| /********************************************************************** |
| * Copyright (c) 2012, 2015 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Bernd Hufmann - Initial API and implementation |
| **********************************************************************/ |
| package org.eclipse.tracecompass.internal.lttng2.control.ui.views.handlers; |
| |
| import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceSessionState; |
| import org.eclipse.tracecompass.internal.lttng2.control.ui.views.ControlView; |
| import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceEventComponent; |
| import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceSessionComponent; |
| import org.eclipse.ui.IWorkbenchPage; |
| |
| /** |
| * <p> |
| * Command handler implementation to add contexts to a given event. |
| * </p> |
| * |
| * @author Bernd Hufmann |
| */ |
| public class AddContextOnEventHandler extends BaseAddContextHandler { |
| |
| // ------------------------------------------------------------------------ |
| // Attributes |
| // ------------------------------------------------------------------------ |
| |
| // ------------------------------------------------------------------------ |
| // Operations |
| // ------------------------------------------------------------------------ |
| |
| @Override |
| public void addContexts(CommandParameter param, List<String> contextNames, IProgressMonitor monitor) throws ExecutionException { |
| if (param instanceof EventCommandParameter) { |
| TraceEventComponent event = ((EventCommandParameter)param).getEvent(); |
| event.addContexts(contextNames, monitor); |
| } |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| // Get workbench page for the Control View |
| IWorkbenchPage page = getWorkbenchPage(); |
| if (page == null) { |
| return false; |
| } |
| |
| TraceEventComponent event = null; |
| TraceSessionComponent session = null; |
| ISelection selection = page.getSelection(ControlView.ID); |
| if (selection instanceof StructuredSelection) { |
| StructuredSelection structered = ((StructuredSelection) selection); |
| for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) { |
| Object element = iterator.next(); |
| if (element instanceof TraceEventComponent) { |
| // Add only if corresponding TraceSessionComponents is inactive and not destroyed |
| TraceEventComponent tmpEvent = (TraceEventComponent) element; |
| session = tmpEvent.getSession(); |
| if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) { |
| event = tmpEvent; |
| } |
| } |
| } |
| } |
| |
| boolean isEnabled = (event != null); |
| fLock.lock(); |
| try { |
| fParam = null; |
| if(isEnabled) { |
| fParam = new EventCommandParameter(checkNotNull(session), checkNotNull(event)); |
| } |
| } finally { |
| fLock.unlock(); |
| } |
| return isEnabled; |
| } |
| } |