bundles/org.simantics.modeling.template2d.ui/src/org/simantics/modeling/template2d/ui/wizard/DrawingTemplateExportWizard.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.template2d.ui.wizard;
  13
  14 import java.io.File;
  15 import java.io.IOException;
  16 import java.lang.reflect.InvocationTargetException;
  17 import java.util.Deque;
  18
  19 import org.eclipse.core.runtime.preferences.InstanceScope;
  20 import org.eclipse.jface.dialogs.MessageDialog;
  21 import org.eclipse.jface.preference.IPersistentPreferenceStore;
  22 import org.eclipse.jface.preference.IPreferenceStore;
  23 import org.eclipse.jface.viewers.IStructuredSelection;
  24 import org.eclipse.jface.wizard.Wizard;
  25 import org.eclipse.jface.wizard.WizardPage;
  26 import org.eclipse.ui.IExportWizard;
  27 import org.eclipse.ui.IWorkbench;
  28 import org.eclipse.ui.preferences.ScopedPreferenceStore;
  29 import org.simantics.Simantics;
  30 import org.simantics.db.management.ISessionContext;
  31 import org.simantics.modeling.template2d.ui.Activator;
  32 import org.simantics.modeling.ui.utils.NoProjectPage;
  33 import org.simantics.project.IProject;
  34 import org.simantics.project.ProjectKeys;
  35 import org.simantics.utils.ui.ErrorLogger;
  36 import org.simantics.utils.ui.ExceptionUtils;
  37
  38 /**
  39  * @author Tuukka Lehtonen
  40  * @author Teemu Mätäsniemi
  41  */
  42 public class DrawingTemplateExportWizard extends Wizard implements IExportWizard {
  43
  44     private static final int MAX_RECENT_EXPORT_PATHS = 10;
  45
  46     Deque<String>            recentExportPaths;
  47     boolean                  overwrite;
  48
  49     ExportPlan        exportModel;
  50
  51     private boolean readPreferences() {
  52         IPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, Activator.PLUGIN_ID);
  53
  54         String recentPathsPref = store.getString(Preferences.RECENT_DRAWING_TEMPLATE_EXPORT_LOCATIONS);
  55         recentExportPaths = Preferences.decodePaths(recentPathsPref);
  56         overwrite = store.getBoolean(Preferences.DRAWING_TEMPLATE_EXPORT_OVERWRITE);
  57
  58         return true;
  59     }
  60
  61     private void writePreferences() throws IOException {
  62         IPersistentPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, Activator.PLUGIN_ID);
  63
  64         store.putValue(Preferences.RECENT_DRAWING_TEMPLATE_EXPORT_LOCATIONS, Preferences.encodePaths(recentExportPaths));
  65         store.setValue(Preferences.DRAWING_TEMPLATE_EXPORT_OVERWRITE, exportModel.overwrite);
  66
  67         if (store.needsSaving())
  68             store.save();
  69     }
  70
  71     public DrawingTemplateExportWizard() {
  72         setWindowTitle("Export Diagram Template");
  73         setNeedsProgressMonitor(true);
  74     }
  75
  76     @Override
  77     public void init(IWorkbench workbench, IStructuredSelection selection) {
  78         readPreferences();
  79
  80         ISessionContext ctx = Simantics.getSessionContext();
  81         if (ctx == null)
  82             return;
  83         IProject project = ctx.getHint(ProjectKeys.KEY_PROJECT);
  84         if (project == null)
  85             return;
  86
  87         exportModel = new ExportPlan(ctx, recentExportPaths);
  88         exportModel.project = project;
  89         exportModel.selection = selection;
  90         exportModel.overwrite = overwrite;
  91     }
  92
  93     @Override
  94     public void addPages() {
  95         super.addPages();
  96         if (exportModel != null) {
  97             addPage(new DrawingTemplateExportPage(exportModel));
  98         } else {
  99             addPage(new NoProjectPage("Export Diagram Template"));
 100         }
 101     }
 102
 103     @Override
 104     public boolean performFinish() {
 105         try {
 106             recentExportPaths.addFirst(exportModel.exportLocation.getAbsolutePath());
 107             Preferences.removeDuplicates(recentExportPaths);
 108             if (recentExportPaths.size() > MAX_RECENT_EXPORT_PATHS)
 109                 recentExportPaths.pollLast();
 110
 111             writePreferences();
 112         } catch (IOException e) {
 113             ErrorLogger.defaultLogError("Failed to write preferences", e);
 114         }
 115
 116         final File output = exportModel.exportLocation;
 117         if (output.exists()) {
 118             if (!exportModel.overwrite) {
 119                 boolean ok = MessageDialog.openConfirm(getShell(), "Overwrite", "A file by the name " + output.getAbsolutePath() + " already exists.\n\nDo you want to overwrite?");
 120                 if (!ok) {
 121                     return false;
 122                 }
 123             }
 124             if (!output.delete()) {
 125                 MessageDialog.openError(getShell(), "Delete Problem", "Could not overwrite previously existing file " + output);
 126                 return false;
 127             }
 128         }
 129
 130         try {
 131             getContainer().run(true, true, new DrawingTemplateExporter(exportModel));
 132         } catch (InvocationTargetException e) {
 133             Throwable t = e.getTargetException();
 134             WizardPage cp = (WizardPage) getContainer().getCurrentPage();
 135             if (t instanceof IOException) {
 136                 ErrorLogger.defaultLogError("An I/O problem occurred while exporting diagram template. See exception for details.", t);
 137                 cp.setErrorMessage("An I/O problem occurred while exporting diagram template.\n\nMessage: " + e.getMessage());
 138             } else {
 139                 ErrorLogger.defaultLogError("Unexpected exception while exporting diagram template. See exception for details.", t);
 140                 cp.setErrorMessage("Unexpected exception while exporting diagram template. See error log for details.\n\nMessage: " + e.getMessage());
 141             }
 142             return false;
 143         } catch (InterruptedException e) {
 144             ExceptionUtils.logAndShowError(e);
 145             return false;
 146         }
 147
 148         return true;
 149     }
 150
 151 }