001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.transport;
018
019import java.io.IOException;
020
021/**
022 * 
023 */
024public class MutexTransport extends TransportFilter {
025
026    private final Object writeMutex = new Object();
027
028    public MutexTransport(Transport next) {
029        super(next);
030    }
031
032    public FutureResponse asyncRequest(Object command, ResponseCallback responseCallback) throws IOException {
033        synchronized (writeMutex) {
034            return next.asyncRequest(command, null);
035        }
036    }
037
038    public void oneway(Object command) throws IOException {
039        synchronized (writeMutex) {
040            next.oneway(command);
041        }
042    }
043
044    public Object request(Object command) throws IOException {
045        synchronized (writeMutex) {
046            return next.request(command);
047        }
048    }
049
050    public Object request(Object command, int timeout) throws IOException {
051        synchronized (writeMutex) {
052            return next.request(command, timeout);
053        }
054    }
055
056    public String toString() {
057        return next.toString();
058    }
059
060}