ActiveMQ example source code file (ObjectStreamWireFormat.java)

This example ActiveMQ source code file (ObjectStreamWireFormat.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

bytearrayinputstream, bytearrayoutputstream, bytearrayoutputstream, bytesequence, classloadingawareobjectinputstream, classloadingawareobjectinputstream, datainputstream, dataoutputstream, io, ioexception, ioexception, object, object, objectoutputstream, objectstreamwireformat

The ActiveMQ ObjectStreamWireFormat.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.
 */
package org.apache.activemq.wireformat;

import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;

import org.apache.activemq.util.ByteArrayInputStream;
import org.apache.activemq.util.ByteArrayOutputStream;
import org.apache.activemq.util.ByteSequence;
import org.apache.activemq.util.ClassLoadingAwareObjectInputStream;

/**
 * A simple implementation which uses Object Stream serialization.
 * 
 * 
 */
public class ObjectStreamWireFormat implements WireFormat {

    public ByteSequence marshal(Object command) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream ds = new DataOutputStream(baos);
        marshal(command, ds);
        ds.close();
        return baos.toByteSequence();
    }

    public Object unmarshal(ByteSequence packet) throws IOException {
        return unmarshal(new DataInputStream(new ByteArrayInputStream(packet)));
    }

    public void marshal(Object command, DataOutput ds) throws IOException {
        ObjectOutputStream out = new ObjectOutputStream((OutputStream)ds);
        out.writeObject(command);
        out.flush();
        out.reset();
    }

    public Object unmarshal(DataInput ds) throws IOException {
        try {
            ClassLoadingAwareObjectInputStream in = new ClassLoadingAwareObjectInputStream((InputStream)ds);
            Object command;
            command = in.readObject();
            in.close();
            return command;
        } catch (ClassNotFoundException e) {
            throw (IOException)new IOException("unmarshal failed: " + e).initCause(e);
        }
    }

    public void setVersion(int version) {
    }

    public int getVersion() {
        return 0;
    }

}