Fyi, When I replace the source of DatabaseReader in cocoon-2.1 with the source of the same class of cocoon 2.0.3, and after changes for the validity stuff, the class works correctly.
-----Original Message----- From: Vincent De Groote [mailto:[EMAIL PROTECTED] Sent: 05 August 2003 14:09 To: [EMAIL PROTECTED] Subject: RE: Database Reader exception I made the requested test with the daily snapshot downloaded this night (cocoon-2.1_20030805041644), and I have the same problem (see the stack trace below) with the sample of image upload. The only changed parameters are the 'enable-upload' parameter in web.xml, and the logging levels in logkit.xconf Each time I upload an image, a small red cross in a square (as when an image is not available) is added at the top of the page. So I suppose the upload was successful, but not the download. I'm an (old) c programmer, but new with the java language and cocoon architecture. As explained, the cast exception is raised when assigning the result of manager.lookup function is assigned to ComponentSelector handle. The returned value seems to be a ServiceSelector. So I suppose the exception is raised because the types does not match. I was previously working with cocoon.2-0-3, and the functionnality worked correctly. The DatabaseReader class changed from 'composable' to 'serviceable'. Is these changes not the source of the error ? Without understanding of the architecture of cocoon, I can't solve the problem myself. So I hope someone can help. Here is the trace found in sitemap.log: DEBUG (2003-08-05) 13:49.02:768 [sitemap] (/samples/databases/mod-db/image/2) PoolThread-4/ExcaliburComponentSelector: readers: ComponentSelector could not access the Component for hint [databasereader] java.lang.ClassCastException at org.apache.cocoon.reading.DatabaseReader.service(DatabaseReader.java:112) at org.apache.avalon.framework.container.ContainerUtil.service(ContainerUtil.ja va:181) at org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(De faultComponentFactory.java:298) at org.apache.avalon.excalibur.pool.ResourceLimitingPool.newPoolable(ResourceLi mitingPool.java:672) at org.apache.avalon.excalibur.pool.ResourceLimitingPool.get(ResourceLimitingPo ol.java:402) at org.apache.avalon.excalibur.component.PoolableComponentHandler.doGet(Poolabl eComponentHandler.java:231) at org.apache.avalon.excalibur.component.ComponentHandler.get(ComponentHandler. java:408) at org.apache.avalon.excalibur.component.ExcaliburComponentSelector.select(Exca liburComponentSelector.java:244) at org.apache.cocoon.components.ExtendedComponentSelector.select(ExtendedCompon entSelector.java:303) at org.apache.cocoon.components.ExtendedComponentSelector.select(ExtendedCompon entSelector.java:307) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setReader(A bstractProcessingPipeline.java:347) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline .setReader(AbstractCachingProcessingPipeline.java:186) at org.apache.cocoon.components.treeprocessor.sitemap.ReadNode.invoke(ReadNode. java:105) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok e(PreparableMatchNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel ineNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe linesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:327) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:309) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod e.java:133) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok e(PreparableMatchNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel ineNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe linesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:327) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:309) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod e.java:133) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok e(PreparableMatchNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel ineNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe linesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:327) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:309) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod e.java:133) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok e(PreparableMatchNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel ineNode.java:164) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo keNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe linesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:327) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess or.java:309) at org.apache.cocoon.Cocoon.process(Cocoon.java:621) at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1096) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandl er.java:294) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558) at org.mortbay.http.HttpContext.handle(HttpContext.java:1714) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext .java:507) at org.mortbay.http.HttpContext.handle(HttpContext.java:1664) at org.mortbay.http.HttpServer.service(HttpServer.java:863) at org.mortbay.http.HttpConnection.service(HttpConnection.java:775) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455) -----Original Message----- From: Geoff Howard [mailto:[EMAIL PROTECTED] Sent: 05 August 2003 13:20 To: [EMAIL PROTECTED] Subject: Re: Database Reader exception Vincent De Groote wrote: > Hello, > > I cannot make the databaseReader work correctly: > > In Cocoon-2.1rc1, source file DatabaseReader.java, a > java.lang.ClassCastException is raised in the 'service' function, when the > value returned by the manager.lookup function is assigned to the dbselector > variable. The value returned is not null. > > The database referenced works properly in other parts of the installation, > so I suppose this is not the problem. > > Any idea why this error occurs ? > > Thank you You'll probably need to send snippets of your config, sitemap, and stack trace. I think the DatabaseReader is used in one of the samples in the database block to demonstrate file uploads to blobs using the [input]ModularDatabaseActions. It will require the hsql block built as well. Does it work there? Geoff --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
