bundles/org.simantics.modeling/src/org/simantics/modeling/subscription/AddSubscription.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.modeling.subscription;\r
  13 \r
  14 import java.util.Collection;\r
  15 import java.util.UUID;\r
  16 \r
  17 import org.eclipse.core.runtime.preferences.IEclipsePreferences;\r
  18 import org.eclipse.core.runtime.preferences.InstanceScope;\r
  19 import org.simantics.databoard.Bindings;\r
  20 import org.simantics.databoard.Databoard;\r
  21 import org.simantics.databoard.annotations.Optional;\r
  22 import org.simantics.databoard.binding.Binding;\r
  23 import org.simantics.databoard.type.Datatype;\r
  24 import org.simantics.databoard.util.Bean;\r
  25 import org.simantics.db.Resource;\r
  26 import org.simantics.db.WriteGraph;\r
  27 import org.simantics.db.common.request.ObjectsWithType;\r
  28 import org.simantics.db.common.request.WriteRequest;\r
  29 import org.simantics.db.common.utils.NameUtils;\r
  30 import org.simantics.db.exception.DatabaseException;\r
  31 import org.simantics.db.layer0.util.RemoverUtil;\r
  32 import org.simantics.db.layer0.variable.RVI;\r
  33 import org.simantics.layer0.Layer0;\r
  34 import org.simantics.modeling.ModelingResources;\r
  35 import org.simantics.modeling.preferences.SubscriptionPreferences;\r
  36 \r
  37 \r
  38 public class AddSubscription extends WriteRequest {\r
  39 \r
  40     Resource         container;\r
  41     String           subscriptionName;\r
  42     Collection<Item> items;\r
  43     boolean          overwrite;\r
  44 \r
  45     public AddSubscription(Resource container, String subscriptionName, Collection<Item> items, boolean overwrite) {\r
  46         this.container = container;\r
  47         this.subscriptionName = subscriptionName; \r
  48         this.items = items;\r
  49         this.overwrite = overwrite;\r
  50     }\r
  51 \r
  52     @Override\r
  53     public void perform(WriteGraph graph) throws DatabaseException {\r
  54         Layer0 l0 = Layer0.getInstance(graph);\r
  55         ModelingResources mod = ModelingResources.getInstance(graph);\r
  56 \r
  57         IEclipsePreferences pn = InstanceScope.INSTANCE.getNode( SubscriptionPreferences.P_NODE );\r
  58         Double defaultSubscriptionItemInterval = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_INTERVAL, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_INTERVAL);\r
  59         Double defaultSubscriptionItemDeadband = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_DEADBAND, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_DEADBAND); \r
  60 \r
  61         if (overwrite) {\r
  62             for (Resource existing : graph.syncRequest(new ObjectsWithType(container, l0.ConsistsOf, mod.Subscription))) {\r
  63                 String name = graph.getPossibleRelatedValue(existing, l0.HasName, Bindings.STRING);\r
  64                 if (subscriptionName.equals(name)) {\r
  65                     RemoverUtil.remove(graph, existing);\r
  66                 }\r
  67             }\r
  68         }\r
  69 \r
  70         Resource subscription = graph.newResource();\r
  71         graph.claim(subscription, l0.InstanceOf, null, mod.Subscription);\r
  72         String freshName = NameUtils.findFreshName(graph, subscriptionName, container);\r
  73         graph.claimLiteral(subscription, l0.HasName, freshName);\r
  74         graph.claimLiteral(subscription, l0.HasLabel, freshName);\r
  75         graph.claim(container, l0.ConsistsOf, subscription);\r
  76 \r
  77         Binding rviBinding = graph.getService(Databoard.class).getBindingUnchecked( RVI.class );\r
  78         for (Item item : items) {\r
  79             Resource subscriptionItem = graph.newResource();\r
  80             graph.claim(subscriptionItem, l0.InstanceOf, null, mod.Subscription_Item);\r
  81             graph.claim(subscription, l0.ConsistsOf, subscriptionItem);\r
  82             graph.claimLiteral(subscriptionItem, l0.HasName, UUID.randomUUID().toString(), Bindings.STRING);\r
  83             if ( item.label!= null) graph.claimLiteral(subscriptionItem, l0.HasLabel, item.label, Bindings.STRING);\r
  84             \r
  85             graph.claimLiteral(subscriptionItem, mod.Subscription_Item_VariableId, l0.RVI, item.resolvedName, rviBinding);\r
  86 \r
  87             Double interval = item.interval!=null ? item.interval : defaultSubscriptionItemInterval;\r
  88             if (interval != null) {\r
  89                 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_SamplingInterval, interval, Bindings.DOUBLE);\r
  90             }\r
  91             \r
  92             Double deadband = item.deadband!=null ? item.deadband : defaultSubscriptionItemDeadband;\r
  93             if (deadband != null) {\r
  94                 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Deadband, deadband, Bindings.DOUBLE);\r
  95             }\r
  96 \r
  97             if (item.gain != null) {\r
  98                 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Gain, item.gain, Bindings.DOUBLE);\r
  99             }\r
 100             \r
 101             if (item.bias != null) {\r
 102                 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Deadband, item.bias, Bindings.DOUBLE);\r
 103             }                \r
 104             \r
 105             if (item.datatype != null)\r
 106                 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Datatype,\r
 107                         l0.DataType, item.datatype,\r
 108                         Bindings.getBindingUnchecked(Datatype.class));\r
 109         }\r
 110     }\r
 111 \r
 112     public static class Item extends Bean {\r
 113         public RVI resolvedName;\r
 114         public @Optional Double interval, deadband, gain, bias;\r
 115         public @Optional String label;\r
 116         public @Optional Datatype datatype;\r
 117     }\r
 118 \r
 119 }\r