| /******************************************************************************* |
| * Copyright (c) 2004, 2010 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.search; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.mylyn.internal.tasks.core.AbstractSearchHandler; |
| import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin; |
| import org.eclipse.mylyn.tasks.core.AbstractDuplicateDetector; |
| import org.eclipse.mylyn.tasks.core.IRepositoryQuery; |
| import org.eclipse.mylyn.tasks.core.TaskRepository; |
| import org.eclipse.mylyn.tasks.core.data.TaskAttribute; |
| import org.eclipse.mylyn.tasks.core.data.TaskData; |
| import org.eclipse.mylyn.tasks.ui.TasksUi; |
| |
| /** |
| * @author Gail Murphy |
| * @author Steffen Pingel |
| */ |
| public class StackTraceDuplicateDetector extends AbstractDuplicateDetector { |
| |
| @Override |
| public boolean canQuery(TaskData taskData) { |
| return TasksUiPlugin.getDefault().getSearchHandler(taskData.getConnectorKind()) != null; |
| } |
| |
| private String getDescription(TaskData taskData) { |
| TaskAttribute attribute = taskData.getRoot().getMappedAttribute(TaskAttribute.DESCRIPTION); |
| if (attribute == null) { |
| attribute = taskData.getRoot().getMappedAttribute(TaskAttribute.COMMENT_NEW); |
| } |
| return (attribute != null) ? attribute.getTaskData().getAttributeMapper().getValueLabel(attribute) : ""; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public IRepositoryQuery getDuplicatesQuery(TaskRepository taskRepository, TaskData taskData) throws CoreException { |
| String description = getDescription(taskData); |
| String searchString = getStackTraceFromDescription(description); |
| if (searchString == null) { |
| throw new CoreException(new Status(IStatus.INFO, TasksUiPlugin.ID_PLUGIN, |
| "Unable to locate a stack trace in the description text.")); //$NON-NLS-1$ |
| } |
| |
| IRepositoryQuery query = TasksUi.getRepositoryModel().createRepositoryQuery(taskRepository); |
| AbstractSearchHandler searchHandler = TasksUiPlugin.getDefault().getSearchHandler( |
| taskRepository.getConnectorKind()); |
| if (searchHandler.queryForText(taskRepository, query, taskData, searchString)) { |
| return query; |
| } |
| return null; |
| } |
| |
| public static String getStackTraceFromDescription(String description) { |
| String stackTrace = null; |
| |
| if (description == null) { |
| return null; |
| } |
| |
| String punct = "!\"#$%&'\\(\\)*+,-./:;\\<=\\>?@\\[\\]^_`\\{|\\}~\n"; //$NON-NLS-1$ |
| String lineRegex = " *at\\s+[\\w" + punct + "]+ ?\\(.*\\) *\n?"; //$NON-NLS-1$ //$NON-NLS-2$ |
| Pattern tracePattern = Pattern.compile(lineRegex); |
| Matcher match = tracePattern.matcher(description); |
| |
| if (match.find()) { |
| // record the index of the first stack trace line |
| int start = match.start(); |
| int lastEnd = match.end(); |
| |
| // find the last stack trace line |
| while (match.find()) { |
| lastEnd = match.end(); |
| } |
| |
| // make sure there's still room to find the exception |
| if (start <= 0) { |
| return null; |
| } |
| |
| // count back to the line before the stack trace to find the |
| // exception |
| int stackStart = 0; |
| int index = start - 1; |
| while (index > 1 && description.charAt(index) == ' ') { |
| index--; |
| } |
| |
| // locate the exception line index |
| stackStart = description.substring(0, index - 1).lastIndexOf("\n"); //$NON-NLS-1$ |
| stackStart = (stackStart == -1) ? 0 : stackStart + 1; |
| |
| stackTrace = description.substring(stackStart, lastEnd); |
| } |
| |
| return stackTrace; |
| } |
| |
| } |