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Java > Open Source Codes > jena > examples > rdf > Tutorial09


1 /*
2  * (c) Copyright 2003, 2004, Hewlett-Packard Development Company, LP
3  * All rights reserved.
4  * [See end of file]
5  * $Id: Tutorial09.java,v 1.1 2005/03/12 13:52:28 andy_seaborne Exp $
6  */
7 package jena.examples.rdf ;
8
9 import com.hp.hpl.jena.rdf.model.*;
10 import com.hp.hpl.jena.util.FileManager;
11
12 import java.io.*;
13
14 /** Tutorial 9 - demonstrate graph operations
15  *
16  * @author bwm - updated by kers/Daniel
17  * @version Release='$Name: $' Revision='$Revision: 1.1 $' Date='$Date: 2005/03/12 13:52:28 $'
18  */
19 public class Tutorial09 extends Object JavaDoc {
20     
21     static final String JavaDoc inputFileName1 = "vc-db-3.rdf";
22     static final String JavaDoc inputFileName2 = "vc-db-4.rdf";
23     
24     public static void main (String JavaDoc args[]) {
25         // create an empty model
26 Model model1 = ModelFactory.createDefaultModel();
27         Model model2 = ModelFactory.createDefaultModel();
28        
29         // use the class loader to find the input file
30 InputStream in1 = FileManager.get().open(inputFileName1);
31         if (in1 == null) {
32             throw new IllegalArgumentException JavaDoc( "File: " + inputFileName1 + " not found");
33         }
34         InputStream in2 = FileManager.get().open(inputFileName2);
35         if (in2 == null) {
36             throw new IllegalArgumentException JavaDoc( "File: " + inputFileName2 + " not found");
37         }
38         
39         // read the RDF/XML files
40 model1.read( in1, "" );
41         model2.read( in2, "" );
42         
43         // merge the graphs
44 Model model = model1.union(model2);
45         
46         // print the graph as RDF/XML
47 model.write(System.out, "RDF/XML-ABBREV");
48         System.out.println();
49     }
50 }
51
52 /*
53  * (c) Copyright 2003, 2004 Hewlett-Packard Development Company, LP
54  * All rights reserved.
55  *
56  * Redistribution and use in source and binary forms, with or without
57  * modification, are permitted provided that the following conditions
58  * are met:
59  * 1. Redistributions of source code must retain the above copyright
60  * notice, this list of conditions and the following disclaimer.
61  * 2. Redistributions in binary form must reproduce the above copyright
62  * notice, this list of conditions and the following disclaimer in the
63  * documentation and/or other materials provided with the distribution.
64  * 3. The name of the author may not be used to endorse or promote products
65  * derived from this software without specific prior written permission.
66  *
67  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
68  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
69  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
70  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
71  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
72  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
73  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
74  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
75  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
76  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
77  */
78
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