bundles/org.simantics.charts/src/org/simantics/charts/query/ChartAndSubscriptionItemReadQuery.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.charts.query;
  13
  14 import java.util.Arrays;
  15
  16 import org.simantics.charts.ontology.ChartResource;
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.databoard.Databoard;
  19 import org.simantics.databoard.binding.Binding;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.Resource;
  22 import org.simantics.db.common.request.ResourceRead;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.db.layer0.request.PossibleModel;
  25 import org.simantics.db.layer0.variable.RVI;
  26 import org.simantics.db.layer0.variable.Variable;
  27 import org.simantics.db.layer0.variable.Variables;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.modeling.ModelingResources;
  30 import org.simantics.modeling.subscription.SubscriptionsQuery;
  31 import org.simantics.modeling.subscription.SubscriptionsQuery.SubscriptionsResult;
  32 import org.simantics.trend.configuration.TrendItem;
  33 import org.simantics.trend.configuration.TrendItem.Renderer;
  34
  35 /**
  36  * This query reads chart and item data.
  37  *
  38  * @author toni.kalajainen
  39  */
  40 public class ChartAndSubscriptionItemReadQuery extends ResourceRead<ChartAndSubscriptionItemData> {
  41
  42         public ChartAndSubscriptionItemReadQuery(Resource chartItem) {
  43                 super(chartItem);
  44         }
  45
  46         @Override
  47         public ChartAndSubscriptionItemData perform(ReadGraph g) throws DatabaseException {
  48                 ChartAndSubscriptionItemData data = new ChartAndSubscriptionItemData();
  49
  50         Layer0 L0 = Layer0.getInstance(g);
  51         ModelingResources MOD = ModelingResources.getInstance(g);
  52         ChartResource CHART = ChartResource.getInstance(g);
  53         Resource chartItem = resource;
  54         Resource chart = g.getPossibleObject(chartItem, L0.PartOf);
  55         Resource model = g.syncRequest(new PossibleModel( chart ));
  56         Resource subscriptionItem = g.getPossibleObject(chartItem, CHART.Chart_Item_HasSubscriptionItem);
  57         Resource subscription = subscriptionItem==null ? null : g.getPossibleObject(subscriptionItem, L0.PartOf);
  58                 SubscriptionsResult subscriptions = g.sync( new SubscriptionsQuery(model) );
  59
  60                 TrendItem trendItem = g.sync( new TrendItemQuery(chartItem) );
  61
  62                 if ( subscriptionItem != null ) {
  63                         Variable configuration = Variables.getConfigurationContext(g, subscription);
  64                         Binding rviBinding = g.getService(Databoard.class).getBindingUnchecked( RVI.class );
  65                         RVI rvi = g.getRelatedValue(subscriptionItem, MOD.Subscription_Item_VariableId, rviBinding);
  66                         data.variableReference = rvi.toPossibleString(g, configuration);
  67                 }
  68
  69                 data.index = trendItem.index;
  70         data.chartName = g.getPossibleRelatedValue(chart, L0.HasName, Bindings.STRING);
  71                 data.subscriptions = subscriptions.toNames();
  72         data.subscriptions = subscriptions.names.toArray( new String[subscriptions.names.size()]);
  73         data.drawmode = trendItem.drawMode;
  74         data.binaryMode = trendItem.renderer == Renderer.Binary;
  75         data.subscription = subscriptions.getName(subscription);
  76         data.scale = trendItem.scale;
  77         if ( data.subscription==null ) data.subscription="";
  78
  79         data.min = g.getPossibleRelatedValue(chartItem, CHART.Chart_Item_ScaleMode_Min, Bindings.DOUBLE);
  80         data.max = g.getPossibleRelatedValue(chartItem, CHART.Chart_Item_ScaleMode_Max, Bindings.DOUBLE);
  81
  82         data.strokeWidth = trendItem.customStrokeWidth;
  83         data.color = trendItem.customColor != null ? Arrays.copyOf(trendItem.customColor, trendItem.customColor.length) : null;
  84
  85         data.hasSubscriptionItem = subscriptionItem != null;
  86         if ( data.hasSubscriptionItem ) {
  87                 data.label = g.getPossibleRelatedValue(subscriptionItem, L0.HasLabel, Bindings.STRING);
  88                 data.bias = g.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_Bias, Bindings.DOUBLE);
  89                 data.gain = g.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_Gain, Bindings.DOUBLE);
  90                 data.deadband = g.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_Deadband, Bindings.DOUBLE);
  91                 data.interval = g.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_SamplingInterval, Bindings.DOUBLE);
  92                 data.unit = g.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_Unit, Bindings.STRING);
  93         } else {
  94                 data.variableReference = trendItem.label;
  95         }
  96
  97                 return data;
  98         }
  99
 100 }