content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.
   */
  
  package mf.org.apache.xerces.impl.dv.util;
  
  import java.util.AbstractList;
  
  import mf.org.apache.xerces.xs.XSException;
  import mf.org.apache.xerces.xs.datatypes.ByteList;
  
  /**
   * Implementation of <code>org.apache.xerces.xs.datatypes.ByteList</code>.
   *
   * @author Ankit Pasricha, IBM
   * @version $Id: ByteListImpl.java 1024038 2010-10-18 22:06:35Z sandygao $
   * @xerces.internal
   */
  public class ByteListImpl extends AbstractList implements ByteList {
  
      // actually data stored in a byte array
      protected final byte[] data;
  
      // canonical representation of the data
      protected String canonical;
  
      public ByteListImpl(byte[] data) {
          this.data = data;
      }
  
      /**
       * The number of <code>byte</code>s in the list. The range of
       * valid child object indices is 0 to <code>length-1</code> inclusive.
       */
      @Override
      public int getLength() {
          return data.length;
      }
  
      /**
       * Checks if the <code>byte</code> <code>item</code> is a
       * member of this list.
       *
       * @param item <code>byte</code> whose presence in this list
       *             is to be tested.
       * @return True if this list contains the <code>byte</code>
       * <code>item</code>.
       */
      @Override
      public boolean contains(byte item) {
          for (int i = 0; i < data.length; ++i) {
              if (data[i] == item) {
                  return true;
              }
          }
          return false;
      }
  
      /**
       * Returns the <code>index</code>th item in the collection. The index
       * starts at 0.
       *
       * @param index index into the collection.
       * @return The <code>byte</code> at the <code>index</code>th
       * position in the <code>ByteList</code>.
       * @throws XSException INDEX_SIZE_ERR: if <code>index</code> is greater than or equal to the
       *                     number of objects in the list.
       */
      @Override
      public byte item(int index)
              throws XSException {
  
          if (index < 0 || index > data.length - 1) {
              throw new XSException(XSException.INDEX_SIZE_ERR, null);
          }
          return data[index];
      }
      
      /*
       * List methods
       */
  
      @Override
      public Object get(int index) {
          if (index >= 0 && index < data.length) {
              return new Byte(data[index]);
          }
          throw new IndexOutOfBoundsException("Index: " + index);
      }
  
      @Override
      public int size() {
          return getLength();
      }
  
      @Override
      public byte[] toByteArray() {
          byte[] ret = new byte[data.length];
          System.arraycopy(data, 0, ret, 0, data.length);
          return ret;
      }
  }
  
  