| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2009, 2010, 2011 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 | * Francois Chouinard - Initial API and implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.linuxtools.tmf.ui.project.handlers; |
| 14 | |
| 15 | import java.io.FileNotFoundException; |
| 16 | |
| 17 | import org.eclipse.core.commands.AbstractHandler; |
| 18 | import org.eclipse.core.commands.ExecutionEvent; |
| 19 | import org.eclipse.core.commands.ExecutionException; |
| 20 | import org.eclipse.core.resources.IResource; |
| 21 | import org.eclipse.jface.viewers.ISelection; |
| 22 | import org.eclipse.jface.viewers.ISelectionProvider; |
| 23 | import org.eclipse.jface.viewers.TreeSelection; |
| 24 | import org.eclipse.linuxtools.tmf.core.event.TmfEvent; |
| 25 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperiment; |
| 26 | import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentSelectedSignal; |
| 27 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; |
| 28 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; |
| 29 | import org.eclipse.linuxtools.tmf.ui.editors.TmfEditorInput; |
| 30 | import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceElement; |
| 31 | import org.eclipse.swt.widgets.MessageBox; |
| 32 | import org.eclipse.ui.IEditorInput; |
| 33 | import org.eclipse.ui.IEditorPart; |
| 34 | import org.eclipse.ui.IReusableEditor; |
| 35 | import org.eclipse.ui.IWorkbench; |
| 36 | import org.eclipse.ui.IWorkbenchPage; |
| 37 | import org.eclipse.ui.IWorkbenchPart; |
| 38 | import org.eclipse.ui.IWorkbenchWindow; |
| 39 | import org.eclipse.ui.PartInitException; |
| 40 | import org.eclipse.ui.PlatformUI; |
| 41 | |
| 42 | /** |
| 43 | * <b><u>OpenTraceHandler</u></b> |
| 44 | * <p> |
| 45 | * TODO: Add support for multiple trace selection |
| 46 | */ |
| 47 | public class OpenTraceHandler extends AbstractHandler { |
| 48 | |
| 49 | // ------------------------------------------------------------------------ |
| 50 | // Attributes |
| 51 | // ------------------------------------------------------------------------ |
| 52 | |
| 53 | private TmfTraceElement fTrace = null; |
| 54 | |
| 55 | // ------------------------------------------------------------------------ |
| 56 | // Validation |
| 57 | // ------------------------------------------------------------------------ |
| 58 | |
| 59 | @Override |
| 60 | public boolean isEnabled() { |
| 61 | |
| 62 | // Check if we are closing down |
| 63 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| 64 | if (window == null) |
| 65 | return false; |
| 66 | |
| 67 | // Get the selection |
| 68 | IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); |
| 69 | IWorkbenchPart part = page.getActivePart(); |
| 70 | ISelectionProvider selectionProvider = part.getSite().getSelectionProvider(); |
| 71 | if (selectionProvider == null) |
| 72 | return false; |
| 73 | ISelection selection = selectionProvider.getSelection(); |
| 74 | |
| 75 | // Make sure there is only one selection and that it is a trace |
| 76 | fTrace = null; |
| 77 | if (selection instanceof TreeSelection) { |
| 78 | TreeSelection sel = (TreeSelection) selection; |
| 79 | // There should be only one item selected as per the plugin.xml |
| 80 | Object element = sel.getFirstElement(); |
| 81 | if (element instanceof TmfTraceElement) { |
| 82 | fTrace = (TmfTraceElement) element; |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | // We only enable opening from the Traces folder for now |
| 87 | return (fTrace != null); |
| 88 | } |
| 89 | |
| 90 | // ------------------------------------------------------------------------ |
| 91 | // Execution |
| 92 | // ------------------------------------------------------------------------ |
| 93 | |
| 94 | @Override |
| 95 | @SuppressWarnings({ "rawtypes", "unchecked" }) |
| 96 | public Object execute(ExecutionEvent event) throws ExecutionException { |
| 97 | |
| 98 | // Check if we are closing down |
| 99 | IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| 100 | if (window == null) |
| 101 | return null; |
| 102 | |
| 103 | // Check that the trace is valid |
| 104 | if (fTrace == null) { |
| 105 | return null; |
| 106 | } |
| 107 | |
| 108 | TmfEvent traceEvent = fTrace.instantiateEvent(); |
| 109 | ITmfTrace trace = fTrace.instantiateTrace(); |
| 110 | if (trace == null) { |
| 111 | displayErrorMsg(Messages.OpenTraceHandler_NoTraceType); |
| 112 | return null; |
| 113 | } |
| 114 | |
| 115 | // Get the editor_id from the extension point |
| 116 | String editorId = fTrace.getEditorId(); |
| 117 | boolean usesEditor = editorId != null && editorId.length() > 0; |
| 118 | |
| 119 | try { |
| 120 | trace.initTrace(fTrace.getLocation().getPath(), traceEvent.getClass(), usesEditor); |
| 121 | } catch (FileNotFoundException e) { |
| 122 | displayErrorMsg(Messages.OpenTraceHandler_NoTrace); |
| 123 | return null; |
| 124 | } |
| 125 | |
| 126 | if (usesEditor) { |
| 127 | try { |
| 128 | IResource resource = fTrace.getResource(); |
| 129 | IEditorInput editorInput = new TmfEditorInput(resource, trace); |
| 130 | IWorkbench wb = PlatformUI.getWorkbench(); |
| 131 | IWorkbenchPage activePage = wb.getActiveWorkbenchWindow().getActivePage(); |
| 132 | |
| 133 | IEditorPart editor = activePage.findEditor(editorInput); |
| 134 | if (editor != null && editor instanceof IReusableEditor) { |
| 135 | activePage.reuseEditor((IReusableEditor) editor, editorInput); |
| 136 | activePage.activate(editor); |
| 137 | } else { |
| 138 | editor = activePage.openEditor(editorInput, editorId); |
| 139 | } |
| 140 | } catch (PartInitException e) { |
| 141 | e.printStackTrace(); |
| 142 | } |
| 143 | |
| 144 | } else { |
| 145 | // Close the current experiment, if any |
| 146 | TmfExperiment<?> currentExperiment = TmfExperiment.getCurrentExperiment(); |
| 147 | if (currentExperiment != null) { |
| 148 | currentExperiment.dispose(); |
| 149 | } |
| 150 | |
| 151 | // Open the new experiment and broadcast |
| 152 | ITmfTrace[] traces = new ITmfTrace[] { trace }; |
| 153 | TmfExperiment experiment = new TmfExperiment(traceEvent.getClass(), fTrace.getName(), traces, trace.getCacheSize()); |
| 154 | TmfExperiment.setCurrentExperiment(experiment); |
| 155 | TmfSignalManager.dispatchSignal(new TmfExperimentSelectedSignal(this, experiment)); |
| 156 | } |
| 157 | return null; |
| 158 | } |
| 159 | |
| 160 | private void displayErrorMsg(String errorMsg) { |
| 161 | MessageBox mb = new MessageBox(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()); |
| 162 | mb.setText(Messages.OpenTraceHandler_Title); |
| 163 | mb.setMessage(errorMsg); |
| 164 | mb.open(); |
| 165 | } |
| 166 | |
| 167 | } |