Java tutorial
/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.github.picologger.eclipse.syslogcat.views; import java.util.ArrayList; import java.util.HashMap; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Status; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.Separator; import org.eclipse.swt.dnd.Clipboard; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.IActionBars; import org.eclipse.ui.IPerspectiveRegistry; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.actions.ActionFactory; import org.eclipse.ui.dialogs.SearchPattern; import org.eclipse.ui.part.ViewPart; import com.github.picologger.eclipse.syslogcat.CommonAction; import com.github.picologger.eclipse.syslogcat.SyslogPlugin; import com.github.picologger.eclipse.syslogcat.views.Log.LogLevel; import com.github.picologger.eclipse.syslogcat.views.LogPanel.ILogFilterStorageManager; /** * The log cat view displays log output from the current device selection. * */ public final class LogCatView extends ViewPart { public static final String ID = "com.android.ide.eclipse.ddms.views.LogCatView"; // $NON-NLS-1$ private static final String PREFS_COL_TIME = SyslogPlugin.PLUGIN_ID + ".logcat.time"; // $NON-NLS-1$ private static final String PREFS_COL_LEVEL = SyslogPlugin.PLUGIN_ID + ".logcat.level"; // $NON-NLS-1$ private static final String PREFS_COL_PID = SyslogPlugin.PLUGIN_ID + ".logcat.pid"; // $NON-NLS-1$ private static final String PREFS_COL_TAG = SyslogPlugin.PLUGIN_ID + ".logcat.tag"; // $NON-NLS-1$ private static final String PREFS_COL_MESSAGE = SyslogPlugin.PLUGIN_ID + ".logcat.message"; // $NON-NLS-1$ private static final String PREFS_FILTERS = SyslogPlugin.PLUGIN_ID + ".logcat.filters"; // $NON-NLS-1$ private static LogCatView sThis; private LogPanel mLogPanel; private CommonAction mCreateFilterAction; private CommonAction mDeleteFilterAction; private CommonAction mEditFilterAction; private CommonAction mExportAction; private CommonAction gotoLineAction; private CommonAction[] mLogLevelActions; private String[] mLogLevelIcons = { "v.png", //$NON-NLS-1S "d.png", //$NON-NLS-1S "i.png", //$NON-NLS-1S "w.png", //$NON-NLS-1S "e.png", //$NON-NLS-1S }; private Action mClearAction; private Clipboard mClipboard; /** * An implementation of {@link ILogFilterStorageManager} to bridge to the eclipse preference * store, and saves the log filters. */ private final class FilterStorage implements ILogFilterStorageManager { public LogFilter[] getFilterFromStore() { String filterPrefs = SyslogPlugin.getDefault().getPreferenceStore().getString(PREFS_FILTERS); // split in a string per filter String[] filters = filterPrefs.split("\\|"); // $NON-NLS-1$ ArrayList<LogFilter> list = new ArrayList<LogFilter>(filters.length); for (String f : filters) { if (f.length() > 0) { LogFilter logFilter = new LogFilter(); if (logFilter.loadFromString(f)) { list.add(logFilter); } } } return list.toArray(new LogFilter[list.size()]); } public void saveFilters(LogFilter[] filters) { StringBuilder sb = new StringBuilder(); for (LogFilter f : filters) { String filterString = f.toString(); sb.append(filterString); sb.append('|'); } SyslogPlugin.getDefault().getPreferenceStore().setValue(PREFS_FILTERS, sb.toString()); } public boolean requiresDefaultFilter() { return true; } } public LogCatView() { sThis = this; LogPanel.PREFS_TIME = PREFS_COL_TIME; LogPanel.PREFS_LEVEL = PREFS_COL_LEVEL; LogPanel.PREFS_PID = PREFS_COL_PID; LogPanel.PREFS_TAG = PREFS_COL_TAG; LogPanel.PREFS_MESSAGE = PREFS_COL_MESSAGE; } /** * Returns the singleton instance. */ public static LogCatView getInstance() { return sThis; } /** * Sets the display font. * @param font The font. */ public static void setFont(Font font) { if (sThis != null && sThis.mLogPanel != null) { sThis.mLogPanel.setFont(font); } } @Override public void createPartControl(Composite parent) { Display d = parent.getDisplay(); LogColors colors = new LogColors(); ImageLoader loader = ImageLoader.getDdmUiLibLoader(); colors.infoColor = new Color(d, 0, 127, 0); colors.debugColor = new Color(d, 0, 0, 127); colors.errorColor = new Color(d, 255, 0, 0); colors.warningColor = new Color(d, 255, 127, 0); colors.verboseColor = new Color(d, 0, 0, 0); mCreateFilterAction = new CommonAction("Create Filter") { @Override public void run() { mLogPanel.addFilter(); } }; mCreateFilterAction.setToolTipText("Create Filter"); mCreateFilterAction.setImageDescriptor(loader.loadDescriptor("add.png")); mEditFilterAction = new CommonAction("Edit Filter") { @Override public void run() { mLogPanel.editFilter(); } }; mEditFilterAction.setToolTipText("Edit Filter"); mEditFilterAction.setImageDescriptor(loader.loadDescriptor("edit.png")); // $NON-NLS-1$ mDeleteFilterAction = new CommonAction("Delete Filter") { @Override public void run() { mLogPanel.deleteFilter(); } }; mDeleteFilterAction.setToolTipText("Delete Filter"); mDeleteFilterAction.setImageDescriptor(loader.loadDescriptor("delete.png")); // $NON-NLS-1$ mExportAction = new CommonAction("Export Selection As Text...") { @Override public void run() { mLogPanel.save(); } }; mExportAction.setToolTipText("Export Selection As Text..."); mExportAction.setImageDescriptor(loader.loadDescriptor("save.png")); // $NON-NLS-1$ gotoLineAction = new CommonAction("Go to Problem") { @Override public void run() { goToErrorLine(); } }; LogLevel[] levels = LogLevel.values(); mLogLevelActions = new CommonAction[mLogLevelIcons.length]; for (int i = 0; i < mLogLevelActions.length; i++) { String name = levels[i].getStringValue(); mLogLevelActions[i] = new CommonAction(name, IAction.AS_CHECK_BOX) { @Override public void run() { // disable the other actions and record current index for (int i = 0; i < mLogLevelActions.length; i++) { Action a = mLogLevelActions[i]; if (a == this) { a.setChecked(true); // set the log level mLogPanel.setCurrentFilterLogLevel(i + 2); } else { a.setChecked(false); } } } }; mLogLevelActions[i].setToolTipText(name); mLogLevelActions[i].setImageDescriptor(loader.loadDescriptor(mLogLevelIcons[i])); } mClearAction = new Action("Clear Log") { @Override public void run() { mLogPanel.clear(); } }; mClearAction.setImageDescriptor(loader.loadDescriptor("clear.png")); // $NON-NLS-1$ // now create the log view mLogPanel = new LogPanel(colors, new FilterStorage(), LogPanel.FILTER_MANUAL); mLogPanel.setActions(mDeleteFilterAction, mEditFilterAction, mLogLevelActions); // get the font String fontStr = SyslogPlugin.getDefault().getPreferenceStore() .getString(PreferenceInitializer.ATTR_LOGCAT_FONT); if (fontStr != null) { FontData data = new FontData(fontStr); if (fontStr != null) { mLogPanel.setFont(new Font(parent.getDisplay(), data)); } } mLogPanel.createPanel(parent); setSelectionDependentPanel(mLogPanel); // place the actions. placeActions(); // setup the copy action mClipboard = new Clipboard(d); IActionBars actionBars = getViewSite().getActionBars(); actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(), new Action("Copy") { @Override public void run() { mLogPanel.copy(mClipboard); } }); // setup the select all action actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), new Action("Select All") { @Override public void run() { mLogPanel.selectAll(); } }); } @Override public void dispose() { mLogPanel.stopLogCat(true); mClipboard.dispose(); } @Override public void setFocus() { mLogPanel.setFocus(); } /** * Place the actions in the ui. */ private void placeActions() { IActionBars actionBars = getViewSite().getActionBars(); // first in the menu IMenuManager menuManager = actionBars.getMenuManager(); menuManager.add(mCreateFilterAction); menuManager.add(mEditFilterAction); menuManager.add(mDeleteFilterAction); menuManager.add(new Separator()); menuManager.add(mClearAction); menuManager.add(new Separator()); menuManager.add(mExportAction); menuManager.add(gotoLineAction); // and then in the toolbar IToolBarManager toolBarManager = actionBars.getToolBarManager(); for (CommonAction a : mLogLevelActions) { toolBarManager.add(a); } toolBarManager.add(new Separator()); toolBarManager.add(mCreateFilterAction); toolBarManager.add(mEditFilterAction); toolBarManager.add(mDeleteFilterAction); toolBarManager.add(new Separator()); toolBarManager.add(mClearAction); } IMarker createMarkerFromSearchMatch(IFile file, SearchMatch match) { HashMap<String, Object> map = new HashMap<String, Object>(); map.put(IMarker.CHAR_START, new Integer(match.getOffset())); map.put(IMarker.CHAR_END, new Integer(match.getOffset() + match.getLength())); IMarker marker = null; try { marker = file.createMarker(IMarker.TEXT); marker.setAttributes(map); } catch (CoreException e) { Status s = new Status(Status.ERROR, SyslogPlugin.PLUGIN_ID, e.getMessage(), e); SyslogPlugin.getDefault().getLog().log(s); } return marker; } void openFile(IFile file, IMarker marker) { try { IWorkbenchPage page = getViewSite().getWorkbenchWindow().getActivePage(); if (page != null) { IDE.openEditor(page, marker); marker.delete(); } } catch (CoreException e) { Status s = new Status(Status.ERROR, SyslogPlugin.PLUGIN_ID, e.getMessage(), e); SyslogPlugin.getDefault().getLog().log(s); } } void switchPerspective() { IWorkbenchWindow window = getViewSite().getWorkbenchWindow().getWorkbench().getActiveWorkbenchWindow(); String rtPerspectiveId = "org.eclipse.jdt.ui.JavaPerspective"; IPerspectiveRegistry reg = WorkbenchPlugin.getDefault().getPerspectiveRegistry(); PerspectiveDescriptor rtPerspectiveDesc = (PerspectiveDescriptor) reg .findPerspectiveWithId(rtPerspectiveId); if (window != null) { IWorkbenchPage page = window.getActivePage(); page.setPerspective(rtPerspectiveDesc); } } void goToErrorLine() { try { String msg = mLogPanel.getSelectedErrorLineMessage(); if (msg != null) { String error_line_matcher_string = "\\s*at\\ (.*)\\((.*\\.java)\\:(\\d+)\\)"; Matcher error_line_matcher = Pattern.compile(error_line_matcher_string).matcher(msg); if (error_line_matcher.find()) { String class_name = error_line_matcher.group(1); // TODO: Search currently only matches the class declaration (using // IJavaSearchConstants.DECLARATIONS). We may want to jump to the // "reference" of the class instead (IJavaSearchConstants.REFERENCES) // using the filename and line number to disambiguate the search results. // String filename = error_line_matcher.group(2); // int line_number = Integer.parseInt(error_line_matcher.group(3)); SearchEngine se = new SearchEngine(); se.search( SearchPattern.createPattern(class_name, IJavaSearchConstants.METHOD, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE), new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() }, SearchEngine.createWorkspaceScope(), new SearchRequestor() { boolean found_first_match = false; @Override public void acceptSearchMatch(SearchMatch match) throws CoreException { if (match.getResource() instanceof IFile && !found_first_match) { found_first_match = true; IFile matched_file = (IFile) match.getResource(); IMarker marker = createMarkerFromSearchMatch(matched_file, match); // There should only be one exact match, // so we go immediately to that one. switchPerspective(); openFile(matched_file, marker); } } }, new NullProgressMonitor()); } } } catch (Exception e) { Status s = new Status(Status.ERROR, SyslogPlugin.PLUGIN_ID, e.getMessage(), e); SyslogPlugin.getDefault().getLog().log(s); } } }