1 | /**
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2 | *#########################################################################
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3 | *
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4 | * A component of the Gatherer application, part of the Greenstone digital
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5 | * library suite from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
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9 | *
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10 | * Copyright (C) 1999 New Zealand Digital Library Project
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11 | *
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12 | * This program is free software; you can redistribute it and/or modify
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13 | * it under the terms of the GNU General Public License as published by
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14 | * the Free Software Foundation; either version 2 of the License, or
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15 | * (at your option) any later version.
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16 | *
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17 | * This program is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, write to the Free Software
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24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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25 | *########################################################################
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26 | */
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27 | package org.greenstone.gatherer.cdm;
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28 |
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29 | import java.io.*;
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30 | import java.util.*;
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31 | import org.greenstone.gatherer.greenstone.Classifiers;
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32 | import org.greenstone.gatherer.util.StaticStrings;
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33 | import org.greenstone.gatherer.util.Utility;
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34 | import org.w3c.dom.*;
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35 |
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36 |
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37 | /** This class is responsible for storing information from a parsed classinfo.pl call in such a way that it allows easy access to parsed details for the purposes of user design and specification of classifiers.
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38 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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39 | * @version 2.3
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40 | */
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41 | public class Classifier
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42 | extends ArgumentContainer
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43 | {
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44 | static final public String CLASSIFIER_PREFIX = "CL";
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45 |
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46 | private boolean loading_options_failed = false;
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47 |
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48 |
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49 | /** Constructor used only in DOMProxyListModel initializations.
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50 | */
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51 | public Classifier() {
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52 | }
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53 |
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54 |
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55 | public Classifier(Element element, Classifier base_classifier) {
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56 | super(element, base_classifier);
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57 | }
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58 |
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59 |
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60 | /** The assigned classifier constructor.
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61 | * @param element the DOM Element this classifier is based upon
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62 | */
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63 | public DOMProxyListEntry create(Element element) {
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64 | String classifier_name = element.getAttribute(StaticStrings.TYPE_ATTRIBUTE);
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65 | // Determine the base classifier from the classifier name
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66 | Classifier base_classifier = Classifiers.getClassifier(classifier_name, true);
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67 | Classifier classifier = new Classifier(element, base_classifier);
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68 | if (base_classifier == null) {
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69 | // this is kind of a place holder classifier for one which is invalid. It won't get written out to the config file when its next saved.
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70 | classifier.setAssigned(false);
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71 | }
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72 | base_classifier = null;
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73 | classifier_name = null;
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74 | return classifier;
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75 | }
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76 |
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77 |
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78 | public boolean didLoadingOptionsFail()
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79 | {
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80 | return loading_options_failed;
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81 | }
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82 |
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83 |
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84 | /** Generate the string showing this classifiers position. */
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85 | public String getPositionString() {
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86 | String position_string = CLASSIFIER_PREFIX;
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87 | if(element != null) {
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88 | // Determine our place in the collect.cfg file
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89 | int position_int = CollectionDesignManager.classifier_manager.indexOf(this) + 1;
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90 | if(position_int != -1) {
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91 | position_string = position_string + position_int;
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92 | }
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93 | }
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94 | return position_string;
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95 | }
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96 |
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97 |
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98 | public void setLoadingOptionsFailed()
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99 | {
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100 | this.loading_options_failed = true;
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101 | }
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102 | }
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