| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.ui.console; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.IJobManager; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds; |
| import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.rules.FastPartitioner; |
| import org.eclipse.jface.text.rules.RuleBasedPartitionScanner; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.swt.custom.StyleRange; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.ui.console.IConsoleDocumentPartitioner; |
| import org.eclipse.ui.console.IConsoleView; |
| import org.eclipse.ui.console.TextConsole; |
| import org.eclipse.ui.part.IPageBookViewPage; |
| import org.eclipse.ui.progress.WorkbenchJob; |
| |
| /** |
| * Provides a stack trace console for Java stack traces |
| */ |
| public class JavaStackTraceConsole extends TextConsole { |
| |
| /** |
| * Provides a partitioner for this console type |
| */ |
| class JavaStackTraceConsolePartitioner extends FastPartitioner implements IConsoleDocumentPartitioner { |
| |
| public JavaStackTraceConsolePartitioner() { |
| super(new RuleBasedPartitionScanner(), null); |
| getDocument().setDocumentPartitioner(this); |
| } |
| |
| @Override |
| public boolean isReadOnly(int offset) { |
| return false; |
| } |
| |
| @Override |
| public StyleRange[] getStyleRanges(int offset, int length) { |
| return null; |
| } |
| |
| } |
| |
| public final static String CONSOLE_TYPE = "javaStackTraceConsole"; //$NON-NLS-1$ |
| public final static String FILE_NAME = JDIDebugUIPlugin.getDefault().getStateLocation().toOSString() + File.separator + "stackTraceConsole.txt"; //$NON-NLS-1$ |
| |
| private JavaStackTraceConsolePartitioner partitioner = new JavaStackTraceConsolePartitioner(); |
| private IPropertyChangeListener propertyListener = new IPropertyChangeListener() { |
| @Override |
| public void propertyChange(PropertyChangeEvent event) { |
| String property = event.getProperty(); |
| if (property.equals(IDebugUIConstants.PREF_CONSOLE_FONT)) { |
| setFont(JFaceResources.getFont(IDebugUIConstants.PREF_CONSOLE_FONT)); |
| } |
| } |
| }; |
| |
| /** |
| * Constructor |
| */ |
| public JavaStackTraceConsole() { |
| super(ConsoleMessages.JavaStackTraceConsoleFactory_0, CONSOLE_TYPE, null, true); |
| Font font = JFaceResources.getFont(IDebugUIConstants.PREF_CONSOLE_FONT); |
| setFont(font); |
| partitioner.connect(getDocument()); |
| } |
| |
| /** |
| * inits the document backing this console |
| */ |
| public void initializeDocument() { |
| File file = new File(FILE_NAME); |
| if (file.exists()) { |
| try (InputStream fin = new BufferedInputStream(new FileInputStream(file))) { |
| int len = (int) file.length(); |
| byte[] b = new byte[len]; |
| int read = 0; |
| while (read < len) { |
| read += fin.read(b); |
| } |
| getDocument().set(new String(b)); |
| } catch (IOException e) { |
| } |
| } else { |
| getDocument().set(ConsoleMessages.JavaStackTraceConsole_0); |
| } |
| } |
| |
| /** |
| * @see org.eclipse.ui.console.AbstractConsole#init() |
| */ |
| @Override |
| protected void init() { |
| JFaceResources.getFontRegistry().addListener(propertyListener); |
| } |
| |
| /** |
| * @see org.eclipse.ui.console.TextConsole#dispose() |
| */ |
| @Override |
| protected void dispose() { |
| saveDocument(); |
| JFaceResources.getFontRegistry().removeListener(propertyListener); |
| super.dispose(); |
| } |
| |
| /** |
| * Saves the backing document for this console |
| */ |
| public void saveDocument() { |
| try (FileOutputStream fout = new FileOutputStream(FILE_NAME)) { |
| IDocument document = getDocument(); |
| if (document != null) { |
| if (document.getLength() > 0) { |
| String contents = document.get(); |
| fout.write(contents.getBytes()); |
| } else { |
| File file = new File(FILE_NAME); |
| file.delete(); |
| } |
| } |
| } |
| catch (IOException e) {} |
| } |
| |
| /** |
| * @see org.eclipse.ui.console.TextConsole#getPartitioner() |
| */ |
| @Override |
| protected IConsoleDocumentPartitioner getPartitioner() { |
| return partitioner; |
| } |
| |
| /** |
| * @see org.eclipse.ui.console.AbstractConsole#getHelpContextId() |
| */ |
| @Override |
| public String getHelpContextId() { |
| return IJavaDebugHelpContextIds.STACK_TRACE_CONSOLE; |
| } |
| |
| /** |
| * @see org.eclipse.ui.console.TextConsole#createPage(org.eclipse.ui.console.IConsoleView) |
| */ |
| @Override |
| public IPageBookViewPage createPage(IConsoleView view) { |
| return new JavaStackTraceConsolePage(this, view); |
| } |
| |
| /** |
| * performs the formatting of the stacktrace console |
| */ |
| public void format() { |
| WorkbenchJob job = new WorkbenchJob(ConsoleMessages.JavaStackTraceConsole_1) { |
| @Override |
| public IStatus runInUIThread(IProgressMonitor monitor) { |
| IJobManager jobManager = Job.getJobManager(); |
| try { |
| jobManager.join(this, monitor); |
| } catch (OperationCanceledException e1) { |
| return Status.CANCEL_STATUS; |
| } catch (InterruptedException e1) { |
| return Status.CANCEL_STATUS; |
| } |
| IDocument document = getDocument(); |
| String orig = document.get(); |
| if (orig != null && orig.length() > 0) { |
| document.set(format(orig)); |
| } |
| |
| return Status.OK_STATUS; |
| } |
| }; |
| job.setSystem(true); |
| job.schedule(); |
| |
| } |
| |
| /** |
| * Underlying format operation |
| * @param trace the stack trace to format |
| * @return the formatted stack trace for this console |
| */ |
| private String format(String trace) { |
| StringTokenizer tokenizer = new StringTokenizer(trace, " \t\n\r\f", true); //$NON-NLS-1$ |
| StringBuilder formattedTrace = new StringBuilder(); |
| |
| boolean insideAt = false; |
| boolean newLine = true; |
| int pendingSpaces = 0; |
| boolean antTrace = false; |
| |
| while (tokenizer.hasMoreTokens()) { |
| String token = tokenizer.nextToken(); |
| if (token.length() == 0) |
| { |
| continue; // paranoid |
| } |
| char c = token.charAt(0); |
| // handle delimiters |
| switch (c) { |
| case ' ': |
| if (newLine) { |
| pendingSpaces++; |
| } else { |
| pendingSpaces = 1; |
| } |
| continue; |
| case '\t': |
| if (newLine) { |
| pendingSpaces += 4; |
| } else { |
| pendingSpaces = 1; |
| } |
| continue; |
| case '\n': |
| case '\r': |
| case '\f': |
| if (insideAt) { |
| pendingSpaces = 1; |
| } else { |
| pendingSpaces = 0; |
| newLine = true; |
| } |
| continue; |
| } |
| // consider newlines only before token starting with char '\"' or |
| // token "at" or "-". |
| if (newLine || antTrace) { |
| if (c == '\"') { // leading thread name, e.g. "Worker-124" |
| // prio=5 |
| formattedTrace.append("\n\n"); //$NON-NLS-1$ print 2 lines to break between threads |
| } else if ("-".equals(token)) { //$NON-NLS-1$ - locked ... |
| formattedTrace.append("\n"); //$NON-NLS-1$ |
| formattedTrace.append(" "); //$NON-NLS-1$ |
| formattedTrace.append(token); |
| pendingSpaces = 0; |
| continue; |
| } else if ("at".equals(token)) { //$NON-NLS-1$ at ... |
| if (!antTrace) { |
| formattedTrace.append("\n"); //$NON-NLS-1$ |
| formattedTrace.append(" "); //$NON-NLS-1$ |
| } else { |
| formattedTrace.append(' '); |
| } |
| insideAt = true; |
| formattedTrace.append(token); |
| pendingSpaces = 0; |
| continue; |
| } else if (c == '[') { |
| if(antTrace) { |
| formattedTrace.append("\n"); //$NON-NLS-1$ |
| } |
| formattedTrace.append(token); |
| pendingSpaces = 0; |
| newLine = false; |
| antTrace = true; |
| continue; |
| } |
| newLine = false; |
| } |
| if (pendingSpaces > 0) { |
| for (int i = 0; i < pendingSpaces; i++) { |
| formattedTrace.append(' '); |
| } |
| pendingSpaces = 0; |
| } |
| formattedTrace.append(token); |
| insideAt = false; |
| } |
| return formattedTrace.toString(); |
| } |
| } |
