1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.modeling.subscription;
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14 import java.util.Collection;
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15 import java.util.UUID;
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17 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
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18 import org.eclipse.core.runtime.preferences.InstanceScope;
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19 import org.simantics.databoard.Bindings;
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20 import org.simantics.databoard.Databoard;
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21 import org.simantics.databoard.annotations.Optional;
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22 import org.simantics.databoard.binding.Binding;
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23 import org.simantics.databoard.type.Datatype;
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24 import org.simantics.databoard.util.Bean;
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25 import org.simantics.db.Resource;
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26 import org.simantics.db.WriteGraph;
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27 import org.simantics.db.common.request.ObjectsWithType;
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28 import org.simantics.db.common.request.WriteRequest;
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29 import org.simantics.db.common.utils.NameUtils;
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30 import org.simantics.db.exception.DatabaseException;
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31 import org.simantics.db.layer0.util.RemoverUtil;
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32 import org.simantics.db.layer0.variable.RVI;
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33 import org.simantics.layer0.Layer0;
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34 import org.simantics.modeling.ModelingResources;
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35 import org.simantics.modeling.preferences.SubscriptionPreferences;
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38 public class AddSubscription extends WriteRequest {
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41 String subscriptionName;
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42 Collection<Item> items;
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45 public AddSubscription(Resource container, String subscriptionName, Collection<Item> items, boolean overwrite) {
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46 this.container = container;
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47 this.subscriptionName = subscriptionName;
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49 this.overwrite = overwrite;
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53 public void perform(WriteGraph graph) throws DatabaseException {
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54 Layer0 l0 = Layer0.getInstance(graph);
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55 ModelingResources mod = ModelingResources.getInstance(graph);
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57 IEclipsePreferences pn = InstanceScope.INSTANCE.getNode( SubscriptionPreferences.P_NODE );
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58 Double defaultSubscriptionItemInterval = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_INTERVAL, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_INTERVAL);
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59 Double defaultSubscriptionItemDeadband = pn.getDouble(SubscriptionPreferences.P_SUBSCRIPTION_DEADBAND, SubscriptionPreferences.DEFAULT_SUBSCRIPTION_DEADBAND);
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62 for (Resource existing : graph.syncRequest(new ObjectsWithType(container, l0.ConsistsOf, mod.Subscription))) {
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63 String name = graph.getPossibleRelatedValue(existing, l0.HasName, Bindings.STRING);
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64 if (subscriptionName.equals(name)) {
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65 RemoverUtil.remove(graph, existing);
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70 Resource subscription = graph.newResource();
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71 graph.claim(subscription, l0.InstanceOf, null, mod.Subscription);
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72 String freshName = NameUtils.findFreshName(graph, subscriptionName, container);
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73 graph.claimLiteral(subscription, l0.HasName, freshName);
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74 graph.claimLiteral(subscription, l0.HasLabel, freshName);
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75 graph.claim(container, l0.ConsistsOf, subscription);
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77 Binding rviBinding = graph.getService(Databoard.class).getBindingUnchecked( RVI.class );
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78 for (Item item : items) {
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79 Resource subscriptionItem = graph.newResource();
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80 graph.claim(subscriptionItem, l0.InstanceOf, null, mod.Subscription_Item);
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81 graph.claim(subscription, l0.ConsistsOf, subscriptionItem);
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82 graph.claimLiteral(subscriptionItem, l0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
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83 if ( item.label!= null) graph.claimLiteral(subscriptionItem, l0.HasLabel, item.label, Bindings.STRING);
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85 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_VariableId, l0.RVI, item.resolvedName, rviBinding);
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87 Double interval = item.interval!=null ? item.interval : defaultSubscriptionItemInterval;
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88 if (interval != null) {
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89 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_SamplingInterval, interval, Bindings.DOUBLE);
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92 Double deadband = item.deadband!=null ? item.deadband : defaultSubscriptionItemDeadband;
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93 if (deadband != null) {
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94 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Deadband, deadband, Bindings.DOUBLE);
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97 if (item.gain != null) {
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98 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Gain, item.gain, Bindings.DOUBLE);
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101 if (item.bias != null) {
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102 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Deadband, item.bias, Bindings.DOUBLE);
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105 if (item.datatype != null)
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106 graph.claimLiteral(subscriptionItem, mod.Subscription_Item_Datatype,
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107 l0.DataType, item.datatype,
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108 Bindings.getBindingUnchecked(Datatype.class));
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112 public static class Item extends Bean {
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113 public RVI resolvedName;
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114 public @Optional Double interval, deadband, gain, bias;
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115 public @Optional String label;
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116 public @Optional Datatype datatype;
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