private void handleRequest(
StreamInput stream,
long requestId,
int messageLengthBytes,
LocalTransport sourceTransport,
Version version)
throws Exception {
stream = new NamedWriteableAwareStreamInput(stream, namedWriteableRegistry);
final String action = stream.readString();
transportServiceAdapter.onRequestReceived(requestId, action);
inFlightRequestsBreaker()
.addEstimateBytesAndMaybeBreak(messageLengthBytes, "<transport_request>");
final LocalTransportChannel transportChannel =
new LocalTransportChannel(
this,
transportServiceAdapter,
sourceTransport,
action,
requestId,
version,
messageLengthBytes);
try {
final RequestHandlerRegistry reg = transportServiceAdapter.getRequestHandler(action);
if (reg == null) {
throw new ActionNotFoundTransportException("Action [" + action + "] not found");
}
final TransportRequest request = reg.newRequest();
request.remoteAddress(sourceTransport.boundAddress.publishAddress());
request.readFrom(stream);
if (ThreadPool.Names.SAME.equals(reg.getExecutor())) {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
} else {
threadPool
.executor(reg.getExecutor())
.execute(
new AbstractRunnable() {
@Override
protected void doRun() throws Exception {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
}
@Override
public boolean isForceExecution() {
return reg.isForceExecution();
}
@Override
public void onFailure(Throwable e) {
if (lifecycleState() == Lifecycle.State.STARTED) {
// we can only send a response transport is started....
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn(
"Failed to send error message back to client for action [{}]",
e1,
action);
logger.warn("Actual Exception", e);
}
}
}
});
}
} catch (Throwable e) {
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn("Failed to send error message back to client for action [{}]", e, action);
logger.warn("Actual Exception", e1);
}
}
}