]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/InstantiateRequest.java
Merge "Allow loading databoard serialized files with type adapting" into release...
[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / request / InstantiateRequest.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.request;
13
14 import java.util.Collection;
15 import java.util.Map;
16
17 import org.simantics.db.Resource;
18 import org.simantics.db.WriteGraph;
19 import org.simantics.db.common.utils.CommonDBUtils;
20 import org.simantics.db.exception.DatabaseException;
21 import org.simantics.layer0.Layer0;
22
23 /**
24  * Instantiates given type using templates attached to the type.
25  * @author Hannu Niemistö
26  */
27 public class InstantiateRequest extends ApplyTemplatesRequest {
28         Resource type;
29         
30         public InstantiateRequest(Resource type, Map<String, Object> parameters,
31                         Collection<Resource> contexts) {
32                 super(parameters, contexts);
33                 this.type = type;
34         }
35         
36         public InstantiateRequest(Resource type, Map<String, Object> parameters) {
37                 super(parameters);
38                 this.type = type;
39         }
40         
41         public InstantiateRequest(Resource type) {
42                 super();
43                 this.type = type;
44         }
45
46         public Resource perform(WriteGraph g) throws DatabaseException {
47         Layer0 b = Layer0.getInstance(g);
48         
49         Resource parent = (Resource)parameters.get("parent");
50         if(parent != null) CommonDBUtils.selectClusterSet(g, parent);
51         
52                 // Default instantiation logic
53                 Resource instance = g.newResource();
54                 g.newClusterSet(instance);
55                 g.claim(instance, b.InstanceOf, null, type);
56                 
57                 perform(g, instance);
58                 
59                 return instance;
60         }
61 }