I'm trying to create a pipeline in the background using a thread. My
flowscript looks like this:
function create_pdf() {
var output_file=java.io.File.createTempFile("temp",".pdf");
var output_stream=new MyOutputStream(output_file);
//
var r = new java.lang.Runnable() {
run: function() {
cocoon.processPipelineTo("pdf-create-pipeline'',output_stream);
output_stream.close();
}
};
new java.lang.Thread(r).start();
// Display the waiting page until file is closed
while(!output_stream.isClosed()) {
cocoon.sendPageAndWait("progress.jx",{ "length" :
output_stream.length(), "output_path" : output_file.getCanonicalPath(), });
}
// send the page
cocoon.sendPage( "pdf-send-pipeline", {file_name :
output_file.getCanonicalPath() } );
}
}
I know the thread is working, but it seems I'm missing something cocoon
related that I must initialize in the thread. I get the following exception:
Exception in thread "Thread-19" org.mozilla.javascript.WrappedException:
Wrapped org.apache.avalon.framework.CascadingRuntimeException: Unable to
get the object model from the context.
(file:/C:/cocoon/msim_app/msim/flow/print_pdf.js#28)
at
org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Context.java:1693)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:160)
at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:471)
at
org.mozilla.javascript.Interpreter.interpretLoop(Interpreter.java:3085)
at script(file:/C:/cocoon/msim_app/msim/flow/print_pdf.js:28)
at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:2251)
at
org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:161)
at
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:340)
at
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2758)
at
org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:159)
at org.mozilla.javascript.Context.call(Context.java:499)
at org.mozilla.javascript.JavaAdapter.callMethod(JavaAdapter.java:492)
at adapter1.run(<adapter>)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.avalon.framework.CascadingRuntimeException: Unable
to get the object model from the context.
at
org.apache.cocoon.components.ContextHelper.getObjectModel(ContextHelper.java:92)
at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.setupView(FOM_JavaScriptInterpreter.java:877)
at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.process(FOM_JavaScriptInterpreter.java:872)
at
org.apache.cocoon.components.flow.javascript.fom.FOM_Cocoon.jsFunction_processPipelineTo(FOM_Cocoon.java:286)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:145)
... 11 more
Caused by: org.apache.avalon.framework.context.ContextException: Unable
to locate object-model (No environment available)
at
org.apache.cocoon.components.ComponentContext.get(ComponentContext.java:96)
at
org.apache.cocoon.components.ContextHelper.getObjectModel(ContextHelper.java:90)
... 19 more
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