org.eclipse.linuxtools.tracing.rcp.ui/src/org/eclipse/linuxtools/internal/tracing/rcp/ui/Application.java

   1 /**********************************************************************
   2  * Copyright (c) 2013 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.linuxtools.internal.tracing.rcp.ui;
  13
  14 import java.io.File;
  15 import java.net.URL;
  16 import java.text.MessageFormat;
  17
  18 import org.eclipse.core.runtime.Platform;
  19 import org.eclipse.equinox.app.IApplication;
  20 import org.eclipse.equinox.app.IApplicationContext;
  21 import org.eclipse.jface.dialogs.MessageDialog;
  22 import org.eclipse.linuxtools.internal.tracing.rcp.ui.messages.Messages;
  23 import org.eclipse.osgi.service.datalocation.Location;
  24 import org.eclipse.swt.widgets.Display;
  25 import org.eclipse.ui.IWorkbench;
  26 import org.eclipse.ui.PlatformUI;
  27
  28 /**
  29  * This class controls all aspects of the application's execution
  30  * @author Bernd Hufmann
  31  */
  32 public class Application implements IApplication {
  33
  34     @Override
  35     public Object start(IApplicationContext context) throws Exception {
  36         Display display = PlatformUI.createDisplay();
  37         try {
  38             // fetch the Location that we will be modifying
  39             Location instanceLoc = Platform.getInstanceLocation();
  40
  41             // -data @noDefault in <applName>.ini allows us to set the workspace here.
  42             // If the user wants to change the location then he has to change
  43             // @noDefault to a specific location or remove -data @noDefault for
  44             // default location
  45             if (!instanceLoc.allowsDefault() && !instanceLoc.isSet()) {
  46                 File workspaceRoot = new File(TracingRcpPlugin.getWorkspaceRoot());
  47
  48                 if (!workspaceRoot.exists()) {
  49                     MessageDialog.openError(display.getActiveShell(),
  50                             Messages.Application_WorkspaceCreationError,
  51                             MessageFormat.format(Messages.Application_WorkspaceRootNotExistError, new Object[] { TracingRcpPlugin.getWorkspaceRoot() }));
  52                     return IApplication.EXIT_OK;
  53                 }
  54
  55                 if (!workspaceRoot.canWrite()) {
  56                     MessageDialog.openError(display.getActiveShell(),
  57                             Messages.Application_WorkspaceCreationError,
  58                             MessageFormat.format(Messages.Application_WorkspaceRootPermissionError, new Object[] { TracingRcpPlugin.getWorkspaceRoot() }));
  59                     return IApplication.EXIT_OK;
  60                 }
  61
  62                 String workspace = TracingRcpPlugin.getWorkspaceRoot() + File.separator + TracingRcpPlugin.WORKSPACE_NAME;
  63                 // set location to workspace
  64                 instanceLoc.set(new URL("file", null, workspace), false); //$NON-NLS-1$
  65             }
  66
  67             int returnCode = PlatformUI.createAndRunWorkbench(display, new ApplicationWorkbenchAdvisor());
  68             if (returnCode == PlatformUI.RETURN_RESTART) {
  69                 return IApplication.EXIT_RESTART;
  70             }
  71             return IApplication.EXIT_OK;
  72         } finally {
  73             display.dispose();
  74         }
  75     }
  76
  77     @Override
  78     public void stop() {
  79         if (!PlatformUI.isWorkbenchRunning()) {
  80             return;
  81         }
  82         final IWorkbench workbench = PlatformUI.getWorkbench();
  83         final Display display = workbench.getDisplay();
  84         display.syncExec(new Runnable() {
  85             @Override
  86             public void run() {
  87                 if (!display.isDisposed()) {
  88                     workbench.close();
  89                 }
  90             }
  91         });
  92     }
  93 }