdates]; For the reverse, we want to reassign the table footer view (which, like the cells, is in the XIB ready and waiting), and remove the last two rows: // Use row02 and row03 from earlier snippet [self.tableView beginUpdates]; state = tableStateOne; self.tableView.tableFooterView = theTableFooterView; [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects: [NSIndexPath indexPathWithIndexes:row02 length:2], [NSIndexPath indexPathWithIndexes:row03 length:2], nil] withRowAnimation:UITableViewRowAnimationFade]; [self.tableView endUpdates]; Now, when the table asks for rows, it's very cut and dry. The first two cells are the same in both cases. Only the last two appear/disappear depending on the state. The state ivar is consulted when the Table View asks for things like number of rows in a section, height for header/footer in a section, or view for header/footer in a section. This last bit is also where I'm running into trouble. Using the above logic, section 0's header/footer does not disappear. Specifically, the footer stays below the inserted rows, but the header now overlays the topmost row. If we switch back to state one, the section footer is removed, but the section header remains. How about using [self.tableView reloadData] then? Sure, why not. We take care not to use it inside the update block, per Apple's advisement, and simply add it after endUpdates. This time, good news! The section 0 header/footer disappears. :) However ... Toggling back to state one results in a most exquisite mess! The section 0 header returns, only to overlay the first row once again (instead of appear above it). The section 0 footer is placed below the last row just fine, but the overall table footer - now reinstated - overlays the section footer. Waaaaaah … now what? Just to be sure, let's toggle back to state two again. Yep, that looks fine. Coming back to state one? Yecccch. I also tried sprinkling in a few other stunts like using reloadSections:withRowAnimation:, but that only serves to make things worse. NSRange range = {0, 1}; NSIndexSet *indexSet = [NSIndexSet indexSetWithIndexesInRange:range]; ... [self.tableView reloadSections:indexSet withRowAnimation:UITableViewRowAnimationFade]; Case in point: If we invoke reloadSections... just before the end of the update block, changing to state two hides the first two rows from view, even though the space they would otherwise occupy remains. Switching back to state one returns section 0's header/footer to normal, but those first two rows remain invisible. Case two: Moving reloadSections... to just after the update block but before reloadData results in all rows becoming invisible! (I refer to the row as being invisible because, during tracing, tableView:cellForRowAtIndexPath: is returning bona-fide cell objects for those rows.) Case three: Moving reloadSections... after tableView:cellForRowAtIndexPath: brings us a bit closer, but the section 0 header/footer never returns when switching back to state one. Hmm. Perhaps it's a faux pas using both reloadSections... and reloadData, based on what I'm seeing at trace-time, which brings us to: Case four: Replacing reloadData with reloadSections... outright. All cells in state two disappear. All cells in state one remain missing as well (though the space is kept). So much for that theory. :) Tracing through the code, the cell and view objects, as well as the section heights, are all where they should be at the opportune times. They just aren't rendering sanely. So, how to crack this case? Clues welcome/appreciated!

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• iPhone wb dev with jqTouch

  - by sea_1987

  Hi there, I am some real trouble getting the transitions working for my iPhone site, I am trying to add the 'flip' transition using, <a class="button flip href="#about">About</a> However I get no flip transition nor do is navigate to the about anchor, here is my HTML, <!DOCTYPE html> <head> <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" /> <title>Elfm Iphone</title> <script src="javascript/jquery.1.3.2.min.js" type="text/javascript" charset="utf-8"></script> <script src="javascript/jqtouch.min.js" type="text/javascript" charset="utf-8"></script> <link rel="stylesheet" href="css/jqtouch.css" type="text/css" media="screen" title="no title" charset="utf-8"> <link rel="stylesheet" href="themes/apple/theme.css" type="text/css" media="screen" title="no title" charset="utf-8"> <link rel="stylesheet" href="css/base.css" type="text/css" media="screen" title="no title" charset="utf-8"> <script type="javascript/text"> $.jQTouch({ icon:'kilo.png', statusBar:'black' }); </script> </head> <body> <div id="about"> <div class="toolbar"> <h1>About</h1> <p>Some about blurb, telling the users about the station and the site, in most cases this won't be a very extensive page, just some background information, nothing that will overface the user and not want them to carry on listening. I would probably be a good idea to push the user to the stream as well. This could be done as an internal link, something like, why not listen to our <a href="http://www.twovalleysradio.co.uk/iphone/stream.pls">live feed?</a></p> </div> </div> <div id="blog"> <div class="toolbar"> <h1>Blog</h1> </div> <p>The blog should be an easy things to implement we should just be able to use the stations RSS feed from wordpress and then style up the entries with CSS to match the look and feel of the sites. We could possibly implement the nice listing features that come with the theme available and if not we could easily build our own theme.</p> </div> <div id="home" class="current"> <div class="toolbar"> <h1>Home</h1> <a class="button flip" href="#blog">Blog</a> </div> <div id="header"> <img src="images/elfm-header.png" alt="ELfm" title="ELfm" /> </div> <div id="content"> <p>Here's a load of text about is and where it's based and why it's coll and who listen to it and a load more blurb and now I'm just adding filler for the sake of it and I know dynamic text is a pain because then we have to consider what happens if there is too much of it but we'll show a live preview on the web service of what the app would look like.</p> </div> <div id="play"> <div id="button"> <a class="play_stream" href=""> Play </a> </div> </div> </div> <div id="twitter"> <div id="tweet"> </div> </div> </body> </html> I am testing this is Chrome and Safari and also the iPhone simulator.

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• Rails 3 Form For Custom Action

  - by Andrew

  I'm having trouble routing a form to a custom action in Rails 3. Here are my routes: resources :photos do resources :comments collection do get 'update_states' end member do put 'upload' end end Here's the form_for: form_for @photo, :remote => true, :url => { :action => upload_photo_path(@photo) }, :html => { :multipart => :true, :method => 'put' } do |f| And here's the error message: No route matches {:action=>"/photos/42/upload", :controller=>"photos"} ... this is especially frustrating because "photos/:id/upload" is exactly the correct action for this form. What am I missing? EDITS - Here are the original Photo-related routes: photo_comments GET /photos/:photo_id/comments(.:format) {:action=>"index", :controller=>"comments"} POST /photos/:photo_id/comments(.:format) {:action=>"create", :controller=>"comments"} new_photo_comment GET /photos/:photo_id/comments/new(.:format) {:action=>"new", :controller=>"comments"} edit_photo_comment GET /photos/:photo_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"} photo_comment GET /photos/:photo_id/comments/:id(.:format) {:action=>"show", :controller=>"comments"} PUT /photos/:photo_id/comments/:id(.:format) {:action=>"update", :controller=>"comments"} DELETE /photos/:photo_id/comments/:id(.:format) {:action=>"destroy", :controller=>"comments"} update_states_photos GET /photos/update_states(.:format) {:action=>"update_states", :controller=>"photos"} upload_photo PUT /photos/:id/upload(.:format) {:action=>"upload", :controller=>"photos"} photos GET /photos(.:format) {:action=>"index", :controller=>"photos"} POST /photos(.:format) {:action=>"create", :controller=>"photos"} new_photo GET /photos/new(.:format) {:action=>"new", :controller=>"photos"} edit_photo GET /photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"} photo GET /photos/:id(.:format) {:action=>"show", :controller=>"photos"} PUT /photos/:id(.:format) {:action=>"update", :controller=>"photos"} DELETE /photos/:id(.:format) {:action=>"destroy", :controller=>"photos"} Here are the relevant routes when I changed the route to match 'upload': photo_comments GET /photos/:photo_id/comments(.:format) {:action=>"index", :controller=>"comments"} POST /photos/:photo_id/comments(.:format) {:action=>"create", :controller=>"comments"} } new_photo_comment GET /photos/:photo_id/comments/new(.:format) {:action=>"new", :controller=>"comments"} edit_photo_comment GET /photos/:photo_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"} photo_comment GET /photos/:photo_id/comments/:id(.:format) {:action=>"show", :controller=>"comments"} PUT /photos/:photo_id/comments/:id(.:format) {:action=>"update", :controller=>"comments"} DELETE /photos/:photo_id/comments/:id(.:format) {:action=>"destroy", :controller=>"comments"} update_states_photos GET /photos/update_states(.:format) {:action=>"update_states", :controller=>"photos"} upload_photo /photos/:id/upload(.:format) {:action=>"upload", :controller=>"photos"} photos GET /photos(.:format) {:action=>"index", :controller=>"photos"} POST /photos(.:format) {:action=>"create", :controller=>"photos"} new_photo GET /photos/new(.:format) {:action=>"new", :controller=>"photos"} edit_photo GET /photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"} photo GET /photos/:id(.:format) {:action=>"show", :controller=>"photos"} PUT /photos/:id(.:format) {:action=>"update", :controller=>"photos"} DELETE /photos/:id(.:format) {:action=>"destroy", :controller=>"photos"} Unfortunately 'match' didn't work any better... -- EDIT -- Just to confirm another scenario here... with this in the routes: resources :photos do resources :comments collection do get 'update_states' end member do match 'upload' end end and this in the view: form_for @photo, :remote => true, :url => { :action => 'upload' }, :html => { :multipart => :true, :id => 'photo_upload' } do |f| I still get: No route matches {:action=>"upload", :controller=>"photos"}

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• Ruby on Rails can't find 'label'

  - by msandbot

  Hi trying to make a Registration page with Ruby on rails using the tutorial found here http://rails.francik.name/week4.html having trouble getting the page to work after adding <h1>Register</h1> <enter code here%= error_messages_for :user %> <% form_for :user do |f| %> <p> <%= f.label :screen_name %>: <%= f.text_field :screen_name %> </p> <p> <%= f.label :e_mail, "E-Mail" %>: <%= f.text_field :e_mail %> </p> <p> <%= f.label :password %>: <%= f.password_field :password %> </p> <p> <%= f.submit "Register" %> </p> <% end %> to the register.rhtml file when loaded I get NoMethodError in User#register Showing app/views/user/register.rhtml where line #5 raised: undefined method `label' for #<ActionView::Helpers::FormBuilder:0x275ef48> the application trace is #{RAILS_ROOT}/app/views/user/register.rhtml:5:in `_run_rhtml_47app47views47user47register46rhtml' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_helper.rb:151:in `fields_for' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/helpers/form_helper.rb:127:in `form_for' #{RAILS_ROOT}/app/views/user/register.rhtml:3:in `_run_rhtml_47app47views47user47register46rhtml' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in `send' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:326:in `compile_and_render_template' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:301:in `render_template' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/base.rb:260:in `render_file' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:806:in `render_file' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:711:in `render_with_no_layout' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/layout.rb:247:in `render_without_benchmark' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in `render' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in `measure' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:50:in `render' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:1096:in `perform_action_without_filters' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:632:in `call_filter' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:619:in `perform_action_without_benchmark' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/1.8/benchmark.rb:293:in `measure' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/rescue.rb:83:in `perform_action' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `send' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:430:in `process_without_filters' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/filters.rb:624:in `process_without_session_management_support' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/session_management.rb:114:in `process' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controller/base.rb:330:in `process' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:78:in `process' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in `synchronize' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in `process' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:618:in `process_client' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `each' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:617:in `process_client' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `initialize' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `new' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:736:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `initialize' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `new' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:720:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:271:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in `each' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:127:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in `run' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:243 /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/bin/mongrel_rails:16:in `load' /Applications/Locomotive2/Bundles/standardRailsMar2007.locobundle/i386/bin/mongrel_rails:16

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• Namespaced Backbone.js Views not firing events

  - by Stasio

  I'm currently getting started with Backbone.js. I've wrote some examples with Backbone and they are working fine. But now I need to use Backbone.js with Rails 3.1 and CoffeeScript. I took my well-working examples and rewrote on CoffeeScript using backbone-rails gem. And got the following problem. I've simplyfied code, but the problem is still remaining I've got the following files: Here I'm starting my Backbone app at main.js.coffee file according to my main_controller in rails app: $ = jQuery $-> CsfTaskManager.init() Here is backbone app description: #= require_self #= require_tree ./templates #= require_tree ./models #= require_tree ./views #= require_tree ./routers window.CsfTaskManager = Models: {} Collections: {} Routers: {} Views: {} init: -> new CsfTaskManager.Routers.AppRouter() Backbone.history.start() This is my apps' router: class CsfTaskManager.Routers.AppRouter extends Backbone.Router initialize: (options) -> goalsBlock = new CsfTaskManager.Views.goalsView() routes: "!/": "root", some other routes... And finally view: class CsfTaskManager.Views.goalsView extends Backbone.View initialize: -> this.goals = new CsfTaskManager.Collections.GoalsCollection() el: $('div#app'), events: "click .add-btn": "addGoal" addGoal: -> alert('ji') HTML page has such code: <div id="app"> <div class="app-screen hidden" id="goal-form" style="display: block; "> <button class="btn" id="load"> Load </button> <h3> New Goal </h3> <div class="form-stacked"> <form accept-charset="UTF-8" action="/goals" class="new_goal" id="new_goal" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="?"><input name="authenticity_token" type="hidden" value="Pnt+V/tS1/b079M/1ZIRdw2ss1D6bvJKVh868DXRjUg="></div> <label for="goal_title">Title</label> <p></p> <input class="goal-title" id="goal_title" name="goal[title]" size="30" type="text"> <p></p> <label for="goal_note">Note</label> <p></p> <input class="goal-note" id="goal_note" name="goal[note]" size="30" type="text"> </form> </div> <p> <button class="add-btn btn"> Add </button> </p> <ul id="goals-list"></ul> </div> <table class="app-screen bordered-table" id="calendar-grid" style="display: none; "> <tbody><tr> <td colspan="2"> week </td> </tr> <tr> <td> day </td> <td> <div id="calendar"></div> </td> </tr> </tbody></table> <div class="app-screen hidden" id="role-form" style="display: none; "> <h3> New User Role </h3> <div class="form-stacked"> <form accept-charset="UTF-8" action="/roles" class="new_role" id="new_role" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="?"><input name="authenticity_token" type="hidden" value="Pnt+V/tS1/b079M/1ZIRdw2ss1D6bvJKVh868DXRjUg="></div> <label for="role_title">Title</label> <p></p> <input class="role-title" id="role_name" name="role[name]" size="30" type="text"> <p></p> <label for="role_note">Note</label> <p></p> <input class="role-note" id="role_description" name="role[description]" size="30" type="text"> </form> </div> <p> <button class="add-btn btn"> Add </button> </p> </div> </div> So .add-btn element is nested in #app, but click on this button doesn't fire event. Where can be a trouble? Before, when I had the same app in one .js file, without of coffeescript, namespacing and backbone-rails gem, everything was allright. Bytheway, appRouter works fine, goalsView object is created successfully too, but events don't fire for some reasons. Please give me some hint, because I'm really got stuck...

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• Spring 3.0: Handler mapping issue

  - by Yaniv Cohen

  I am having a trouble mapping a specific URL request to one of the controllers in my project. the URL is : http://HOSTNAME/api/v1/profiles.json the war which is deployed is: api.war the error I get is the following: [PageNotFound] No mapping found for HTTP request with URI [/api/v1/profiles.json] in DispatcherServlet with name 'action' The configuration I have is the following: web.xml : <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext.xml,/WEB-INF/applicationContext-security.xml</param-value> </context-param> <!-- Cache Control filter --> <filter> <filter-name>cacheControlFilter</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <!-- Cache Control filter mapping --> <filter-mapping> <filter-name>cacheControlFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring security filter --> <filter> <filter-name>springSecurityFilterChain</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <!-- Spring security filter mapping --> <filter-mapping> <filter-name>springSecurityFilterChain</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring listener --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Spring Controller --> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>/v1/*</url-pattern> </servlet-mapping> The action-servlet.xml: <mvc:annotation-driven/> <bean id="contentNegotiatingViewResolver" class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"> <property name="favorPathExtension" value="true" /> <property name="favorParameter" value="true" /> <!-- default media format parameter name is 'format' --> <property name="ignoreAcceptHeader" value="false" /> <property name="order" value="1" /> <property name="mediaTypes"> <map> <entry key="html" value="text/html"/> <entry key="json" value="application/json" /> <entry key="xml" value="application/xml" /> </map> </property> <property name="viewResolvers"> <list> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> </bean> </list> </property> <property name="defaultViews"> <list> <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" /> <bean class="org.springframework.web.servlet.view.xml.MarshallingView"> <constructor-arg> <bean class="org.springframework.oxm.xstream.XStreamMarshaller" /> </constructor-arg> </bean> </list> </property> </bean> the application context security: <sec:http auto-config='true' > <sec:intercept-url pattern="/login.*" filters="none"/> <sec:intercept-url pattern="/oauth/**" access="ROLE_USER" /> <sec:intercept-url pattern="/v1/**" access="ROLE_USER" /> <sec:intercept-url pattern="/request_token_authorized.jsp" access="ROLE_USER" /> <sec:intercept-url pattern="/**" access="ROLE_USER"/> <sec:form-login authentication-failure-url ="/login.html" default-target-url ="/login.html" login-page ="/login.html" login-processing-url ="/login.html" /> <sec:logout logout-success-url="/index.html" logout-url="/logout.html" /> </sec:http> the controller: @Controller public class ProfilesController { @RequestMapping(value = {"/v1/profiles"}, method = {RequestMethod.GET,RequestMethod.POST}) public void getProfilesList(@ModelAttribute("response") Response response) { .... } } the request never reaches this controller. Any ideas?

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• CheckBox ListView SelectedValues DependencyProperty Binding

  - by Ristogod

  I am writing a custom control that is a ListView that has a CheckBox on each item in the ListView to indicate that item is Selected. I was able to do so with the following XAML. <ListView x:Class="CheckedListViewSample.CheckBoxListView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d"> <ListView.Style> <Style TargetType="{x:Type ListView}"> <Setter Property="SelectionMode" Value="Multiple" /> <Style.Resources> <Style TargetType="ListViewItem"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ListViewItem"> <Border BorderThickness="{TemplateBinding Border.BorderThickness}" Padding="{TemplateBinding Control.Padding}" BorderBrush="{TemplateBinding Border.BorderBrush}" Background="{TemplateBinding Panel.Background}" SnapsToDevicePixels="True"> <CheckBox IsChecked="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListViewItem}}}"> <CheckBox.Content> <ContentPresenter Content="{TemplateBinding ContentControl.Content}" ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" /> </CheckBox.Content> </CheckBox> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </Style.Resources> </Style> </ListView.Style> </ListView> I however am trying to attempt one more feature. The ListView has a SelectedItems DependencyProperty that returns a collection of the Items that are checked. However, I need to implement a SelectedValues DependencyProperty. I also am implementing a SelectedValuesPath DependencyProperty. By using the SelectedValuesPath, I indicate the path where the values are found for each selected item. So if my items have an ID property, I can specify using the SelectedValuesPath property "ID". The SelectedValues property would then return a collection of ID values. I have this working also using this code in the code-behind: using System.Windows; using System.Windows.Controls; using System.ComponentModel; using System.Collections; using System.Collections.Generic; namespace CheckedListViewSample { /// <summary> /// Interaction logic for CheckBoxListView.xaml /// </summary> public partial class CheckBoxListView : ListView { public static DependencyProperty SelectedValuesPathProperty = DependencyProperty.Register("SelectedValuesPath", typeof(string), typeof(CheckBoxListView), new PropertyMetadata(string.Empty, null)); public static DependencyProperty SelectedValuesProperty = DependencyProperty.Register("SelectedValues", typeof(IList), typeof(CheckBoxListView), new PropertyMetadata(new List<object>(), null)); [Category("Appearance")] [Localizability(LocalizationCategory.NeverLocalize)] [Bindable(true)] public string SelectedValuesPath { get { return ((string)(base.GetValue(CheckBoxListView.SelectedValuesPathProperty))); } set { base.SetValue(CheckBoxListView.SelectedValuesPathProperty, value); } } [Bindable(true)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] [Category("Appearance")] public IList SelectedValues { get { return ((IList)(base.GetValue(CheckBoxListView.SelectedValuesPathProperty))); } set { base.SetValue(CheckBoxListView.SelectedValuesPathProperty, value); } } public CheckBoxListView() : base() { InitializeComponent(); base.SelectionChanged += new SelectionChangedEventHandler(CheckBoxListView_SelectionChanged); } private void CheckBoxListView_SelectionChanged(object sender, SelectionChangedEventArgs e) { List<object> values = new List<object>(); foreach (var item in SelectedItems) { if (string.IsNullOrWhiteSpace(SelectedValuesPath)) { values.Add(item); } else { try { values.Add(item.GetType().GetProperty(SelectedValuesPath).GetValue(item, null)); } catch { } } } base.SetValue(CheckBoxListView.SelectedValuesProperty, values); e.Handled = true; } } } My problem is that my binding only works one way right now. I'm having trouble trying to figure out how to implement my SelectedValues DependencyProperty so that I could Bind a Collection of values to it, and when the control is loaded, the CheckBoxes are checked with items that have values that correspond to the SelectedValues. I've considered using the PropertyChangedCallBack event, but can't quite figure out how I could write that to achieve my goal. I'm also unsure of how I find the correct ListViewItem to set it as Selected. And lastly, if I can find the ListViewItem and set it to be Selected, won't that fire my SelectionChanged event each time I set a ListViewItem to be Selected?

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• JPA behaviour...

  - by Marcel

  Hi I have some trouble understanding a JPA behaviour. Mabye someone could give me a hint. Situation: Product entity: @Entity public class Product implements Serializable { ... @OneToMany(mappedBy="product", fetch=FetchType.EAGER) private List<ProductResource> productResources = new ArrayList<ProductResource>(); .... public List<ProductResource> getProductResources() { return productResources; } public boolean equals(Object obj) { if (obj == this) return true; if (obj == null) return false; if (!(obj instanceof Product)) return false; Product p = (Product) obj; return p.productId == productId; } } Resource entity: @Entity public class Resource implements Serializable { ... @OneToMany(mappedBy="resource", fetch=FetchType.EAGER) private List<ProductResource> productResources = new ArrayList<ProductResource>(); ... public void setProductResource(List<ProductResource> productResource) { this.productResources = productResource; } public List<ProductResource> getProductResources() { return productResources; } public boolean equals(Object obj) { if (obj == this) return true; if (obj == null) return false; if (!(obj instanceof Resource)) return false; Resource r = (Resource) obj; return (long)resourceId==(long)r.resourceId; } } ProductResource Entity: This is a JoinTable (association class) with additional properties (amount). It maps Product and Resources. @Entity public class ProductResource implements Serializable { ... @JoinColumn(nullable=false, updatable=false) @ManyToOne(fetch=FetchType.EAGER, cascade=CascadeType.PERSIST) private Product product; @JoinColumn(nullable=false, updatable=false) @ManyToOne(fetch=FetchType.EAGER, cascade=CascadeType.PERSIST) private Resource resource; private int amount; public void setProduct(Product product) { this.product = product; if(!product.getProductResources().contains((this))){ product.getProductResources().add(this); } } public Product getProduct() { return product; } public void setResource(Resource resource) { this.resource = resource; if(!resource.getProductResources().contains((this))){ resource.getProductResources().add(this); } } public Resource getResource() { return resource; } ... public boolean equals(Object obj) { if (obj == this) return true; if (obj == null) return false; if (!(obj instanceof ProductResource)) return false; ProductResource pr = (ProductResource) obj; return (long)pr.productResourceId == (long)productResourceId; } } This is the Session Bean (running on glassfish). @Stateless(mappedName="PersistenceManager") public class PersistenceManagerBean implements PersistenceManager { @PersistenceContext(unitName = "local_mysql") private EntityManager em; public Object create(Object entity) { em.persist(entity); return entity; } public void delete(Object entity) { em.remove(em.merge(entity)); } public Object retrieve(Class entityClass, Long id) { Object entity = em.find(entityClass, id); return entity; } public void update(Object entity) { em.merge(entity); } } I call the session Bean from a java client: public class Start { public static void main(String[] args) throws NamingException { PersistenceManager pm = (PersistenceManager) new InitialContext().lookup("java:global/BackITServer/PersistenceManagerBean"); ProductResource pr = new ProductResource(); Product p = new Product(); Resource r = new Resource(); pr.setProduct(p); pr.setResource(r); ProductResource pr_stored = (ProductResource) pm.create(pr); pm.delete(pr_stored); Product p_ret = (Product) pm.retrieve(Product.class, pr_stored.getProduct().getProductId()); // prints out true ???????????????????????????????????? System.out.println(p_ret.getProductResources().contains(pr_stored)); } } So here comes my problem. Why is the ProductResource entity still in the List productResources(see code above). The productResource tuple in the db is gone after the deletion and I do newly retrieve the Product entity. If I understood right every method call of the client happens in a new persistence context, but here i obviously get back the non-refreshed product object!? Any help is appreciated Thanks Marcel

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• Spring MVC configuration problems

  - by Smek

  i have some problems with configuring Spring MVC. I made a maven multi module project with the following modules: /api /domain /repositories /webapp I like to share the domain and the repositories between the api and the webapp (both web projects). First i want to configure the webapp to use the repositories module so i added the dependencies in the xml file like this: <dependency> <groupId>${project.groupId}</groupId> <artifactId>domain</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>${project.groupId}</groupId> <artifactId>repositories</artifactId> <version>1.0-SNAPSHOT</version> </dependency> And my controller in the webapp module looks like this: package com.mywebapp.webapp; import com.mywebapp.domain.Person; import com.mywebapp.repositories.services.PersonService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; @Controller @RequestMapping("/") @Configuration @ComponentScan("com.mywebapp.repositories") public class PersonController { @Autowired PersonService personservice; @RequestMapping(method = RequestMethod.GET) public String printWelcome(ModelMap model) { Person p = new Person(); p.age = 23; p.firstName = "John"; p.lastName = "Doe"; personservice.createNewPerson(p); model.addAttribute("message", "Hello world!"); return "index"; } } In my webapp module i try to load configuration files in my web.xml like this: <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:/META-INF/persistence-context.xml, classpath:/META-INF/service-context.xml</param-value> </context-param> These files cannot be found so i get the following error: org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [META-INF/persistence-context.xml]; nested exception is java.io.FileNotFoundException: class path resource [META-INF/persistence-context.xml] cannot be opened because it does not exist These files are in the repositories module so my first question is how can i make Spring to find these files? I also have trouble Autowiring the PersonService to my Controller class did i forget to configure something in my XML? Here is the error message: [INFO] [talledLocalContainer] SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener [INFO] [talledLocalContainer] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.mywebapp.repositories.repository.PersonRepository com.mywebapp.repositories.services.PersonServiceImpl.personRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.mywebapp.repositories.repository.PersonRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} PersonServiceImple.java: package com.mywebapp.repositories.services; import com.mywebapp.domain.Person; import com.mywebapp.repositories.repository.PersonRepository; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.stereotype.Service; @Service public class PersonServiceImpl implements PersonService{ @Autowired public PersonRepository personRepository; @Autowired public MongoTemplate personTemplate; @Override public Person createNewPerson(Person person) { return personRepository.save(person); } } PersonService.java package com.mywebapp.repositories.services; import com.mywebapp.domain.Person; public interface PersonService { Person createNewPerson(Person person); } PersonRepository.java: package com.mywebapp.repositories.repository; import com.mywebapp.domain.Person; import org.springframework.data.mongodb.repository.MongoRepository; import org.springframework.stereotype.Repository; import java.math.BigInteger; @Repository public interface PersonRepository extends MongoRepository<Person, BigInteger> { } persistance-context.xml <?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:mongo="http://www.springframework.org/schema/data/mongo" xsi:schemaLocation= "http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <context:property-placeholder location="classpath:mongo.properties"/> <mongo:mongo host="${mongo.host}" port="${mongo.port}" id="mongo"> <mongo:options connections-per-host="${mongo.connectionsPerHost}" threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}" connect-timeout="${mongo.connectTimeout}" max-wait-time="${mongo.maxWaitTime}" auto-connect-retry="${mongo.autoConnectRetry}" socket-keep-alive="${mongo.socketKeepAlive}" socket-timeout="${mongo.socketTimeout}" slave-ok="${mongo.slaveOk}" write-number="1" write-timeout="0" write-fsync="true"/> </mongo:mongo> <mongo:db-factory dbname="person" mongo-ref="mongo" id="mongoDbFactory"/> <bean id="personTemplate" name="personTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/> </bean> <mongo:repositories base-package="com.mywebapp.repositories.repository" mongo-template-ref="personTemplate"> <mongo:repository id="personRepository" repository-impl-postfix="PersonRepository" mongo-template-ref="personTemplate" create-query-indexes="true"/> </mongo:repositories> Thanks

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• When I mix JSTL 1.0 and JSTL 1.1 taglib declarations, it causes a ParseException on some of my serve

  - by sangfroid

  Hello all, When I mix JSTL 1.0 and JSTL 1.1 taglib declarations, it causes a ParseException on some of my servers, but not all of them. Here is the block of code that's giving me trouble : <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%> <c:set var="TEXTVARIABLE">|STRINGOFTEXT|</c:set> <c:set var="OTHERTEXTVARIABLE">${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}</c:set> And here is the exception : javax.servlet.jsp.JspException: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. However, everything works fine if I change the URI for the core declaration to http://java.sun.com/jsp/jstl/core So here's the really weird part : for some reason, mixing 1.0 and 1.1 taglib declarations only causes an exception on two of my servers -- my staging server and my production server. It causes no problems at all on my local machine or my development server. Why is this? What could possibly be causing this difference in behavior? The three servers are extremely similar in setup and configuration. The JSP page is being served up by OpenCMS, and I'm using the Caucho's Resin webserver. I understand that you don't know how my servers or CMS are set up, but really, what I'm looking for is ideas. Any ideas at all would help -- this problem has been driving me absolutely batty. Even if you don't know what could be causing the problem, if you have any suggestions at all for how I could approach the problem, that would be extremely helpful. I just don't understand what could cause this difference in behavior between my servers. For reference, here's the full stack trace : javax.servlet.jsp.JspException: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. at org.opencms.jsp.CmsJspTagInclude.includeActionWithCache(CmsJspTagInclude.java:369) at org.opencms.jsp.CmsJspTagInclude.includeTagAction(CmsJspTagInclude.java:241) at org.opencms.jsp.CmsJspTagInclude.doEndTag(CmsJspTagInclude.java:472) at _jsp._WEB_22dINF._jsp._online._system._modules.com_MYCOMPANY__marketing._templates._MAIN_0PAGE__jsp._jspService(_MAIN_0PAGE__jsp.java:153) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:579) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:194) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169) at org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:1193) at org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:423) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:173) at org.opencms.loader.CmsJspLoader.dispatchJsp(CmsJspLoader.java:1227) at org.opencms.loader.CmsJspLoader.load(CmsJspLoader.java:1171) at org.opencms.loader.A_CmsXmlDocumentLoader.load(A_CmsXmlDocumentLoader.java:232) at org.opencms.loader.CmsXmlContentLoader.load(CmsXmlContentLoader.java:52) at org.opencms.loader.CmsResourceManager.loadResource(CmsResourceManager.java:964) at org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1498) at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:152) at javax.servlet.http.HttpServlet.service(HttpServlet.java:115) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.filters.CmsGzipFilter.doFilter(CmsGzipFilter.java:177) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:106) at com.caucho.server.dispatch.ForwardFilterChain.doFilter(ForwardFilterChain.java:80) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:207) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520) at com.caucho.util.ThreadPool.run(ThreadPool.java:442) at java.lang.Thread.run(Thread.java:595) Caused by: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. at com.caucho.jsp.java.JspNode.error(JspNode.java:1489) at com.caucho.jsp.java.JspNode.error(JspNode.java:1480) at com.caucho.jsp.java.JavaJspGenerator.validate(JavaJspGenerator.java:466) at com.caucho.jsp.JspCompilerInstance.generate(JspCompilerInstance.java:475) at com.caucho.jsp.JspCompilerInstance.compile(JspCompilerInstance.java:373) at com.caucho.jsp.JspManager.compile(JspManager.java:233) at com.caucho.jsp.JspManager.createPage(JspManager.java:177) at com.caucho.jsp.JspManager.createPage(JspManager.java:157) at com.caucho.jsp.PageManager.getPage(PageManager.java:248) at com.caucho.jsp.PageManager.getPage(PageManager.java:166) at com.caucho.jsp.QServlet.getSubPage(QServlet.java:292) at com.caucho.jsp.QServlet.getPage(QServlet.java:210) at com.caucho.server.dispatch.PageFilterChain.compilePage(PageFilterChain.java:206) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:133) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:194) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169) at org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:1193) at org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:423) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:173) at org.opencms.jsp.CmsJspTagInclude.includeActionWithCache(CmsJspTagInclude.java:364) ... 45 more Thanks for the help!

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• Architecture choice about representation of collections in Business Objects

  - by Rajarshi

  I have made certain choices in my architecture which I request the community to review and comment. I am breaking up the post in smaller sections to make it easier to understand the context and then suggest/comment. I am sorry that the post is long, but is required to explain the context. What am I building A typical business application where there are application users, security roles, business operation/action rights based on roles and several business modules like Stock Receive, Stock Transfer, Sale Order, Sale Invoice, Sale Return, Stock Audit etc. and several reports. The application is a WinForm application since it has a lot of rich and responsive UI requirements and has to operate in disconnected mode (with a local SQL Server), most of the time. What have I done I have built a framework - nothing to boast about, but just a set of libraries that serves the repetative requirements of my application, e.g. authentication, role based authorization, data access, validation, exception handling, logging, change status tracking, presentation model compliance and reasonable loose coupling between components. No, I have not written everything from scratch, you can say I have consolidated many things together like some concepts from CSLA, Martin Fowler for Presentation Model, blocks from Enterprise Library, Unity etc. to build a set of libraries that will help my developers be productive quickly without having to look up Google for many of the technical requirements. I have tried to keep the framework generic so that it can be used in typical business applications and also tried to follow some best practices that will support the same Business Objects to be used in an ASP.NET MVC environment also. My present architecture serves my objectives well, and have built several modules (on WinForm) without much trouble. The architecture also lent itself well to build some usable prototype on ASP.NET MVC with the same set of business objects, without changing a single line of code. My Dilemma I have used Custom Business Objects since that gives me a clearer OOP representation of the problem scope in my solution scope, and helps me visualize my entire solution as collection of objects with data and behavior rather than having a set of relational data (DataSet) and implement behaviours (business logic, validation) etc. separately. With rich databinding support in .NET 2.0 binding Custom Business Objects to UI was a breeze. Now while building my business objects, I am still in a dilemma about representation of collections in business objects. Currently I am using DataSets to represent collections while I have seen many suggestions to implement custom collections. For example, in my vision, a typical Sale Invoice Object will contain 'Sales Invoice Items' as a collection. Now theoritically, I can accept that the each 'Sales Invoice Item' should have its own behavior along with their data (ItemCode, Name, Qty, Price etc.) but typically managing of Sale Invoice Items in a Sale Invoice is handled by the Sale Invoice Object itself, e.g. adding/removing Items from collection. Additionally, we can also put business logic/rules for the Sales Invoice Items like "Qty should not be greater than the ordered qty", "Price should be max 10% above the price in Sale Order" etc. in the Sale Invoice object itself. With that kind of a vision, I felt that most business object child collections can be managed by the parent itself, including add/remove from collection as well and implementing business logic for the collection items, hence the collection items hold nothing but data. Additionally, typical collections are represented in UI in Grids, where ability to support DataBinding becomes very important for any collection. Implementing a custom collection, in that case would also mean, I have to implement robust DataBinding support as well, for the collection, which is of course time consuming. Now, considering child collection behaviors are implemented in the parent and the need for DataBinding of child collections, I chose DataSet to represent any child collection in my business objects. In the above example of Sale Invoice I will have 'Invoice Number', 'Date', 'Customer' etc. as attributes of the 'Sale Invoice' but 'InvoiceItems' as a DataSet. Of course, when I say DataSet, it is not a vanilla dataset but an extended DataSet that supports business rule validation and the same role based security model of my framework to allow/deny any business operation to rows/columns of the DataSet, automatically. This approach has allowed easier collection management and databinding in my business objects and my developers are able to deliver modules rapidly. Questions Do you feel that the approach is reasonable? Do you see any shortcomings of this approach? I am recently thinking of using 'Typed DataSets' as child collections, for easier representation in code, that will allow me to write 'currentInvoice.InvoiceItems' (for the DataTable) and 'invoiceItem.ProductCode' or 'invoiceItem.Qty', instead of 'drow["ProductCode"].ToString()' or '(int)drow["Qty"]' etc. Does this choice have any demerits? Thank you if you have read so far and a salute if you still have the Energy to answer.

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• Ruby on Rails: Routing error

  - by JamesMcL13

  I am having trouble deleting and showing user records. Here is my routes.rb FinalApp::Application.routes.draw do resources :admin devise_for :users, :controllers => { :registrations => 'admin' } resources :projects match "search" => "projects#search", :as => :search root :to => 'projects#index' end Here is my admin controller: class AdminController < ApplicationController def index @users = User.all respond_to do |format| format.html # index.html.erb format.json { render :json => @users } end end def create @user = User.new(params[:user]) respond_to do |format| if @user.save format.html { redirect_to @user, notice: 'User was successfully created.' } format.json { render json: @user, status: :created, location: @user } else format.html { render action: "new" } format.json { render json: @user.errors, status: :unprocessable_entity } end end end # GET /users/1 # GET /users/1.json def show @user = User.find(params[:id]) @user_user_id = params[:id] respond_to do |format| format.html # show.html.erb format.json { render json: @user } end end # GET /users/new # GET /users/new.json def new @user = User.new respond_to do |format| format.html # new.html.erb format.json { render json: @user } end end # GET /users/1/edit def edit @user = User.find(params[:id]) end # POST /users # POST /users.json # PUT /users/1 # PUT /users/1.json def update @user = User.find(params[:id]) respond_to do |format| if @user.update_attributes(params[:user]) format.html { redirect_to @user, notice: 'User was successfully updated.' } format.json { head :no_content } else format.html { render action: "edit" } format.json { render json: @user.errors, status: :unprocessable_entity } end end end # DELETE /users/1 # DELETE /users/1.json def destroy @user = User.find(params[:id]) @user.destroy respond_to do |format| format.html { redirect_to users_url } format.json { head :no_content } end end end Here is my view: <%= stylesheet_link_tag "admin" %> <body> <div id ="title1">Admin</div> <div class ="menu"></div> <div id ="section3"> <table id = "mytable"> <table border = "1"> <tr> <th>Username </th> <th>Email</th> <th>First Name</th> <th>Last Name</th> <th>Admin?</th> <th></th> <th></th> <th></th> </tr> <%= link_to "New User", admin_new_path %><br /> <% @users.each do |t| %> <tr> <td><%= t.username %></td> <td><%= t.email %></td> <td><%= t.firstname %></td> <td><%= t.lastname %></td> <td><%= t.admin %></td> <td><%= link_to 'Show', t %></td> <td> <%= button_to "Delete", t, method: :delete, data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> </table></br> </body> </html> I can display the User database, but when I go to delete a record. I get this error No route matches [DELETE] "/users/11". I am new to rails so please remember this when trying to help. Thanks in advance. Edit: here are my routes = admin_index GET /admin(.:format) admin#index POST /admin(.:format) admin#create new_admin GET /admin/new(.:format) admin#new edit_admin GET /admin/:id/edit(.:format) admin#edit admin GET /admin/:id(.:format) admin#show PUT /admin/:id(.:format) admin#update DELETE /admin/:id(.:format) admin#destroy new_user_session GET /users/sign_in(.:format) devise/sessions#new user_session POST /users/sign_in(.:format) devise/sessions#create destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy user_password POST /users/password(.:format) devise/passwords#create new_user_password GET /users/password/new(.:format) devise/passwords#new edit_user_password GET /users/password/edit(.:format) devise/passwords#edit PUT /users/password(.:format) devise/passwords#update cancel_user_registration GET /users/cancel(.:format) admin#cancel user_registration POST /users(.:format) admin#create new_user_registration GET /users/sign_up(.:format) admin#new edit_user_registration GET /users/edit(.:format) admin#edit PUT /users(.:format) admin#update DELETE /users(.:format) admin#destroy projects GET /projects(.:format) projects#index POST /projects(.:format) projects#create new_project GET /projects/new(.:format) projects#new edit_project GET /projects/:id/edit(.:format) projects#edit project GET /projects/:id(.:format) projects#show PUT /projects/:id(.:format) projects#update DELETE /projects/:id(.:format) projects#destroy search /search(.:format) projects#search root / projects#index

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• Threading extra state through a parser in Scala

  - by Travis Brown

  I'll give you the tl;dr up front I'm trying to use the state monad transformer in Scalaz 7 to thread extra state through a parser, and I'm having trouble doing anything useful without writing a lot of t m a -> t m b versions of m a -> m b methods. An example parsing problem Suppose I have a string containing nested parentheses with digits inside them: val input = "((617)((0)(32)))" I also have a stream of fresh variable names (characters, in this case): val names = Stream('a' to 'z': _*) I want to pull a name off the top of the stream and assign it to each parenthetical expression as I parse it, and then map that name to a string representing the contents of the parentheses, with the nested parenthetical expressions (if any) replaced by their names. To make this more concrete, here's what I'd want the output to look like for the example input above: val target = Map( 'a' -> "617", 'b' -> "0", 'c' -> "32", 'd' -> "bc", 'e' -> "ad" ) There may be either a string of digits or arbitrarily many sub-expressions at a given level, but these two kinds of content won't be mixed in a single parenthetical expression. To keep things simple, we'll assume that the stream of names will never contain either duplicates or digits, and that it will always contain enough names for our input. Using parser combinators with a bit of mutable state The example above is a slightly simplified version of the parsing problem in this Stack Overflow question. I answered that question with a solution that looked roughly like this: import scala.util.parsing.combinator._ class ParenParser(names: Iterator[Char]) extends RegexParsers { def paren: Parser[List[(Char, String)]] = "(" ~> contents <~ ")" ^^ { case (s, m) => (names.next -> s) :: m } def contents: Parser[(String, List[(Char, String)])] = "\\d+".r ^^ (_ -> Nil) | rep1(paren) ^^ ( ps => ps.map(_.head._1).mkString -> ps.flatten ) def parse(s: String) = parseAll(paren, s).map(_.toMap) } It's not too bad, but I'd prefer to avoid the mutable state. What I want Haskell's Parsec library makes adding user state to a parser trivially easy: import Control.Applicative ((*>), (<$>), (<*)) import Data.Map (fromList) import Text.Parsec paren = do (s, m) <- char '(' *> contents <* char ')' h : t <- getState putState t return $ (h, s) : m where contents = flip (,) [] <$> many1 digit <|> (\ps -> (map (fst . head) ps, concat ps)) <$> many1 paren main = print $ runParser (fromList <$> paren) ['a'..'z'] "example" "((617)((0)(32)))" This is a fairly straightforward translation of my Scala parser above, but without mutable state. What I've tried I'm trying to get as close to the Parsec solution as I can using Scalaz's state monad transformer, so instead of Parser[A] I'm working with StateT[Parser, Stream[Char], A]. I have a "solution" that allows me to write the following: import scala.util.parsing.combinator._ import scalaz._, Scalaz._ object ParenParser extends ExtraStateParsers[Stream[Char]] with RegexParsers { protected implicit def monadInstance = parserMonad(this) def paren: ESP[List[(Char, String)]] = (lift("(" ) ~> contents <~ lift(")")).flatMap { case (s, m) => get.flatMap( names => put(names.tail).map(_ => (names.head -> s) :: m) ) } def contents: ESP[(String, List[(Char, String)])] = lift("\\d+".r ^^ (_ -> Nil)) | rep1(paren).map( ps => ps.map(_.head._1).mkString -> ps.flatten ) def parse(s: String, names: Stream[Char]) = parseAll(paren.eval(names), s).map(_.toMap) } This works, and it's not that much less concise than either the mutable state version or the Parsec version. But my ExtraStateParsers is ugly as sin—I don't want to try your patience more than I already have, so I won't include it here (although here's a link, if you really want it). I've had to write new versions of every Parser and Parsers method I use above for my ExtraStateParsers and ESP types (rep1, ~>, <~, and |, in case you're counting). If I had needed to use other combinators, I'd have had to write new state transformer-level versions of them as well. Is there a cleaner way to do this? I'd love to see an example of a Scalaz 7's state monad transformer being used to thread state through a parser, but Scala 6 or Haskell examples would also be useful.

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• Grep... What patterns to extract href attributes, etc. with PHP's preg_grep?

  - by inktri

  Hi, I'm having trouble with grep.. Which four patterns should I use with PHP's preg_grep to extract all instances the "____" stuff in the strings below? 1. <h2><a ....>_____</a></h2> 2. <cite><a href="_____" .... >...</a></cite> 3. <cite><a .... >________</a></cite> 4. <span>_________</span> The dots denote some arbitrary characters while the underscores denote what I want. An example string is: </style></head> <body><div id="adBlock"><h2><a href="https://www.google.com/adsense/support/bin/request.py?contact=afs_violation&amp;hl=en" target="_blank">Ads by Google</a></h2> <div class="ad"><div><a href="http://www.google.com/aclk?sa=L&amp;ai=C4vfT4Sa3S97SLYO8NN6F-ckB5oq5sAGg6PKlDaT-kwUQASCF4p8UKARQtobS9AVgyZbRhsijoBnIAQGqBBxP0OSEnIsuRIv3ZERDm8GiSKZSnjrVf1kVq-_Y&amp;num=1&amp;sig=AGiWqtwG1qHnwpZ_5BNrjrzzXO5Or6EDMg&amp;q=http://www.crackle.com/c/Spider-Man_The_New_Animated_Series/%3Futm_source%3Dgoogle%26utm_medium%3Dcpc%26utm_campaign%3DGST_10016_CRKL_US_PRD_S_TeleV_SPID_Tele_Spider-Man%26utm_term%3Dspiderman%26utm_content%3Ds264Yjg9f_3472685742_487lrz1638" class="titleLink" target="_parent">Spider-<b>Man</b> Animated Serie</a></div> <span>See Your Favorite Spiderman <br> Episodes for Free. Only on Crackle.</span> <cite><a href="http://www.google.com/aclk?sa=L&amp;ai=C4vfT4Sa3S97SLYO8NN6F-ckB5oq5sAGg6PKlDaT-kwUQASCF4p8UKARQtobS9AVgyZbRhsijoBnIAQGqBBxP0OSEnIsuRIv3ZERDm8GiSKZSnjrVf1kVq-_Y&amp;num=1&amp;sig=AGiWqtwG1qHnwpZ_5BNrjrzzXO5Or6EDMg&amp;q=http://www.crackle.com/c/Spider-Man_The_New_Animated_Series/%3Futm_source%3Dgoogle%26utm_medium%3Dcpc%26utm_campaign%3DGST_10016_CRKL_US_PRD_S_TeleV_SPID_Tele_Spider-Man%26utm_term%3Dspiderman%26utm_content%3Ds264Yjg9f_3472685742_487lrz1638" class="domainLink" target="_parent">www.Crackle.com/Spiderman</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=CnQFi4Sa3S97SLYO8NN6F-ckB3M7nQtyU2PQEq6bCBRACIIXinxQoBFCm15KB-f____8BYMmW0YbIo6AZoAHiq_X-A8gBAaoEIU_Q9JKLiy1MiwdnHpZoBnmpR1J8pP2jpTwMx2uj2nN4WA&amp;num=2&amp;sig=AGiWqtwDrI5pWBCncdDc80FKt32AJMAQ6A&amp;q=http://www.costumeexpress.com/browse/TV-Movies/_/N-1z141uu/Ntt-batman/results1.aspx%3FREF%3DKNC-CEgoogle" class="titleLink" target="_parent">Kids <b>Batman</b> Costumes</a></div> <span>Great Selection of <b>Batman</b> &amp; Batgirl <br> Costumes For Kids. Ships Same Day!</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=CnQFi4Sa3S97SLYO8NN6F-ckB3M7nQtyU2PQEq6bCBRACIIXinxQoBFCm15KB-f____8BYMmW0YbIo6AZoAHiq_X-A8gBAaoEIU_Q9JKLiy1MiwdnHpZoBnmpR1J8pP2jpTwMx2uj2nN4WA&amp;num=2&amp;sig=AGiWqtwDrI5pWBCncdDc80FKt32AJMAQ6A&amp;q=http://www.costumeexpress.com/browse/TV-Movies/_/N-1z141uu/Ntt-batman/results1.aspx%3FREF%3DKNC-CEgoogle" class="domainLink" target="_parent">www.CostumeExpress.com</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=CAMYT4Sa3S97SLYO8NN6F-ckB3ZnWmgGdoNLrDaumwgUQAyCF4p8UKARQrqSVxwdgyZbRhsijoBmgAZH77uwDyAEBqgQYT9DU7oqLLEyLB2dHlxZFnQzyeg-yHt88&amp;num=3&amp;sig=AGiWqtzqAphZ9DLDiEFBJlb0Ou_1HyEyyA&amp;q=http://www.OfficialBatmanCostumes.com" class="titleLink" target="_parent"><b>Batman</b> Costume</a></div> <span>Official <b>Batman</b> Costumes. <br> Huge Selection &amp; Same Day Shipping!</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=CAMYT4Sa3S97SLYO8NN6F-ckB3ZnWmgGdoNLrDaumwgUQAyCF4p8UKARQrqSVxwdgyZbRhsijoBmgAZH77uwDyAEBqgQYT9DU7oqLLEyLB2dHlxZFnQzyeg-yHt88&amp;num=3&amp;sig=AGiWqtzqAphZ9DLDiEFBJlb0Ou_1HyEyyA&amp;q=http://www.OfficialBatmanCostumes.com" class="domainLink" target="_parent">www.OfficialBatmanCostumes.com</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=C767t4Sa3S97SLYO8NN6F-ckBkZfSfoOppaMHq6bCBRAEIIXinxQoBFDX2bw6YMmW0YbIo6AZoAHpprP8A8gBAaoEG0_QhJSMiytMiwdnHpZoF3g0Uj8_Vl2r4TpI_g&amp;num=4&amp;sig=AGiWqtyGO2DnFq_jMhP6ufj8pufT9sWQWA&amp;q=http://www.discountsuperherocostumes.com/batman-costumes.html" class="titleLink" target="_parent">Discount <b>Batman</b> Costumes</a></div> <span>Discount adult and kids <b>batman</b> <br> superhero costumes.</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=C767t4Sa3S97SLYO8NN6F-ckBkZfSfoOppaMHq6bCBRAEIIXinxQoBFDX2bw6YMmW0YbIo6AZoAHpprP8A8gBAaoEG0_QhJSMiytMiwdnHpZoF3g0Uj8_Vl2r4TpI_g&amp;num=4&amp;sig=AGiWqtyGO2DnFq_jMhP6ufj8pufT9sWQWA&amp;q=http://www.discountsuperherocostumes.com/batman-costumes.html" class="domainLink" target="_parent">www.discountsuperherocostumes.com</a></cite></div></div></body> <script type="text/javascript"> var relay = ""; </script> <script type="text/javascript" src="/uds/?file=ads&amp;v=1&amp;packages=searchiframe&amp;nodependencyload=true"></script></html> Thanks!

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• Using RJS to replace innerHTML with a real live instance variable.

  - by Steve Cotner

  I can't for the life of me get RJS to replace an element's innerHTML with an instance variable's attribute, i.e. something like @thing.name I'll show all the code (simplified from the actual project, but still complete), and I hope the solution will be forehead-slap obvious to someone... In RoR, I've made a simple page displaying a random Chinese character. This is a Word object with attributes chinese and english. Clicking on a link titled "What is this?" reveals the english attribute using RJS. Currently, it also hides the "What is this?" link and reveals a "Try Another?" link that just reloads the page, effectively starting over with a new random character. This is fine, but there are other elements on the page that make their own database queries, so I would like to load a new random character by an AJAX call, leaving the rest of the page alone. This has turned out to be harder than I expected: I have no trouble replacing the html using link_remote_to and page.replace_html, but I can't get it to display anything that includes an instance variable. I have a Word resource and a Page resource, which has a home page, where all this fun takes place. In the PagesController, I've made a couple ways to get random words. Either one works fine... Here's the code: class PagesController < ApplicationController def home all_words = Word.find(:all) @random_word = all_words.rand @random_words = Word.find(:all, :limit => 100, :order => 'rand()') @random_first = @random_words[1] end end As an aside, the SQL call with :limit => 100 is just in case I think of some way to cycle through those random words. Right now it's not useful. Also, the 'rand()' is MySQL specific, as far as I know. In the home page view (it's HAML), I have this: #character_box = render(:partial => "character", :object => @random_word) if @random_word #whatisthis = link_to_remote "? what is this?", :url => { :controller => 'words', :action => 'reveal_character' }, :html => { :title => "Click for the translation." } #tryanother.{:style => "display:none"} = link_to "try another?", root_path Note that the #'s in this case represent divs (with the given ids), not comments, because this is HAML. The "character" partial looks like this (it's erb, for no real reason): <div id="character"> <%= "#{@random_word.chinese}" } %> </div> <div id="revealed" style="display:none"> <ul> <li><span id="english"><%= "#{@random_word.english_name}" %></span></li> </ul> </div> The reveal_character.rjs file looks like this: page[:revealed].visual_effect :slide_down, :duration => '.2' page[:english].visual_effect :highlight, :startcolor => "#ffff00", :endcolor => "#ffffff", :duration => '2.5' page.delay(0.8) do page[:whatisthis].visual_effect :fade, :duration => '.3' page[:tryanother].visual_effect :appear end That all works perfectly fine. But if I try to turn link_to "try another?" into link_to_remote, and point it to an RJS template that replaces the "character" element with something new, it only works when I replace the innerHTML with static text. If I try to pass an instance variable in there, it never works. For instance, let's say I've defined a second random word under Pages#home... I'll add @random_second = @random_words[2] there. Then, in the home page view, I'll replace the "try another?" link (previously pointing to the root_path), with this: = link_to_remote "try another?", :url => { :controller => 'words', :action => 'second_character' }, :html => { :title => "Click for a new character." } I'll make that new RJS template, at app/views/words/second_character.rjs, and a simple test like this shows that it's working: page.replace_html("character", "hi") But if I change it to this: page.replace_html("character", "#{@random_second.english}") I get an error saying I fed it a nil object: ActionView::TemplateError (undefined method `english_name' for nil:NilClass) on line #1 of app/views/words/second_character.rjs: 1: page.replace_html("character", "#{@random_second.english}") Of course, actually instantiating @random_second, @random_third and so on ad infinitum would be ridiculous in a real app (I would eventually figure out some better way to keep grabbing a new random record without reloading the page), but the point is that I don't know how to get any instance variable to work here. This is not even approaching my ideal solution of rendering a partial that includes the object I specify, like this: page.replace_html 'character', :partial => 'new_character', :object => @random_second As I can't get an instance variable to work directly, I obviously cannot get it to work via a partial. I have tried various things like: :object => @random_second or :locals => { :random_second => @random_second } I've tried adding these all over the place -- in the link_to_remote options most obviously -- and studying what gets passed in the parameters, but to no avail. It's at this point that I realize I don't know what I'm doing. This is my first question here. I erred on the side of providing all necessary code, rather than being brief. Any help would be greatly appreciated.

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• linking jpeg image in html to php code

  - by Avtar Brar

  im creating a website which includes a button (JPEG image) that will locate ('a ref') a php file. I need the php to be called when the 'email.jpg' button is clicked on but only shows up as pure text in a web browser. any ideas on how to resolve this? any help is much appreciated! thanks MAIN HTML SITE CODE <div id="content-container"> <p align="center"><a href="video.mp4" class="html5lightbox" data-width="720" data-height="404"><img src="bg.jpg" width="1023" height="820" id="imgvideo" /></a> <div align="center"> <table width="1027" height="46" border="0" cellpadding="0px"> <tr> <td><a href="mail.php"><img src="email.png" width="130" height="46" /></a></td> </tr> </table> </div> </div> PHP FILE CODE (mail.php) <?php /*EMAIL TEMPLATE BEGINS*/ $imgSrc = 'bg.jpg'; $imgDesc = 'test_sell_new/'; $imgTitle = 'bg.jpg'; $subjectPara1 = 'Now Available'; $subjectPara2 = NULL; $subjectPara3 = NULL; $subjectPara4 = NULL; $subjectPara5 = NULL; $message = '<!DOCTYPE HTML>'. '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'. '"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'. '<html xmlns="http://www.w3.org/1999/xhtml">'. '<head>'. '<title>Available Now</title>'. '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />'. '</head>'. '<body style="background-color:#ffffff; padding:0; margin:-10px 0 0 0; _margin:0 0 0 0; *margin:0 0 0 0; text-align:center;">'. '<table border="0" cellpadding="0" cellspacing="0" width="1024" style="background-color:#ffffff; font-family:Arial, Helvetica, sans-serif; font-size:10px; padding-top:0px; margin:auto;">'. '<tr>'. '.<td><a href="index.html" style="text-decoration:none"><p style="color:#000000; text-align:center; margin:10px 0 0 0; *margin:0 0 0 0; _margin:0 0 0 0; font-family:Arial, Helvetica, sans-serif; font-size:11px;">Having trouble viewing this message? Click here.</p></a></td>'. '</tr>'. '<tr>'. '<td>'. '<table border="0" cellspacing="0" cellpadding="0" width="100%" height="820">'. '<tr>'. '<td>'. '<a href="index.html"><img src="bg.jpg" width="1024" height="820" border="0" /></a><br />'. '</td>'. '</tr>'. '</table>'. '</td>'. '</tr>'. '</table>'. '</body>'. /*EMAIL TEMPLATE ENDS*/ $to = '[email protected]'; $subject = 'IT WORKS!'; $from = '[email protected]'; $headers = "From: " . $from . "\r\n"; $headers .= "Reply-To: ". $from . "\r\n"; $headers .= "CC: [email protected]\r\n"; $headers .= "MIME-Version: 1.0\r\n"; $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n"; ?>

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• C#: Inheritance, Overriding, and Hiding

  - by Rosarch

  I'm having difficulty with an architectural decision for my C# XNA game. The basic entity in the world, such as a tree, zombie, or the player, is represented as a GameObject. Each GameObject is composed of at least a GameObjectController, GameObjectModel, and GameObjectView. These three are enough for simple entities, like inanimate trees or rocks. However, as I try to keep the functionality as factored out as possible, the inheritance begins to feel unwieldy. Syntactically, I'm not even sure how best to accomplish my goals. Here is the GameObjectController: public class GameObjectController { protected GameObjectModel model; protected GameObjectView view; public GameObjectController(GameObjectManager gameObjectManager) { this.gameObjectManager = gameObjectManager; model = new GameObjectModel(this); view = new GameObjectView(this); } public GameObjectManager GameObjectManager { get { return gameObjectManager; } } public virtual GameObjectView View { get { return view; } } public virtual GameObjectModel Model { get { return model; } } public virtual void Update(long tick) { } } I want to specify that each subclass of GameObjectController will have accessible at least a GameObjectView and GameObjectModel. If subclasses are fine using those classes, but perhaps are overriding for a more sophisticated Update() method, I don't want them to have to duplicate the code to produce those dependencies. So, the GameObjectController constructor sets those objects up. However, some objects do want to override the model and view. This is where the trouble comes in. Some objects need to fight, so they are CombatantGameObjects: public class CombatantGameObject : GameObjectController { protected new readonly CombatantGameModel model; public new virtual CombatantGameModel Model { get { return model; } } protected readonly CombatEngine combatEngine; public CombatantGameObject(GameObjectManager gameObjectManager, CombatEngine combatEngine) : base(gameObjectManager) { model = new CombatantGameModel(this); this.combatEngine = combatEngine; } public override void Update(long tick) { if (model.Health <= 0) { gameObjectManager.RemoveFromWorld(this); } base.Update(tick); } } Still pretty simple. Is my use of new to hide instance variables correct? Note that I'm assigning CombatantObjectController.model here, even though GameObjectController.Model was already set. And, combatants don't need any special view functionality, so they leave GameObjectController.View alone. Then I get down to the PlayerController, at which a bug is found. public class PlayerController : CombatantGameObject { private readonly IInputReader inputReader; private new readonly PlayerModel model; public new PlayerModel Model { get { return model; } } private float lastInventoryIndexAt; private float lastThrowAt; public PlayerController(GameObjectManager gameObjectManager, IInputReader inputReader, CombatEngine combatEngine) : base(gameObjectManager, combatEngine) { this.inputReader = inputReader; model = new PlayerModel(this); Model.Health = Constants.PLAYER_HEALTH; } public override void Update(long tick) { if (Model.Health <= 0) { gameObjectManager.RemoveFromWorld(this); for (int i = 0; i < 10; i++) { Debug.WriteLine("YOU DEAD SON!!!"); } return; } UpdateFromInput(tick); // .... } } The first time that this line is executed, I get a null reference exception: model.Body.ApplyImpulse(movementImpulse, model.Position); model.Position looks at model.Body, which is null. This is a function that initializes GameObjects before they are deployed into the world: public void Initialize(GameObjectController controller, IDictionary<string, string> data, WorldState worldState) { controller.View.read(data); controller.View.createSpriteAnimations(data, _assets); controller.Model.read(data); SetUpPhysics(controller, worldState, controller.Model.BoundingCircleRadius, Single.Parse(data["x"]), Single.Parse(data["y"]), bool.Parse(data["isBullet"])); } Every object is passed as a GameObjectController. Does that mean that if the object is really a PlayerController, controller.Model will refer to the base's GameObjectModel and not the PlayerController's overriden PlayerObjectModel? In response to rh: This means that now for a PlayerModel p, p.Model is not equivalent to ((CombatantGameObject)p).Model, and also not equivalent to ((GameObjectController)p).Model. That is exactly what I do not want. I want: PlayerController p; p.Model == ((CombatantGameObject)p).Model p.Model == ((GameObjectController)p).Model How can I do this? override?

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• Prim's MST algorithm implementation with Java

  - by user1290164

  I'm trying to write a program that'll find the MST of a given undirected weighted graph with Kruskal's and Prim's algorithms. I've successfully implemented Kruskal's algorithm in the program, but I'm having trouble with Prim's. To be more precise, I can't figure out how to actually build the Prim function so that it'll iterate through all the vertices in the graph. I'm getting some IndexOutOfBoundsException errors during program execution. I'm not sure how much information is needed for others to get the idea of what I have done so far, but hopefully there won't be too much useless information. This is what I have so far: I have a Graph, Edge and a Vertex class. Vertex class mostly just an information storage that contains the name (number) of the vertex. Edge class can create a new Edge that has gets parameters (Vertex start, Vertex end, int edgeWeight). The class has methods to return the usual info like start vertex, end vertex and the weight. Graph class reads data from a text file and adds new Edges to an ArrayList. The text file also tells us how many vertecis the graph has, and that gets stored too. In the Graph class, I have a Prim() -method that's supposed to calculate the MST: public ArrayList<Edge> Prim(Graph G) { ArrayList<Edge> edges = G.graph; // Copies the ArrayList with all edges in it. ArrayList<Edge> MST = new ArrayList<Edge>(); Random rnd = new Random(); Vertex startingVertex = edges.get(rnd.nextInt(G.returnVertexCount())).returnStartingVertex(); // This is just to randomize the starting vertex. // This is supposed to be the main loop to find the MST, but this is probably horribly wrong.. while (MST.size() < returnVertexCount()) { Edge e = findClosestNeighbour(startingVertex); MST.add(e); visited.add(e.returnStartingVertex()); visited.add(e.returnEndingVertex()); edges.remove(e); } return MST; } The method findClosesNeighbour() looks like this: public Edge findClosestNeighbour(Vertex v) { ArrayList<Edge> neighbours = new ArrayList<Edge>(); ArrayList<Edge> edges = graph; for (int i = 0; i < edges.size() -1; ++i) { if (edges.get(i).endPoint() == s.returnVertexID() && !visited(edges.get(i).returnEndingVertex())) { neighbours.add(edges.get(i)); } } return neighbours.get(0); // This is the minimum weight edge in the list. } ArrayList<Vertex> visited and ArrayList<Edges> graph get constructed when creating a new graph. Visited() -method is simply a boolean check to see if ArrayList visited contains the Vertex we're thinking about moving to. I tested the findClosestNeighbour() independantly and it seemed to be working but if someone finds something wrong with it then that feedback is welcome also. Mainly though as I mentioned my problem is with actually building the main loop in the Prim() -method, and if there's any additional info needed I'm happy to provide it. Thank you. Edit: To clarify what my train of thought with the Prim() method is. What I want to do is first randomize the starting point in the graph. After that, I will find the closest neighbor to that starting point. Then we'll add the edge connecting those two points to the MST, and also add the vertices to the visited list for checking later, so that we won't form any loops in the graph. Here's the error that gets thrown: Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 at java.util.ArrayList.rangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at Graph.findClosestNeighbour(graph.java:203) at Graph.Prim(graph.java:179) at MST.main(MST.java:49) Line 203: return neighbour.get(0); in findClosestNeighbour() Line 179: Edge e = findClosestNeighbour(startingVertex); in Prim()

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