[3548] | 1 | /*
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| 2 | * XMLUtil.java
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| 3 | * Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 18 | */
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| 19 | package org.greenstone.gsdl3.selfContained;
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| 20 |
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| 21 | // XML classes
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| 22 | import javax.xml.parsers.DocumentBuilder;
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| 23 | import javax.xml.parsers.DocumentBuilderFactory;
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| 24 | import org.apache.xerces.parsers.DOMParser;
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| 25 |
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| 26 | // other java classes
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| 27 | import java.io.IOException;
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| 28 |
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| 29 |
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| 30 | /**
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| 31 | * Class XMLUtil holds static global XML configuration objects.
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| 32 | *
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| 33 | * @author <a href="http://www.cs.waikato.ac.nz/~say1/">stuart yeates</a> (<a href="mailto:[email protected]">s
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| 34 | [email protected]</a>) at the <a href="http://www.nzdl.org">New Zealand Digital Library</a>
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| 35 | * @version $Revision: 3548 $
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| 36 | * @see blank
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| 37 | *
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| 38 | */
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| 39 | class XMLUtil {
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| 40 |
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| 41 | /** the singleton instance */
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| 42 | protected static XMLUtil instance = null;
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| 43 |
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| 44 |
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| 45 | /** JAXP parser factory */
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| 46 | protected DocumentBuilderFactory doc_build_fact=null;
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| 47 |
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| 48 | /** JAXP parser factory */
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| 49 | static public DocumentBuilderFactory getDocumentBuilderFactory() {
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| 50 | if (instance == null)
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| 51 | init();
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| 52 | return instance.doc_build_fact;
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| 53 | }
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| 54 |
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| 55 | /** JAXP parser */
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| 56 | protected DocumentBuilder doc_builder=null;
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| 57 |
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| 58 | /** JAXP parser */
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| 59 | static public DocumentBuilder getDocumentBuilder() {
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| 60 | if (instance == null)
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| 61 | init();
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| 62 | return instance.doc_builder;
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| 63 | }
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| 64 |
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| 65 | /** xerces parser */
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| 66 | protected DOMParser parser = null;
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| 67 |
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| 68 | /** xerces parser */
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| 69 | static public DOMParser getDOMParser() {
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| 70 | if (instance == null)
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| 71 | init();
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| 72 | return instance.parser;
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| 73 | }
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| 74 |
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| 75 | /** initalise the statics */
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| 76 | static protected void init() {
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| 77 | instance = new XMLUtil();
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| 78 | try {
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| 79 | instance.doc_build_fact = DocumentBuilderFactory.newInstance();
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| 80 |
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| 81 | instance.doc_builder = instance.doc_build_fact.newDocumentBuilder();
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| 82 | instance.parser = new DOMParser();
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| 83 | } catch (Exception e) {
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| 84 | System.out.println("XMLConverter:exception "+e.getMessage());
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| 85 | }
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| 86 | }
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| 87 |
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| 88 | /**
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| 89 | * Checks that the objects can be instantiated
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| 90 | *
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| 91 | */
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| 92 | public static void main(String args[]) throws IOException
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| 93 | {
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| 94 | XMLUtil.getDOMParser();
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| 95 | }
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| 96 | }
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| 97 |
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