bundles/org.simantics.modeling/src/org/simantics/modeling/subscription/NewSubscriptionItem.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.modeling.subscription;
  13
  14 import java.util.UUID;
  15
  16 import org.simantics.databoard.Bindings;
  17 import org.simantics.databoard.Databoard;
  18 import org.simantics.databoard.binding.Binding;
  19 import org.simantics.databoard.type.Datatype;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.WriteGraph;
  22 import org.simantics.db.common.CommentMetadata;
  23 import org.simantics.db.common.request.WriteRequest;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.db.layer0.variable.RVI;
  26 import org.simantics.layer0.Layer0;
  27 import org.simantics.modeling.ModelingResources;
  28
  29 /**
  30  * Request to create new subscription item
  31  *
  32  * @author toni.kalajainen
  33  */
  34 public class NewSubscriptionItem extends WriteRequest {
  35
  36         Resource subscription;
  37         Double interval, deadband, gain, bias;
  38         String unit, label;
  39         RVI variableId;
  40         Datatype datatype;
  41         public Resource subscriptionItem;
  42
  43         public NewSubscriptionItem(Resource subscription, Double interval,
  44                         Double deadband, Double gain, Double bias, String unit,
  45                         String label, RVI variableId, Datatype datatype) {
  46                 super();
  47                 this.subscription = subscription;
  48                 this.interval = interval;
  49                 this.deadband = deadband;
  50                 this.gain = gain;
  51                 this.bias = bias;
  52                 this.unit = unit;
  53                 this.label = label;
  54                 this.variableId = variableId;
  55                 this.datatype = datatype;
  56         }
  57
  58         @Override
  59         public void perform(WriteGraph graph) throws DatabaseException
  60         {
  61                 ModelingResources mr = ModelingResources.getInstance(graph);
  62                 Layer0 l0 = Layer0.getInstance(graph);
  63         subscriptionItem = graph.newResource();
  64         graph.claim(subscriptionItem, l0.InstanceOf, null, mr.Subscription_Item);
  65         graph.claim(subscription, l0.ConsistsOf, subscriptionItem);
  66         graph.claimLiteral(subscriptionItem, l0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
  67         graph.claimLiteral(subscriptionItem, l0.HasLabel, label, Bindings.STRING);
  68
  69         if (datatype != null)
  70             graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Datatype,
  71                     l0.DataType, datatype,
  72                     Bindings.getBindingUnchecked(Datatype.class));
  73
  74         if (interval!=null) graph.claimLiteral(subscriptionItem, mr.Subscription_Item_SamplingInterval, interval, Bindings.DOUBLE);
  75         if (deadband!=null) graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Deadband, deadband, Bindings.DOUBLE);
  76         if (unit!=null) graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Unit, unit, Bindings.STRING);
  77         if (gain!=null) graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Gain, gain, Bindings.DOUBLE);
  78         if (bias!=null) graph.claimLiteral(subscriptionItem, mr.Subscription_Item_Bias, bias, Bindings.DOUBLE);
  79
  80         Binding rviBinding = graph.getService(Databoard.class).getBindingUnchecked( RVI.class );
  81         graph.claimLiteral(subscriptionItem, mr.Subscription_Item_VariableId, l0.RVI, variableId, rviBinding);
  82
  83         CommentMetadata cm = graph.getMetadata(CommentMetadata.class);
  84         graph.addMetadata(cm.add("Added new subscription " + label + " " + subscriptionItem + " "));
  85         }
  86
  87 }