pipeline = getWebxConfiguration().getPipeline();
log.debug("Using Pipeline: {}", pipeline);
}
public boolean service(RequestContext requestContext) throws Exception {
PipelineInvocationHandle handle = pipeline.newInvocation();
handle.invoke();
// ����pipeline���жϣ�����������δ������filter��ת��chain�м�����������
return !handle.isBroken();
}