bundles/org.simantics.charts/src/org/simantics/charts/query/MilestoneSpecQuery.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.charts.query;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.common.request.ResourceRead;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.event.ontology.EventResource;
  19 import org.simantics.event.view.handler.MilestoneList;
  20 import org.simantics.event.view.handler.MilestoneListQuery;
  21 import org.simantics.layer0.Layer0;
  22 import org.simantics.trend.impl.Milestone;
  23 import org.simantics.trend.impl.MilestoneSpec;
  24
  25 public class MilestoneSpecQuery extends ResourceRead<MilestoneSpec> {
  26
  27         public MilestoneSpecQuery(Resource eventlog) {
  28                 super(eventlog);
  29         }
  30
  31     @Override
  32     public MilestoneSpec perform(ReadGraph graph) throws DatabaseException {
  33         MilestoneSpec result = new MilestoneSpec();
  34         result.init();
  35         result.baseline = -1;
  36         Layer0 L0 = Layer0.getInstance(graph);
  37         EventResource EVENT = EventResource.getInstance(graph);
  38
  39         Resource experiment = resource;
  40         Resource eventLog = graph.getPossibleObject(experiment, EVENT.IsEventProducerOf);
  41         if (eventLog != null) {
  42                 MilestoneList ml = graph.sync( new MilestoneListQuery(eventLog) );
  43                 for (Resource event : ml.milestones)
  44                 {
  45                         boolean isMilestone = graph.hasStatement(event, EVENT.Milestone);
  46                         boolean isHidden = graph.hasStatement(event, EVENT.Hidden);
  47                         boolean isBaseline = event.equals(ml.baseline);
  48                         if (!isMilestone && !isBaseline) continue;
  49
  50                         Double creationTime = graph.getPossibleRelatedValue(event, EVENT.HasTimestamp);
  51                         String milestoneLabel = graph.getPossibleRelatedValue(event, EVENT.Event_milestoneLabel);
  52                         String label = graph.getPossibleRelatedValue(event, L0.HasLabel);
  53
  54                         Milestone ms = new Milestone();
  55                         ms.label = milestoneLabel==null ? "" : milestoneLabel;
  56                         ms.description = label==null ? "" : label;
  57                         ms.id = graph.getRelatedValue(event, L0.HasName);
  58                         ms.time = creationTime==null ? 0.0 : creationTime;
  59                         ms.hidden = isHidden;
  60                         if (isBaseline) result.baseline = result.milestones.size();
  61                         result.milestones.add( ms );
  62                 }
  63         }
  64
  65         return result;
  66     }
  67
  68         public Resource getEventLog() {
  69                 return resource;
  70         }
  71
  72
  73 }