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

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