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Java > Open Source Codes > org > apache > commons > collections > primitives > adapters > io > ByteIteratorInputStream


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.commons.collections.primitives.adapters.io;
18
19 import java.io.InputStream JavaDoc;
20
21 import org.apache.commons.collections.primitives.ByteIterator;
22
23 /**
24  * Adapts an {@link ByteIterator} to the {@link InputStream} interface.
25  *
26  * @version $Revision: 480462 $ $Date: 2006-11-29 00:15:00 -0800 (Wed, 29 Nov 2006) $
27  * @author Rodney Waldhoff
28  */
29 public class ByteIteratorInputStream extends InputStream JavaDoc {
30
31     public ByteIteratorInputStream(ByteIterator in) {
32         this.iterator= in;
33     }
34
35     public int read() {
36         if(iterator.hasNext()) {
37             return (0xFF & iterator.next());
38         } else {
39             return -1;
40         }
41     }
42
43     public static InputStream JavaDoc adapt(ByteIterator in) {
44         return null == in ? null : new ByteIteratorInputStream(in);
45     }
46     
47     private ByteIterator iterator = null;
48
49 }
50
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