bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/wrapper/SyncToAsyncListener.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.db.common.procedure.wrapper;\r
  13 \r
  14 import org.simantics.db.AsyncReadGraph;\r
  15 import org.simantics.db.ReadGraph;\r
  16 import org.simantics.db.common.request.ReadRequest;\r
  17 import org.simantics.db.common.utils.Logger;\r
  18 import org.simantics.db.exception.DatabaseException;\r
  19 import org.simantics.db.procedure.AsyncListener;\r
  20 import org.simantics.db.procedure.Procedure;\r
  21 import org.simantics.db.procedure.SyncListener;\r
  22 \r
  23 final public class SyncToAsyncListener<T> implements AsyncListener<T> {\r
  24 \r
  25         final private SyncListener<T> procedure;\r
  26 \r
  27         public SyncToAsyncListener(SyncListener<T> procedure) {\r
  28                 this.procedure = procedure;\r
  29         }\r
  30         \r
  31         @Override\r
  32         final public void execute(AsyncReadGraph graph, final T result) {\r
  33 //          System.out.println("SyncToAsyncListener for " + procedure + " - execute " + result);\r
  34                 graph.asyncRequest(new ReadRequest() {\r
  35 \r
  36                         @Override\r
  37                         public void run(ReadGraph graph) throws DatabaseException {\r
  38 //                      System.out.println("SyncToAsyncListener for " + procedure + " - execute " + result);\r
  39                                 procedure.execute(graph, result);\r
  40                         }\r
  41                         \r
  42                         @Override\r
  43                         public String toString() {\r
  44                             return "execute for " + SyncToAsyncListener.this.toString();\r
  45                         }\r
  46                         \r
  47                 }, new Procedure<Object>() {\r
  48 \r
  49             @Override\r
  50             public void exception(Throwable t) {\r
  51                         Logger.defaultLogError(t);\r
  52             }\r
  53 \r
  54             @Override\r
  55             public void execute(Object result) {\r
  56             }\r
  57                     \r
  58                 });\r
  59         }\r
  60 \r
  61         @Override\r
  62         final public void exception(AsyncReadGraph graph, final Throwable t) {\r
  63         graph.asyncRequest(new ReadRequest() {\r
  64 \r
  65             @Override\r
  66             public void run(ReadGraph graph) throws DatabaseException {\r
  67                 procedure.exception(graph, t);\r
  68             }\r
  69             \r
  70         });\r
  71         }\r
  72 \r
  73         @Override\r
  74         public boolean isDisposed() {\r
  75             return procedure.isDisposed();\r
  76         }\r
  77         \r
  78     @Override\r
  79     public String toString() {\r
  80         return "SyncToAsyncListener -> " + procedure;\r
  81    }\r
  82         \r
  83 }\r