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 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class IssueSourceUtils {
  48
  49     private static final Logger LOGGER = LoggerFactory.getLogger(IssueSourceUtils.class);
  50         public static final boolean DEBUG = false;
  51         public static final boolean DEBUG_CHANGE_ENTRIES = false;
  52         public static final boolean DEBUG_RESOURCES = false;
  53
  54         public static void update(WriteGraph graph, final Resource source) throws DatabaseException {
  55
  56                 IssueResource ISSUE = IssueResource.getInstance(graph);
  57
  58                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);
  59                 if(revisionId == null) revisionId = 0L;
  60
  61                 ManagementSupport support = graph.getService(ManagementSupport.class);
  62                 final long headRevision = support.getHeadRevisionId()+1;
  63
  64                 if(revisionId < headRevision) {
  65                         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);
  66                 VirtualGraph vg = vgs.getWorkspacePersistent(IssueConstants.ISSUE_VG);
  67                 graph.syncRequest(new WriteRequest(vg) {
  68
  69                                 @Override
  70                                 public void perform(WriteGraph graph) throws DatabaseException {
  71                                         IssueResource ISSUE = IssueResource.getInstance(graph);
  72                                         graph.claimLiteral(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, headRevision, Bindings.LONG);
  73                                         if(DEBUG)
  74                                                 LOGGER.info("-update[" + NameUtils.getSafeName(graph, source) + "][" + headRevision + "]");
  75                                 }
  76
  77                         });
  78                 }
  79
  80         }
  81
  82         public static boolean hasChanges(ReadGraph graph, DependencyChanges event, Resource root, Resource from) throws DatabaseException {
  83                 Change[] changes = event.get(root);
  84                 if(changes == null) return false;
  85                 for(Change c : changes) {
  86                         if(c instanceof ComponentAddition) {
  87                                 return true;
  88                         } else if(c instanceof ComponentRemoval) {
  89                                 return true;
  90                         } else if(c instanceof ComponentModification) {
  91                                 return true;
  92                         }
  93                 }
  94                 return false;
  95         }
  96
  97     public static class Test3 extends BinaryRead<Resource, ResourceSet, Collection<Resource>> {
  98
  99         public Test3(Resource component, ResourceSet types) {
 100             super(component, types);
 101         }
 102
 103         @Override
 104         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
 105             ResourceSetGraph rsg = graph.syncRequest(new DependentInstances3(parameter), TransientCacheListener.<ResourceSetGraph>instance());
 106                 return rsg.resolve(graph, parameter2);
 107         }
 108
 109     };
 110
 111         private static void test(ReadGraph graph, Resource component, ResourceSet types, Collection<Resource> result) throws DatabaseException {
 112                 Collection<Resource> data = graph.syncRequest(new Test3(component, types), TransientCacheAsyncListener.<Collection<Resource>>instance());
 113                 if(DEBUG_RESOURCES) {
 114                         for(Resource r : data) {
 115                                 LOGGER.info("IssueSourceUtils.test " + " " + NameUtils.getSafeName(graph, component) + " " + NameUtils.getSafeName(graph, types) + " " + NameUtils.getSafeName(graph, r));
 116                         }
 117                 }
 118                 result.addAll(data);
 119         }
 120
 121         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource model, Resource from, Set<Resource> types, DependencyChanges event) throws DatabaseException {
 122
 123                 Change[] changes = event.get(model);
 124                 if(changes == null) return Collections.emptySet();
 125
 126                 CollectionSupport cs = graph.getService(CollectionSupport.class);
 127                 ResourceSet typeSet = cs.getResourceSet(graph, types);
 128
 129                 Set<Resource> result = new HashSet<Resource>();
 130                 for(Change c : changes) {
 131                         processChange(graph, c, typeSet, result);
 132                 }
 133
 134                 return result;
 135
 136         }
 137
 138         public static void processChange(ReadGraph graph, Change c, ResourceSet types, Set<Resource> result) throws DatabaseException {
 139                 if(DEBUG_CHANGE_ENTRIES)
 140                         LOGGER.info("-processChange: " + c.toString(graph));
 141                 if(c instanceof ComponentAddition) {
 142                         ComponentAddition addition = (ComponentAddition)c;
 143                         test(graph, addition.component, types, result);
 144                 } else if(c instanceof ComponentRemoval) {
 145                         ComponentRemoval removal = (ComponentRemoval)c;
 146                         result.add(removal.component);
 147                 } else if(c instanceof ComponentModification) {
 148                         ComponentModification modification = (ComponentModification)c;
 149                         test(graph, modification.component, types, result);
 150                 }
 151
 152         }
 153
 154         public static Set<Resource> getChangedDependencies(ReadGraph graph, Resource source, Resource model, Resource from, Set<Resource> types) throws DatabaseException {
 155
 156                 IssueResource ISSUE = IssueResource.getInstance(graph);
 157
 158                 Long revisionId = graph.getPossibleRelatedValue(source, ISSUE.ContinuousIssueSource_lastUpdateRevision, Bindings.LONG);
 159                 if(revisionId == null) revisionId = 0L;
 160
 161                 if(DEBUG)
 162                         LOGGER.info("getChangedDependencies[" + NameUtils.getSafeName(graph, source) + "][" + revisionId + "]");
 163
 164                 Map<Resource, Collection<Change>> index = MetadataUtils.getDependencyChangesFrom(graph, revisionId+1);
 165
 166                 CollectionSupport cs = graph.getService(CollectionSupport.class);
 167                 ResourceSet typeSet = cs.getResourceSet(graph, types);
 168
 169                 Collection<Change> modelChanges = index.get(model);
 170                 if(modelChanges == null) return Collections.emptySet();
 171
 172                 Set<Resource> result = new HashSet<Resource>();
 173                 for(Change c : modelChanges) {
 174                         processChange(graph, c, typeSet, result);
 175                 }
 176
 177                 return result;
 178
 179         }
 180
 181 }