org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/ui/views/control/handlers/ImportHandler.java

   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  *   Bernd Hufmann - Updated for support of streamed traces
  12  **********************************************************************/
  13 package org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers;
  14
  15 import java.util.Iterator;
  16 import java.util.List;
  17
  18 import org.eclipse.core.commands.ExecutionEvent;
  19 import org.eclipse.core.commands.ExecutionException;
  20 import org.eclipse.core.resources.IFolder;
  21 import org.eclipse.core.resources.IProject;
  22 import org.eclipse.core.runtime.CoreException;
  23 import org.eclipse.core.runtime.IProgressMonitor;
  24 import org.eclipse.core.runtime.IStatus;
  25 import org.eclipse.core.runtime.NullProgressMonitor;
  26 import org.eclipse.core.runtime.Status;
  27 import org.eclipse.core.runtime.jobs.Job;
  28 import org.eclipse.jface.viewers.ISelection;
  29 import org.eclipse.jface.viewers.StructuredSelection;
  30 import org.eclipse.jface.window.Window;
  31 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState;
  32 import org.eclipse.linuxtools.internal.lttng2.ui.Activator;
  33 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView;
  34 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IImportDialog;
  35 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.ImportFileInfo;
  36 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.TraceControlDialogFactory;
  37 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  38 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  39 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceFolder;
  40 import org.eclipse.rse.services.clientserver.messages.SystemMessageException;
  41 import org.eclipse.rse.services.files.IFileService;
  42 import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
  43 import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFileSubSystem;
  44 import org.eclipse.ui.IWorkbenchPage;
  45 import org.eclipse.ui.IWorkbenchWindow;
  46 import org.eclipse.ui.PlatformUI;
  47
  48 /**
  49  * <p>
  50  * Command handler implementation to import traces from a (remote) session to a tracing project.
  51  * </p>
  52  *
  53  * @author Bernd Hufmann
  54  */
  55 public class ImportHandler extends BaseControlViewHandler {
  56
  57     // ------------------------------------------------------------------------
  58     // Attributes
  59     // ------------------------------------------------------------------------
  60
  61     /**
  62      * The command parameter
  63      */
  64     protected CommandParameter fParam;
  65
  66     // ------------------------------------------------------------------------
  67     // Accessors
  68     // ------------------------------------------------------------------------
  69
  70     // ------------------------------------------------------------------------
  71     // Operations
  72     // ------------------------------------------------------------------------
  73
  74     /*
  75      * (non-Javadoc)
  76      * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  77      */
  78     @Override
  79     public Object execute(ExecutionEvent event) throws ExecutionException {
  80
  81         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  82
  83         if (window == null) {
  84             return false;
  85         }
  86
  87         fLock.lock();
  88         try {
  89             final CommandParameter param = fParam.clone();
  90
  91             final IImportDialog dialog = TraceControlDialogFactory.getInstance().getImportDialog();
  92             dialog.setSession(param.getSession());
  93
  94             if ((dialog.open() != Window.OK) || param.getSession().isStreamedTrace()) {
  95                 return null;
  96             }
  97
  98             Job job = new Job(Messages.TraceControl_ImportJob) {
  99                 @Override
 100                 protected IStatus run(IProgressMonitor monitor) {
 101                     try {
 102                         List<ImportFileInfo> traces = dialog.getTracePathes();
 103                         IProject project = dialog.getProject();
 104
 105                         for (Iterator<ImportFileInfo> iterator = traces.iterator(); iterator.hasNext();) {
 106                             ImportFileInfo remoteFile = iterator.next();
 107                             downloadTrace(remoteFile, project);
 108                         }
 109
 110                     } catch (ExecutionException e) {
 111                         return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_ImportFailure, e);
 112                     }
 113                     return Status.OK_STATUS;
 114                 }
 115             };
 116             job.setUser(true);
 117             job.schedule();
 118         } finally {
 119             fLock.unlock();
 120         }
 121         return null;
 122     }
 123
 124     /*
 125      * (non-Javadoc)
 126      * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
 127      */
 128     @Override
 129     public boolean isEnabled() {
 130         // Get workbench page for the Control View
 131         IWorkbenchPage page = getWorkbenchPage();
 132         if (page == null) {
 133             return false;
 134         }
 135
 136         // Check if one or more session are selected
 137         ISelection selection = page.getSelection(ControlView.ID);
 138         TraceSessionComponent session = null;
 139         if (selection instanceof StructuredSelection) {
 140             StructuredSelection structered = ((StructuredSelection) selection);
 141             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
 142                 Object element = iterator.next();
 143                 if (element instanceof TraceSessionComponent) {
 144                     // Add only TraceSessionComponents that are inactive and not destroyed
 145                     TraceSessionComponent tmpSession = (TraceSessionComponent) element;
 146                     if ((tmpSession.getSessionState() == TraceSessionState.INACTIVE) && (!tmpSession.isDestroyed())) {
 147                         session = tmpSession;
 148                     }
 149                 }
 150             }
 151         }
 152         boolean isEnabled = session != null;
 153
 154         fLock.lock();
 155         try {
 156             fParam = null;
 157             if (isEnabled) {
 158                 fParam = new CommandParameter(session);
 159             }
 160         } finally {
 161             fLock.unlock();
 162         }
 163         return isEnabled;
 164     }
 165
 166     // ------------------------------------------------------------------------
 167     // Helper methods
 168     // ------------------------------------------------------------------------
 169     /**
 170      * Downloads a trace from the remote host to the given project.
 171      *
 172      * @param trace
 173      *            - trace information of trace to import
 174      * @param project
 175      *            - project to import to
 176      * @throws ExecutionException
 177      */
 178     private static void downloadTrace(ImportFileInfo trace, IProject project)
 179             throws ExecutionException {
 180         try {
 181             IRemoteFileSubSystem fsss = trace.getImportFile().getParentRemoteFileSubSystem();
 182
 183             IFolder traceFolder = project.getFolder(TmfTraceFolder.TRACE_FOLDER_NAME);
 184             if (!traceFolder.exists()) {
 185                 throw new ExecutionException(Messages.TraceControl_ImportDialogInvalidTracingProject + " (" + TmfTraceFolder.TRACE_FOLDER_NAME + ")");  //$NON-NLS-1$//$NON-NLS-2$
 186             }
 187
 188             String traceName = trace.getLocalTraceName();
 189             IFolder folder = traceFolder.getFolder(traceName);
 190             if (folder.exists()) {
 191                 if(!trace.isOverwrite()) {
 192                     throw new ExecutionException(Messages.TraceControl_ImportDialogTraceAlreadyExistError + ": " + traceName); //$NON-NLS-1$
 193                 }
 194             } else {
 195                 folder.create(true, true, null);
 196             }
 197
 198             IRemoteFile[] sources = fsss.list(trace.getImportFile(), IFileService.FILE_TYPE_FILES, new NullProgressMonitor());
 199
 200             String[] destinations = new String[sources.length];
 201             String[] encodings = new String[sources.length];
 202             for (int i = 0; i < sources.length; i++) {
 203                 destinations[i] = folder.getLocation().addTrailingSeparator().append(sources[i].getName()).toString();
 204                 encodings[i] = null;
 205             }
 206
 207             fsss.downloadMultiple(sources, destinations, encodings, new NullProgressMonitor());
 208
 209         } catch (SystemMessageException e) {
 210             throw new ExecutionException(e.toString(), e);
 211         } catch (CoreException e) {
 212             throw new ExecutionException(e.toString(), e);
 213         }
 214     }
 215 }