org.mule.transport.tcp.protocols.CustomClassLoadingLengthProtocol.java Source code

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Here is the source code for org.mule.transport.tcp.protocols.CustomClassLoadingLengthProtocol.java

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/*
 * $Id$
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.transport.tcp.protocols;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.input.ClassLoaderObjectInputStream;
import org.apache.log4j.Logger;

/**
 * A length protocol that uses a specific class loader to load objects from streams
 * 
 * @since 2.2.6
 */
public class CustomClassLoadingLengthProtocol extends LengthProtocol {
    private final Logger logger = Logger.getLogger(this.getClass());

    private ClassLoader classLoader;

    @Override
    public Object read(InputStream is) throws IOException {
        byte[] bytes = (byte[]) super.read(is);

        if (bytes == null) {
            return null;
        } else {
            ClassLoaderObjectInputStream classLoaderIS = new ClassLoaderObjectInputStream(this.getClassLoader(),
                    is);
            try {
                return classLoaderIS.readObject();
            } catch (ClassNotFoundException e) {
                logger.warn(e.getMessage());
                IOException iox = new IOException();
                iox.initCause(e);
                throw iox;
            } finally {
                classLoaderIS.close();
            }
        }
    }

    public ClassLoader getClassLoader() {
        if (this.classLoader == null) {
            this.classLoader = this.getClass().getClassLoader();
        }
        return classLoader;
    }

    public void setClassLoader(ClassLoader classLoader) {
        this.classLoader = classLoader;
    }
}