/*
 * ******************************************************************************
 *   Copyright 2014-2017 Spectra Logic Corporation. All Rights Reserved.
 *   Licensed under the Apache License, Version 2.0 (the "License"). You may not use
 *   this file except in compliance with the License. A copy of the License is located at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   or in the "license" file accompanying this file.
 *   This file 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 com.spectralogic.ds3client.utils;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SeekableByteChannel;

public class EmptySeekableByteChannel implements SeekableByteChannel {
    private boolean open = true;
    @Override
    public int read(final ByteBuffer dst) throws IOException {
        return 0;
    }

    @Override
    public int write(final ByteBuffer src) throws IOException {
        return 0;
    }

    @Override
    public long position() throws IOException {
        return 0;
    }

    @Override
    public SeekableByteChannel position(final long newPosition) throws IOException {
        return this;
    }

    @Override
    public long size() throws IOException {
        return 0;
    }

    @Override
    public SeekableByteChannel truncate(final long size) throws IOException {
        return this;
    }

    @Override
    public boolean isOpen() {
        return open;
    }

    @Override
    public void close() throws IOException {
        open = false;
    }
}
