bundles/org.simantics.issues.common/src/org/simantics/issues/common/IssueSourceUtils.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.issues.common;\r
  13 \r
  14 import java.util.Collection;\r
  15 import java.util.Collections;\r
  16 import java.util.HashSet;\r
  17 import java.util.Map;\r
  18 import java.util.Set;\r
  19 \r
  20 import org.simantics.databoard.Bindings;\r
  21 import org.simantics.db.ReadGraph;\r
  22 import org.simantics.db.Resource;\r
  23 import org.simantics.db.ResourceSet;\r
  24 import org.simantics.db.VirtualGraph;\r
  25 import org.simantics.db.WriteGraph;\r
  26 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;\r
  27 import org.simantics.db.common.procedure.adapter.TransientCacheListener;\r
  28 import org.simantics.db.common.request.BinaryRead;\r
  29 import org.simantics.db.common.request.DependentInstances3;\r
  30 import org.simantics.db.common.request.ResourceSetGraph;\r
  31 import org.simantics.db.common.request.WriteRequest;\r
  32 import org.simantics.db.common.utils.NameUtils;\r
  33 import org.simantics.db.exception.DatabaseException;\r
  34 import org.simantics.db.layer0.changeset.MetadataUtils;\r
  35 import org.simantics.db.layer0.genericrelation.DependencyChanges;\r
  36 import org.simantics.db.layer0.genericrelation.DependencyChanges.Change;\r
  37 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentAddition;\r
  38 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentModification;\r
  39 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentRemoval;\r
  40 import org.simantics.db.service.CollectionSupport;\r
  41 import org.simantics.db.service.ManagementSupport;\r
  42 import org.simantics.db.service.VirtualGraphSupport;\r
  43 import org.simantics.issues.ontology.IssueResource;\r
  44 \r
  45 public class IssueSourceUtils {\r
  46         \r
  47         public static final boolean DEBUG = false;\r
  48         public static final boolean DEBUG_CHANGE_ENTRIES = false;\r
  49         public static final boolean DEBUG_RESOURCES = false;\r
  50 \r
  51         public static void update(WriteGraph graph, final Resource source) throws DatabaseException {\r
  52 \r
  53                 IssueResource ISSUE = IssueResource.getInstance(graph);\r
  54                 \r
  55                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);\r
  56                 if(revisionId == null) revisionId = 0L;\r
  57                 \r
  58                 ManagementSupport support = graph.getService(ManagementSupport.class);\r
  59                 final long headRevision = support.getHeadRevisionId()+1;\r
  60                 \r
  61                 if(revisionId < headRevision) {\r
  62                         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);\r
  63                 VirtualGraph vg = vgs.getWorkspacePersistent(IssueConstants.ISSUE_VG);\r
  64                 graph.syncRequest(new WriteRequest(vg) {\r
  65 \r
  66                                 @Override\r
  67                                 public void perform(WriteGraph graph) throws DatabaseException {\r
  68                                         IssueResource ISSUE = IssueResource.getInstance(graph);\r
  69                                         graph.claimLiteral(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, headRevision, Bindings.LONG);\r
  70                                         if(DEBUG)\r
  71                                                 System.err.println("-update[" + NameUtils.getSafeName(graph, source) + "][" + headRevision + "]");\r
  72                                 }\r
  73 \r
  74                         });\r
  75                 }\r
  76                 \r
  77         }\r
  78         \r
  79         public static boolean hasChanges(ReadGraph graph, DependencyChanges event, Resource root, Resource from) throws DatabaseException {\r
  80                 Change[] changes = event.get(root);\r
  81                 if(changes == null) return false;\r
  82                 for(Change c : changes) {\r
  83                         if(c instanceof ComponentAddition) {\r
  84                                 return true;\r
  85                         } else if(c instanceof ComponentRemoval) {\r
  86                                 return true;\r
  87                         } else if(c instanceof ComponentModification) {\r
  88                                 return true;\r
  89                         }\r
  90                 }\r
  91                 return false;\r
  92         }\r
  93 \r
  94     public static class Test3 extends BinaryRead<Resource, ResourceSet, Collection<Resource>> {\r
  95 \r
  96         public Test3(Resource component, ResourceSet types) {\r
  97             super(component, types);\r
  98         }\r
  99 \r
 100         @Override\r
 101         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
 102             ResourceSetGraph rsg = graph.syncRequest(new DependentInstances3(parameter), TransientCacheListener.<ResourceSetGraph>instance());\r
 103                 return rsg.resolve(graph, parameter2);\r
 104         }\r
 105 \r
 106     };\r
 107 \r
 108         private static void test(ReadGraph graph, Resource component, ResourceSet types, Collection<Resource> result) throws DatabaseException {\r
 109                 Collection<Resource> data = graph.syncRequest(new Test3(component, types), TransientCacheAsyncListener.<Collection<Resource>>instance());\r
 110                 if(DEBUG_RESOURCES) {\r
 111                         for(Resource r : data) {\r
 112                                 System.err.println("IssueSourceUtils.test " + " " + NameUtils.getSafeName(graph, component) + " " + NameUtils.getSafeName(graph, types) + " " + NameUtils.getSafeName(graph, r));\r
 113                         }\r
 114                 }\r
 115                 result.addAll(data);\r
 116         }\r
 117 \r
 118         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource model, Resource from, Set<Resource> types, DependencyChanges event) throws DatabaseException {\r
 119 \r
 120                 Change[] changes = event.get(model);\r
 121                 if(changes == null) return Collections.emptySet();\r
 122 \r
 123                 CollectionSupport cs = graph.getService(CollectionSupport.class);\r
 124                 ResourceSet typeSet = cs.getResourceSet(graph, types);\r
 125                 \r
 126                 Set<Resource> result = new HashSet<Resource>();\r
 127                 for(Change c : changes) {\r
 128                         processChange(graph, c, typeSet, result);\r
 129                 }\r
 130 \r
 131                 return result;\r
 132                 \r
 133         }\r
 134 \r
 135         public static void processChange(ReadGraph graph, Change c, ResourceSet types, Set<Resource> result) throws DatabaseException {\r
 136                 if(DEBUG_CHANGE_ENTRIES)\r
 137                         System.err.println("-processChange: " + c.toString(graph));\r
 138                 if(c instanceof ComponentAddition) {\r
 139                         ComponentAddition addition = (ComponentAddition)c;\r
 140                         test(graph, addition.component, types, result);\r
 141                 } else if(c instanceof ComponentRemoval) {\r
 142                         ComponentRemoval removal = (ComponentRemoval)c;\r
 143                         result.add(removal.component);\r
 144                 } else if(c instanceof ComponentModification) {\r
 145                         ComponentModification modification = (ComponentModification)c;\r
 146                         test(graph, modification.component, types, result);\r
 147                 }\r
 148                 \r
 149         }\r
 150 \r
 151         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource source, Resource model, Resource from, Set<Resource> types) throws DatabaseException {\r
 152 \r
 153                 IssueResource ISSUE = IssueResource.getInstance(graph);\r
 154                 \r
 155                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);\r
 156                 if(revisionId == null) revisionId = 0L;\r
 157 \r
 158                 if(DEBUG)\r
 159                         System.err.println("getChangedDependencies[" + NameUtils.getSafeName(graph, source) + "][" + revisionId + "]");\r
 160                 \r
 161                 Map<Resource, Collection<Change>> index = MetadataUtils.getDependencyChangesFrom(graph, revisionId+1);\r
 162 \r
 163                 CollectionSupport cs = graph.getService(CollectionSupport.class);\r
 164                 ResourceSet typeSet = cs.getResourceSet(graph, types);\r
 165 \r
 166                 Collection<Change> modelChanges = index.get(model);\r
 167                 if(modelChanges == null) return Collections.emptySet();\r
 168                 \r
 169                 Set<Resource> result = new HashSet<Resource>();\r
 170                 for(Change c : modelChanges) {\r
 171                         processChange(graph, c, typeSet, result);\r
 172                 }\r
 173 \r
 174                 return result;\r
 175                 \r
 176         }\r
 177         \r
 178 }\r