1 /*
2 * The contents of this file are subject to the BT "ZEUS" Open Source
3 * Licence (L77741), Version 1.0 (the "Licence"); you may not use this file
4 * except in compliance with the Licence. You may obtain a copy of the Licence
5 * from $ZEUS_INSTALL/licence.html or alternatively from
6 * http://www.labs.bt.com/projects/agents/zeus/licence.htm
7 *
8 * Except as stated in Clause 7 of the Licence, software distributed under the
9 * Licence is distributed WITHOUT WARRANTY OF ANY KIND, either express or
10 * implied. See the Licence for the specific language governing rights and
11 * limitations under the Licence.
12 *
13 * The Original Code is within the package zeus.*.
14 * The Initial Developer of the Original Code is British Telecommunications
15 * public limited company, whose registered office is at 81 Newgate Street,
16 * London, EC1A 7AJ, England. Portions created by British Telecommunications
17 * public limited company are Copyright 1996-9. All Rights Reserved.
18 *
19 * THIS NOTICE MUST BE INCLUDED ON ANY COPY OF THIS FILE
20 */
21
22
23 package zeus.rete.action;
24 import zeus.rete.*;
25 import zeus.concepts.*;
26 import zeus.concepts.fn.*;
27 import zeus.actors.*;
28 import java.util.*;
29 import zeus.util.*;
30
31 /***
32
33 @author Simon Thompson
34 @since 1.1
35 */
36 public class AssertAction extends ReteAction {
37
38 /***
39 Asserts a fact into the ResourceDb
40 */
41 public void executeAction (Action a, Info info) {
42 ReteFact token = (ReteFact)a.head;
43 OntologyDb ont = getOntologyDb();
44 String type = token.getType();
45 Fact f1 = ont.getFact(Fact.FACT,type);
46
47 Enumeration enum = token.data.keys();
48 while( enum.hasMoreElements() ) {
49 String attribute = (String)enum.nextElement();
50 ValueFunction value = (ValueFunction)token.data.get(attribute);
51 f1.setValue(attribute,value);
52 }
53 Bindings bind = info.getBindings();
54 Assert.notFalse(f1.resolve(bind));
55 Core.DEBUG(2," ==> " + f1);
56 conflictHandler.assertFact(f1);
57 }
58
59
60 }