bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/utils/StatementInfo.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2016 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  *     THTH ry - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.debug.browser.utils;\r
  13 \r
  14 import java.util.Arrays;\r
  15 import java.util.Collection;\r
  16 \r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.Resource;\r
  19 import org.simantics.db.Statement;\r
  20 import org.simantics.db.VirtualGraph;\r
  21 import org.simantics.db.exception.DatabaseException;\r
  22 import org.simantics.db.service.VirtualGraphSupport;\r
  23 \r
  24 public class StatementInfo implements Comparable<StatementInfo> {\r
  25     public final ResourceInfo subject; // null, if not asserted\r
  26     public final ResourceInfo object;\r
  27     public final ResourceInfo[] objectTypes;\r
  28     public final String graph; // null, if in DB\r
  29     \r
  30     public StatementInfo(ReadGraph graph, Resource defaultSubject, Statement statement) throws DatabaseException {\r
  31         Resource subject = statement.getSubject();\r
  32         Resource predicate = statement.getPredicate();\r
  33         Resource object = statement.getObject();\r
  34         Collection<Resource> objectTypes = graph.getPrincipalTypes(object);\r
  35         \r
  36         if(subject.equalsResource(defaultSubject))\r
  37             this.subject = null;\r
  38         else\r
  39             this.subject = new ResourceInfo(graph, subject);\r
  40         this.object = new ResourceInfo(graph, object);\r
  41         if(objectTypes.isEmpty())\r
  42             this.objectTypes = null;\r
  43         else\r
  44             this.objectTypes = mapTypes(graph, objectTypes);\r
  45         this.graph = getGraphName(graph, subject, predicate, object);\r
  46     }\r
  47     \r
  48 \r
  49     private static ResourceInfo[] mapTypes(ReadGraph graph, Collection<Resource> types) throws DatabaseException {\r
  50         ResourceInfo[] result = new ResourceInfo[types.size()];\r
  51         int i=0;\r
  52         for(Resource type : types)\r
  53             result[i++] = new ResourceInfo(graph, type);\r
  54         Arrays.sort(result);\r
  55         return result;\r
  56     }\r
  57 \r
  58 \r
  59     public static String getGraphName(ReadGraph graph, Resource s, Resource p, Resource o) throws DatabaseException {\r
  60         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);\r
  61         VirtualGraph vg = vgs.getGraph(graph, s, p, o);\r
  62         if(vg != null)\r
  63             return vg.toString();\r
  64         else\r
  65             return null;\r
  66     }\r
  67 \r
  68     @Override\r
  69     public int compareTo(StatementInfo o) {\r
  70         return object.compareTo(o.object);\r
  71     }\r
  72 }\r