1 /*
2  * Copyright (C) 2016 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.compatibility.common.util;
18 
19 import java.io.IOException;
20 import java.io.InputStream;
21 import java.io.OutputStream;
22 
23 
24 public class StreamUtil {
25 
26     // 16K buffer size
27     private static final int BUFFER_SIZE = 16 * 1024;
28     /**
29      * Copies contents of origStream to destStream.
30      * <p/>
31      * Recommended to provide a buffered stream for input and output
32      *
33      * @param inStream the {@link InputStream}
34      * @param outStream the {@link OutputStream}
35      * @throws IOException
36      */
copyStreams(InputStream inStream, OutputStream outStream)37     public static void copyStreams(InputStream inStream, OutputStream outStream)
38             throws IOException {
39         byte[] buf = new byte[BUFFER_SIZE];
40         int size = -1;
41         while ((size = inStream.read(buf)) != -1) {
42             outStream.write(buf, 0, size);
43         }
44     }
45 
46 }
47