com.orientechnologies.orient.core.compression.impl.ONothingCompression Maven / Gradle / Ivy

/*
  *
  *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
  *  *
  *  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  *  you may not use this file except in compliance with the License.
  *  *  You may obtain a copy of the License at
  *  *
  *  *       http://www.apache.org/licenses/LICENSE-2.0
  *  *
  *  *  Unless required by applicable law or agreed to in writing, software
  *  *  distributed under the License 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.
  *  *
  *  * For more information: http://www.orientechnologies.com
  *
  */

package com.orientechnologies.orient.core.compression.impl;

/**
 * @author Andrey Lomakin
 * @since 05.06.13
 */
public class ONothingCompression extends OAbstractCompression {
  public static final String              NAME     = "nothing";

  public static final ONothingCompression INSTANCE = new ONothingCompression();

  @Override
  public byte[] compress(final byte[] content, final int offset, final int length) {
    if (offset == 0 && length == content.length)
      return content;

    byte[] result = new byte[length];
    System.arraycopy(content, offset, result, 0, length);

    return result;
  }

  @Override
  public byte[] uncompress(final byte[] content, final int offset, final int length) {
    if (offset == 0 && length == content.length)
      return content;

    byte[] result = new byte[length];
    System.arraycopy(content, offset, result, 0, length);

    return result;
  }

  @Override
  public String name() {
    return NAME;
  }
}