1 | /*
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2 | * SimpleClient.java
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3 | * Copyright (C) 2001 New Zealand Digital Library Project
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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 |
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20 | // the package we're in
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21 | package org.nzdl;
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22 |
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23 | // classes and packages we're importing ...
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24 | import java.util.Set;
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25 | import java.util.Map;
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26 | import java.util.ListIterator;
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27 | import java.util.Iterator;
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28 | import java.util.List;
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29 | import org.nzdl.service.NzdlCollectionInfo;
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30 | import org.nzdl.service.NzdlQuery;
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31 | import org.nzdl.service.NzdlRequest;
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32 | import org.nzdl.service.NzdlResponse;
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33 | import org.nzdl.service.NzdlResultSet;
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34 | import org.nzdl.service.NzdlService;
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35 | import org.nzdl.service.NzdlServiceImpl;
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36 |
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37 |
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38 | /**
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39 | * Class SimpleClient
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40 | *
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41 | * A class to test the workings of Corba interface from the client side.
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42 | *
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43 | * @author Dave Nichol ([email protected])
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44 | * @author Gordon Paynter ([email protected])
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45 | * @author stuart yeates ([email protected])
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46 | * @version $Revision: 2066 $
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47 | * @see org.nzdl.service.NzdlCollectionInfo;
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48 | * @see org.nzdl.service.NzdlQuery;
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49 | * @see org.nzdl.service.NzdlRequest;
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50 | * @see org.nzdl.service.NzdlResponse;
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51 | * @see org.nzdl.service.NzdlResultSet;
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52 | * @see org.nzdl.service.NzdlService;
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53 | * @see org.nzdl.service.NzdlServiceImpl;
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54 | */
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55 |
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56 | public class SimpleClient {
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57 |
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58 | public static final void main( String [] args ) {
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59 |
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60 | NzdlService nzdl = new NzdlServiceImpl( args );
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61 |
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62 | if (args.length < 3) {
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63 | System.err.println("WARNING: missing command line arguments. using defualts:");
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64 | System.err.println("usage: java <javaoptions> SimpleClient <collect> <xxx> <query>");
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65 | System.err.println(" <javaoptions> = options to the JVM ");
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66 | System.err.println(" <collect> = the greenstone collection to use (demo)");
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67 | System.err.println(" <xxx> = a currently unused option (xxx)");
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68 | System.err.println(" <query> = the query to use on the collection (the)");
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69 | args = new String [3];
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70 | args[0] = "demo";
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71 | args[1] = "xxx";
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72 | args[2] = "the";
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73 | }
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74 |
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75 | // extract some highlevel information on the collections on the server
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76 | // independent of the command line arguments passed in
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77 |
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78 | Set collectionSet = nzdl.getCollectionSet(); // set of strings of collection titles
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79 | System.out.println("Number of collections on the server: " + collectionSet.size());
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80 |
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81 | Iterator collectionSetIterator = collectionSet.iterator();
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82 | while (collectionSetIterator.hasNext() ) {
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83 | String collectionName = (String)collectionSetIterator.next(); // object -> String
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84 | NzdlCollectionInfo collectionInfo = nzdl.getCollectionInfo( collectionName );
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85 | // this next line should work but doesn't
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86 | System.out.println("Collection: " + collectionInfo.getName());
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87 | // so we revert to using the original string from the collectionSet
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88 | System.out.println("Collection: " + collectionName);
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89 | if (nzdl.hasCollection(collectionName) ) {
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90 | System.out.println("\t" + "hasCollection(" + collectionName + ")" + " is true");
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91 | if (nzdl.pingCollection(collectionName) ) {
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92 | System.out.println("\t" + "pingCollection(" + collectionName + ")" + " is true");
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93 | // these next statements make use of the NzdlCollection API
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94 | System.out.println("\t" + "Public: " + collectionInfo.isPublic());
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95 | System.out.println("\t" + "Beta: " + collectionInfo.isBeta());
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96 | int buildDate = collectionInfo.getBuildDate();
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97 | //process buildDate into something sensible
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98 | System.out.println("\t" + "Build Date: " + buildDate);
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99 | System.out.println("\t" + "No. of Documents: " + collectionInfo.getNumOfDocs());
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100 | System.out.println("\t" + "No. of Words: " + collectionInfo.getNumOfWords());
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101 | System.out.println("\t" + "No. of Bytes: " + collectionInfo.getNumOfBytes());
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102 | }
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103 | else {
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104 | System.out.println("\t" + "pingCollection(" + collectionName + ")" + " is false");
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105 | }
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106 | }
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107 | else
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108 | { System.out.println("\t" + "hasCollection(" + collectionName + ")" + " is false"); }
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109 | }
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110 |
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111 |
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112 |
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113 |
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114 | String collName = args[0];
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115 | NzdlCollectionInfo collInfo = nzdl.getCollectionInfo( collName );
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116 |
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117 | System.out.println("Searching collection: " + collName);
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118 |
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119 | int numResults = collInfo.getNumOfDocs(); // what precisely is this number ?
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120 | System.out.println("Collection " + collName + " suggests to get results in chunks of " + numResults + " hits" );
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121 | String method = args[1];
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122 | System.out.println("Search method: " + method);
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123 | String queryTerm = args[2];
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124 | System.out.println("Query Term: " + queryTerm);
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125 | String metaTag = "Title";
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126 |
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127 | System.out.println("Searching in '" + metaTag + "' metadata");
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128 |
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129 | NzdlQuery query = new NzdlQuery( queryTerm );
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130 | // return the first numResults that match
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131 | //query.setEndResults( 15 );
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132 | // "-1" means consider all the documents that match
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133 | query.setMaxDocs( -1 );
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134 |
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135 | NzdlRequest request = new NzdlRequest( query );
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136 | NzdlResponse response = new NzdlResponse( );
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137 | System.out.println("getting document IDs ... ");
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138 | nzdl.service( collName, request, response );
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139 |
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140 | NzdlResultSet results = response.getResultSet();
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141 | List docIDs = results.getDocumentIDs();
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142 | System.out.println("Number of documents returned: " + docIDs.size());
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143 |
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144 | System.out.println("getting '" + metaTag + "' meta data of documents ... ");
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145 | Map metaData = nzdl.getMetaData( collName, docIDs, metaTag );
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146 |
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147 | for (ListIterator i = docIDs.listIterator(); i.hasNext(); ) {
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148 | String id = (String) i.next();
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149 | Set meta = (Set) metaData.get( id );
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150 | System.out.println(meta.toString());
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151 | System.out.println("getting document contents ... ");
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152 | String documentContents = nzdl.getDocument(collName, id);
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153 | System.out.println("got document contents. ");
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154 | System.out.println(" *************** START DOC " + id + " ***************");
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155 | System.out.println(documentContents);
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156 | System.out.println(" *************** END DOC " + id + " ***************");
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157 | }
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158 |
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159 |
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160 | } //main
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161 |
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162 | } // class
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