1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 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.ui.contribution;
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14 import java.lang.ref.WeakReference;
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15 import java.util.ArrayList;
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16 import java.util.Collection;
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18 import org.eclipse.jface.action.Action;
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19 import org.eclipse.jface.action.IAction;
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20 import org.eclipse.jface.resource.ImageDescriptor;
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21 import org.simantics.db.ReadGraph;
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22 import org.simantics.db.Resource;
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23 import org.simantics.db.Session;
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24 import org.simantics.db.exception.DatabaseException;
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25 import org.simantics.db.request.Read;
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26 import org.simantics.layer0.utils.collections.IContextualList;
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27 import org.simantics.layer0.utils.operations.IOperation;
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28 import org.simantics.project.IProject;
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29 import org.simantics.ui.SimanticsUI;
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30 import org.simantics.ui.icons.ImageUtil;
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31 import org.simantics.ui.utils.ResourceAdaptionUtils;
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32 import org.simantics.utils.datastructures.persistent.ContextMap;
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35 public abstract class OperationsMenuContribution extends DynamicMenuContribution {
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37 protected abstract Resource getListResource(ReadGraph g) throws Exception;
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39 protected void assignParameters(ContextMap parameters) {
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43 protected boolean preAcceptSelection(Object[] selection) {
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44 if(selection == null || selection.length != 1)
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46 Resource r = ResourceAdaptionUtils.adaptToResource(selection[0]);
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51 protected IAction[] getActions(ReadGraph g, Object[] selection) {
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52 if(selection.length == 1) {
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53 final Resource r = ResourceAdaptionUtils.adaptToResource(selection[0]);
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57 return g.syncRequest(new Read<IAction[]>() {
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60 public IAction[] perform(ReadGraph g) throws DatabaseException {
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61 IContextualList list;
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63 list = g.adapt(getListResource(g), IContextualList.class);
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64 } catch (Exception e) {
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65 e.printStackTrace();
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68 final ContextMap parameters = new ContextMap();
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69 parameters.put(IOperation.SUBJECT, r);
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70 IProject project = SimanticsUI.peekProject();
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71 if (project != null)
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72 parameters.put(IOperation.PROJECT, project.get());
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73 assignParameters(parameters);
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74 Collection<Resource> operations = new ArrayList<Resource>();
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75 list.fill(g, parameters, operations);
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77 if(!operations.isEmpty()) {
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78 IAction[] actions = new IAction[operations.size()];
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80 for(Resource opRes : operations) {
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81 final IOperation op = g.adapt(opRes, IOperation.class);
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82 final ImageDescriptor imgDesc = ImageUtil.adaptImageDescriptor(g, opRes);
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83 final WeakReference<Session> sessionRef = new WeakReference<Session>(g.getSession());
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84 actions[i++] = new Action(op.getName(), imgDesc) {
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88 Session session = sessionRef.get();
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89 if (session != null)
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90 op.exec(session, parameters);
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102 } catch (DatabaseException e) {
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103 e.printStackTrace();
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