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ActiveMQ example source code file (XStreamWireFormat.java)

This example ActiveMQ source code file (XStreamWireFormat.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

io, object, object, string, textwireformat, textwireformat, wireformat, xstream, xstream, xstreamwireformat, xstreamwireformat

The ActiveMQ XStreamWireFormat.java source code

 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.activemq.transport.xstream;

import java.io.Reader;

import com.thoughtworks.xstream.XStream;

import org.apache.activemq.command.Command;
import org.apache.activemq.transport.util.TextWireFormat;
import org.apache.activemq.wireformat.WireFormat;

 * A {@link WireFormat} implementation which uses the <a
 * href="http://xstream.codehaus.org/>XStream</a> library to marshall commands
 * onto the wire
public class XStreamWireFormat extends TextWireFormat {
    private XStream xStream;
    private int version;

    public int getVersion() {
        return version;

    public void setVersion(int version) {
        this.version = version;

    public WireFormat copy() {
        return new XStreamWireFormat();

    public Object unmarshalText(String text) {
        return (Command)getXStream().fromXML(text);

    public Object unmarshalText(Reader reader) {
        return (Command)getXStream().fromXML(reader);

    public String marshalText(Object command) {
        return getXStream().toXML(command);

     * Can this wireformat process packets of this version
     * @param version the version number to test
     * @return true if can accept the version
    public boolean canProcessWireFormatVersion(int version) {
        return true;

     * @return the current version of this wire format
    public int getCurrentWireFormatVersion() {
        return 1;

    // Properties
    // -------------------------------------------------------------------------
    public XStream getXStream() {
        if (xStream == null) {
            xStream = createXStream();
        return xStream;

    public void setXStream(XStream xStream) {
        this.xStream = xStream;

    // Implementation methods
    // -------------------------------------------------------------------------
    protected XStream createXStream() {
        return new XStream();


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