| 1 | /********************************************************************** |
| 2 | * Copyright (c) 2012, 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.lttng2.ui.views.control.handlers; |
| 13 | |
| 14 | import java.util.concurrent.locks.ReentrantLock; |
| 15 | |
| 16 | import org.eclipse.core.commands.AbstractHandler; |
| 17 | import org.eclipse.core.commands.ExecutionException; |
| 18 | import org.eclipse.core.runtime.IProgressMonitor; |
| 19 | import org.eclipse.core.runtime.IStatus; |
| 20 | import org.eclipse.core.runtime.Status; |
| 21 | import org.eclipse.core.runtime.jobs.Job; |
| 22 | import org.eclipse.linuxtools.internal.lttng2.ui.Activator; |
| 23 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView; |
| 24 | import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages; |
| 25 | import org.eclipse.ui.IWorkbenchPage; |
| 26 | import org.eclipse.ui.IWorkbenchPart; |
| 27 | import org.eclipse.ui.IWorkbenchWindow; |
| 28 | import org.eclipse.ui.PlatformUI; |
| 29 | |
| 30 | /** |
| 31 | * <p> |
| 32 | * Abstract Command handler implementation for all control view handlers. |
| 33 | * </p> |
| 34 | * |
| 35 | * @author Bernd Hufmann |
| 36 | */ |
| 37 | public abstract class BaseControlViewHandler extends AbstractHandler { |
| 38 | |
| 39 | // ------------------------------------------------------------------------ |
| 40 | // Attributes |
| 41 | // ------------------------------------------------------------------------ |
| 42 | /** |
| 43 | * The synchronization lock. |
| 44 | */ |
| 45 | protected final ReentrantLock fLock = new ReentrantLock(); |
| 46 | |
| 47 | // ------------------------------------------------------------------------ |
| 48 | // Operations |
| 49 | // ------------------------------------------------------------------------ |
| 50 | /** |
| 51 | * @return returns the workbench page for the Control View |
| 52 | */ |
| 53 | protected IWorkbenchPage getWorkbenchPage() { |
| 54 | // Check if we are closing down |
| 55 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| 56 | if (window == null) { |
| 57 | return null; |
| 58 | } |
| 59 | |
| 60 | // Check if we are in the Project View |
| 61 | IWorkbenchPage page = window.getActivePage(); |
| 62 | if (page == null) { |
| 63 | return null; |
| 64 | } |
| 65 | |
| 66 | IWorkbenchPart part = page.getActivePart(); |
| 67 | if (!(part instanceof ControlView)) { |
| 68 | return null; |
| 69 | } |
| 70 | return page; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Refreshes the session information based on given session (in CommandParameter) |
| 75 | * @param param - command parameter containing the session to refresh |
| 76 | */ |
| 77 | protected void refresh(final CommandParameter param) { |
| 78 | Job job = new Job(Messages.TraceControl_RetrieveNodeConfigurationJob) { |
| 79 | |
| 80 | @Override |
| 81 | protected IStatus run(IProgressMonitor monitor) { |
| 82 | try { |
| 83 | param.getSession().getConfigurationFromNode(monitor); |
| 84 | } catch (ExecutionException e) { |
| 85 | return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_ListSessionFailure, e); |
| 86 | } |
| 87 | return Status.OK_STATUS; |
| 88 | } |
| 89 | }; |
| 90 | job.setUser(true); |
| 91 | job.schedule(); |
| 92 | } |
| 93 | |
| 94 | } |