/**
* Runs a pipeline with a given producer. <br>
* Full cycle of {@link DocumentProducer#init()}, {@link DocumentProducer#close()}/{@link
* DocumentProducer#fail()} is called on <tt>producer</tt>.
*
* @param producer the <tt>DocumentProducer</tt> for the run.
* @param pipeline the pipeline to run.
* @return <tt>true</tt> only if {@link Pipeline#run(Iterable) Pipeline.run(producer)} returned
* <tt>true</tt>, otherwise <tt>false</tt>.
*/
public static boolean runPipeline(DocumentProducer producer, Pipeline pipeline) {
boolean success = false;
try {
producer.init();
if (PipelineExceptionListener.class.isAssignableFrom(producer.getClass())) {
pipeline
.getPipelineExceptionHandler()
.addExceptionListener((PipelineExceptionListener) producer);
}
success = pipeline.run(producer);
} finally {
if (PipelineExceptionListener.class.isAssignableFrom(producer.getClass())) {
pipeline
.getPipelineExceptionHandler()
.removeExceptionListener((PipelineExceptionListener) producer);
}
if (success) {
producer.close();
} else {
producer.fail();
}
}
return success;
}
