NullOutputStream.java

/*
 * Copyright (C) 2011, Stefan Lay <stefan.lay@.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.util.io;

import java.io.OutputStream;

/**
 * An OutputStream which ignores everything written to it.
 */
public class NullOutputStream extends OutputStream {

    /** The canonical instance. */
    public static final NullOutputStream INSTANCE = new NullOutputStream();

    private NullOutputStream() {
        // 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) {
        // Discard.
    }

    /** {@inheritDoc} */
    @Override
    public void write(byte[] buf) {
        // Discard.
    }

    /** {@inheritDoc} */
    @Override
    public void write(byte[] buf, int pos, int cnt) {
        // Discard.
    }
}