bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/procedure/Procedures.java

   1 package org.simantics.scl.runtime.procedure;
   2
   3 import java.util.UUID;
   4
   5 import org.simantics.scl.runtime.function.Function;
   6 import org.simantics.scl.runtime.function.FunctionImpl1;
   7 import org.simantics.scl.runtime.tuple.Tuple0;
   8
   9
  10 public class Procedures {
  11     public static boolean isInterrupted() {
  12         return Thread.currentThread().isInterrupted();
  13     }
  14
  15     public static void checkInterrupted() throws InterruptedException {
  16         if(Thread.interrupted())
  17             throw new InterruptedException();
  18     }
  19
  20     public static String generateUID() {
  21         return UUID.randomUUID().toString();
  22     }
  23
  24     private static Function runProc = new FunctionImpl1() {
  25         @Override
  26         public Object apply(Object f) {
  27             return ((Function)f).apply(Tuple0.INSTANCE);
  28         }
  29     };
  30
  31     public static Function runProc() {
  32         return runProc;
  33     }
  34
  35     public static Object catch_(Class<?> exceptionClass, Function expression, Function handler) throws Throwable {
  36         try {
  37             return expression.apply(Tuple0.INSTANCE);
  38         } catch(Throwable e) {
  39             if(exceptionClass.isAssignableFrom(e.getClass()))
  40                 return handler.apply(e);
  41             else
  42                 throw e;
  43         }
  44     }
  45 }