1 /*
2 wsmo4j - a WSMO API and Reference Implementation
3 Copyright (c) 2005, University of Innsbruck, Austria
4 This library is free software; you can redistribute it and/or modify it under
5 the terms of the GNU Lesser General Public License as published by the Free
6 Software Foundation; either version 2.1 of the License, or (at your option)
7 any later version.
8 This library is distributed in the hope that it will be useful, but WITHOUT
9 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
10 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
11 details.
12 You should have received a copy of the GNU Lesser General Public License along
13 with this library; if not, write to the Free Software Foundation, Inc.,
14 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16 package org.deri.wsmo4j.io.serializer.wsml;
17
18
19 import org.deri.wsmo4j.io.parser.wsml.LogExprParserImpl;
20 import org.deri.wsmo4j.logicalexpression.LogicalExpressionImpl;
21 import org.omwg.logicalexpression.*;
22 import org.wsmo.common.*;
23
24
25 /**
26 * This class is used to serialize logical expressions to WSML.
27 * @author retkru hollau
28 * @see org.omwg.logicalexpression.io.Serializer
29 */
30 public class LogExprSerializerWSML{
31
32 private VisitorSerializeWSML wsml;
33 private TopEntity container = null;
34
35 /**
36 * @param container TopEntity
37 */
38 public LogExprSerializerWSML(TopEntity container) {
39 this.container=container;
40 wsml = new VisitorSerializeWSML(container);
41 }
42
43 /**
44 * @param logExpr Logical expression object model to be serialized
45 * @return serialized String object
46 * @see org.omwg.logicalexpression.io.Serializer#serialize(org.omwg.logicalexpression.LogicalExpression)
47 */
48 public String serialize(LogicalExpression logExpr) {
49 logExpr.accept(wsml);
50 if (!(logExpr instanceof LogicalExpressionImpl)){
51 return wsml.getSerializedObject() + ". ";
52 }
53 LogicalExpressionImpl logExprImpl = (LogicalExpressionImpl)logExpr;
54 String originalLE = logExprImpl.getStringRepresentation();
55 if (originalLE==null){
56 return wsml.getSerializedObject() + ". ";
57 }
58 try{
59 LogExprParserImpl p = new LogExprParserImpl(null,container);
60 LogicalExpression leFromOrgExpr =p.parse(originalLE);
61 if (leFromOrgExpr.equals(logExpr)){
62 //nice we can safe the old style of the LE
63 return originalLE;
64 }
65 }catch (Throwable e){
66 //OK we take the serializer version
67 //e.printStackTrace();
68 }
69 return wsml.getSerializedObject() + ". ";
70 }
71
72 }