bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/NamespaceMigrationStep.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * 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.db.layer0.migration;\r
  13 \r
  14 import gnu.trove.set.hash.TIntHashSet;\r
  15 \r
  16 import java.util.ArrayList;\r
  17 \r
  18 import org.eclipse.core.runtime.IProgressMonitor;\r
  19 import org.simantics.databoard.Bindings;\r
  20 import org.simantics.db.ReadGraph;\r
  21 import org.simantics.db.Resource;\r
  22 import org.simantics.db.Session;\r
  23 import org.simantics.db.common.utils.ListUtils;\r
  24 import org.simantics.db.exception.DatabaseException;\r
  25 import org.simantics.graph.query.Path;\r
  26 import org.simantics.graph.query.TransferableGraphConversion;\r
  27 import org.simantics.graph.query.UriUtils;\r
  28 import org.simantics.graph.refactoring.GraphRefactoringException;\r
  29 import org.simantics.graph.refactoring.GraphRefactoringUtils;\r
  30 import org.simantics.graph.refactoring.MappingSpecification;\r
  31 import org.simantics.graph.refactoring.MappingSpecification.MappingRule;\r
  32 import org.simantics.graph.representation.TransferableGraph1;\r
  33 import org.simantics.graph.store.IdentityStore;\r
  34 import org.simantics.layer0.Layer0;\r
  35 \r
  36 public class NamespaceMigrationStep implements MigrationStep {\r
  37         \r
  38     final ArrayList<MappingRule> rules;\r
  39     \r
  40         public NamespaceMigrationStep(ReadGraph graph, Resource step) throws DatabaseException {\r
  41                 rules = new ArrayList<MappingRule>();\r
  42                 Layer0 L0 = Layer0.getInstance(graph);\r
  43                 for(Resource prefix : ListUtils.toList(graph, step)) {\r
  44                         String base = graph.getPossibleRelatedValue(prefix, L0.NamespaceMigrationStep_Prefix_base, Bindings.STRING);\r
  45                         String from = graph.getPossibleRelatedValue(prefix, L0.NamespaceMigrationStep_Prefix_from, Bindings.STRING);\r
  46                         String to = graph.getPossibleRelatedValue(prefix, L0.NamespaceMigrationStep_Prefix_to, Bindings.STRING);\r
  47                         if(from != null && to != null) {\r
  48                                 Path fromURI = UriUtils.uriToPath(base+from);\r
  49                                 Path toURI = UriUtils.uriToPath(base+to);\r
  50                                 if(fromURI != null && toURI != null)\r
  51                                         rules.add(new MappingRule(fromURI, toURI));\r
  52                                 else\r
  53                                         System.err.println("Namespace migration uri formation error: base " + base + " from " + from + " to " + to);\r
  54                         }\r
  55                 }\r
  56         }\r
  57 \r
  58     @Override\r
  59     public void applyTo(IProgressMonitor monitor, Session session, MigrationState state) throws DatabaseException {\r
  60         \r
  61         TransferableGraph1 tg = MigrationUtils.getTG(session, state); \r
  62                 \r
  63         try {\r
  64             MappingSpecification mappingSpec = new MappingSpecification(rules);\r
  65             boolean fixed = GraphRefactoringUtils.fixIncorrectRoot(tg.identities);\r
  66             System.err.println("fixed=" + fixed);\r
  67             IdentityStore idStore = TransferableGraphConversion.extractIdentities(tg);\r
  68             idStore.printChildMap();\r
  69 //            System.err.println("ids: " + idStore);\r
  70 //            System.err.println("rc: " + tg.resourceCount);\r
  71 //            System.err.println("idStore: " + idStore.toArray().length);\r
  72             TIntHashSet parentsAffected = new TIntHashSet(); \r
  73             GraphRefactoringUtils.refactor(tg, idStore, mappingSpec, parentsAffected);\r
  74 //\r
  75             tg.resourceCount = idStore.getResourceCount();\r
  76             \r
  77             tg.identities = idStore.toArray();\r
  78 \r
  79             if(fixed)\r
  80                 GraphRefactoringUtils.unfixIncorrectRoot(tg.identities);\r
  81 \r
  82             System.err.println("rc2: " + tg.resourceCount);\r
  83 //            System.err.println("idStore2: " + idStore.toArray().length);\r
  84 \r
  85         } catch (GraphRefactoringException e) {\r
  86             e.printStackTrace();\r
  87         }\r
  88         \r
  89     }\r
  90     \r
  91 }\r