1 package org.simantics.event.view.handler;
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3 import java.util.List;
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5 import org.eclipse.jface.action.Action;
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6 import org.eclipse.jface.resource.ImageDescriptor;
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7 import org.simantics.Simantics;
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8 import org.simantics.db.Resource;
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9 import org.simantics.db.Session;
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10 import org.simantics.db.VirtualGraph;
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11 import org.simantics.db.WriteGraph;
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12 import org.simantics.db.common.request.WriteRequest;
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13 import org.simantics.db.exception.DatabaseException;
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14 import org.simantics.db.service.VirtualGraphSupport;
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15 import org.simantics.utils.datastructures.Callback;
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16 import org.simantics.utils.ui.ErrorLogger;
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19 * @author Tuukka Lehtonen
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21 public class DenyAction extends Action {
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23 private final String virtualGraphId;
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24 private final List<Resource> subjects;
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25 private final String relationURI;
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30 * @param virtualGraphId
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32 * @param tag <code>true</code> to add tag, <code>false</code> to remove tag
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35 public DenyAction(String label, ImageDescriptor image, String virtualGraphId, String relationURI, List<Resource> subjects) {
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36 super(label, image);
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38 this.virtualGraphId = virtualGraphId;
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39 this.subjects = subjects;
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40 this.relationURI = relationURI;
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45 Session session = Simantics.peekSession();
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46 if (session != null) {
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47 VirtualGraph vg = virtualGraphId == null ? null :
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48 session.getService(VirtualGraphSupport.class).getWorkspacePersistent(virtualGraphId);
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49 session.asyncRequest(new WriteRequest(vg) {
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51 public void perform(WriteGraph graph) throws DatabaseException {
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52 Resource relation = graph.getResource(relationURI);
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53 for (Resource subject : subjects)
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54 graph.deny(subject, relation);
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56 }, new Callback<DatabaseException>() {
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58 public void run(DatabaseException parameter) {
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59 if (parameter != null)
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60 ErrorLogger.defaultLogError(parameter);
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