Contextual adapters must throw instead of returning null

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / diagram / monitor / ObtainedFormatterAdapter.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/monitor/ObtainedFormatterAdapter.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/monitor/ObtainedFormatterAdapter.java
index 20846c61b5c96d9e76787c0190c4be1ea1fc88fe..3f0200c961ecfbe34c4bcc82123c9f95d08a8305 100644 (file)
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/monitor/ObtainedFormatterAdapter.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/monitor/ObtainedFormatterAdapter.java
@@ -1,41 +1,42 @@
-package org.simantics.modeling.ui.diagram.monitor;\r
-\r
-import java.util.ArrayList;\r
-import java.util.Collections;\r
-\r
-import org.simantics.common.format.Formatter;\r
-import org.simantics.databoard.Bindings;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.RelationContext;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.Statement;\r
-import org.simantics.db.common.adaption.SimpleContextualAdapter;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.property.OrderedResource;\r
-import org.simantics.diagram.stubs.DiagramResource;\r
-import org.simantics.operation.Layer0X;\r
-\r
-public class ObtainedFormatterAdapter extends SimpleContextualAdapter<Formatter, RelationContext> {\r
-\r
-       @Override\r
-       public Formatter adapt(ReadGraph graph, Resource source, RelationContext context) throws DatabaseException {\r
-               \r
-           Layer0X L0X = Layer0X.getInstance(graph);\r
-               DiagramResource DIA = DiagramResource.getInstance(graph);\r
-               ArrayList<OrderedResource> order = new ArrayList<OrderedResource>();\r
-               for(Statement stm : graph.getStatements(context.getSubject(), L0X.ObtainsProperty)) {\r
-                       Integer position = graph.getRelatedValue(stm.getPredicate(), L0X.NaturalNumberOrderRelation, Bindings.INTEGER);\r
-                       order.add(new OrderedResource(position, stm.getObject()));\r
-               }\r
-               if (order.size() > 1)\r
-                       Collections.sort(order);\r
-               for(OrderedResource or : order) {\r
-                       Formatter result = graph.getPossibleRelatedAdapter(or.r, DIA.HasFormatter, Formatter.class);\r
-                       if(result != null) return result;\r
-               }\r
-               \r
-               return null;\r
-               \r
-       }\r
-\r
-}\r
+package org.simantics.modeling.ui.diagram.monitor;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+import org.simantics.common.format.Formatter;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RelationContext;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.common.adaption.SimpleContextualAdapter;
+import org.simantics.db.exception.AdaptionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.property.OrderedResource;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.operation.Layer0X;
+
+public class ObtainedFormatterAdapter extends SimpleContextualAdapter<Formatter, RelationContext> {
+
+       @Override
+       public Formatter adapt(ReadGraph graph, Resource source, RelationContext context) throws DatabaseException {
+               
+           Layer0X L0X = Layer0X.getInstance(graph);
+               DiagramResource DIA = DiagramResource.getInstance(graph);
+               ArrayList<OrderedResource> order = new ArrayList<OrderedResource>();
+               for(Statement stm : graph.getStatements(context.getSubject(), L0X.ObtainsProperty)) {
+                       Integer position = graph.getRelatedValue(stm.getPredicate(), L0X.NaturalNumberOrderRelation, Bindings.INTEGER);
+                       order.add(new OrderedResource(position, stm.getObject()));
+               }
+               if (order.size() > 1)
+                       Collections.sort(order);
+               for(OrderedResource or : order) {
+                       Formatter result = graph.getPossibleRelatedAdapter(or.r, DIA.HasFormatter, Formatter.class);
+                       if(result != null) return result;
+               }
+               
+               throw new AdaptionException("No obtained formatter available");
+               
+       }
+
+}