ActiveMQ example source code file (JettisonMappedXmlDriver.java)

This example ActiveMQ source code file (JettisonMappedXmlDriver.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

hierarchicalstreamreader, hierarchicalstreamwriter, io, jettisonmappedxmldriver, jettisonmappedxmldriver, mappednamespaceconvention, mappedxmloutputfactory, qnamemap, qnamemap, staxreader, staxwriter, streamexception, streamexception, xmlstreamexception, xmlstreamexception

The ActiveMQ JettisonMappedXmlDriver.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,
 * 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.
 */

/*
 * Copyright (c) 2007, 2008 XStream Committers.
 * All rights reserved.
 *
 * The software in this package is published under the terms of the BSD
 * style license a copy of which has been included with this distribution in
 * the LICENSE.txt file.
 * 
 * Created on 30. March 2007 by Joerg Schaible
 */
package org.apache.activemq.util;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;

import javax.xml.stream.XMLStreamException;

import org.codehaus.jettison.mapped.Configuration;
import org.codehaus.jettison.mapped.MappedNamespaceConvention;
import org.codehaus.jettison.mapped.MappedXMLInputFactory;
import org.codehaus.jettison.mapped.MappedXMLOutputFactory;

import com.thoughtworks.xstream.io.HierarchicalStreamDriver;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.StreamException;
import com.thoughtworks.xstream.io.json.JettisonStaxWriter;
import com.thoughtworks.xstream.io.xml.QNameMap;
import com.thoughtworks.xstream.io.xml.StaxReader;
import com.thoughtworks.xstream.io.xml.StaxWriter;


/**
 * 
 * Temporary used until XStream 1.3.2 is released
 * 
 * Simple XStream driver wrapping Jettison's Mapped reader and writer. Serializes object from
 * and to JSON.
 * 
 * @author Dejan Bosanac
 */
public class JettisonMappedXmlDriver implements HierarchicalStreamDriver {

    private final MappedXMLOutputFactory mof;
    private final MappedXMLInputFactory mif;
    private final MappedNamespaceConvention convention;
    private boolean useSerializeAsArray = true;

    public JettisonMappedXmlDriver() {
        this(new Configuration(), true);
    }

    public JettisonMappedXmlDriver(final Configuration config, final boolean useSerializeAsArray) {
        mof = new MappedXMLOutputFactory(config);
        mif = new MappedXMLInputFactory(config);
        convention = new MappedNamespaceConvention(config);
        this.useSerializeAsArray = useSerializeAsArray;
    }
    
    public HierarchicalStreamReader createReader(final Reader reader) {
        try {
            return new StaxReader(new QNameMap(), mif.createXMLStreamReader(reader));
        } catch (final XMLStreamException e) {
            throw new StreamException(e);
        }
    }

    public HierarchicalStreamReader createReader(final InputStream input) {
        try {
            return new StaxReader(new QNameMap(), mif.createXMLStreamReader(input));
        } catch (final XMLStreamException e) {
            throw new StreamException(e);
        }
    }

    public HierarchicalStreamWriter createWriter(final Writer writer) {
        try {
            if (useSerializeAsArray) {
                return new JettisonStaxWriter(new QNameMap(), mof.createXMLStreamWriter(writer), convention);
            } else {
                return new StaxWriter(new QNameMap(), mof.createXMLStreamWriter(writer));
            }
        } catch (final XMLStreamException e) {
            throw new StreamException(e);
        }
    }

    public HierarchicalStreamWriter createWriter(final OutputStream output) {
        try {
            if (useSerializeAsArray) {
                return new JettisonStaxWriter(new QNameMap(), mof.createXMLStreamWriter(output), convention);
            } else {
                return new StaxWriter(new QNameMap(), mof.createXMLStreamWriter(output));
            }
        } catch (final XMLStreamException e) {
            throw new StreamException(e);
        }
    }

}