1 /*
2  * Copyright (C) 2017 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.googlecode.android_scripting;
18 
19 import java.io.BufferedInputStream;
20 import java.io.BufferedOutputStream;
21 import java.io.IOException;
22 import java.io.InputStream;
23 import java.io.OutputStream;
24 
25 public class IoUtils {
26   private static final int BUFFER_SIZE = 1024 * 8;
27 
IoUtils()28   private IoUtils() {
29     // Utility class.
30   }
31 
copy(InputStream input, OutputStream output)32   public static int copy(InputStream input, OutputStream output) throws Exception, IOException {
33     byte[] buffer = new byte[BUFFER_SIZE];
34 
35     BufferedInputStream in = new BufferedInputStream(input, BUFFER_SIZE);
36     BufferedOutputStream out = new BufferedOutputStream(output, BUFFER_SIZE);
37     int count = 0, n = 0;
38     try {
39       while ((n = in.read(buffer, 0, BUFFER_SIZE)) != -1) {
40         out.write(buffer, 0, n);
41         count += n;
42       }
43       out.flush();
44     } finally {
45       try {
46         out.close();
47       } catch (IOException e) {
48         Log.e(e.getMessage(), e);
49       }
50       try {
51         in.close();
52       } catch (IOException e) {
53         Log.e(e.getMessage(), e);
54       }
55     }
56     return count;
57   }
58 
59 }
60