lttng/org.eclipse.tracecompass.lttng2.control.ui/src/org/eclipse/tracecompass/internal/lttng2/control/ui/views/handlers/ExecuteCommandScriptHandler.java

   1 /**********************************************************************
   2  * Copyright (c) 2014 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.tracecompass.internal.lttng2.control.ui.views.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.tracecompass.internal.lttng2.control.ui.Activator;
  24 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.ControlView;
  25 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.dialogs.ISelectCommandScriptDialog;
  26 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.dialogs.TraceControlDialogFactory;
  27 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.messages.Messages;
  28 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceSessionGroup;
  29 import org.eclipse.ui.IWorkbenchPage;
  30
  31 /**
  32  * <p>
  33  * Command handler implementation to execute commands of a command script.
  34  * </p>
  35  *
  36  * @author Bernd Hufmann
  37  */
  38 public class ExecuteCommandScriptHandler extends BaseControlViewHandler {
  39
  40     // ------------------------------------------------------------------------
  41     // Attributes
  42     // ------------------------------------------------------------------------
  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     @Override
  54     public Object execute(ExecutionEvent event) throws ExecutionException {
  55
  56         fLock.lock();
  57         try {
  58             final TraceSessionGroup sessionGroup = fSessionGroup;
  59
  60             // Open dialog box for the node name and address
  61             final ISelectCommandScriptDialog dialog = TraceControlDialogFactory.getInstance().getCommandScriptDialog();
  62
  63             if (dialog.open() != Window.OK) {
  64                 return null;
  65             }
  66
  67             Job job = new Job(Messages.TraceControl_ExecuteScriptJob) {
  68                 @Override
  69                 protected IStatus run(IProgressMonitor monitor) {
  70                     try {
  71                         sessionGroup.executeCommands(monitor, dialog.getCommands());
  72                     } catch (ExecutionException e) {
  73                         return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_CreateSessionFailure, e);
  74                     }
  75                     return Status.OK_STATUS;
  76                 }
  77             };
  78             job.setUser(true);
  79             job.schedule();
  80         } finally {
  81             fLock.unlock();
  82         }
  83         return null;
  84     }
  85
  86     @Override
  87     public boolean isEnabled() {
  88
  89         // Get workbench page for the Control View
  90         IWorkbenchPage page = getWorkbenchPage();
  91         if (page == null) {
  92             return false;
  93         }
  94
  95         TraceSessionGroup sessionGroup = null;
  96
  97         // Check if the session group project is selected
  98         ISelection selection = page.getSelection(ControlView.ID);
  99         if (selection instanceof StructuredSelection) {
 100             Object element = ((StructuredSelection) selection).getFirstElement();
 101             sessionGroup = (element instanceof TraceSessionGroup) ? (TraceSessionGroup) element : null;
 102         }
 103
 104         boolean isEnabled = sessionGroup != null;
 105         fLock.lock();
 106         try {
 107             fSessionGroup = null;
 108             if(isEnabled) {
 109                 fSessionGroup = sessionGroup;
 110             }
 111         } finally {
 112             fLock.unlock();
 113         }
 114         return isEnabled;
 115     }
 116 }