/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.tools.visualvm.threaddump.impl;
import com.sun.tools.visualvm.application.snapshot.ApplicationSnapshot;
import com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.core.datasource.descriptor.DataSourceDescriptor;
import com.sun.tools.visualvm.core.datasource.descriptor.DataSourceDescriptorFactory;
import com.sun.tools.visualvm.threaddump.ThreadDump;
import com.sun.tools.visualvm.core.ui.DataSourceView;
import com.sun.tools.visualvm.core.ui.components.DataViewComponent;
import com.sun.tools.visualvm.core.ui.components.ScrollableContainer;
import com.sun.tools.visualvm.uisupport.HTMLTextArea;
import java.awt.BorderLayout;
import java.awt.Color;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Logger;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.Segment;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.StyleSheet;
import org.openide.util.NbBundle;
import org.openide.util.RequestProcessor;
/**
*
* @author Jiri Sedlacek
* @author Tomas Hurka
*/
class ThreadDumpView extends DataSourceView {
private static final Logger LOGGER = Logger.getLogger(ThreadDumpView.class.getName());
public ThreadDumpView(ThreadDump threadDump) {
this(threadDump, DataSourceDescriptorFactory.getDescriptor(threadDump));
}
private ThreadDumpView(ThreadDump threadDump, DataSourceDescriptor descriptor) {
super(threadDump, descriptor.getName(), descriptor.getIcon(), 0, isClosableView(threadDump));
}
protected DataViewComponent createComponent() {
ThreadDump threadDump = (ThreadDump)getDataSource();
DataViewComponent dvc = new DataViewComponent(
new MasterViewSupport(threadDump).getMasterView(),
new DataViewComponent.MasterViewConfiguration(true));
return dvc;
}
private static boolean isClosableView(ThreadDump threadDump) {
// ThreadDump invisible
if (!threadDump.isVisible()) return false;
// ThreadDump not in DataSources tree
DataSource owner = threadDump.getOwner();
if (owner == null) return false;
while (owner != null && owner != DataSource.ROOT) {
// Application snapshot provides link to open the ThreadDump
if (owner instanceof ApplicationSnapshot) return true;
// Subtree containing ThreadDump invisible
if (!owner.isVisible()) return false;
owner = owner.getOwner();
}
// ThreadDump visible in DataSources tree
if (owner == DataSource.ROOT) return true;
// ThreadDump not in DataSources tree
return false;
}
// --- General data --------------------------------------------------------
private static class MasterViewSupport extends JPanel {
private JLabel progressLabel;
private JPanel contentsPanel;
public MasterViewSupport(ThreadDump threadDump) {
initComponents();
loadThreadDump(threadDump.getFile());
}
public DataViewComponent.MasterView getMasterView() {
return new DataViewComponent.MasterView(NbBundle.getMessage(ThreadDumpView.class, "LBL_Thread_Dump"), null, new ScrollableContainer(this)); // NOI18N
}
private void initComponents() {
setLayout(new BorderLayout());
progressLabel = new JLabel(NbBundle.getMessage(ThreadDumpView.class, "MSG_Loading_Thread_Dump"), SwingConstants.CENTER); // NOI18N
contentsPanel = new JPanel(new BorderLayout());
contentsPanel.add(progressLabel, BorderLayout.CENTER);
contentsPanel.setOpaque(false);
add(contentsPanel, BorderLayout.CENTER);
setOpaque(false);
}
private static String htmlize(String value) {
return value.replace("&", "&").replace("<", "<").replace("\t", " "); // NOI18N
}
private static String transform(String value) {
StringBuilder sb = new StringBuilder();
String[] result = value.split("\\n"); // NOI18N
for (int i = 0; i < result.length; i++) {
String line = result[i];
if (!line.isEmpty() && !Character.isWhitespace(line.charAt(0))) {
sb.append("<span style=\"color: #0033CC\">"); // NOI18N
sb.append(line);
sb.append("</span><br>"); // NOI18N
} else {
sb.append(line);
sb.append("<br>"); // NOI18N
}
}
return sb.toString();
}
private void loadThreadDump(final File file) {
RequestProcessor.getDefault().post(new Runnable() {
public void run() {
InputStream is = null;
try {
is = new FileInputStream(file);
byte[] data = new byte[(int)file.length()];
try {
is.read(data);
} catch (IOException ex) {
LOGGER.throwing(ThreadDumpView.class.getName(), "loadThreadDump", ex); // NOI18N
}
try {
HTMLTextArea area = new HTMLTextArea();
area.setEditorKit(new CustomHtmlEditorKit());
area.setForeground(new Color(0xcc, 0x33, 0));
area.setText("<pre>" + transform(htmlize(new String(data, "UTF-8"))) + "</pre>"); // NOI18N
area.setCaretPosition(0);
area.setBorder(BorderFactory.createEmptyBorder(14, 8, 14, 8));
contentsPanel.remove(progressLabel);
contentsPanel.add(area, BorderLayout.CENTER);
contentsPanel.revalidate();
contentsPanel.repaint();
// contentsPanel.doLayout();
} catch (Exception ex) {
LOGGER.throwing(ThreadDumpView.class.getName(), "loadThreadDump", ex); // NOI18N
}
} catch (FileNotFoundException ex) {
LOGGER.throwing(ThreadDumpView.class.getName(), "loadThreadDump", ex); // NOI18N
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
// ignore
}
}
}
}
});
}
}
private static class CustomHtmlEditorKit extends HTMLEditorKit {
@Override
public Document createDefaultDocument() {
StyleSheet styles = getStyleSheet();
StyleSheet ss = new StyleSheet();
ss.addStyleSheet(styles);
HTMLDocument doc = new CustomHTMLDocument(ss);
doc.setParser(getParser());
doc.setAsynchronousLoadPriority(4);
doc.setTokenThreshold(100);
return doc;
}
}
private static class CustomHTMLDocument extends HTMLDocument {
private static final int CACHE_BOUNDARY = 1000;
private char[] segArray;
private int segOffset;
private int segCount;
private boolean segPartialReturn;
private int lastOffset;
private int lastLength;
private CustomHTMLDocument(StyleSheet ss) {
super(ss);
lastOffset = -1;
lastLength = -1;
putProperty("multiByte", Boolean.TRUE); // NOI18N
}
@Override
public void getText(int offset, int length, Segment txt) throws BadLocationException {
if (lastOffset == offset && lastLength == length) {
txt.array = segArray;
txt.offset = segOffset;
txt.count = segCount;
txt.setPartialReturn(segPartialReturn);
return;
}
super.getText(offset, length, txt);
if (length > CACHE_BOUNDARY || lastLength <= CACHE_BOUNDARY) {
segArray = txt.array;
segOffset = txt.offset;
segCount = txt.count;
segPartialReturn = txt.isPartialReturn();
lastOffset = offset;
lastLength = length;
}
}
}
}