/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.transport.ws.jetty9;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.transport.stomp.Stomp;
import org.apache.activemq.transport.stomp.StompFrame;
import org.apache.activemq.transport.ws.AbstractStompSocket;
import org.apache.activemq.util.IOExceptionSupport;
import org.eclipse.jetty.websocket.api.Session;
import org.eclipse.jetty.websocket.api.WebSocketListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Implements web socket and mediates between servlet and the broker
*/
public class StompSocket extends AbstractStompSocket implements WebSocketListener {
private static final Logger LOG = LoggerFactory.getLogger(StompSocket.class);
private final int ORDERLY_CLOSE_TIMEOUT = 10;
private Session session;
public StompSocket(String remoteAddress) {
super(remoteAddress);
}
@Override
public void sendToStomp(StompFrame command) throws IOException {
try {
//timeout after a period of time so we don't wait forever and hold the protocol lock
session.getRemote().sendStringByFuture(command.format()).get(getDefaultSendTimeOut(), TimeUnit.SECONDS);
} catch (Exception e) {
throw IOExceptionSupport.create(e);
}
}
@Override
public void handleStopped() throws IOException {
if (session != null && session.isOpen()) {
session.close();
}
}
//----- WebSocketListener event callbacks --------------------------------//
@Override
public void onWebSocketBinary(byte[] arg0, int arg1, int arg2) {
}
@Override
public void onWebSocketClose(int arg0, String arg1) {
try {
if (protocolLock.tryLock() || protocolLock.tryLock(ORDERLY_CLOSE_TIMEOUT, TimeUnit.SECONDS)) {
LOG.debug("Stomp WebSocket closed: code[{}] message[{}]", arg0, arg1);
protocolConverter.onStompCommand(new StompFrame(Stomp.Commands.DISCONNECT));
}
} catch (Exception e) {
LOG.debug("Failed to close STOMP WebSocket cleanly", e);
} finally {
if (protocolLock.isHeldByCurrentThread()) {
protocolLock.unlock();
}
}
}
@Override
public void onWebSocketConnect(Session session) {
this.session = session;
}
@Override
public void onWebSocketError(Throwable arg0) {
}
@Override
public void onWebSocketText(String data) {
processStompFrame(data);
}
private static int getDefaultSendTimeOut() {
return Integer.getInteger("org.apache.activemq.transport.ws.StompSocket.sendTimeout", 30);
}
}