1 /*
2  * Copyright (C) 2015 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 package com.android.voicemail.impl.mail.utility;
17 
18 import java.io.IOException;
19 import java.io.OutputStream;
20 
21 /**
22  * A simple pass-thru OutputStream that also counts how many bytes are written to it and makes that
23  * count available to callers.
24  */
25 public class CountingOutputStream extends OutputStream {
26   private long count;
27   private final OutputStream outputStream;
28 
CountingOutputStream(OutputStream outputStream)29   public CountingOutputStream(OutputStream outputStream) {
30     this.outputStream = outputStream;
31   }
32 
getCount()33   public long getCount() {
34     return count;
35   }
36 
37   @Override
write(byte[] buffer, int offset, int count)38   public void write(byte[] buffer, int offset, int count) throws IOException {
39     outputStream.write(buffer, offset, count);
40     this.count += count;
41   }
42 
43   @Override
write(int oneByte)44   public void write(int oneByte) throws IOException {
45     outputStream.write(oneByte);
46     count++;
47   }
48 }
49