bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/MigrationSequence.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 java.util.ArrayList;\r
  15 import java.util.List;\r
  16 \r
  17 import org.eclipse.core.runtime.IProgressMonitor;\r
  18 import org.simantics.db.ReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.Session;\r
  21 import org.simantics.db.common.utils.ListUtils;\r
  22 import org.simantics.db.exception.DatabaseException;\r
  23 import org.simantics.utils.logging.TimeLogger;\r
  24 \r
  25 public class MigrationSequence implements MigrationStep {\r
  26         \r
  27         final List<MigrationStep> steps;\r
  28         \r
  29         public MigrationSequence(ReadGraph graph, Resource sequence) throws DatabaseException {\r
  30                 steps = new ArrayList<MigrationStep>();\r
  31                 for(Resource step : ListUtils.toList(graph, sequence)) {\r
  32                         MigrationStep ms = graph.adapt(step, MigrationStep.class);\r
  33                         steps.add(ms);\r
  34                 }\r
  35         }\r
  36 \r
  37         @Override\r
  38         public void applyTo(IProgressMonitor monitor, Session session, MigrationState state) throws DatabaseException {\r
  39                 TimeLogger.resetTimeAndLog(getClass(), "Running migration sequence");\r
  40                 for(MigrationStep step : steps) {\r
  41                         if(monitor.isCanceled()) return;\r
  42                         TimeLogger.log(getClass(), "Running migration step: " + step.getClass() + " (" + step + ")");\r
  43                         step.applyTo(monitor, session, state);\r
  44                         if (monitor.isCanceled()) {\r
  45                                 TimeLogger.log(getClass(), "Migration cancelled during step: " + step.getClass() + " (" + step + ")");\r
  46                                 return;\r
  47                         }\r
  48                         monitor.subTask("");\r
  49                         TimeLogger.log(getClass(), "Completed migration step: " + step.getClass() + " (" + step + ")");\r
  50                 }\r
  51         }\r
  52 \r
  53 }\r