X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.district.network%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Fprofile%2FVertexSymbolStyle.java;h=913ba201222bf705978d8abae418976475c7d935;hb=4ad7f53b7ed5bcd782ca39020e5e662d8d4c67a1;hp=98078f82f0ada9ebc70149801f2e6051109e9d4d;hpb=8958c9b265fc6a842c76714b60f0d99740434243;p=simantics%2Fdistrict.git

diff --git a/org.simantics.district.network/src/org/simantics/district/network/profile/VertexSymbolStyle.java b/org.simantics.district.network/src/org/simantics/district/network/profile/VertexSymbolStyle.java
index 98078f82..913ba201 100644
--- a/org.simantics.district.network/src/org/simantics/district/network/profile/VertexSymbolStyle.java
+++ b/org.simantics.district.network/src/org/simantics/district/network/profile/VertexSymbolStyle.java
@@ -1,31 +1,58 @@
 package org.simantics.district.network.profile;
 
+import org.simantics.Simantics;
 import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;
+import org.simantics.db.common.request.ResourceRead;
 import org.simantics.db.exception.DatabaseException;
 import org.simantics.district.network.ontology.DistrictNetworkResource;
+import org.simantics.layer0.Layer0;
 import org.simantics.scenegraph.INode;
 import org.simantics.scenegraph.g2d.G2DSceneGraph;
 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
 import org.simantics.scenegraph.profile.EvaluationContext;
 import org.simantics.scenegraph.profile.common.ProfileVariables;
 import org.simantics.scl.runtime.function.Function;
+import org.simantics.scl.runtime.function.FunctionImpl1;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
+@Deprecated
 public class VertexSymbolStyle extends ThrottledStyleBase<String> {
 
-	@SuppressWarnings({ "rawtypes", "unchecked" })
-	@Override
-	public String calculateThrottledStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {
-		DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
-		Resource symbolFunctionResource = graph.getPossibleObject(entry, DN.HasSymbolFunction);
-		if (symbolFunctionResource == null)
-			return null;
-		
-		Function symbolFunction = (Function) graph.getPossibleValue2(symbolFunctionResource, null);
-		if (symbolFunction == null)
-			return null;
-		
-		return (String) symbolFunction.apply(graph, entry);
+	private static final Logger LOGGER = LoggerFactory.getLogger(VertexSymbolStyle.class);
+
+    @Override
+    public String calculateThrottledStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {
+        return calculateStyle(graph, entry, groupItem);
+    }
+
+    @SuppressWarnings({ "rawtypes", "unchecked" })
+    public static String calculateStyle(ReadGraph graph, Resource entry, Resource groupItem) throws DatabaseException {
+        // Prevent PendingVariableExceptions from coming through
+        boolean wasSynchronous = graph.setSynchronous(true);
+        try {
+            Function symbolFunction = getSymbolFunction(graph, entry);
+            if (symbolFunction == null)
+                return null;
+
+            try {
+                return (String) Simantics.applySCLRead(graph, symbolFunction, groupItem);
+            } catch (Exception e) {
+                LOGGER.error("Getting dynamic symbol for " + groupItem + " ("
+                        + graph.getPossibleRelatedValue(groupItem, Layer0.getInstance(graph).HasName) + ") failed", e);
+                return null;
+            }
+        } finally {
+            graph.setSynchronous(wasSynchronous);
+        }
+    }
+
+	@SuppressWarnings("rawtypes")
+	public static Function getSymbolFunction(ReadGraph graph, Resource entry) throws DatabaseException {
+		// Cache function read for profile entry
+		return graph.syncRequest(new SymbolFunctionRequest(entry), TransientCacheListener.<Function>instance());
 	}
 
 	@Override
@@ -43,4 +70,29 @@ public class VertexSymbolStyle extends ThrottledStyleBase<String> {
 			ProfileVariables.claimNodeProperty(nn, "SVG", null, evaluationContext);
 	}
 
+	@SuppressWarnings("rawtypes")
+	protected static final class SymbolFunctionRequest extends ResourceRead<Function> {
+		protected static final Function CONST_NULL = new FunctionImpl1<Resource, String>() {
+			@Override
+			public String apply(Resource p0) {
+				return null;
+			}
+		};
+		
+		public SymbolFunctionRequest(Resource entry) {
+			super(entry);
+		}
+
+		@Override
+		public Function perform(ReadGraph graph) throws DatabaseException {
+			DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
+			
+			Function symbolFunction = (Function) graph.getPossibleRelatedValue2(resource, DN.HasSymbolFunction, resource);
+			if (symbolFunction == null)
+				symbolFunction = CONST_NULL;
+			
+			return symbolFunction;
+		}
+	}
+
 }