/*

  * 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 org.apache.commons.collections.primitives.adapters;

 import java.util.Iterator;

 import org.apache.commons.collections.primitives.ByteIterator;

 /**

  * Adapts a {@link java.lang.Number Number}-valued 

  * {@link Iterator Iterator} 

  * to the {@link ByteIterator ByteIterator} 

  * interface.

  * <p />

  * This implementation delegates most methods

  * to the provided {@link Iterator Iterator} 

  * implementation in the "obvious" way.

  *

  * @since Commons Primitives 1.0

  * @version $Revision: 480462 $ $Date: 2006-11-29 03:15:00 -0500 (Wed, 29 Nov 2006) $

  * @author Rodney Waldhoff 

  */

 public class IteratorByteIterator implements ByteIterator {

     /**

      * Create an {@link ByteIterator ByteIterator} wrapping

      * the specified {@link Iterator Iterator}.  When

      * the given <i>iterator</i> is <code>null</code>,

      * returns <code>null</code>.

      * 

      * @param iterator the (possibly <code>null</code>) 

      *        {@link Iterator Iterator} to wrap

      * @return an {@link ByteIterator ByteIterator} wrapping the given 

      *         <i>iterator</i>, or <code>null</code> when <i>iterator</i> is

      *         <code>null</code>.

      */

     public static ByteIterator wrap(Iterator iterator) {

         return null == iterator ? null : new IteratorByteIterator(iterator);

     }

     /**

      * Creates an {@link ByteIterator ByteIterator} wrapping

      * the specified {@link Iterator Iterator}.

      * @see #wrap

      */

     public IteratorByteIterator(Iterator iterator) {

         _iterator = iterator;

     }

     public boolean hasNext() {

         return _iterator.hasNext();

     }

     public byte next() {

         return ((Number)(_iterator.next())).byteValue();

     }

     public void remove() {

         _iterator.remove();

     }

     private Iterator _iterator = null;

 }