2010-10-26 Francois Chouinard <fchouinard@gmail.com> Contribution for Bug309042

[deliverable/tracecompass.git] / org.eclipse.linuxtools.tmf.ui / src / org / eclipse / linuxtools / tmf / ui / views / project / handlers / SelectParserHandler.java

/*******************************************************************************\r
 * Copyright (c) 2010 Ericsson\r
 * \r
 * All rights reserved. This program and the accompanying materials are\r
 * made available under the terms of the Eclipse Public License v1.0 which\r
 * accompanies this distribution, and is available at\r
 * http://www.eclipse.org/legal/epl-v10.html\r
 * \r
 * Contributors:\r
 *   Patrick Tasse - Initial API and implementation\r
 *******************************************************************************/\r
\r
package org.eclipse.linuxtools.tmf.ui.views.project.handlers;\r
\r
import org.eclipse.core.commands.AbstractHandler;\r
import org.eclipse.core.commands.ExecutionEvent;\r
import org.eclipse.core.commands.ExecutionException;\r
import org.eclipse.core.resources.IResource;\r
import org.eclipse.core.runtime.CoreException;\r
import org.eclipse.jface.viewers.ISelection;\r
import org.eclipse.jface.viewers.StructuredSelection;\r
import org.eclipse.linuxtools.tmf.event.TmfEvent;\r
import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;\r
import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal;\r
import org.eclipse.linuxtools.tmf.signal.TmfTraceParserUpdatedSignal;\r
import org.eclipse.linuxtools.tmf.trace.ITmfTrace;\r
import org.eclipse.linuxtools.tmf.ui.parsers.ParserProviderManager;\r
import org.eclipse.linuxtools.tmf.ui.views.project.ProjectView;\r
import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfExperimentNode;\r
import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfTraceNode;\r
import org.eclipse.ui.IWorkbenchPage;\r
import org.eclipse.ui.IWorkbenchWindow;\r
import org.eclipse.ui.PlatformUI;\r
\r
/**\r
 * <b><u>OpenTraceHandler</u></b>\r
 * <p>\r
 */\r
public class SelectParserHandler extends AbstractHandler {\r
\r
    private TmfTraceNode fTrace = null;\r
    private ProjectView fProjectView = null;\r
\r
    // ------------------------------------------------------------------------\r
    // Validation\r
    // ------------------------------------------------------------------------\r
\r
	@Override\r
    public boolean isEnabled() {\r
        \r
        // Check if we are closing down\r
        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();\r
        if (window == null)\r
            return false;\r
\r
        // Check if a trace is selected\r
        IWorkbenchPage page = window.getActivePage();\r
        if (!(page.getActivePart() instanceof ProjectView))\r
            return false;\r
        fProjectView = (ProjectView) page.getActivePart();\r
\r
        // Check if a trace is selected\r
        ISelection selection = page.getSelection(ProjectView.ID);\r
        if (selection instanceof StructuredSelection) {\r
            Object element = ((StructuredSelection) selection).getFirstElement();\r
            fTrace = (element instanceof TmfTraceNode) ? (TmfTraceNode) element : null;\r
        }\r
\r
        return (fTrace != null);\r
    }\r
\r
    // ------------------------------------------------------------------------\r
    // Execution\r
    // ------------------------------------------------------------------------\r
\r
    @Override\r
	@SuppressWarnings("unchecked")\r
	public Object execute(ExecutionEvent event) throws ExecutionException {\r
        IResource resource = fTrace.getResource();\r
        if (fTrace.getParent() instanceof TmfExperimentNode) {\r
            resource = fTrace.getProject().getTracesFolder().getTraceForLocation(resource.getLocation()).getResource();\r
        }\r
        String parser = event.getParameter("org.eclipse.linuxtools.tmf.ui.commandparameter.project.trace.selectparser.parser");\r
        try {\r
            resource.setPersistentProperty(ParserProviderManager.PARSER_PROPERTY, parser);\r
            fProjectView.broadcast(new TmfTraceParserUpdatedSignal(fProjectView, resource));\r
            fTrace.getProject().refresh();\r
            \r
            TmfExperiment<TmfEvent> currentExperiment = (TmfExperiment<TmfEvent>) TmfExperiment.getCurrentExperiment();\r
            if (currentExperiment != null) {\r
                for (int i = 0; i < currentExperiment.getTraces().length; i++) {\r
                    ITmfTrace trace = currentExperiment.getTraces()[i];\r
                    if (resource.getLocation().toOSString().equals(trace.getPath())) {\r
                        ITmfTrace newTrace = ParserProviderManager.getTrace(resource);\r
                        if (newTrace != null) {\r
                            currentExperiment.getTraces()[i] = newTrace;\r
                            fProjectView.broadcast(new TmfExperimentSelectedSignal<TmfEvent>(new Object(), currentExperiment));\r
                        }\r
                    }\r
                }\r
            }\r
        } catch (CoreException e) {\r
            e.printStackTrace();\r
        }\r
        return null;\r
    }\r
\r
}\r