bundles/org.simantics.event/src/org/simantics/event/view/handler/GetEventLogsQuery.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.event.view.handler;\r
  13 \r
  14 import java.util.ArrayList;\r
  15 import java.util.Collection;\r
  16 import java.util.List;\r
  17 \r
  18 import org.simantics.db.ReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.common.request.UniqueRead;\r
  21 import org.simantics.db.exception.DatabaseException;\r
  22 import org.simantics.event.ontology.EventResource;\r
  23 import org.simantics.layer0.Layer0;\r
  24 \r
  25 /**\r
  26  * Given a list of events, return respective eventlogs.\r
  27  */\r
  28 public class GetEventLogsQuery extends UniqueRead<Collection<Resource>> {\r
  29 \r
  30         Collection<Resource> events;\r
  31         \r
  32         public GetEventLogsQuery(Collection<Resource> events) {\r
  33                 this.events = events;\r
  34         }\r
  35 \r
  36         @Override\r
  37         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
  38                 Layer0 L0 = Layer0.getInstance(graph);\r
  39                 EventResource EVENT = EventResource.getInstance(graph);\r
  40                 List<Resource> eventlogs = new ArrayList<Resource>(1);\r
  41                 for (Resource event : events) {\r
  42                         Resource eventslice = graph.getPossibleObject(event, L0.PartOf);\r
  43                         if (eventslice==null || !graph.isInstanceOf(eventslice, EVENT.EventSlice)) continue;\r
  44                         Resource eventlog = graph.getPossibleObject(eventslice, L0.PartOf);\r
  45                         if (eventlog==null || !graph.isInstanceOf(eventlog, EVENT.EventLog)) continue;\r
  46                         if (!eventlogs.contains( event )) {\r
  47                                 eventlogs.add( eventlog );\r
  48                         }\r
  49                 }\r
  50                 return eventlogs;\r
  51         }\r
  52         \r
  53 \r
  54 }\r