ANT_17_BRANCH/proposal/sandbox/junit/src/main/org/apache/tools/ant/taskdefs/optional/rjunit/remote/Messenger.java

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package org.apache.tools.ant.taskdefs.optional.rjunit.remote;

import java.io.OutputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

/**
 * Read or write events to/from appropriate streams.
 *
 */
public class Messenger {

    private InputStream in;

    private OutputStream out;

    public Messenger(InputStream in, OutputStream out) throws IOException {
        setOutputStream( new ObjectOutputStream(out) );
        setInputStream( new ObjectInputStream(in) );
    }

    protected void finalize() throws Throwable {
        close();
    }

    public void close() throws IOException {
        if (out != null) {
            out.flush();
            out.close();
            out = null;
        }
        if (in != null) {
            in.close();
            in = null;
        }
    }

    public TestRunEvent read() {
        try {
            return (TestRunEvent)((ObjectInputStream)in).readObject();
        } catch (Exception e){
            return null;
        }
    }

    public void writeEvent(TestRunEvent evt) throws IOException {
        ((ObjectOutputStream)out).writeObject(evt);
    }

    protected OutputStream getOutputStream(){
        return out;
    }

    protected InputStream getInputStream(){
        return in;
    }

    protected void setOutputStream(OutputStream out){
        this.out = out;
    }

    protected void setInputStream(InputStream in){
        this.in = in;
    }
}