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: 5663 $
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36 | *
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37 | */
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38 | class XMLUtil {
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39 |
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40 | /** the singleton instance */
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41 | protected static XMLUtil instance = null;
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42 |
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43 |
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44 | /** JAXP parser factory */
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45 | protected DocumentBuilderFactory doc_build_fact=null;
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46 |
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47 | /** JAXP parser factory */
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48 | static public DocumentBuilderFactory getDocumentBuilderFactory() {
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49 | if (instance == null)
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50 | init();
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51 | return instance.doc_build_fact;
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52 | }
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53 |
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54 | /** JAXP parser */
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55 | protected DocumentBuilder doc_builder=null;
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56 |
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57 | /** JAXP parser */
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58 | static public DocumentBuilder getDocumentBuilder() {
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59 | if (instance == null)
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60 | init();
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61 | return instance.doc_builder;
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62 | }
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63 |
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64 | /** xerces parser */
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65 | protected DOMParser parser = null;
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66 |
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67 | /** xerces parser */
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68 | static public DOMParser getDOMParser() {
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69 | if (instance == null)
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70 | init();
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71 | return instance.parser;
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72 | }
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73 |
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74 | /** initalise the statics */
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75 | static protected void init() {
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76 | instance = new XMLUtil();
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77 | try {
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78 | instance.doc_build_fact = DocumentBuilderFactory.newInstance();
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79 |
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80 | instance.doc_builder = instance.doc_build_fact.newDocumentBuilder();
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81 | instance.parser = new DOMParser();
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82 | } catch (Exception e) {
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83 | System.out.println("XMLConverter:exception "+e.getMessage());
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84 | }
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85 | }
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86 |
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87 | /**
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88 | * Checks that the objects can be instantiated
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89 | *
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90 | */
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91 | public static void main(String args[]) throws IOException
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92 | {
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93 | XMLUtil.getDOMParser();
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94 | }
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95 | }
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96 |
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