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[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / request / MappedTypedParts.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.db.common.request;\r
13 \r
14 import java.util.HashMap;\r
15 import java.util.Map;\r
16 \r
17 import org.simantics.db.ReadGraph;\r
18 import org.simantics.db.Resource;\r
19 import org.simantics.db.exception.DatabaseException;\r
20 import org.simantics.layer0.Layer0;\r
21 import org.simantics.operation.Layer0X;\r
22 \r
23 public class MappedTypedParts extends ResourceRead2<Map<Resource, Resource>> {\r
24 \r
25     public MappedTypedParts(Resource realization, Resource type) {\r
26         super(realization, type);\r
27     }\r
28     \r
29     @Override\r
30     public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {\r
31         \r
32         Layer0 l0 = Layer0.getInstance(graph);\r
33         Layer0X L0X = Layer0X.getInstance(graph);\r
34         Map<Resource, Resource> result = new HashMap<Resource, Resource>();\r
35         \r
36         for(Resource part : graph.syncRequest(new ObjectsWithType(resource, l0.ConsistsOf, resource2))) {\r
37                 Resource represents = graph.getPossibleObject(part, L0X.Represents);\r
38                 if(represents != null) result.put(represents, part);\r
39         }\r
40         \r
41         return result;\r
42         \r
43     }\r
44 \r
45 }\r