1 package org.apache.jcs.admin;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.io.OutputStream;
24
25 /***
26 * Keeps track of the number of bytes written to it, but doesn't write them anywhere.
27 */
28 public class CountingOnlyOutputStream
29 extends OutputStream
30 {
31 /*** number of bytes passed through */
32 private int count;
33
34 /***
35 * count as we write.
36 * <p>
37 * @param b
38 * @throws IOException
39 */
40 public void write( byte[] b )
41 throws IOException
42 {
43 this.count += b.length;
44 }
45
46 /***
47 * count as we write.
48 * <p>
49 * @param b
50 * @param off
51 * @param len
52 * @throws IOException
53 */
54 public void write( byte[] b, int off, int len )
55 throws IOException
56 {
57 this.count += len;
58 }
59
60 /***
61 * count as we write.
62 * <p>
63 * @param b
64 * @throws IOException
65 */
66 public void write( int b )
67 throws IOException
68 {
69 this.count++;
70 }
71
72 /***
73 * The number of bytes that have passed through this stream.
74 * <p>
75 * @return int
76 */
77 public int getCount()
78 {
79 return this.count;
80 }
81 }