1 | /**
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2 | * SearchGreenstoneByDate.java
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3 | * Copyright (C) 2010 New Zealand Digital Library, http://expeditee.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 3 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, see <http://www.gnu.org/licenses/>.
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17 | */
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18 |
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19 | package org.expeditee.agents;
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20 |
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21 | import java.util.Collections;
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22 | import java.util.Map;
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23 | import java.util.Vector;
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24 |
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25 | import org.expeditee.greenstone.Result;
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26 | import org.expeditee.greenstone.ResultDocument;
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27 | import org.expeditee.gui.FrameCreator;
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28 |
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29 | public class SearchGreenstoneByDate extends SearchGreenstone {
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30 |
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31 | public SearchGreenstoneByDate(int resultsCount, String searchText) {
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32 | super(resultsCount, searchText);
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33 | }
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34 |
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35 | public SearchGreenstoneByDate(String searchText) {
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36 | super(searchText);
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37 | }
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38 |
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39 | public SearchGreenstoneByDate() {
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40 | super();
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41 | }
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42 |
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43 | protected void createResults() {
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44 | if(_dateMap.isEmpty()){
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45 | initialiseDateMap(_currentResultSet);
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46 | }
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47 | viewByDate(_dateMap, _results);
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48 | }
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49 |
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50 | public void initialiseDateMap(Vector<Result> results) {
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51 | for (Result result : results) {
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52 | String docID = result.getDocID();
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53 |
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54 | ResultDocument rd = _gsdl.getDocument(docID);
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55 |
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56 | if (rd.metadataExists("Date")) {
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57 | addToDateMap(docID, rd);
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58 | }
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59 | }
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60 | }
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61 |
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62 | public void addToDateMap(String docID, ResultDocument rd) {
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63 | if (_dateMap.containsKey(rd.getDate())) {
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64 | Vector<String> dateVector = _dateMap.get(rd.getDate());
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65 | if (!dateVector.contains(docID)) {
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66 | dateVector.addElement(docID);
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67 | }
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68 | _dateMap.put(rd.getDate(), dateVector);
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69 | } else {
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70 | Vector<String> dateVector = new Vector<String>();
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71 | dateVector.addElement(docID);
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72 | _dateMap.put(rd.getDate(), dateVector);
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73 | }
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74 | }
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75 |
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76 | /**
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77 | * This method provides an alternative view of the result set It uses the
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78 | * dateMap which organises results according to the year in which they were
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79 | * published
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80 | *
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81 | * You will need to write a similar method for any additional view that you
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82 | * implement
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83 | *
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84 | * You may wish to modify this method to provide a better layout of the
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85 | * output
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86 | */
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87 | private void viewByDate(Map<String, Vector<String>> dateMap,
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88 | FrameCreator results) {
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89 | Vector<String> theDates = new Vector<String>(dateMap.keySet());
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90 | Collections.sort(theDates);
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91 |
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92 | for (String date : theDates) {
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93 | Vector<String> ids = dateMap.get(date);
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94 |
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95 | // Text dateText = results.addText(date, null, null, null, false);
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96 | // dateText.setFontStyle("bold");
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97 |
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98 | for (String docID : ids) {
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99 | ResultDocument rd = _gsdl.getDocument(docID);
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100 | addText(rd, results, date + "- " + rd.getTitle());
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101 | }
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102 | }
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103 | }
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104 | }
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