bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/collections/ContextualList.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.layer0.utils.collections;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.common.utils.OrderedSetUtils;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.operation.OperationResource;
  21 import org.simantics.utils.datastructures.persistent.IContextMap;
  22
  23 public class ContextualList implements IContextualList {
  24
  25         Object[] list;
  26
  27         public ContextualList(ReadGraph g, Resource r) throws DatabaseException {
  28                 list = OrderedSetUtils.toList(g, r).toArray();
  29                 OperationResource OP = OperationResource.getInstance(g);
  30                 for(int i=0;i<list.length;++i) {
  31                         Resource e = (Resource)list[i];
  32                         if(g.isInstanceOf(e, OP.AbstractContextualList)) {
  33                                 list[i] = g.adapt(e, IContextualList.class);
  34                         }
  35                 }
  36         }
  37
  38         @Override
  39         public void fill(ReadGraph g, IContextMap parameters, Collection<Resource> c) throws DatabaseException {
  40                 for(Object obj : list) {
  41                         if(obj instanceof Resource)
  42                                 c.add((Resource)obj);
  43                         else
  44                                 ((IContextualList)obj).fill(g, parameters, c);
  45                 }
  46         }
  47
  48
  49 }