X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fadapters%2FSCLLabelRule.java;h=243ef4d3693c74545b9aec74f521d551555aaeda;hp=b788128c380318f0ac817e486e26dad633facff1;hb=fa7f0fb93e91d0042387faff57393758dcdbf890;hpb=969bd23cab98a79ca9101af33334000879fb60c5

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/SCLLabelRule.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/SCLLabelRule.java
index b788128c3..243ef4d36 100644
--- a/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/SCLLabelRule.java
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/SCLLabelRule.java
@@ -1,57 +1,64 @@
-package org.simantics.modeling.adapters;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import org.simantics.browsing.ui.model.labels.LabelRule;
-import org.simantics.db.ReadGraph;
-import org.simantics.db.Resource;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.layer0.variable.Variable;
-import org.simantics.db.layer0.variable.Variables;
-import org.simantics.modeling.ModelingResources;
-import org.simantics.scl.runtime.SCLContext;
-import org.simantics.scl.runtime.function.Function1;
-
-public class SCLLabelRule implements LabelRule {
-
-    private Resource rule;
-    
-    public SCLLabelRule(ReadGraph graph, Resource rule) {
-        this.rule = rule;
-    }
-    
-    @Override
-    public boolean isCompatible(Class<?> contentType) {
-        return contentType.equals(Resource.class) || contentType.equals(Variable.class);
-    }
-
-    @Override
-    public Map<String, String> getLabel(ReadGraph graph, Object content) throws DatabaseException {
-        ModelingResources MOD = ModelingResources.getInstance(graph);
-        
-        Variable ruleVariable = Variables.getVariable(graph, rule);
-
-        Function1<Object,List<String>> getLabels = ruleVariable.getPossiblePropertyValue(graph, MOD.SCLLabelRule_getLabels);
-        if(getLabels == null) return Collections.emptyMap();
-
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.get("graph");
-        try {
-            sclContext.put("graph", graph);
-            List<String> value = getLabels.apply(content);
-            Map<String,String> result = new HashMap<>();
-            for(int i=0;i<value.size();i+=2) {
-            	result.put(value.get(i), value.get(i+1));
-            }
-            return result;
-        } catch (Throwable t) {
-        	throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-    }
-
-}
+package org.simantics.modeling.adapters;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.simantics.browsing.ui.model.labels.LabelRule;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.db.layer0.variable.Variables;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.scl.runtime.SCLContext;
+import org.simantics.scl.runtime.function.Function1;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SCLLabelRule implements LabelRule {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SCLLabelRule.class);
+
+    private Resource rule;
+    
+    public SCLLabelRule(ReadGraph graph, Resource rule) {
+        this.rule = rule;
+    }
+    
+    @Override
+    public boolean isCompatible(Class<?> contentType) {
+        return contentType.equals(Resource.class) || contentType.equals(Variable.class);
+    }
+
+    @Override
+    public Map<String, String> getLabel(ReadGraph graph, Object content) throws DatabaseException {
+        ModelingResources MOD = ModelingResources.getInstance(graph);
+        
+        Variable ruleVariable = Variables.getVariable(graph, rule);
+
+        Function1<Object,List<String>> getLabels = ruleVariable.getPossiblePropertyValue(graph, MOD.SCLLabelRule_getLabels);
+        if(getLabels == null) {
+            LOGGER.warn("Didn't find value for subject={}, predicate={}.", rule, ModelingResources.URIs.SCLLabelRule_getLabels);
+            return Collections.emptyMap();
+        }
+
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.get("graph");
+        try {
+            sclContext.put("graph", graph);
+            List<String> value = getLabels.apply(content);
+            Map<String,String> result = new HashMap<>();
+            for(int i=0;i<value.size();i+=2) {
+            	result.put(value.get(i), value.get(i+1));
+            }
+            return result;
+        } catch (Throwable t) {
+            LOGGER.error("Calculating label failed.", t);
+        	throw new DatabaseException(t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+    }
+
+}