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/*
* Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.lib;
import static java.nio.charset.StandardCharsets.UTF_8;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
/**
* A simple progress reporter printing on a stream.
*/
public class TextProgressMonitor extends BatchingProgressMonitor {
private final Writer out;
private boolean write;
/**
* Initialize a new progress monitor.
*/
public TextProgressMonitor() {
this(new PrintWriter(new OutputStreamWriter(System.err, UTF_8)));
}
/**
* Initialize a new progress monitor.
*
* @param out
* the stream to receive messages on.
*/
public TextProgressMonitor(Writer out) {
this.out = out;
this.write = true;
}
/** {@inheritDoc} */
@Override
protected void onUpdate(String taskName, int workCurr) {
StringBuilder s = new StringBuilder();
format(s, taskName, workCurr);
send(s);
}
/** {@inheritDoc} */
@Override
protected void onEndTask(String taskName, int workCurr) {
StringBuilder s = new StringBuilder();
format(s, taskName, workCurr);
s.append("\n"); //$NON-NLS-1$
send(s);
}
private void format(StringBuilder s, String taskName, int workCurr) {
s.append("\r"); //$NON-NLS-1$
s.append(taskName);
s.append(": "); //$NON-NLS-1$
while (s.length() < 25)
s.append(' ');
s.append(workCurr);
}
/** {@inheritDoc} */
@Override
protected void onUpdate(String taskName, int cmp, int totalWork, int pcnt) {
StringBuilder s = new StringBuilder();
format(s, taskName, cmp, totalWork, pcnt);
send(s);
}
/** {@inheritDoc} */
@Override
protected void onEndTask(String taskName, int cmp, int totalWork, int pcnt) {
StringBuilder s = new StringBuilder();
format(s, taskName, cmp, totalWork, pcnt);
s.append("\n"); //$NON-NLS-1$
send(s);
}
private void format(StringBuilder s, String taskName, int cmp,
int totalWork, int pcnt) {
s.append("\r"); //$NON-NLS-1$
s.append(taskName);
s.append(": "); //$NON-NLS-1$
while (s.length() < 25)
s.append(' ');
String endStr = String.valueOf(totalWork);
String curStr = String.valueOf(cmp);
while (curStr.length() < endStr.length())
curStr = " " + curStr; //$NON-NLS-1$
if (pcnt < 100)
s.append(' ');
if (pcnt < 10)
s.append(' ');
s.append(pcnt);
s.append("% ("); //$NON-NLS-1$
s.append(curStr);
s.append("/"); //$NON-NLS-1$
s.append(endStr);
s.append(")"); //$NON-NLS-1$
}
private void send(StringBuilder s) {
if (write) {
try {
out.write(s.toString());
out.flush();
} catch (IOException err) {
write = false;
}
}
}
}
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