bundles/org.simantics.charts/src/org/simantics/charts/ui/AddSubscriptionItems.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in 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.ui;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.List;
  17 import java.util.UUID;
  18
  19 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
  20 import org.eclipse.core.runtime.preferences.InstanceScope;
  21 import org.simantics.databoard.Bindings;
  22 import org.simantics.databoard.Databoard;
  23 import org.simantics.databoard.binding.Binding;
  24 import org.simantics.databoard.type.Datatype;
  25 import org.simantics.db.Resource;
  26 import org.simantics.db.WriteGraph;
  27 import org.simantics.db.common.CommentMetadata;
  28 import org.simantics.db.common.request.WriteRequest;
  29 import org.simantics.db.exception.DatabaseException;
  30 import org.simantics.db.layer0.variable.RVI;
  31 import org.simantics.db.layer0.variable.VariableReference;
  32 import org.simantics.layer0.Layer0;
  33 import org.simantics.modeling.ModelingResources;
  34 import org.simantics.modeling.preferences.SubscriptionPreferences;
  35
  36 /**
  37  * @author Tuukka Lehtonen
  38  */
  39 public class AddSubscriptionItems extends WriteRequest {
  40
  41     Resource                      subscription;
  42     Collection<VariableReference> references;
  43     public List<Resource>         result;
  44
  45     private AddSubscriptionItems(Resource subscription, Collection<VariableReference> references) {
  46         this.subscription = subscription;
  47         this.references = references;
  48     }
  49
  50     @Override
  51     public void perform(WriteGraph graph) throws DatabaseException {
  52         Layer0 l0 = Layer0.getInstance(graph);
  53         ModelingResources mr = ModelingResources.getInstance(graph);
  54         result = new ArrayList<Resource>(references.size());
  55
  56         for (VariableReference ref : references) {
  57             if (ref.getVariableId() == null)
  58                 continue;
  59
  60             Resource subscriptionItem = graph.newResource();
  61             graph.claim(subscriptionItem, l0.InstanceOf, null, mr.Subscription_Item);
  62             graph.claim(subscription, l0.ConsistsOf, subscriptionItem);
  63             graph.claimLiteral(subscriptionItem, l0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
  64             if (ref.getLabel() != null)
  65                 graph.claimLiteral(subscriptionItem, l0.HasLabel, ref.getLabel(), Bindings.STRING);
  66                 Binding rviBinding = graph.getService(Databoard.class).getBindingUnchecked( RVI.class );
  67             graph.claimLiteral(subscriptionItem, mr.Subscription_Item_VariableId, l0.RVI, ref.getVariableId(), rviBinding);
  68
  69             if (ref.getDatatype() != null)
  70                 graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Datatype,
  71                         l0.DataType, ref.getDatatype(),
  72                         Bindings.getBindingUnchecked(Datatype.class));
  73
  74             IEclipsePreferences pn = InstanceScope.INSTANCE.getNode( SubscriptionPreferences.P_NODE );
  75
  76             // Interval
  77             {
  78                 Double si = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_INTERVAL, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_INTERVAL);
  79                 if ( si != null ) {
  80                         graph.claimLiteral(subscriptionItem, mr.Subscription_Item_SamplingInterval, si, Bindings.DOUBLE);
  81                 }
  82             }
  83
  84             // Deadband
  85             {
  86                 Double db = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_DEADBAND, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_DEADBAND);
  87                 if ( db != null ) {
  88                         graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Deadband, db, Bindings.DOUBLE);
  89                 }
  90             }
  91
  92             CommentMetadata cm = graph.getMetadata(CommentMetadata.class);
  93             graph.addMetadata(cm.add("Created subscription item " + subscriptionItem + " [" + ref.getVariableId().toString(graph) + "]"));
  94
  95             result.add( subscriptionItem );
  96         }
  97     }
  98
  99 }