bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/service/impl/ActivationManagerImpl.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.db.layer0.service.impl;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16
  17 import org.simantics.db.Disposable;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.RequestProcessor;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.Session;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.layer0.adapter.Activation;
  24 import org.simantics.db.layer0.service.ActivationManager;
  25 import org.simantics.db.request.Read;
  26 import org.simantics.layer0.Layer0;
  27 import org.simantics.operation.Layer0X;
  28 import org.simantics.utils.threads.logger.IThreadLogger;
  29 import org.simantics.utils.threads.logger.ThreadLogger;
  30
  31 public class ActivationManagerImpl implements ActivationManager, Disposable {
  32
  33     Session session;
  34     static IThreadLogger threadLogger = ThreadLogger.getInstance();
  35
  36     public ActivationManagerImpl(Session session) {
  37         this.session = session;
  38     }
  39
  40     @Override
  41     public Collection<Activation> activate(RequestProcessor processor, final Resource r) throws DatabaseException {
  42
  43         return processor.syncRequest(new Read<Collection<Activation>>() {
  44
  45             @Override
  46             public Collection<Activation> perform(ReadGraph graph) throws DatabaseException {
  47                 Layer0 l0 = Layer0.getInstance(graph);
  48                 Layer0X L0X = Layer0X.getInstance(graph);
  49                 ArrayList<Activation> result = new ArrayList<Activation>();
  50                 for(Resource activation : graph.getObjects(r, L0X.HasActivation)) {
  51                     Activation a = graph.adapt(activation, Activation.class);
  52                     a.activate(graph, r);
  53                     result.add(a);
  54                 }
  55                 return result;
  56             }
  57
  58         });
  59
  60     }
  61
  62     @Override
  63     public void dispose() {
  64         session = null;
  65     }
  66
  67 }