01: /* ====================================================================
02: Licensed to the Apache Software Foundation (ASF) under one or more
03: contributor license agreements. See the NOTICE file distributed with
04: this work for additional information regarding copyright ownership.
05: The ASF licenses this file to You under the Apache License, Version 2.0
06: (the "License"); you may not use this file except in compliance with
07: the License. You may obtain a copy of the License at
08:
09: 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: package org.apache.poi.poifs.filesystem;
19:
20: import java.io.*;
21: import java.util.Random;
22:
23: /**
24: * Returns a random amount of requested data. Used to check conformance with
25: * InputStream API contracts.
26: */
27: public class SlowInputStream extends FilterInputStream {
28: private Random r = new Random(0);
29:
30: public SlowInputStream(InputStream in) {
31: super (in);
32: }
33:
34: public int read(byte[] b, int off, int len) throws IOException {
35: return super .read(b, off, r.nextInt(len) + 1);
36: }
37: }
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