| /* |
| * Copyright (C) 2008-2010, Google Inc. |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.eclipse.jgit.transport; |
| |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintWriter; |
| |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| |
| /** Write progress messages out to the sideband channel. */ |
| class SideBandProgressMonitor implements ProgressMonitor { |
| private PrintWriter out; |
| |
| private boolean output; |
| |
| private long taskBeganAt; |
| |
| private long lastOutput; |
| |
| private String msg; |
| |
| private int lastWorked; |
| |
| private int totalWork; |
| |
| SideBandProgressMonitor(final OutputStream os) { |
| out = new PrintWriter(new OutputStreamWriter(os, Constants.CHARSET)); |
| } |
| |
| public void start(final int totalTasks) { |
| // Ignore the number of tasks. |
| taskBeganAt = System.currentTimeMillis(); |
| lastOutput = taskBeganAt; |
| } |
| |
| public void beginTask(final String title, final int total) { |
| endTask(); |
| msg = title; |
| lastWorked = 0; |
| totalWork = total; |
| } |
| |
| public void update(final int completed) { |
| if (msg == null) |
| return; |
| |
| final int cmp = lastWorked + completed; |
| final long now = System.currentTimeMillis(); |
| if (!output && now - taskBeganAt < 500) |
| return; |
| if (totalWork == UNKNOWN) { |
| if (now - lastOutput >= 500) { |
| display(cmp, null); |
| lastOutput = now; |
| } |
| } else { |
| if ((cmp * 100 / totalWork) != (lastWorked * 100) / totalWork |
| || now - lastOutput >= 500) { |
| display(cmp, null); |
| lastOutput = now; |
| } |
| } |
| lastWorked = cmp; |
| output = true; |
| } |
| |
| private void display(final int cmp, final String eol) { |
| final StringBuilder m = new StringBuilder(); |
| m.append(msg); |
| m.append(": "); |
| |
| if (totalWork == UNKNOWN) { |
| m.append(cmp); |
| } else { |
| final int pcnt = (cmp * 100 / totalWork); |
| if (pcnt < 100) |
| m.append(' '); |
| if (pcnt < 10) |
| m.append(' '); |
| m.append(pcnt); |
| m.append("% ("); |
| m.append(cmp); |
| m.append("/"); |
| m.append(totalWork); |
| m.append(")"); |
| } |
| if (eol != null) |
| m.append(eol); |
| else |
| m.append(" \r"); |
| out.print(m); |
| out.flush(); |
| } |
| |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| public void endTask() { |
| if (output) { |
| if (totalWork == UNKNOWN) |
| display(lastWorked, ", done\n"); |
| else |
| display(totalWork, "\n"); |
| } |
| output = false; |
| msg = null; |
| } |
| } |