1 /*
2 * Copyright (C) 2008-2010, Google Inc.
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 package org.eclipse.jgit.transport;
45
46 import java.io.IOException;
47 import java.io.OutputStream;
48
49 import org.eclipse.jgit.lib.BatchingProgressMonitor;
50 import org.eclipse.jgit.lib.Constants;
51
52 /** Write progress messages out to the sideband channel. */
53 class SideBandProgressMonitor extends BatchingProgressMonitor {
54 private final OutputStream out;
55
56 private boolean write;
57
58 SideBandProgressMonitor(OutputStream os) {
59 out = os;
60 write = true;
61 }
62
63 /** {@inheritDoc} */
64 @Override
65 protected void onUpdate(String taskName, int workCurr) {
66 StringBuilder s = new StringBuilder();
67 format(s, taskName, workCurr);
68 s.append(" \r"); //$NON-NLS-1$
69 send(s);
70 }
71
72 /** {@inheritDoc} */
73 @Override
74 protected void onEndTask(String taskName, int workCurr) {
75 StringBuilder s = new StringBuilder();
76 format(s, taskName, workCurr);
77 s.append(", done\n"); //$NON-NLS-1$
78 send(s);
79 }
80
81 private void format(StringBuilder s, String taskName, int workCurr) {
82 s.append(taskName);
83 s.append(": "); //$NON-NLS-1$
84 s.append(workCurr);
85 }
86
87 /** {@inheritDoc} */
88 @Override
89 protected void onUpdate(String taskName, int cmp, int totalWork, int pcnt) {
90 StringBuilder s = new StringBuilder();
91 format(s, taskName, cmp, totalWork, pcnt);
92 s.append(" \r"); //$NON-NLS-1$
93 send(s);
94 }
95
96 /** {@inheritDoc} */
97 @Override
98 protected void onEndTask(String taskName, int cmp, int totalWork, int pcnt) {
99 StringBuilder s = new StringBuilder();
100 format(s, taskName, cmp, totalWork, pcnt);
101 s.append("\n"); //$NON-NLS-1$
102 send(s);
103 }
104
105 private void format(StringBuilder s, String taskName, int cmp,
106 int totalWork, int pcnt) {
107 s.append(taskName);
108 s.append(": "); //$NON-NLS-1$
109 if (pcnt < 100)
110 s.append(' ');
111 if (pcnt < 10)
112 s.append(' ');
113 s.append(pcnt);
114 s.append("% ("); //$NON-NLS-1$
115 s.append(cmp);
116 s.append("/"); //$NON-NLS-1$
117 s.append(totalWork);
118 s.append(")"); //$NON-NLS-1$
119 }
120
121 private void send(StringBuilder s) {
122 if (write) {
123 try {
124 out.write(Constants.encode(s.toString()));
125 out.flush();
126 } catch (IOException err) {
127 write = false;
128 }
129 }
130 }
131 }