Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.layer0.utils / src / org / simantics / layer0 / utils / direct / ExceptionUtils.java

diff --git a/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/direct/ExceptionUtils.java b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/direct/ExceptionUtils.java
new file mode 100644 (file)
index 0000000..552cbdd
--- /dev/null
+++ b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/direct/ExceptionUtils.java
@@ -0,0 +1,83 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.layer0.utils.direct;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.db.request.Read;\r
+\r
+public class ExceptionUtils {\r
+    \r
+    public static <T> void decipher(AsyncReadGraph graph, Throwable throwable, final AsyncProcedure<T> procedure) {\r
+\r
+        if(throwable instanceof DatabaseException) {\r
+\r
+            System.out.println("decipher " + throwable);\r
+            \r
+            final DatabaseException e = (DatabaseException)throwable;\r
+            \r
+            Collection<Resource> resources = e.getResources();\r
+            if(resources != null) {\r
+\r
+                graph.asyncRequest(new Read<ArrayList<String>>() {\r
+    \r
+                    @Override\r
+                    public ArrayList<String> perform(ReadGraph graph) throws DatabaseException {\r
+                        \r
+                        Collection<Resource> resources = e.getResources();\r
+                        ArrayList<String> names = new ArrayList<String>();\r
+                        \r
+                        for(Resource r : resources) {\r
+                            names.add(NameUtils.getSafeName(graph, r));\r
+                        }\r
+    \r
+                        return names;\r
+                        \r
+                    }\r
+                    \r
+                }, new AsyncProcedure<ArrayList<String>>() {\r
+    \r
+                    @Override\r
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                        procedure.exception(graph, throwable);\r
+                    }\r
+    \r
+                    @Override\r
+                    public void execute(AsyncReadGraph graph, ArrayList<String> names) {\r
+                        e.setNames(names);\r
+                        procedure.exception(graph, e);\r
+                    }\r
+                    \r
+                });\r
+                \r
+            } else {\r
+                \r
+                procedure.exception(graph, throwable);\r
+\r
+            }\r
+            \r
+        } else {\r
+            \r
+            procedure.exception(graph, throwable);\r
+\r
+        }\r
+        \r
+    }\r
+\r
+}\r