/*
* Copyright 2012 JBoss, by Red Hat, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.bus.server.io;
import org.jboss.errai.bus.client.api.messaging.Message;
import org.jboss.errai.bus.client.util.BusToolsCli;
import org.jboss.errai.bus.server.api.MessageQueue;
import org.jboss.errai.bus.server.util.LocalContext;
import org.jboss.errai.marshalling.server.util.UnwrappedByteArrayOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* @author Mike Brock
*/
public class DirectDeliveryHandler implements MessageDeliveryHandler, Wakeable, DirectChannel {
private static final Logger log = LoggerFactory.getLogger(DirectDeliveryHandler.class);
private final QueueChannel directSocketChannel;
public static MessageDeliveryHandler createFor(final QueueChannel channel) {
return new DirectDeliveryHandler(channel);
}
private DirectDeliveryHandler(final QueueChannel directSocketChannel) {
this.directSocketChannel = directSocketChannel;
}
@Override
public boolean deliver(final MessageQueue queue, final Message message) throws IOException {
try {
directSocketChannel.write("[" + BusToolsCli.encodeMessage(message) + "]");
return true;
}
catch (Throwable e) {
log.info("error writing to socket for queue " + queue.getSession().getSessionId());
LocalContext.get(queue.getSession()).destroy();
queue.stopQueue();
e.printStackTrace();
return false;
}
}
@Override
public void onWake(MessageQueue queue) throws IOException {
UnwrappedByteArrayOutputStream outputStream = new UnwrappedByteArrayOutputStream();
ByteWriteAdapter adapter = new OutputStreamWriteAdapter(outputStream);
queue.getBuffer().read(adapter, queue.getBufferColor(), new MultiMessageFilter());
directSocketChannel.write(new String(outputStream.toByteArray(), 0, outputStream.size()));
}
@Override
public void noop(MessageQueue queue) throws IOException {
}
@Override
public boolean isConnected() {
return directSocketChannel.isConnected();
}
}