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From "Ivelin Ivanov" <ive...@apache.org>
Subject Re: WebServiceProxy
Date Mon, 22 Jul 2002 00:02:09 GMT

Interesting case.

Appears that two sessions are crossing each other's ways.

I have tried multiple browsers with multiple sessions working against the
same Feedback wizard, to test for this.
WSProxy uses the jakarta HttpClient library, which saves and reuses the
cookies, thus the session, if started by the remote application.

Maybe you will need to dump all HTTP headers to be able to track down the
problem.
Once you identify it, please let me know what it is, so we can discuss a
possible patch.


Cheers,

Ivelin



----- Original Message -----
From: "Michael Wechner" <michael.wechner@wyona.org>
To: <cocoon-dev@xml.apache.org>
Sent: Sunday, July 21, 2002 10:29 PM
Subject: WebServiceProxy


> Hi
>
> I started to check the WebServiceProxy.
>
> I am using Linux (2.4) JDK1.3.1 and Tomcat 4.0.4-b3 and
> xml-cocoon2_20020719041901.tar.gz (2.1-dev)
>
> I included the following pipeline into the sitemap
>
>      <map:match pattern="HelloWorld">
>         <map:generate type="wsproxy"
> src="http://localhost:8080/wyona-cms/servlet/HelloWorld" labe
> l="xml"/>
>         <map:serialize type="xml"/>
>       </map:match>
>
> The HelloWorld servlet returns the following XML
>
> <servlet class="org.wyona.cms.cocoon.generation.HelloWorld">
> <request method="GET"><nosession/></request></servlet>
>
> Because I forgot the line <?xml version="1.0"?> I received an error,
> but then the problem was that "samples/webserviceproxy" didn't run
> anymore, which means I received a broken pipe error.
>
> After I inserted the line <?xml version="1.0"?> it seemed to be alright.
>
> But when I started to create a session, then it broke again. I checked
> the same cocoon instance with another browser, which didn't have a session
yet.
> It worked. As soon as I created a session, the WebServiceProxy crashed for
this client.
> Please see below the stack trace.
> I guess it must have something to do with "passing the session" resp.
"passing the cookies".
> But I didn't find anything within your code, where you would do something
like that.
>
>
> Thanks
>
> Michael
>
> Original exception : java.io.IOException: Broken pipe
> at java.net.SocketOutputStream.socketWrite(Native Method)
> at java.net.SocketOutputStream.write(SocketOutputStream.java:71)
> at
>
org.apache.commons.httpclient.HttpConnection.write(HttpConnection.java:363)
> at
>
org.apache.commons.httpclient.HttpConnection.print(HttpConnection.java:433)
> at
>
org.apache.commons.httpclient.HttpMethodBase.writeRequestHeaders(HttpMethodB
ase.java:741)
> at
>
org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.jav
a:693)
> at
>
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:469
)
> at
>
org.apache.commons.httpclient.HttpMultiClient.executeMethod(HttpMultiClient.
java:286)
> at
>
org.apache.cocoon.generation.WebServiceProxyGenerator.fetch(WebServiceProxyG
enerator.java:254)
> at
>
org.apache.cocoon.generation.WebServiceProxyGenerator.generate(WebServicePro
xyGenerator.java:172)
> at
>
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLP
ipeline(AbstractProcessingPipeline.java:501)
> at
>
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline
.processXMLPipeline(AbstractCachingProcessingPipeline.java:204)
> at
>
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(Abs
tractProcessingPipeline.java:476)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(Seri
alizeNode.java:146)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:83)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
e(PreparableMatchNode.java:160)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
ineNode.java:157)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe
linesNode.java:152)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:328)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:309)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod
e.java:131)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:83)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
e(PreparableMatchNode.java:160)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
ineNode.java:157)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe
linesNode.java:152)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:328)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:309)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNod
e.java:131)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:83)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invok
e(PreparableMatchNode.java:160)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(Pipel
ineNode.java:157)
> at
>
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invo
keNodes(AbstractParentProcessingNode.java:107)
> at
>
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(Pipe
linesNode.java:152)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:328)
> at
>
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcess
or.java:309)
> at org.apache.cocoon.Cocoon.process(Cocoon.java:585)
> at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:997)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
> at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
> at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:190)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
> at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> at
>
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
> at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
> at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
> at
>
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
>
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
1027)
> at
>
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125
)
> at java.lang.Thread.run(Thread.java:484)
>
>
>
>
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