Source Code : Copies bytes from the source byte array to the destination array

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Copies bytes from the source byte array to the destination array

    
/**********************************************************************************
 *
 * Copyright (c) 2003, 2004 The Regents of the University of Michigan, Trustees of Indiana University,
 *                  Board of Trustees of the Leland Stanford, Jr., University, and The MIT Corporation
 *
 * Licensed under the Educational Community License Version 1.0 (the "License");
 * By obtaining, using and/or copying this Original Work, you agree that you have read,
 * understand, and will comply with the terms and conditions of the Educational Community License.
 * You may obtain a copy of the License at:
 *
 *      http://cvs.sakaiproject.org/licenses/license_1_0.html
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **********************************************************************************/


/**
 * Byte utilities
 */
public class ByteUtils {



  /**
   * Copies bytes from the source byte array to the destination array
   * 
   * @param source
   *          The source array
   * @param srcBegin
   *          Index of the first source byte to copy
   * @param srcEnd
   *          Index after the last source byte to copy
   * @param destination
   *          The destination array
   * @param dstBegin
   *          The starting offset in the destination array
   */
  public static void getBytes(byte[] source, int srcBegin, int srcEnd, byte[] destination,
      int dstBegin) {
    System.arraycopy(source, srcBegin, destination, dstBegin, srcEnd - srcBegin);
  }

  /**
   * Return a new byte array containing a sub-portion of the source array
   * 
   * @param srcBegin
   *          The beginning index (inclusive)
   * @param srcEnd
   *          The ending index (exclusive)
   * @return The new, populated byte array
   */
  public static byte[] subbytes(byte[] source, int srcBegin, int srcEnd) {
    byte destination[];

    destination = new byte[srcEnd - srcBegin];
    getBytes(source, srcBegin, srcEnd, destination, 0);

    return destination;
  }

  /**
   * Return a new byte array containing a sub-portion of the source array
   * 
   * @param srcBegin
   *          The beginning index (inclusive)
   * @return The new, populated byte array
   */
  public static byte[] subbytes(byte[] source, int srcBegin) {
    return subbytes(source, srcBegin, source.length);
  }
}

   
    
    
    
  

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