1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.shared.release.exec;
20
21 import java.io.PrintStream;
22
23 import org.codehaus.plexus.util.cli.StreamConsumer;
24
25 /**
26 * Consumer that both funnels to System.out/err, and stores in an internal buffer.
27 *
28 * @author <a href="mailto:brett@apache.org">Brett Porter</a>
29 */
30 public class TeeConsumer implements StreamConsumer {
31 private final PrintStream stream;
32
33 /**
34 * @noinspection StringBufferField
35 */
36 private final StringBuffer content = new StringBuffer();
37
38 private static final String LS = System.getProperty("line.separator");
39
40 private final String indent;
41
42 /**
43 * <p>Constructor for TeeConsumer.</p>
44 *
45 * @param stream a {@link java.io.PrintStream} object
46 */
47 public TeeConsumer(PrintStream stream) {
48 this(stream, " ");
49 }
50
51 /**
52 * <p>Constructor for TeeConsumer.</p>
53 *
54 * @param stream a {@link java.io.PrintStream} object
55 * @param indent a {@link java.lang.String} object
56 */
57 public TeeConsumer(PrintStream stream, String indent) {
58 this.stream = stream;
59 this.indent = indent;
60 }
61
62 @Override
63 public void consumeLine(String line) {
64 stream.println(indent + line);
65
66 content.append(line);
67 content.append(LS);
68 }
69
70 /**
71 * <p>Getter for the field <code>content</code>.</p>
72 *
73 * @return a {@link java.lang.String} object
74 */
75 public String getContent() {
76 return content.toString();
77 }
78
79 @Override
80 public String toString() {
81 return getContent();
82 }
83 }