Java tutorial
/******************************************************************************* * Copyright (c) 2014 Kalray.eu * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Xavier Raynaud <xavier.raynaud@kalray.eu> - initial API and implementation * Red Hat Inc. - fix #408543 *******************************************************************************/ package org.eclipse.linuxtools.internal.gprof.launch; import java.util.AbstractMap.SimpleEntry; import java.util.ArrayList; import java.util.List; import java.util.Map.Entry; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.window.Window; import org.eclipse.linuxtools.profiling.ui.TitleAreaDialogWithRadioButtons; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.dialogs.ElementTreeSelectionDialog; import org.eclipse.ui.model.WorkbenchContentProvider; import org.eclipse.ui.model.WorkbenchLabelProvider; import org.eclipse.ui.views.navigator.ResourceComparator; /** * Dialog displayed when no gmon.out is found. This happens after -pg flag options check, * meaning that it's probably a makefile project or gmon.out is generated elesewhere. * User is promted with Radio options whether he wants to browse the workspace, file system or cancle the launch. * He/she can either recompile the project, or search gmon.out file in another location. */ public class GprofNoGmonDialog { private String gmonExpected; /** * <h1>Construct a new dialogue for missing gprof file. </h1> * <p> * Prompt the user to browse workspace or file system if gprof file is not found. <br> * Note, this should be instantiated inside a UI thread. * </p> * * @param project The IProject that the user will browse if file is missing. * @param shell the shell on top of which this dialogue will show. */ public GprofNoGmonDialog(IProject project, Shell shell) { // Missing gmon.out logic: // This point is reached if pg flags were not set. (e.g in an unmanaged makefile project.) // or PG flag was set but gmon.out could not be found. // Construct Dialog for user. // Declare a list for the buttons. List<Entry<String, String>> buttonList = new ArrayList<>(); // Add buttons: buttonList.add(new SimpleEntry<>("browseWorkSpace", GprofLaunchMessages.GprofNoGmonOut_BrowseWorkSpace)); //$NON-NLS-1$ buttonList.add(new SimpleEntry<>("browseFileSystem", GprofLaunchMessages.GprofNoGmonOut_BrowseFileSystem)); //$NON-NLS-1$ buttonList.add(new SimpleEntry<>("cancleLaunch", GprofLaunchMessages.GprofNoGmonOut_CancleLaunch)); //$NON-NLS-1$ // Set Dialogue options. String title = GprofLaunchMessages.GprofNoGmonOut_title; String body = GprofLaunchMessages.GprofNoGmonOut_body; int msgType = IMessageProvider.ERROR; // Instantiate & open the dialogue. TitleAreaDialogWithRadioButtons gmonMissingDialog = new TitleAreaDialogWithRadioButtons(shell, title, body, buttonList, msgType); int retVal = gmonMissingDialog.open(); // Handle user's selection. (OK/ Cancle) switch (retVal) { case Window.OK: // Handle which button the user selected. switch (gmonMissingDialog.getSelectedButton()) { case "browseWorkSpace": //$NON-NLS-1$ gmonExpected = browseWorkspaceHandler(shell, project); break; case "browseFileSystem": //$NON-NLS-1$ gmonExpected = browseFileSystemHandler(shell, project); //gmonExpected = browseFileSystemHandler(parent); break; default: // this can happen if the user pressed escape. gmonExpected = null; return; } case Window.CANCEL: return; // Launch cancled if user clicked Cancle. default: return; // if somethign broke with the dialogue (manual kill, cancle launch). } } /** * Retrieve location of gmon.out file after dialogue(s) completed. */ public String getGmonExpected() { return this.gmonExpected; } /** * Browse file sytem to find gmon.out. Return null if bad input. */ private static String browseFileSystemHandler(Shell shell, IProject project) { FileDialog dialog = new FileDialog((shell != null) ? shell : new Shell(), SWT.OPEN); dialog.setText(GprofLaunchMessages.GprofNoGmonDialog_OpenGmon); // Open Project path. if (project != null) { dialog.setFilterPath(project.getLocation().toOSString()); } //return gmon.oot path string to caller. null if not selected or user pressed cancle. return dialog.open(); // } /** * Handle the case when the user browses the Workspace. * @param parent * @return gmon.out location or null if bad. */ private static String browseWorkspaceHandler(Shell shell, IProject project) { //New tree Dialogue. ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(shell, new WorkbenchLabelProvider(), new WorkbenchContentProvider()); //Set dialogue settings. dialog.setTitle(GprofLaunchMessages.GprofNoGmonDialog_OpenGmon); dialog.setMessage(GprofLaunchMessages.GprofNoGmonDialog_OpenGmon); dialog.setInput(ResourcesPlugin.getWorkspace().getRoot()); dialog.setComparator(new ResourceComparator(ResourceComparator.NAME)); dialog.setAllowMultiple(false); dialog.setInitialSelection(project); dialog.setValidator(selection -> { if (selection.length != 1) { return new Status(IStatus.ERROR, GprofLaunch.PLUGIN_ID, 0, "", null); //$NON-NLS-1$ } if (!(selection[0] instanceof IFile)) { return new Status(IStatus.ERROR, GprofLaunch.PLUGIN_ID, 0, "", null); //$NON-NLS-1$ } return new Status(IStatus.OK, GprofLaunch.PLUGIN_ID, 0, "", null); //$NON-NLS-1$ }); //Open dialogue. if (dialog.open() == IDialogConstants.OK_ID) { IResource resource = (IResource) dialog.getFirstResult(); return resource.getLocation().toOSString(); // If things were ok, return the gmon path. } else { return null; } } }