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

   1 package org.simantics.charts.ui;
   2
   3 import java.util.Collections;
   4 import java.util.Map;
   5
   6 import org.simantics.browsing.ui.model.labels.LabelRule;
   7 import org.simantics.charts.ontology.ChartResource;
   8 import org.simantics.databoard.Bindings;
   9 import org.simantics.databoard.Databoard;
  10 import org.simantics.databoard.binding.Binding;
  11 import org.simantics.databoard.util.URIStringUtils;
  12 import org.simantics.db.ReadGraph;
  13 import org.simantics.db.Resource;
  14 import org.simantics.db.exception.DatabaseException;
  15 import org.simantics.db.layer0.request.PossibleActiveExperiment;
  16 import org.simantics.db.layer0.request.PossibleModel;
  17 import org.simantics.db.layer0.variable.RVI;
  18 import org.simantics.db.layer0.variable.Variable;
  19 import org.simantics.db.layer0.variable.Variables;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.modeling.ModelingResources;
  22 import org.simantics.modeling.subscription.SubscriptionItemLabel;
  23
  24 /**
  25  * Used for labeling both chart plots and subscription items.
  26  *
  27  * @author Tuukka Lehtonen
  28  */
  29 public class ChartItemLabelRule implements LabelRule {
  30
  31     public static final ChartItemLabelRule INSTANCE = new ChartItemLabelRule();
  32
  33     @Override
  34     public boolean isCompatible(Class<?> contentType) {
  35         return contentType.equals(Resource.class);
  36     }
  37
  38     public String getLabel_(ReadGraph graph, Resource item) throws DatabaseException {
  39         Layer0 L0 = Layer0.getInstance(graph);
  40         ChartResource CHART = ChartResource.getInstance(graph);
  41         ModelingResources MOD = ModelingResources.getInstance(graph);
  42
  43         StringBuilder sb = new StringBuilder();
  44
  45         Integer index = graph.getPossibleRelatedValue(item, CHART.Chart_Item_Index, Bindings.INTEGER);
  46         sb.append( index==null ? "" : index+". " );
  47
  48         String subscriptionItemLabel = null;
  49         String unitStr = null;
  50         SubscriptionState subscriptionState = SubscriptionState.IGNORE;
  51         Resource subscriptionItem = graph.getPossibleObject(item, CHART.Chart_Item_HasSubscriptionItem);
  52         if (subscriptionItem != null) {
  53             subscriptionItemLabel = graph.getPossibleRelatedValue(subscriptionItem, L0.HasLabel, Bindings.STRING);
  54
  55             Binding rviBinding = graph.getService(Databoard.class).getBindingUnchecked( RVI.class );
  56             RVI rvi = graph.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_VariableId, rviBinding);
  57
  58             // Create label from rvi if subscription has no label
  59             if (subscriptionItemLabel == null || subscriptionItemLabel.isEmpty()) {
  60                 Variable configuration = Variables.getPossibleConfigurationContext(graph, subscriptionItem);
  61                 if (rvi != null && configuration != null) {
  62                     subscriptionItemLabel = rvi.asPossibleString(graph, configuration);
  63                     if (subscriptionItemLabel == null)
  64                         subscriptionItemLabel = rvi.toPossibleString(graph, configuration);
  65                     if (subscriptionItemLabel != null) {
  66                         subscriptionItemLabel = SubscriptionItemLabel.removeVariablePrefixPath(subscriptionItemLabel);
  67                         subscriptionItemLabel = URIStringUtils.unescape(subscriptionItemLabel);
  68                     }
  69                 }
  70             }
  71
  72             subscriptionState = getSubscriptionState(graph, rvi, subscriptionItem);
  73             unitStr = graph.getPossibleRelatedValue(subscriptionItem, MOD.Subscription_Item_Unit, Bindings.STRING);
  74         }
  75         if (subscriptionItemLabel!=null) {
  76             sb.append(subscriptionItemLabel);
  77         } else {
  78             sb.append("<not associated to a subscription item>");
  79         }
  80
  81         if ( unitStr != null && !unitStr.isEmpty() ) {
  82             sb.append(" [");
  83             sb.append(unitStr);
  84             sb.append("]");
  85         }
  86
  87         if (subscriptionState == SubscriptionState.INVALID)
  88             sb.append(" (invalid subscription)");
  89
  90         return sb.toString();
  91     }
  92
  93     private static SubscriptionState getSubscriptionState(ReadGraph graph, RVI rvi, Resource subscriptionItem) throws DatabaseException {
  94         Resource model = graph.sync( new PossibleModel(subscriptionItem) );
  95         if (model == null)
  96             return SubscriptionState.IGNORE;
  97         Resource run = graph.sync( new PossibleActiveExperiment(model) );
  98         if (run == null)
  99             return SubscriptionState.IGNORE;
 100         Variable base = Variables.getPossibleVariable(graph, run);
 101         if (base == null)
 102             return SubscriptionState.IGNORE;
 103         Variable var = rvi.resolvePossible(graph, base);
 104         return var != null ? SubscriptionState.VALID :  SubscriptionState.INVALID;
 105     }
 106
 107     @Override
 108     public Map<String, String> getLabel(ReadGraph graph, Object content) throws DatabaseException {
 109         return Collections.singletonMap(ChartItemImageRule.COLUMN_KEY, getLabel_(graph, (Resource) content));
 110     }
 111
 112     public static enum SubscriptionState {
 113         IGNORE,
 114         INVALID,
 115         VALID
 116     }
 117
 118 }