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Java > Open Source Codes > org > apache > poi > poifs > filesystem > SlowInputStream


1
2 /* ====================================================================
3    Copyright 2002-2004 Apache Software Foundation
4
5    Licensed under the Apache License, Version 2.0 (the "License");
6    you may not use this file except in compliance with the License.
7    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         
18
19 package org.apache.poi.poifs.filesystem;
20
21 import java.io.*;
22 import java.util.Random JavaDoc;
23
24 /**
25  * Returns a random amount of requested data. Used to check conformance with
26  * InputStream API contracts.
27  */
28 public class SlowInputStream extends FilterInputStream
29 {
30     private Random JavaDoc r = new Random JavaDoc(0);
31     
32     public SlowInputStream(InputStream in) {
33         super(in);
34     }
35
36     public int read(byte[] b, int off, int len) throws IOException {
37         return super.read(b, off, r.nextInt(len) + 1);
38     }
39 }
40
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