1/*
2 *  Licensed to the Apache Software Foundation (ASF) under one or more
3 *  contributor license agreements.  See the NOTICE file distributed with
4 *  this work for additional information regarding copyright ownership.
5 *  The ASF licenses this file to You under the Apache License, Version 2.0
6 *  (the "License"); you may not use this file except in compliance with
7 *  the License.  You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 */
17
18package tests.support;
19
20import java.io.ByteArrayOutputStream;
21import java.io.IOException;
22import java.io.InputStream;
23import java.io.Reader;
24import java.io.StringWriter;
25
26/**
27 * Utility methods for working with byte and character streams.
28 */
29public class Streams {
30    private Streams() {}
31
32    /**
33     * Drains the stream into a byte array and returns the result.
34     */
35    public static byte[] streamToBytes(InputStream source) throws IOException {
36        byte[] buffer = new byte[1024];
37        ByteArrayOutputStream out = new ByteArrayOutputStream();
38        int count;
39        while ((count = source.read(buffer)) != -1) {
40            out.write(buffer, 0, count);
41        }
42        return out.toByteArray();
43    }
44
45    /**
46     * Drains the stream into a string and returns the result.
47     */
48    public static String streamToString(Reader fileReader) throws IOException {
49        char[] buffer = new char[1024];
50        StringWriter out = new StringWriter();
51        int count;
52        while ((count = fileReader.read(buffer)) != -1) {
53            out.write(buffer, 0, count);
54        }
55        return out.toString();
56    }
57}
58