1 | package org.greenstone.gsdl3.gs3build.metadata;
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2 |
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3 | import java.io.PrintWriter;
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4 |
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5 | import java.util.HashMap;
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6 | import java.util.Map;
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7 | import java.util.List;
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8 | import java.util.ArrayList;
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9 | import java.util.Iterator;
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10 |
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11 | import java.sql.SQLException;
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12 | import java.sql.Statement;
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13 | import java.sql.ResultSet;
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14 |
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15 | import org.w3c.dom.Element;
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16 | import org.w3c.dom.NodeList;
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17 |
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18 |
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19 |
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20 | import org.greenstone.gsdl3.gs3build.doctypes.DocumentInterface;
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21 |
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22 | import org.greenstone.gsdl3.gs3build.database.*;
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23 |
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24 | public class METSStructureSet
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25 | {
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26 | Map children;
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27 |
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28 | public static final String GSDL3_SECTION_STRUCTURE = "Section";
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29 |
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30 | public METSStructureSet()
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31 | {
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32 | this.children = new HashMap();
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33 | }
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34 |
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35 | public void addStructure(METSStructure structure)
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36 | {
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37 | this.children.put(structure.getID(), structure);
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38 | }
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39 |
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40 | public METSStructure getStructure(String name)
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41 | {
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42 | return (METSStructure) this.children.get(name);
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43 | }
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44 |
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45 | /**
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46 | * Find the divisions that contain a list of given files
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47 | *
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48 | * @param <code>List</code> the list of files to find...
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49 | * @return <code>List</code> the matching divisions.
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50 | */
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51 | public List findDivisionsForFiles(List listOfFileIdentifiers)
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52 | {
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53 | List reply = new ArrayList();
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54 |
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55 | // iterate across all the children...
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56 | Iterator structures = this.children.values().iterator();
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57 |
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58 | while (structures.hasNext()){
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59 | METSStructure structure = (METSStructure) structures.next();
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60 |
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61 | structure.findDivisionsForFiles(listOfFileIdentifiers, reply);
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62 | }
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63 | return reply;
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64 | }
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65 |
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66 | /**
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67 | * Add a division to an indicated structure.
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68 | *
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69 | * @param <code>String</code> the structure identifier
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70 | * @param <code>METSDivision</code> the division to be added.
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71 | */
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72 | public void addDivision(String structureId, METSDivision division)
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73 | {
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74 | METSStructure structure = (METSStructure) this.children.get(structureId);
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75 |
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76 | if (structure != null){
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77 | structure.addDivision(division);
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78 | }
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79 | }
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80 |
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81 | /**
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82 | * Add a division to an indicated division within structure.
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83 | *
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84 | * @param <code>String</code> the structure identifier
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85 | * @param <code>String</code> the division identifer, within which the division
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86 | * is to be placed.
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87 | * @param <code>METSDivision</code> the division to be added.
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88 | */
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89 | public void addSubDivision(String structureId, String divisionID, METSDivision division)
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90 | {
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91 | METSStructure structure = (METSStructure) this.children.get(structureId);
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92 |
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93 | if (structure != null){
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94 | structure.addSubDivision(divisionID, division);
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95 | }
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96 | }
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97 |
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98 | /**
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99 | * Get a division from within a given structure
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100 | *
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101 | * @param <code>String</code> the structure identifier
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102 | * @param <code>String</code> the division identifer
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103 | *
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104 | * @return <code>METSDivision</code> the division
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105 | */
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106 | public METSDivision getDivision(String structureId, String divisionId)
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107 | {
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108 | METSStructure structure = (METSStructure) this.children.get(structureId);
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109 |
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110 | if (structure != null){
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111 | return structure.getDivision(divisionId);
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112 | }
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113 | return null;
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114 | }
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115 | public static METSStructureSet parseXML(NodeList structMapSecs)
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116 | {
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117 | METSStructureSet set = new METSStructureSet();
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118 |
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119 | for (int c = 0; c < structMapSecs.getLength(); c++) {
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120 | METSStructure structure = METSStructure.parseXML((Element) structMapSecs.item(c));
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121 | set.addStructure(structure);
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122 | }
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123 | return set;
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124 | }
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125 |
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126 |
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127 | public void write(PrintWriter writer)
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128 | {
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129 | Iterator structures = this.children.values().iterator();
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130 |
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131 | while (structures.hasNext()){
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132 | METSStructure group = (METSStructure) structures.next();
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133 |
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134 | group.write(writer);
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135 | }
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136 | }
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137 |
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138 | public boolean writeSQL(DocumentInterface document, GS3SQLConnection connection)
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139 | {
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140 | Iterator structures = this.children.values().iterator();
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141 |
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142 | while (structures.hasNext()){
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143 | METSStructure group = (METSStructure) structures.next();
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144 |
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145 | if (!group.writeSQL(document, connection)){
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146 | return false;
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147 | }
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148 | }
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149 | return true;
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150 | }
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151 |
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152 | public static METSStructureSet readSQL(DocumentInterface document, GS3SQLConnection connection)
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153 | {
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154 | METSStructureSet set = new METSStructureSet();
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155 |
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156 | GS3SQLSelect select = new GS3SQLSelect("structure");
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157 | select.addField("*");
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158 | GS3SQLWhereItem whereItem = new GS3SQLWhereItem("DocID", "=", document.getID().toString());
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159 | select.setWhere(new GS3SQLWhere(whereItem));
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160 |
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161 | // start going through the matching metadata blocks
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162 | try {
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163 | Statement statement = connection.createStatement();
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164 | ResultSet resultSet = statement.executeQuery(select.toString());
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165 | if (resultSet.first()) {
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166 | do {
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167 | METSStructure structure = METSStructure.readSQL(document, connection, resultSet);
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168 | if (structure != null) {
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169 | set.addStructure(structure);
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170 | }
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171 | } while (resultSet.next());
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172 | }
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173 | statement.close();
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174 | }
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175 | catch (SQLException sqlEx) {
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176 | System.err.println("METSStructureSet.readSQL(): "+sqlEx);
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177 | System.exit(1);
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178 | }
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179 | return set;
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180 | }
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181 | }
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