bundles/org.simantics.db.common/src/org/simantics/db/common/utils/Functions.java

   1 package org.simantics.db.common.utils;\r
   2 \r
   3 import java.lang.reflect.InvocationTargetException;\r
   4 \r
   5 import org.simantics.db.RequestProcessor;\r
   6 import org.simantics.db.Resource;\r
   7 import org.simantics.db.common.request.AdaptValue;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.scl.runtime.function.Function;\r
  10 \r
  11 public class Functions {\r
  12         \r
  13         private static DatabaseException findPossibleRootException(Throwable t) {\r
  14                 if(t == null) return null;\r
  15                 if(t instanceof DatabaseException) return (DatabaseException)t;\r
  16                 if(t instanceof RuntimeException || t instanceof InvocationTargetException) {\r
  17                         return findPossibleRootException(t.getCause());\r
  18                 }\r
  19                 return null;\r
  20         }\r
  21         \r
  22         public static <T> T exec(RequestProcessor rp, Resource function, Object ... parameters) throws DatabaseException {\r
  23         Object op = rp.syncRequest(new AdaptValue(function));\r
  24         try {\r
  25                 return (T) ((Function)op).applyArray(parameters);\r
  26         } catch (RuntimeException e) {\r
  27                 DatabaseException dte = findPossibleRootException(e);\r
  28                 if(dte != null) throw dte;\r
  29                 else throw new DatabaseException(e);\r
  30         }\r
  31         }\r
  32         \r
  33 }\r