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1   /*
2    * Copyright (c) 2007, James Leigh All rights reserved.
3    * 
4    * Redistribution and use in source and binary forms, with or without
5    * modification, are permitted provided that the following conditions are met:
6    * 
7    * - Redistributions of source code must retain the above copyright notice, this
8    *   list of conditions and the following disclaimer.
9    * - Redistributions in binary form must reproduce the above copyright notice,
10   *   this list of conditions and the following disclaimer in the documentation
11   *   and/or other materials provided with the distribution. 
12   * - Neither the name of the openrdf.org nor the names of its contributors may
13   *   be used to endorse or promote products derived from this software without
14   *   specific prior written permission.
15   * 
16   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26   * POSSIBILITY OF SUCH DAMAGE.
27   * 
28   */
29  package org.openrdf.elmo.sesame.converters.impl;
30  
31  import java.math.BigDecimal;
32  import java.sql.Timestamp;
33  import java.util.GregorianCalendar;
34  
35  import javax.xml.datatype.DatatypeConfigurationException;
36  import javax.xml.datatype.DatatypeFactory;
37  import javax.xml.datatype.XMLGregorianCalendar;
38  
39  import org.openrdf.elmo.sesame.converters.Marshall;
40  import org.openrdf.model.Literal;
41  import org.openrdf.model.URI;
42  import org.openrdf.model.ValueFactory;
43  import org.openrdf.model.impl.URIImpl;
44  
45  public class SqlTimestampMarshall implements Marshall<Timestamp> {
46  	private static final URI DATATYPE = new URIImpl("java:"
47  			+ Timestamp.class.getName());
48  
49  	private ValueFactory vf;
50  
51  	private DatatypeFactory factory;
52  
53  	private URI datatype = DATATYPE;
54  
55  	public SqlTimestampMarshall(ValueFactory vf)
56  			throws DatatypeConfigurationException {
57  		this.vf = vf;
58  		factory = DatatypeFactory.newInstance();
59  	}
60  
61  	public Class<Timestamp> getJavaClass() {
62  		return Timestamp.class;
63  	}
64  
65  	public URI getDatatype() {
66  		return datatype;
67  	}
68  
69  	public void setDatatype(URI datatype) {
70  		this.datatype = datatype;
71  	}
72  
73  	public Timestamp deserialize(Literal literal) {
74  		String label = literal.getLabel();
75  		XMLGregorianCalendar gc = factory.newXMLGregorianCalendar(label);
76  		return new Timestamp(gc.toGregorianCalendar().getTimeInMillis());
77  	}
78  
79  	public Literal serialize(Timestamp object) {
80  		GregorianCalendar gc = new GregorianCalendar(0, 0, 0);
81  		gc.setTime(object);
82  		XMLGregorianCalendar xgc = factory.newXMLGregorianCalendar(gc);
83  		BigDecimal fraction = BigDecimal.valueOf(object.getNanos(), 9);
84  		xgc.setFractionalSecond(fraction);
85  		String label = xgc.toXMLFormat();
86  		return vf.createLiteral(label, datatype);
87  	}
88  
89  }