bundles/org.simantics.scenegraph.profile/src/org/simantics/scenegraph/profile/request/ProfileEntryResources.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.scenegraph.profile.request;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.HashSet;
  17 import java.util.List;
  18
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.common.request.ResourceRead2;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.diagram.stubs.DiagramResource;
  24 import org.simantics.scenegraph.profile.ProfileUtils;
  25
  26 /**
  27  * @author Tuukka Lehtonen
  28  */
  29 public class ProfileEntryResources extends ResourceRead2<Collection<Resource>> {
  30
  31     protected DiagramResource DIA;
  32
  33     public ProfileEntryResources(Resource profile, Resource entry) {
  34         super(profile, entry);
  35     }
  36
  37     protected boolean test(ReadGraph graph, Resource activeProfile, Resource entry) throws DatabaseException {
  38         return true;
  39     }
  40
  41     public List<Resource> process(ReadGraph graph, Resource activeProfile, Resource item, List<Resource> result, HashSet<Resource> visited) throws DatabaseException {
  42         List<Resource> entries = ProfileUtils.getProfileChildrenFromEntries(graph, item);
  43         for (Resource entry : entries) {
  44                 Resource children = graph.getPossibleObject(entry, DIA.HasEntries);
  45             if (children != null) {
  46                 process(graph, activeProfile, children, result, visited);
  47             } else {
  48                 if (test(graph, activeProfile, entry)) {
  49                     if (!visited.contains(entry)) {
  50                         result.add(entry);
  51                         visited.add(entry);
  52                     }
  53                 }
  54             }
  55         }
  56
  57         return result;
  58     }
  59
  60     @Override
  61     public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
  62         this.DIA = DiagramResource.getInstance(graph);
  63         return process(graph, resource, resource2, new ArrayList<Resource>(), new HashSet<Resource>());
  64     }
  65
  66 }