public void process(Exchange exchange) throws Exception {
TracedRouteNodes traced = exchange.getUnitOfWork().getTracedRouteNodes();
// get the list of intercepted nodes
List<RouteNode> list = traced.getNodes();
// get the 3rd last as its the bean
Processor last = list.get(list.size() - 3).getProcessor();
// wrapped by JMX
if (last instanceof InstrumentationProcessor) {
InstrumentationProcessor ip = (InstrumentationProcessor) last;
last = ip.getProcessor();
}
// set error message
exchange.getOut().setFault(true);
exchange.getOut().setBody("Failed at: " + last.toString());
}
/**
* Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send
* out.
*
* <p>You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as
* they need to be specially prepared before use.
*
* @param index the index
* @param processor the processor
* @param exchange the exchange
* @param routeContext the route context
* @return prepared for use
*/
protected ProcessorExchangePair createProcessorExchangePair(
int index, Processor processor, Exchange exchange, RouteContext routeContext) {
Processor prepared = processor;
// set property which endpoint we send to
setToEndpoint(exchange, prepared);
// rework error handling to support fine grained error handling
prepared = createErrorHandler(routeContext, exchange, prepared);
// invoke on prepare on the exchange if specified
if (onPrepare != null) {
try {
onPrepare.process(exchange);
} catch (Exception e) {
exchange.setException(e);
}
}
return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
public void process(Exchange exchange) throws Exception {
// Bad Hack - Need to remote it and fix it in Camel (if it's a camel problem)
// I need to copy the body of the exachange because for some reason
// the getContext().getEndpoint() erase the content/or loose the reference
String body = exchange.getIn().getBody(String.class);
if (dep == null) {
this.dep = exchange.getContext().getEndpoint(this.droolsUri, DroolsEndpoint.class);
}
if (dep == null) {
throw new RuntimeException("Could not find DroolsEndPoint for uri=" + this.droolsUri);
}
ClassLoader originalClassLoader = null;
try {
originalClassLoader = Thread.currentThread().getContextClassLoader();
CommandExecutor exec = dep.executor;
if (exec == null) {
String lookup = exchange.getIn().getHeader(DroolsComponent.DROOLS_LOOKUP, String.class);
if (StringUtils.isEmpty(lookup)) {
// Bad Hack - Need to remote it and fix it in Camel (if it's a camel problem)
lookup = dep.getLookup(body);
// lookup = dep.getLookup( exchange.getIn().getBody( String.class ) );
}
if (StringUtils.isEmpty(lookup)) {
throw new RuntimeException(
"No Executor defined and no lookup information available for uri "
+ this.dep.getEndpointUri());
}
exec = dep.getCommandExecutor(lookup);
}
if (exec == null) {
throw new RuntimeException(
"CommandExecutor cannot be found for uri " + this.dep.getEndpointUri());
}
ClassLoader localClassLoader = dep.getClassLoader(exec);
if (localClassLoader == null) {
throw new RuntimeException(
"CommandExecutor Classloader cannot be null for uri " + this.dep.getEndpointUri());
}
// Set the classloader to the one used by the CommandExecutor
Thread.currentThread().setContextClassLoader(localClassLoader);
ExecutionNodePipelineContextImpl context =
new ExecutionNodePipelineContextImpl(dep.node, localClassLoader);
context.setCommandExecutor(exec);
exchange.setProperty("drools-context", context);
// Bad Hack - Need to remote it and fix it in Camel (if it's a camel problem)
// I need to re set the Body because the exchange loose the content at
// the begining of the method
exchange.getIn().setBody(new ByteArrayInputStream(body.getBytes("UTF-8")));
boolean soap = false;
if (!augmented && exchange.getFromEndpoint() instanceof CxfSpringEndpoint) {
new PreCxfTransportSoapProcessor().process(exchange);
soap = true;
}
processor.process(exchange);
if (soap) {
new PostCxfTransportSoapProcessor().process(exchange);
}
} finally {
Thread.currentThread().setContextClassLoader(originalClassLoader);
}
}
