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

   1 /**********************************************************************
   2  * Copyright (c) 2012 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.Iterator;
  15 import java.util.List;
  16
  17 import org.eclipse.core.commands.ExecutionEvent;
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.core.resources.IFolder;
  20 import org.eclipse.core.resources.IProject;
  21 import org.eclipse.core.runtime.CoreException;
  22 import org.eclipse.core.runtime.IProgressMonitor;
  23 import org.eclipse.core.runtime.IStatus;
  24 import org.eclipse.core.runtime.NullProgressMonitor;
  25 import org.eclipse.core.runtime.Status;
  26 import org.eclipse.core.runtime.jobs.Job;
  27 import org.eclipse.jface.viewers.ISelection;
  28 import org.eclipse.jface.viewers.StructuredSelection;
  29 import org.eclipse.jface.window.Window;
  30 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState;
  31 import org.eclipse.linuxtools.internal.lttng2.ui.Activator;
  32 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView;
  33 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IImportDialog;
  34 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.ImportFileInfo;
  35 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.TraceControlDialogFactory;
  36 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  37 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  38 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceFolder;
  39 import org.eclipse.rse.services.clientserver.messages.SystemMessageException;
  40 import org.eclipse.rse.services.files.IFileService;
  41 import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
  42 import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFileSubSystem;
  43 import org.eclipse.ui.IWorkbenchPage;
  44 import org.eclipse.ui.IWorkbenchWindow;
  45 import org.eclipse.ui.PlatformUI;
  46
  47 /**
  48  * <p>
  49  * Command handler implementation to import traces from a (remote) session to a tracing project.
  50  * </p>
  51  *
  52  * @author Bernd Hufmann
  53  */
  54 public class ImportHandler extends BaseControlViewHandler {
  55
  56     // ------------------------------------------------------------------------
  57     // Attributes
  58     // ------------------------------------------------------------------------
  59
  60     /**
  61      * The command parameter
  62      */
  63     protected CommandParameter fParam;
  64
  65     // ------------------------------------------------------------------------
  66     // Accessors
  67     // ------------------------------------------------------------------------
  68
  69     // ------------------------------------------------------------------------
  70     // Operations
  71     // ------------------------------------------------------------------------
  72
  73     /*
  74      * (non-Javadoc)
  75      * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  76      */
  77     @Override
  78     public Object execute(ExecutionEvent event) throws ExecutionException {
  79
  80         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  81
  82         if (window == null) {
  83             return false;
  84         }
  85
  86         fLock.lock();
  87         try {
  88             final CommandParameter param = fParam.clone();
  89
  90             final IImportDialog dialog = TraceControlDialogFactory.getInstance().getImportDialog();
  91             dialog.setSession(param.getSession());
  92
  93             if ((dialog.open() != Window.OK) || param.getSession().isStreamedTrace()) {
  94                 return null;
  95             }
  96
  97             Job job = new Job(Messages.TraceControl_ImportJob) {
  98                 @Override
  99                 protected IStatus run(IProgressMonitor monitor) {
 100                     try {
 101                         List<ImportFileInfo> traces = dialog.getTracePathes();
 102                         IProject project = dialog.getProject();
 103
 104                         for (Iterator<ImportFileInfo> iterator = traces.iterator(); iterator.hasNext();) {
 105                             ImportFileInfo remoteFile = iterator.next();
 106                             downloadTrace(remoteFile, project);
 107                         }
 108
 109                     } catch (ExecutionException e) {
 110                         return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_ImportFailure, e);
 111                     }
 112                     return Status.OK_STATUS;
 113                 }
 114             };
 115             job.setUser(true);
 116             job.schedule();
 117         } finally {
 118             fLock.unlock();
 119         }
 120         return null;
 121     }
 122
 123     /*
 124      * (non-Javadoc)
 125      * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
 126      */
 127     @Override
 128     public boolean isEnabled() {
 129         // Get workbench page for the Control View
 130         IWorkbenchPage page = getWorkbenchPage();
 131         if (page == null) {
 132             return false;
 133         }
 134
 135         // Check if one or more session are selected
 136         ISelection selection = page.getSelection(ControlView.ID);
 137         TraceSessionComponent session = null;
 138         if (selection instanceof StructuredSelection) {
 139             StructuredSelection structered = ((StructuredSelection) selection);
 140             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
 141                 Object element = iterator.next();
 142                 if (element instanceof TraceSessionComponent) {
 143                     // Add only TraceSessionComponents that are inactive and not destroyed
 144                     TraceSessionComponent tmpSession = (TraceSessionComponent) element;
 145                     if ((tmpSession.getSessionState() == TraceSessionState.INACTIVE) && (!tmpSession.isDestroyed())) {
 146                         session = tmpSession;
 147                     }
 148                 }
 149             }
 150         }
 151         boolean isEnabled = session != null;
 152
 153         fLock.lock();
 154         try {
 155             fParam = null;
 156             if (isEnabled) {
 157                 fParam = new CommandParameter(session);
 158             }
 159         } finally {
 160             fLock.unlock();
 161         }
 162         return isEnabled;
 163     }
 164
 165     // ------------------------------------------------------------------------
 166     // Helper methods
 167     // ------------------------------------------------------------------------
 168     /**
 169      * Downloads a trace from the remote host to the given project.
 170      *
 171      * @param trace
 172      *            - trace information of trace to import
 173      * @param project
 174      *            - project to import to
 175      * @throws ExecutionException
 176      */
 177     private static void downloadTrace(ImportFileInfo trace, IProject project)
 178             throws ExecutionException {
 179         try {
 180             IRemoteFileSubSystem fsss = trace.getImportFile().getParentRemoteFileSubSystem();
 181
 182             IFolder traceFolder = project.getFolder(TmfTraceFolder.TRACE_FOLDER_NAME);
 183             if (!traceFolder.exists()) {
 184                 throw new ExecutionException(Messages.TraceControl_ImportDialogInvalidTracingProject + " (" + TmfTraceFolder.TRACE_FOLDER_NAME + ")");  //$NON-NLS-1$//$NON-NLS-2$
 185             }
 186
 187             String traceName = trace.getLocalTraceName();
 188             IFolder folder = traceFolder.getFolder(traceName);
 189             if (folder.exists()) {
 190                 if(!trace.isOverwrite()) {
 191                     throw new ExecutionException(Messages.TraceControl_ImportDialogTraceAlreadyExistError + ": " + traceName); //$NON-NLS-1$
 192                 }
 193             } else {
 194                 folder.create(true, true, null);
 195             }
 196
 197             IRemoteFile[] sources = fsss.list(trace.getImportFile(), IFileService.FILE_TYPE_FILES, new NullProgressMonitor());
 198
 199             String[] destinations = new String[sources.length];
 200             String[] encodings = new String[sources.length];
 201             for (int i = 0; i < sources.length; i++) {
 202                 destinations[i] = folder.getLocation().addTrailingSeparator().append(sources[i].getName()).toString();
 203                 encodings[i] = null;
 204             }
 205
 206             fsss.downloadMultiple(sources, destinations, encodings, new NullProgressMonitor());
 207
 208         } catch (SystemMessageException e) {
 209             throw new ExecutionException(e.toString(), e);
 210         } catch (CoreException e) {
 211             throw new ExecutionException(e.toString(), e);
 212         }
 213     }
 214 }