1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.emailcommon.utility;
18 
19 import java.io.IOException;
20 import java.io.OutputStream;
21 
22 /**
23  * A simple pass-thru OutputStream that also counts how many bytes are written to it and
24  * makes that count available to callers.
25  */
26 public class CountingOutputStream extends OutputStream {
27     private long mCount;
28     private final OutputStream mOutputStream;
29 
CountingOutputStream(OutputStream outputStream)30     public CountingOutputStream(OutputStream outputStream) {
31         mOutputStream = outputStream;
32     }
33 
getCount()34     public long getCount() {
35         return mCount;
36     }
37 
38     @Override
write(byte[] buffer, int offset, int count)39     public void write(byte[] buffer, int offset, int count) throws IOException {
40         mOutputStream.write(buffer, offset, count);
41         mCount += count;
42     }
43 
44     @Override
write(int oneByte)45     public void write(int oneByte) throws IOException {
46         mOutputStream.write(oneByte);
47         mCount++;
48     }
49 }
50