bundles/org.simantics.ui/src/org/simantics/ui/tester/CollectionResourcePropertyTester.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.ui.tester;\r
  13 \r
  14 import java.util.Arrays;\r
  15 \r
  16 import org.eclipse.core.expressions.PropertyTester;\r
  17 import org.simantics.DatabaseJob;\r
  18 import org.simantics.Simantics;\r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.db.common.request.UniqueRead;\r
  22 import org.simantics.db.common.utils.NameUtils;\r
  23 import org.simantics.db.common.utils.RequestUtil;\r
  24 import org.simantics.db.exception.DatabaseException;\r
  25 import org.simantics.db.exception.ResourceNotFoundException;\r
  26 import org.simantics.db.management.ISessionContext;\r
  27 import org.simantics.scl.reflection.OntologyVersions;\r
  28 import org.simantics.ui.SimanticsUI;\r
  29 import org.simantics.ui.utils.ResourceAdaptionUtils;\r
  30 \r
  31 /**\r
  32  * @author Tuukka Lehtonen\r
  33  */\r
  34 public class CollectionResourcePropertyTester extends PropertyTester {\r
  35 \r
  36     private static final boolean DEBUG = false;\r
  37 \r
  38     /**\r
  39      * Tests if the received resource is an instance of any of the URIs\r
  40      * listed in the arguments.\r
  41      */\r
  42     protected static final String RESOURCE_TYPES = "resourceTypes";\r
  43 \r
  44     private static final OntologyVersions VERSIONS = OntologyVersions.getInstance();\r
  45     \r
  46     @Override\r
  47     public boolean test(final Object receiver, final String property, final Object[] args, final Object expectedValue) {\r
  48         if (DEBUG)\r
  49             System.out.println("TEST: " + receiver + ", " + property + ", " + Arrays.toString(args) + ", " + expectedValue);\r
  50 \r
  51         final Resource[] resources = ResourceAdaptionUtils.toResources(receiver);\r
  52         if (resources == null)\r
  53             return false;\r
  54 \r
  55         ISessionContext ctx = Simantics.getSessionContext();\r
  56         if (ctx == null)\r
  57             return false;\r
  58 \r
  59         if (DatabaseJob.inProgress())\r
  60             return false;\r
  61 \r
  62         try {\r
  63             return RequestUtil.trySyncRequest(\r
  64                     ctx.getSession(),\r
  65                     SimanticsUI.UI_THREAD_REQUEST_START_TIMEOUT,\r
  66                     SimanticsUI.UI_THREAD_REQUEST_EXECUTION_TIMEOUT,\r
  67                     false,\r
  68                     new UniqueRead<Boolean>() {\r
  69                 @Override\r
  70                 public Boolean perform(ReadGraph g) throws DatabaseException {\r
  71                     return Boolean.valueOf(doTest(g, resources, property, args, expectedValue));\r
  72                 }\r
  73             });\r
  74         } catch (DatabaseException | InterruptedException e) {\r
  75             // Purposefully not logging these exceptions, there might be way too\r
  76             // many even under normal circumstances.\r
  77             // TODO: add debug tracing options controlling the printing of these exceptions\r
  78             return false;\r
  79         }\r
  80     }\r
  81 \r
  82     protected boolean doTest(ReadGraph g, Resource[] resources, String property, Object[] args, Object expectedValue) throws DatabaseException {\r
  83         if (RESOURCE_TYPES.equals(property)) {\r
  84                 loop: for(Resource r : resources) {\r
  85                         if (DEBUG)\r
  86                                 System.out.println("** " + NameUtils.getSafeName(g, r));\r
  87                         try {\r
  88                                 for (int i = 0; i < args.length; i++) {\r
  89                                         if (g.isInstanceOf(r, g.getResource(VERSIONS.currentVersion((String) args[i])))) {\r
  90                                                 if (DEBUG)\r
  91                                                         System.out.println("IS INSTANCE OF " + args[i]);\r
  92                                                 continue loop;\r
  93                                         }\r
  94                                 }\r
  95                         } catch (ResourceNotFoundException e) {\r
  96                                 /* This is a natural situation (database does not contain all resources\r
  97                    referred in plugins). No error reporting.\r
  98                                  */\r
  99                                 return false;\r
 100                         }\r
 101                         if (DEBUG)\r
 102                                 System.out.println("NOT AN INSTANCE OF ANY OF: " + Arrays.toString(args));\r
 103                         return false;\r
 104                 }\r
 105             return true;\r
 106         }\r
 107         return false;\r
 108     }\r
 109 \r
 110 }\r