bundles/org.simantics.issues.common/src/org/simantics/issues/common/IssueSourceUtils.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.issues.common;
  13
  14 import java.util.Collection;
  15 import java.util.Collections;
  16 import java.util.HashSet;
  17 import java.util.Map;
  18 import java.util.Set;
  19
  20 import org.simantics.databoard.Bindings;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.ResourceSet;
  24 import org.simantics.db.VirtualGraph;
  25 import org.simantics.db.WriteGraph;
  26 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  27 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  28 import org.simantics.db.common.request.BinaryRead;
  29 import org.simantics.db.common.request.DependentInstances3;
  30 import org.simantics.db.common.request.ResourceSetGraph;
  31 import org.simantics.db.common.request.WriteRequest;
  32 import org.simantics.db.common.utils.NameUtils;
  33 import org.simantics.db.exception.DatabaseException;
  34 import org.simantics.db.layer0.changeset.MetadataUtils;
  35 import org.simantics.db.layer0.genericrelation.DependencyChanges;
  36 import org.simantics.db.layer0.genericrelation.DependencyChanges.Change;
  37 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentAddition;
  38 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentModification;
  39 import org.simantics.db.layer0.genericrelation.DependencyChanges.ComponentRemoval;
  40 import org.simantics.db.service.CollectionSupport;
  41 import org.simantics.db.service.ManagementSupport;
  42 import org.simantics.db.service.VirtualGraphSupport;
  43 import org.simantics.issues.ontology.IssueResource;
  44
  45 public class IssueSourceUtils {
  46
  47         public static final boolean DEBUG = false;
  48         public static final boolean DEBUG_CHANGE_ENTRIES = false;
  49         public static final boolean DEBUG_RESOURCES = false;
  50
  51         public static void update(WriteGraph graph, final Resource source) throws DatabaseException {
  52
  53                 IssueResource ISSUE = IssueResource.getInstance(graph);
  54
  55                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);
  56                 if(revisionId == null) revisionId = 0L;
  57
  58                 ManagementSupport support = graph.getService(ManagementSupport.class);
  59                 final long headRevision = support.getHeadRevisionId()+1;
  60
  61                 if(revisionId < headRevision) {
  62                         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);
  63                 VirtualGraph vg = vgs.getWorkspacePersistent(IssueConstants.ISSUE_VG);
  64                 graph.syncRequest(new WriteRequest(vg) {
  65
  66                                 @Override
  67                                 public void perform(WriteGraph graph) throws DatabaseException {
  68                                         IssueResource ISSUE = IssueResource.getInstance(graph);
  69                                         graph.claimLiteral(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, headRevision, Bindings.LONG);
  70                                         if(DEBUG)
  71                                                 System.err.println("-update[" + NameUtils.getSafeName(graph, source) + "][" + headRevision + "]");
  72                                 }
  73
  74                         });
  75                 }
  76
  77         }
  78
  79         public static boolean hasChanges(ReadGraph graph, DependencyChanges event, Resource root, Resource from) throws DatabaseException {
  80                 Change[] changes = event.get(root);
  81                 if(changes == null) return false;
  82                 for(Change c : changes) {
  83                         if(c instanceof ComponentAddition) {
  84                                 return true;
  85                         } else if(c instanceof ComponentRemoval) {
  86                                 return true;
  87                         } else if(c instanceof ComponentModification) {
  88                                 return true;
  89                         }
  90                 }
  91                 return false;
  92         }
  93
  94     public static class Test3 extends BinaryRead<Resource, ResourceSet, Collection<Resource>> {
  95
  96         public Test3(Resource component, ResourceSet types) {
  97             super(component, types);
  98         }
  99
 100         @Override
 101         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
 102             ResourceSetGraph rsg = graph.syncRequest(new DependentInstances3(parameter), TransientCacheListener.<ResourceSetGraph>instance());
 103                 return rsg.resolve(graph, parameter2);
 104         }
 105
 106     };
 107
 108         private static void test(ReadGraph graph, Resource component, ResourceSet types, Collection<Resource> result) throws DatabaseException {
 109                 Collection<Resource> data = graph.syncRequest(new Test3(component, types), TransientCacheAsyncListener.<Collection<Resource>>instance());
 110                 if(DEBUG_RESOURCES) {
 111                         for(Resource r : data) {
 112                                 System.err.println("IssueSourceUtils.test " + " " + NameUtils.getSafeName(graph, component) + " " + NameUtils.getSafeName(graph, types) + " " + NameUtils.getSafeName(graph, r));
 113                         }
 114                 }
 115                 result.addAll(data);
 116         }
 117
 118         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource model, Resource from, Set<Resource> types, DependencyChanges event) throws DatabaseException {
 119
 120                 Change[] changes = event.get(model);
 121                 if(changes == null) return Collections.emptySet();
 122
 123                 CollectionSupport cs = graph.getService(CollectionSupport.class);
 124                 ResourceSet typeSet = cs.getResourceSet(graph, types);
 125
 126                 Set<Resource> result = new HashSet<Resource>();
 127                 for(Change c : changes) {
 128                         processChange(graph, c, typeSet, result);
 129                 }
 130
 131                 return result;
 132
 133         }
 134
 135         public static void processChange(ReadGraph graph, Change c, ResourceSet types, Set<Resource> result) throws DatabaseException {
 136                 if(DEBUG_CHANGE_ENTRIES)
 137                         System.err.println("-processChange: " + c.toString(graph));
 138                 if(c instanceof ComponentAddition) {
 139                         ComponentAddition addition = (ComponentAddition)c;
 140                         test(graph, addition.component, types, result);
 141                 } else if(c instanceof ComponentRemoval) {
 142                         ComponentRemoval removal = (ComponentRemoval)c;
 143                         result.add(removal.component);
 144                 } else if(c instanceof ComponentModification) {
 145                         ComponentModification modification = (ComponentModification)c;
 146                         test(graph, modification.component, types, result);
 147                 }
 148
 149         }
 150
 151         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource source, Resource model, Resource from, Set<Resource> types) throws DatabaseException {
 152
 153                 IssueResource ISSUE = IssueResource.getInstance(graph);
 154
 155                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);
 156                 if(revisionId == null) revisionId = 0L;
 157
 158                 if(DEBUG)
 159                         System.err.println("getChangedDependencies[" + NameUtils.getSafeName(graph, source) + "][" + revisionId + "]");
 160
 161                 Map<Resource, Collection<Change>> index = MetadataUtils.getDependencyChangesFrom(graph, revisionId+1);
 162
 163                 CollectionSupport cs = graph.getService(CollectionSupport.class);
 164                 ResourceSet typeSet = cs.getResourceSet(graph, types);
 165
 166                 Collection<Change> modelChanges = index.get(model);
 167                 if(modelChanges == null) return Collections.emptySet();
 168
 169                 Set<Resource> result = new HashSet<Resource>();
 170                 for(Change c : modelChanges) {
 171                         processChange(graph, c, typeSet, result);
 172                 }
 173
 174                 return result;
 175
 176         }
 177
 178 }