lttng/org.eclipse.tracecompass.lttng2.control.ui/src/org/eclipse/tracecompass/internal/lttng2/control/ui/views/handlers/LoadHandler.java

   1 /**********************************************************************
   2  * Copyright (c) 2015 École Polytechnique de Montréal, 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  *   Patrick-Jeffrey Pollo Guilbert - Added headers, exporting .lttng profiles
  11  *   William Enright - Added ProfileHandler implementation
  12  *   William Tri-Khiem Truong - Completed documentation
  13  *   Bernd Hufmann - Renamed from ProfileHandler and redesign
  14  **********************************************************************/
  15 package org.eclipse.tracecompass.internal.lttng2.control.ui.views.handlers;
  16
  17 import java.util.ArrayList;
  18 import java.util.List;
  19
  20 import org.eclipse.core.commands.ExecutionEvent;
  21 import org.eclipse.core.commands.ExecutionException;
  22 import org.eclipse.core.filesystem.EFS;
  23 import org.eclipse.core.filesystem.IFileStore;
  24 import org.eclipse.core.runtime.CoreException;
  25 import org.eclipse.core.runtime.IPath;
  26 import org.eclipse.core.runtime.IProgressMonitor;
  27 import org.eclipse.core.runtime.IStatus;
  28 import org.eclipse.core.runtime.Status;
  29 import org.eclipse.core.runtime.SubMonitor;
  30 import org.eclipse.core.runtime.jobs.Job;
  31 import org.eclipse.jface.viewers.ISelection;
  32 import org.eclipse.jface.viewers.StructuredSelection;
  33 import org.eclipse.jface.window.Window;
  34 import org.eclipse.osgi.util.NLS;
  35 import org.eclipse.remote.core.IRemoteConnection;
  36 import org.eclipse.remote.core.IRemoteFileService;
  37 import org.eclipse.remote.core.IRemoteProcessService;
  38 import org.eclipse.remote.core.RemoteServicesUtils;
  39 import org.eclipse.tracecompass.internal.lttng2.control.ui.Activator;
  40 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.ControlView;
  41 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.dialogs.ILoadDialog;
  42 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.dialogs.TraceControlDialogFactory;
  43 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.messages.Messages;
  44 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceSessionGroup;
  45 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.service.ILttngControlService;
  46 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.service.LTTngControlServiceConstants;
  47 import org.eclipse.ui.IWorkbenchPage;
  48
  49 /**
  50  * Command handler implementation to execute load command.
  51  *
  52  * @author Bernd Hufmann
  53  * @author Patrick-Jeffrey Pollo Guilbert
  54  * @author William Enright
  55  * @author William Tri-Khiem Truong
  56  */
  57 public class LoadHandler extends BaseControlViewHandler {
  58
  59     // ------------------------------------------------------------------------
  60     // Attributes
  61     // ------------------------------------------------------------------------
  62
  63     /**
  64      * The trace session group the command is to be executed on.
  65      */
  66     private TraceSessionGroup fSessionGroup = null;
  67
  68     // ------------------------------------------------------------------------
  69     // Operations
  70     // ------------------------------------------------------------------------
  71
  72     @Override
  73     public Object execute(ExecutionEvent event) throws ExecutionException {
  74
  75         final TraceSessionGroup sessionGroup;
  76         final IRemoteConnection connection;
  77
  78         fLock.lock();
  79         try {
  80              sessionGroup = fSessionGroup;
  81              if (sessionGroup == null) {
  82                  return null;
  83              }
  84              connection = sessionGroup.getTargetNode().getRemoteSystemProxy().getRemoteConnection();
  85         } finally {
  86             fLock.unlock();
  87         }
  88
  89         // Open dialog box for the session input path
  90         final ILoadDialog dialog = TraceControlDialogFactory.getInstance().getLoadDialog();
  91         dialog.initialize(connection);
  92         if (dialog.open() != Window.OK) {
  93             return null;
  94         }
  95
  96         Job job = new Job(Messages.TraceControl_LoadJob) {
  97             @Override
  98             protected IStatus run(IProgressMonitor monitor) {
  99                 try {
 100
 101                     SubMonitor subMonitor = SubMonitor.convert(monitor, 3);
 102                     // create destination directory (if necessary)
 103                     IRemoteProcessService processService = connection.getService(IRemoteProcessService.class);
 104                     IPath path = null;
 105                     if (processService != null) {
 106                         String cwd = processService.getWorkingDirectory();
 107                         path = RemoteServicesUtils.posixPath(cwd);
 108                         path = path.append(LTTngControlServiceConstants.DEFAULT_PATH);
 109                     }
 110
 111                     if (path == null) {
 112                         return Status.CANCEL_STATUS;
 113                     }
 114
 115                     ILttngControlService service = sessionGroup.getControlService();
 116                     List<String> commands = new ArrayList<>();
 117                     commands.add("mkdir -p " + path.toString()); //$NON-NLS-1$
 118                     service.runCommands(subMonitor.newChild(1), commands);
 119
 120                     // upload files
 121                     IRemoteFileService fileService = connection.getService(IRemoteFileService.class);
 122                     if (fileService == null) {
 123                         return Status.CANCEL_STATUS;
 124                     }
 125
 126                     List<IFileStore> localFiles = dialog.getLocalResources();
 127                     List<IFileStore> remoteResources;
 128                     if (localFiles != null) {
 129                         remoteResources = new ArrayList<>();
 130                         SubMonitor childMonitor = subMonitor.newChild(1);
 131                         for (IFileStore local : localFiles) {
 132                             IPath remotePath = RemoteServicesUtils.posixPath(path.toString()).append(local.getName());
 133                             IFileStore remoteResource = fileService.getResource(remotePath.toString());
 134                             local.copy(remoteResource, EFS.OVERWRITE, childMonitor);
 135                             remoteResources.add(remoteResource);
 136                         }
 137                     } else {
 138                         subMonitor.newChild(1);
 139                         remoteResources = dialog.getRemoteResources();
 140                     }
 141                     loadRemoteProfile(sessionGroup, subMonitor.newChild(1), remoteResources, dialog.isForce());
 142                 } catch (ExecutionException | CoreException e) {
 143                     return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.TraceControl_LoadFailure, e);
 144                 } catch (InterruptedException e) {
 145                     return Status.CANCEL_STATUS;
 146                 }
 147                 monitor.done();
 148                 return Status.OK_STATUS;
 149             }
 150
 151         };
 152         job.setUser(true);
 153         job.schedule();
 154
 155         return null;
 156     }
 157
 158     @Override
 159     public boolean isEnabled() {
 160
 161         // Get workbench page for the Control View
 162         IWorkbenchPage page = getWorkbenchPage();
 163         if (page == null) {
 164             return false;
 165         }
 166
 167         TraceSessionGroup sessionGroup = null;
 168
 169         // Check if the session group project is selected
 170         ISelection selection = page.getSelection(ControlView.ID);
 171         if (selection instanceof StructuredSelection) {
 172             Object element = ((StructuredSelection) selection).getFirstElement();
 173             sessionGroup = (element instanceof TraceSessionGroup) ? (TraceSessionGroup) element : null;
 174         }
 175
 176         boolean isEnabled = sessionGroup != null;
 177         fLock.lock();
 178         try {
 179             fSessionGroup = null;
 180             if(isEnabled) {
 181                 fSessionGroup = sessionGroup;
 182             }
 183         } finally {
 184             fLock.unlock();
 185         }
 186         return isEnabled;
 187     }
 188
 189     private static void loadRemoteProfile(final TraceSessionGroup sessionGroup, IProgressMonitor monitor, List<IFileStore> files, boolean isForce) throws ExecutionException, InterruptedException  {
 190             SubMonitor subMonitor = SubMonitor.convert(monitor, files.size());
 191             for (IFileStore file : files) {
 192                 // Check if operation was cancelled.
 193                 if (subMonitor.isCanceled()) {
 194                     throw new InterruptedException();
 195                 }
 196                 subMonitor.beginTask(NLS.bind(Messages.TraceControl_LoadTask, file.getName()), 1);
 197                 sessionGroup.loadSession(file.toURI().getPath(), isForce, subMonitor);
 198                 subMonitor.done();
 199             }
 200     }
 201 }