1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
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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.event.view.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.List;
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18 import org.simantics.db.ReadGraph;
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19 import org.simantics.db.Resource;
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20 import org.simantics.db.common.request.UniqueRead;
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21 import org.simantics.db.exception.DatabaseException;
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22 import org.simantics.event.ontology.EventResource;
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23 import org.simantics.layer0.Layer0;
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26 * Given a list of events, return respective eventlogs.
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28 public class GetEventLogsQuery extends UniqueRead<Collection<Resource>> {
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30 Collection<Resource> events;
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32 public GetEventLogsQuery(Collection<Resource> events) {
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33 this.events = events;
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37 public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
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38 Layer0 L0 = Layer0.getInstance(graph);
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39 EventResource EVENT = EventResource.getInstance(graph);
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40 List<Resource> eventlogs = new ArrayList<Resource>(1);
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41 for (Resource event : events) {
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42 Resource eventslice = graph.getPossibleObject(event, L0.PartOf);
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43 if (eventslice==null || !graph.isInstanceOf(eventslice, EVENT.EventSlice)) continue;
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44 Resource eventlog = graph.getPossibleObject(eventslice, L0.PartOf);
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45 if (eventlog==null || !graph.isInstanceOf(eventlog, EVENT.EventLog)) continue;
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46 if (!eventlogs.contains( event )) {
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47 eventlogs.add( eventlog );
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