org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/handlers/CreateSessionHandler.java

   1 /**********************************************************************
   2  * Copyright (c) 2012 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.lttng.ui.views.control.handlers;
  13
  14 import org.eclipse.core.commands.ExecutionEvent;
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.core.runtime.jobs.Job;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.jface.window.Window;
  23 import org.eclipse.linuxtools.lttng.ui.LTTngUiPlugin;
  24 import org.eclipse.linuxtools.lttng.ui.views.control.ControlView;
  25 import org.eclipse.linuxtools.lttng.ui.views.control.Messages;
  26 import org.eclipse.linuxtools.lttng.ui.views.control.dialogs.CreateSessionDialog;
  27 import org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog;
  28 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceSessionGroup;
  29 import org.eclipse.ui.IWorkbenchPage;
  30 import org.eclipse.ui.IWorkbenchWindow;
  31 import org.eclipse.ui.PlatformUI;
  32
  33 /**
  34  * <b><u>CreateSessionHandler</u></b>
  35  * <p>
  36  * Command handler implementation to create a trace session.
  37  * </p>
  38  */
  39 public class CreateSessionHandler extends BaseControlViewHandler {
  40
  41     // ------------------------------------------------------------------------
  42     // Attributes
  43     // ------------------------------------------------------------------------
  44     /**
  45      * The trace session group the command is to be executed on.
  46      */
  47     private TraceSessionGroup fSessionGroup = null;
  48
  49     // ------------------------------------------------------------------------
  50     // Operations
  51     // ------------------------------------------------------------------------
  52     /*
  53      * (non-Javadoc)
  54      * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  55      */
  56     @Override
  57     public Object execute(ExecutionEvent event) throws ExecutionException {
  58         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  59         if (window == null) {
  60             return false;
  61         }
  62
  63         // Open dialog box for the node name and address
  64         ICreateSessionDialog dialog = new CreateSessionDialog(window.getShell(), fSessionGroup);
  65
  66         if (dialog.open() != Window.OK) {
  67             return null;
  68         }
  69
  70         final String sessionName = dialog.getSessionName();
  71         final String sessionPath = dialog.isDefaultSessionPath() ? null : dialog.getSessionPath();
  72
  73         Job job = new Job(Messages.TraceControl_CreateSessionJob) {
  74             @Override
  75             protected IStatus run(IProgressMonitor monitor) {
  76                 try {
  77                     fSessionGroup.createSession(sessionName, sessionPath, monitor);
  78                 } catch (ExecutionException e) {
  79                     return new Status(Status.ERROR, LTTngUiPlugin.PLUGIN_ID, e.toString());
  80                 }
  81                 return Status.OK_STATUS;
  82             }
  83         };
  84         job.setUser(true);
  85         job.schedule();
  86
  87         return null;
  88     }
  89
  90     /*
  91      * (non-Javadoc)
  92      * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
  93      */
  94     @Override
  95     public boolean isEnabled() {
  96
  97         // Get workbench page for the Control View
  98         IWorkbenchPage page = getWorkbenchPage();
  99         if (page == null) {
 100             return false;
 101         }
 102
 103         fSessionGroup = null;
 104
 105         // Check if the session group project is selected
 106         ISelection selection = page.getSelection(ControlView.ID);
 107         if (selection instanceof StructuredSelection) {
 108             Object element = ((StructuredSelection) selection).getFirstElement();
 109             fSessionGroup = (element instanceof TraceSessionGroup) ? (TraceSessionGroup) element : null;
 110         }
 111         return fSessionGroup != null;
 112     }
 113 }