bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/collections/ContextualList.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in 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.layer0.utils.collections;\r
  13 \r
  14 import java.util.Collection;\r
  15 \r
  16 import org.simantics.db.ReadGraph;\r
  17 import org.simantics.db.Resource;\r
  18 import org.simantics.db.common.utils.OrderedSetUtils;\r
  19 import org.simantics.db.exception.DatabaseException;\r
  20 import org.simantics.operation.OperationResource;\r
  21 import org.simantics.utils.datastructures.persistent.IContextMap;\r
  22 \r
  23 public class ContextualList implements IContextualList {\r
  24 \r
  25         Object[] list;\r
  26         \r
  27         public ContextualList(ReadGraph g, Resource r) throws DatabaseException {\r
  28                 list = OrderedSetUtils.toList(g, r).toArray();\r
  29                 OperationResource OP = OperationResource.getInstance(g);\r
  30                 for(int i=0;i<list.length;++i) {\r
  31                         Resource e = (Resource)list[i];\r
  32                         if(g.isInstanceOf(e, OP.AbstractContextualList)) {\r
  33                                 list[i] = g.adapt(e, IContextualList.class);\r
  34                         }\r
  35                 }\r
  36         }\r
  37 \r
  38         @Override\r
  39         public void fill(ReadGraph g, IContextMap parameters, Collection<Resource> c) throws DatabaseException {\r
  40                 for(Object obj : list) {\r
  41                         if(obj instanceof Resource)\r
  42                                 c.add((Resource)obj);\r
  43                         else\r
  44                                 ((IContextualList)obj).fill(g, parameters, c);\r
  45                 }\r
  46         }\r
  47 \r
  48         \r
  49 }\r