001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.collections.primitives.adapters.io; 018 019import java.io.InputStream; 020 021import org.apache.commons.collections.primitives.ByteIterator; 022 023/** 024 * Adapts an {@link ByteIterator} to the {@link InputStream} interface. 025 * 026 * @version $Revision: 480462 $ $Date: 2006-11-29 03:15:00 -0500 (Wed, 29 Nov 2006) $ 027 * @author Rodney Waldhoff 028 */ 029public class ByteIteratorInputStream extends InputStream { 030 031 public ByteIteratorInputStream(ByteIterator in) { 032 this.iterator= in; 033 } 034 035 public int read() { 036 if(iterator.hasNext()) { 037 return (0xFF & iterator.next()); 038 } else { 039 return -1; 040 } 041 } 042 043 public static InputStream adapt(ByteIterator in) { 044 return null == in ? null : new ByteIteratorInputStream(in); 045 } 046 047 private ByteIterator iterator = null; 048 049}