Mark Lundquist wrote:
On Dec 15, 2005, at 7:45 AM, Fawzib Rojas wrote:
Is there a way to create a thread in flowscript and have the
"cocoon.processPipeline" run in it?
Yes, definitely...
Well I tried it but it isnt working, If I set use_thread=false it
works, if I set use_thread=true. I know the pdf_runnable object is
working because pdf_runnable.process() works, but when I call it from
the thread it fails. I get some errors in the console and logs, they
are after the script. Can anyone give a hand with this, I'm very close...
function main() {
var use_thread=true;
// get path
var
path=cocoon.parameters["report"]+".pdf_pipe?"+getRequestParameters();
// create runnable
var pdf_runnable=new java.lang.Runnable(
{ "complete": false,
"count": 0,
"url":path,
"error":"no error",
"cocoon": cocoon,
"out_stream":new java.io.ByteArrayOutputStream(),
"run": function(){
this.process();
this.complete=true;
},
"process": function(){
this.cocoon.processPipelineTo(this.url,'',this.out_stream);
}
}
);
//
if(use_thread){
var pdf_thread=new java.lang.Thread(pdf_runnable);
pdf_thread.start();
// wait until thread is done
pdf_runnable.count=0;
while(pdf_runnable.complete==false) {
cocoon.sendPageAndWait("progress.jx", { "stream_size" :
pdf_runnable.out_stream.size(),"count":pdf_runnable.count } );
pdf_runnable.count++;
}
}else{
pdf_runnable.process();
}
//
cocoon.sendPage(
"pdf-display/"+path,
{byteArray : new
java.io.ByteArrayInputStream(pdf_runnable.out_stream.toByteArray())}
);
}
Console error:
java.lang.NullPointerException
at
org.apache.cocoon.environment.AbstractEnvironment.release(AbstractEnvironment.java:539)
at
org.apache.cocoon.environment.wrapper.MutableEnvironmentFacade.release(MutableEnvironmentFacade.java:320)
at
org.apache.cocoon.transformation.TraxTransformer.recycle(TraxTransformer.java:514)
at
org.apache.avalon.excalibur.pool.ResourceLimitingPool.put(ResourceLimitingPool.java:438)
at
org.apache.avalon.excalibur.component.PoolableComponentHandler.doPut(PoolableComponentHandler.java:212)
at
org.apache.avalon.excalibur.component.ComponentHandler.put(ComponentHandler.java:425)
at
org.apache.avalon.excalibur.component.ExcaliburComponentSelector.release(ExcaliburComponentSelector.java:305)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:284)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:281)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.recycle(AbstractProcessingPipeline.java:650)
at
org.apache.cocoon.components.pipeline.impl.BaseCachingProcessingPipeline.recycle(BaseCachingProcessingPipeline.java:77)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.recycle(AbstractCachingProcessingPipeline.java:948)
at
org.apache.avalon.excalibur.pool.ResourceLimitingPool.put(ResourceLimitingPool.java:438)
at
org.apache.avalon.excalibur.component.PoolableComponentHandler.doPut(PoolableComponentHandler.java:212)
at
org.apache.avalon.excalibur.component.ComponentHandler.put(ComponentHandler.java:425)
at
org.apache.avalon.excalibur.component.ExcaliburComponentSelector.release(ExcaliburComponentSelector.java:305)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:284)
at
org.apache.cocoon.components.EnvironmentDescription.release(CocoonComponentManager.java:599)
at
org.apache.cocoon.components.CocoonComponentManager.endProcessing(CocoonComponentManager.java:204)
at org.apache.cocoon.Cocoon.process(Cocoon.java:683)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1098)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:354)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1808)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1758)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:501)
org.mozilla.javascript.WrappedException: WrappedException of
at (file:/opt/cocoon/build/webapp/msim/flow/print_pdf.js, Line 32):
org.mozilla.javascript.WrappedException: WrappedException of
at (file:/opt/cocoon/build/webapp/msim/flow/print_pdf.js, Line 36):
org.apache.excalibur.source.SourceException: Exception during
processing of cocoon://msim/MonitorList-corrections.pdf_pipe?
at
org.mozilla.javascript.WrappedException.wrapException(WrappedException.java:111)
at org.mozilla.javascript.JavaAdapter.callMethod(JavaAdapter.java:390)
at adapter0.run(<adapter>)
at java.lang.Thread.run(Thread.java:534)
Error in the logs:
org.apache.cocoon.ProcessingException: Unable to remove component from
automatic release: no environment available.
at
org.apache.cocoon.components.CocoonComponentManager.removeFromAutomaticRelease(CocoonComponentManager.java:448)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.release(AbstractProcessingPipeline.java:173)
at
org.apache.cocoon.components.source.impl.SitemapSource.reset(SitemapSource.java:454)
at
org.apache.cocoon.components.source.impl.SitemapSource.recycle(SitemapSource.java:477)
at
org.apache.cocoon.components.source.impl.SitemapSourceFactory.release(SitemapSourceFactory.java:78)
at
org.apache.excalibur.source.impl.SourceResolverImpl.release(SourceResolverImpl.java:269)
at
org.apache.cocoon.components.CocoonComponentManager.release(CocoonComponentManager.java:507)
at
org.apache.cocoon.components.CocoonComponentManager.release(CocoonComponentManager.java:507)
at
org.apache.cocoon.components.CocoonComponentManager.release(CocoonComponentManager.java:507)
at
org.apache.cocoon.environment.AbstractEnvironment.release(AbstractEnvironment.java:539)
at
org.apache.cocoon.environment.wrapper.MutableEnvironmentFacade.release(MutableEnvironmentFacade.java:320)
at
org.apache.cocoon.generation.FileGenerator.recycle(FileGenerator.java:64)
at
org.apache.avalon.excalibur.pool.ResourceLimitingPool.put(ResourceLimitingPool.java:438)
at
org.apache.avalon.excalibur.component.PoolableComponentHandler.doPut(PoolableComponentHandler.java:212)
at
org.apache.avalon.excalibur.component.ComponentHandler.put(ComponentHandler.java:425)
at
org.apache.avalon.excalibur.component.ExcaliburComponentSelector.release(ExcaliburComponentSelector.java:305)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:284)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:281)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.recycle(AbstractProcessingPipeline.java:638)
at
org.apache.cocoon.components.pipeline.impl.BaseCachingProcessingPipeline.recycle(BaseCachingProcessingPipeline.java:77)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.recycle(AbstractCachingProcessingPipeline.java:948)
at
org.apache.avalon.excalibur.pool.ResourceLimitingPool.put(ResourceLimitingPool.java:438)
at
org.apache.avalon.excalibur.component.PoolableComponentHandler.doPut(PoolableComponentHandler.java:212)
at
org.apache.avalon.excalibur.component.ComponentHandler.put(ComponentHandler.java:425)
at
org.apache.avalon.excalibur.component.ExcaliburComponentSelector.release(ExcaliburComponentSelector.java:305)
at
org.apache.cocoon.components.ExtendedComponentSelector.release(ExtendedComponentSelector.java:284)
at
org.apache.cocoon.components.EnvironmentDescription.release(CocoonComponentManager.java:599)
at
org.apache.cocoon.components.CocoonComponentManager.endProcessing(CocoonComponentManager.java:204)
at org.apache.cocoon.Cocoon.process(Cocoon.java:683)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1098)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:354)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1808)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1758)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:501)
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