org.eclipse.jgit.util.io.DisabledOutputStream.java Source code

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Here is the source code for org.eclipse.jgit.util.io.DisabledOutputStream.java

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/*
 * Copyright (C) 2009-2010, Google Inc.
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - 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.
 *
 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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package org.eclipse.jgit.util.io;

import java.io.IOException;
import java.io.OutputStream;

import org.eclipse.jgit.internal.JGitText;

/**
 * An OutputStream which always throws IllegalStateExeption during write.
 */
public final class DisabledOutputStream extends OutputStream {
    /** The canonical instance which always throws IllegalStateException. */
    public static final DisabledOutputStream INSTANCE = new DisabledOutputStream();

    private DisabledOutputStream() {
        // Do nothing, but we want to hide our constructor to prevent
        // more than one instance from being created.
    }

    /** {@inheritDoc} */
    @Override
    public void write(int b) throws IOException {
        // We shouldn't be writing output at this stage, there
        // is nobody listening to us.
        //
        throw new IllegalStateException(JGitText.get().writingNotPermitted);
    }
}