/**
* Asynchronous event publication service for requestSync().
*
* <p>requestSync() turns into this method via RemoteMessageTransport.
*
* <p>Remote objects uses this method to publish a request as event asynchronously.
*
* <p>Although this method is asynchronous, {@link RemoteTransactions} provides a synchronous
* method to wait for a response from another remote object.
*/
protected void publishRequestAsync(final int sno, final Request request) throws IOException {
BufferPacker pk = msgpack.createBufferPacker();
// write delivery header.
pk.write(TYPE_REQUEST);
pk.write(sno);
pk.write(getSourceDispatcherId());
// write delivery body.
pk.write(request);
byte[] message = pk.toByteArray();
String channel = request.objectId;
// PUBLISH
driverImpl.publish(channel, message);
if (log.isDebugEnabled()) {
log.debug(
"Request sent:\n"
+ " MessageDispatcher: {}\n"
+ " sno: {}\n"
+ " channel: {}\n"
+ " method: {}\n"
+ " objectId: {}\n"
+ " path: /{}/\n"
+ " body: {}",
sourceDispatcherId,
sno,
channel,
request.method,
request.objectId,
request.path,
request.getBodyValue());
}
}
/**
* Asynchronous event publication service for requestSync().
*
* <p>The response eventually reaches its originating method (requestSync()) via
* RemoteMessageTransport.
*/
public void publishResponseAsync(
final int sno, final String channel, final Request request, final Response response)
throws IOException {
BufferPacker pk = msgpack.createBufferPacker();
// write delivery header.
pk.write(TYPE_RESPONSE);
pk.write(sno);
pk.write(request.objectId);
// write delivery body.
pk.write(response);
byte[] message = pk.toByteArray();
// PUBLISH
driverImpl.publish(channel, message);
if (log.isDebugEnabled()) {
log.debug(
"Response returned:\n"
+ " MessageDispatcher: {}\n"
+ " channel: {}\n"
+ " statusCode: {}\n"
+ " body: {}",
sourceDispatcherId,
channel,
response.statusCode,
response.getBodyValue());
}
}
/**
* Asynchronous event publication service
*
* <p>Remote objects use this method to publish an event asynchronously.
*/
public void publishEventAsync(final Event event) throws IOException {
BufferPacker pk = msgpack.createBufferPacker();
// write delivery header.
pk.write(TYPE_EVENT);
pk.write(0);
pk.write("event");
// write delivery body.
pk.write(event);
byte[] message = pk.toByteArray();
String channel = channelString(event.publisherId, event.eventType);
// PUBLISH
driverImpl.publish(channel, message);
if (log.isDebugEnabled()) {
log.debug(
"Event sent:\n" + " MessageDispatcher: {}\n" + " channel: {}\n" + " body: {}",
sourceDispatcherId,
channel,
event.getBodyValue());
}
}
