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