1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.issues.ui.handler;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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16 import java.util.Collections;
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17 import java.util.List;
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18 import java.util.Map;
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20 import org.eclipse.core.commands.AbstractHandler;
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21 import org.eclipse.core.commands.ExecutionEvent;
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22 import org.eclipse.core.commands.ExecutionException;
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23 import org.eclipse.jface.viewers.ISelection;
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24 import org.eclipse.jface.viewers.ISelectionProvider;
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25 import org.eclipse.ui.IWorkbenchSite;
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26 import org.eclipse.ui.commands.IElementUpdater;
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27 import org.eclipse.ui.handlers.HandlerUtil;
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28 import org.eclipse.ui.menus.UIElement;
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29 import org.simantics.Simantics;
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30 import org.simantics.db.ReadGraph;
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31 import org.simantics.db.Resource;
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32 import org.simantics.db.Session;
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33 import org.simantics.db.WriteGraph;
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34 import org.simantics.db.common.utils.TagUtil;
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35 import org.simantics.db.exception.DatabaseException;
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36 import org.simantics.db.layer0.SelectionHints;
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37 import org.simantics.db.layer0.adapter.ActionFactory;
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38 import org.simantics.db.layer0.adapter.ActionFactory2;
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39 import org.simantics.db.layer0.variable.Variable;
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40 import org.simantics.db.request.Read;
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41 import org.simantics.issues.ontology.IssueResource;
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42 import org.simantics.utils.datastructures.SelectionUtils;
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43 import org.simantics.utils.ui.ErrorLogger;
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44 import org.simantics.utils.ui.ISelectionUtils;
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47 * @author Tuukka Lehtonen
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49 class PreferenceHandler extends AbstractHandler implements IElementUpdater, ActionFactory, ActionFactory2 {
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51 protected final String virtualGraphId;
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52 private final String tagURI;
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53 private final boolean tag;
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55 public PreferenceHandler() {
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56 this("preferences", null, false);
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59 public PreferenceHandler(String tagURI, boolean tag) {
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60 this("preferences", tagURI, tag);
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63 public PreferenceHandler(String virtualGraphId) {
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64 this(virtualGraphId, null, false);
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67 public PreferenceHandler(String virtualGraphId, String tagURI, boolean tag) {
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68 this.virtualGraphId = virtualGraphId;
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69 this.tagURI = tagURI;
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73 public ArrayList<Resource> filteredSelection(ReadGraph graph, List<Resource> resources, List<Variable> vars) throws DatabaseException {
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74 IssueResource ISSUE = IssueResource.getInstance(graph);
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75 ArrayList<Resource> sel = new ArrayList<Resource>();
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76 for (Variable v : vars) {
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77 //System.out.println("var: " + v.getURI(graph));
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78 Resource r = v.getPossibleRepresents(graph);
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79 if (r != null && graph.isInstanceOf(r, ISSUE.Issue))
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82 for (Resource r : resources)
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83 if (graph.isInstanceOf(r, ISSUE.Issue))
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89 public Object execute(ExecutionEvent event) throws ExecutionException {
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90 IWorkbenchSite site = HandlerUtil.getActiveSite(event);
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91 ISelectionProvider sp = site.getSelectionProvider();
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92 ISelection selection = sp.getSelection();
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93 final List<Variable> vars = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Variable.class);
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94 final List<Resource> resources = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Resource.class);
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95 execute(vars, resources);
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99 public void execute(final List<Variable> vars, List<Resource> resources) {
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100 Session session = Simantics.peekSession();
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101 if (session == null)
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103 new TagUtil(virtualGraphId, tagURI, tag) {
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105 protected void processSelection(WriteGraph graph, List<Resource> resources) throws DatabaseException {
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106 graph.markUndoPoint();
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107 ArrayList<Resource> sel = filteredSelection(graph, resources, vars);
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108 if (!process(graph))
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110 super.processSelection(graph, sel);
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112 }.execute(session, resources);
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116 * @return <code>false</code> to perform no further actions after this
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117 * method completes.
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119 protected boolean process(WriteGraph graph) throws DatabaseException {
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123 @SuppressWarnings("rawtypes")
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125 public void updateElement(UIElement element, Map parameters) {
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126 Session session = Simantics.peekSession();
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127 if (session == null)
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130 boolean checked = session.syncRequest(new Read<Boolean>() {
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132 public Boolean perform(ReadGraph graph) throws DatabaseException {
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133 return isChecked(graph);
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136 element.setChecked(checked);
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137 } catch (DatabaseException e) {
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138 ErrorLogger.defaultLogError(e);
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142 protected boolean isChecked(ReadGraph graph) throws DatabaseException {
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147 public Runnable create(Object target) {
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149 if(!(target instanceof Variable))
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152 final Variable issue = (Variable)target;
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154 return new Runnable() {
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157 public void run() {
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158 execute(Collections.singletonList(issue), Collections.<Resource>emptyList());
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166 public Runnable create(Collection<?> targets) {
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167 final List<Variable> issues = new ArrayList<Variable>(ISelectionUtils.filterSetSelection(targets, Variable.class));
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168 if (issues.isEmpty())
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170 return new Runnable() {
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172 public void run() {
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173 execute(issues, Collections.<Resource>emptyList());
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