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.xs.util;
  
  import java.lang.reflect.Array;
  import java.util.AbstractList;
  
  import mf.org.apache.xerces.xs.LSInputList;
  import mf.org.w3c.dom.ls.LSInput;
  
  
  /**
   * Contains a list of LSInputs.
   *
   * @author Michael Glavassevich, IBM
   * @version $Id: LSInputListImpl.java 776326 2009-05-19 14:27:24Z mrglavas $
   * @xerces.internal
   */
  public final class LSInputListImpl extends AbstractList implements LSInputList {
  
      /**
       * An immutable empty list.
       */
      public static final LSInputListImpl EMPTY_LIST = new LSInputListImpl(new LSInput[0], 0);
  
      // The array to hold all data
      private final LSInput[] fArray;
      // Number of elements in this list
      private final int fLength;
  
      /**
       * Construct an LSInputList implementation
       *
       * @param array  the data array
       * @param length the number of elements
       */
      public LSInputListImpl(LSInput[] array, int length) {
          fArray = array;
          fLength = length;
      }
  
      /**
       * The number of <code>LSInput</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 fLength;
      }
  
      /**
       * Returns the <code>index</code>th item in the collection or
       * <code>null</code> if <code>index</code> is greater than or equal to
       * the number of objects in the list. The index starts at 0.
       *
       * @param index index into the collection.
       * @return The <code>LSInput</code> at the <code>index</code>th
       * position in the <code>LSInputList</code>, or <code>null</code> if
       * the index specified is not valid.
       */
      @Override
      public LSInput item(int index) {
          if (index < 0 || index >= fLength) {
              return null;
          }
          return fArray[index];
      }
      
      /*
       * List methods
       */
  
      @Override
      public Object get(int index) {
          if (index >= 0 && index < fLength) {
              return fArray[index];
          }
          throw new IndexOutOfBoundsException("Index: " + index);
      }
  
      @Override
      public int size() {
          return getLength();
      }
  
      @Override
      public Object[] toArray() {
          Object[] a = new Object[fLength];
          toArray0(a);
          return a;
      }
  
      @Override
      public Object[] toArray(Object[] a) {
          if (a.length < fLength) {
              Class arrayClass = a.getClass();
              Class componentType = arrayClass.getComponentType();
              a = (Object[]) Array.newInstance(componentType, fLength);
          }
          toArray0(a);
          if (a.length > fLength) {
              a[fLength] = null;
          }
          return a;
      }
  
      private void toArray0(Object[] a) {
          if (fLength > 0) {
              System.arraycopy(fArray, 0, a, 0, fLength);
          }
      }
  
  } // LSInputListImpl
  