svn-gvsig-desktop / tags / Root_v061 / applications / appCatalogYNomenclatorClient / src / es / gva / cit / catalogClient / languages / CommonQueryLanguage.java @ 4812
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| 1 | 3566 | jorpiell | |
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| 2 | 3593 | jorpiell | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 3 | 2820 | jorpiell | *
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| 4 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU General Public License
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| 8 | * as published by the Free Software Foundation; either version 2
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| 9 | * of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 19 | *
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| 20 | * For more information, contact:
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| 21 | *
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| 22 | * Generalitat Valenciana
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| 23 | * Conselleria d'Infraestructures i Transport
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| 24 | 3593 | jorpiell | * Av. Blasco Ib??ez, 50
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| 25 | 2820 | jorpiell | * 46010 VALENCIA
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| 26 | * SPAIN
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| 27 | *
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| 28 | * +34 963862235
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| 29 | * gvsig@gva.es
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| 30 | * www.gvsig.gva.es
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| 31 | *
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| 32 | * or
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| 33 | *
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| 34 | * IVER T.I. S.A
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| 35 | * Salamanca 50
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| 36 | * 46005 Valencia
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| 37 | * Spain
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| 38 | *
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| 39 | * +34 963163400
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| 40 | * dac@iver.es
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| 41 | */
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| 42 | 2145 | jorpiell | package es.gva.cit.catalogClient.languages; |
| 43 | import java.util.Iterator; |
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| 44 | import java.util.StringTokenizer; |
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| 45 | |||
| 46 | /**
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| 47 | 3566 | jorpiell | * This class is used to create a Common Query Language query.
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| 48 | 2921 | jorpiell | * See the specification for more information.
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| 49 | *
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| 50 | 3566 | jorpiell | *
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| 51 | * @author Jorge Piera Llodra (piera_jor@gva.es)
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| 52 | 2953 | jorpiell | * @see http://www.loc.gov/z3950/agency/zing/cql/
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| 53 | 2145 | jorpiell | */
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| 54 | 2724 | jorpiell | public class CommonQueryLanguage extends AbstractGeneralLanguage { |
| 55 | 3566 | jorpiell | |
| 56 | /**
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| 57 | *
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| 58 | *
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| 59 | *
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| 60 | * @param parameter
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| 61 | * @param line
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| 62 | * @param concordancia
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| 63 | */
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| 64 | 3891 | jorpiell | public void addClauses(String parameter, String line, String concordancia,String operator) { |
| 65 | 2724 | jorpiell | currentClause = null;
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| 66 | 2921 | jorpiell | |
| 67 | 2724 | jorpiell | Iterator values = parseValues(line, concordancia);
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| 68 | 3891 | jorpiell | addClauses(parameter, values, concordancia,operator); |
| 69 | 3566 | jorpiell | } |
| 70 | 2724 | jorpiell | |
| 71 | 3566 | jorpiell | /**
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| 72 | *
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| 73 | *
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| 74 | *
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| 75 | * @param parameter
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| 76 | * @param values
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| 77 | * @param concordancia
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| 78 | */
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| 79 | 3891 | jorpiell | public void addClauses(String parameter, Iterator values, String concordancia, String operator) { |
| 80 | 2724 | jorpiell | while (values.hasNext())
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| 81 | addTerm(parameter, (String) values.next(), concordancia);
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| 82 | 3891 | jorpiell | addCurrentClauseQuery(operator); |
| 83 | 3566 | jorpiell | } |
| 84 | 2724 | jorpiell | |
| 85 | 3566 | jorpiell | /**
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| 86 | 3595 | jorpiell | * It adds a new search field to the string
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| 87 | 3566 | jorpiell | *
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| 88 | 3613 | jorpiell | *
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| 89 | 3566 | jorpiell | * @param parameter
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| 90 | * @param value
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| 91 | * @param concordancia
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| 92 | */
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| 93 | private void addTerm(String parameter, String value, String concordancia) { |
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| 94 | 2724 | jorpiell | StringBuffer term = new StringBuffer(); |
| 95 | term.append(parameter + "=" + cutWord(value, concordancia));
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| 96 | if (currentClause == null) { |
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| 97 | currentClause = term.toString(); |
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| 98 | } else {
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| 99 | currentClause = "(" + currentClause + " " + |
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| 100 | getOperator(concordancia) + " " + term.toString() + ")"; |
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| 101 | 3891 | jorpiell | |
| 102 | } |
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| 103 | 3566 | jorpiell | } |
| 104 | 2724 | jorpiell | |
| 105 | 3566 | jorpiell | /**
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| 106 | *
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| 107 | *
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| 108 | */
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| 109 | 3891 | jorpiell | protected void addCurrentClauseQuery(String operator) { |
| 110 | 2724 | jorpiell | if (currentClause != null) { |
| 111 | if (currentQuery == null) { |
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| 112 | currentQuery = currentClause; |
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| 113 | } else {
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| 114 | 3891 | jorpiell | currentQuery = "(" + currentQuery + " " + |
| 115 | operator + " " + currentClause + ")"; |
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| 116 | 2724 | jorpiell | } |
| 117 | } |
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| 118 | 3566 | jorpiell | } |
| 119 | 2724 | jorpiell | |
| 120 | 3566 | jorpiell | /**
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| 121 | *
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| 122 | *
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| 123 | *
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| 124 | * @return
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| 125 | */
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| 126 | public String toString() { |
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| 127 | 2724 | jorpiell | return currentQuery;
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| 128 | 3566 | jorpiell | } |
| 129 | 2724 | jorpiell | |
| 130 | 3566 | jorpiell | /**
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| 131 | *
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| 132 | *
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| 133 | *
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| 134 | * @return
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| 135 | * @param line
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| 136 | * @param titleKeys
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| 137 | */
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| 138 | public String cutWord(String line, String titleKeys) { |
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| 139 | 3509 | jorpiell | |
| 140 | 2724 | jorpiell | if (titleKeys.equals("E")) { |
| 141 | StringTokenizer sti = new StringTokenizer(line, " ", true); |
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| 142 | boolean first = true; |
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| 143 | String token = ""; |
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| 144 | while (sti.hasMoreTokens()) {
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| 145 | String currentToken = sti.nextToken();
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| 146 | if (first) {
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| 147 | token = currentToken; |
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| 148 | first = !first; |
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| 149 | } else if (!(currentToken.equals(" "))) { |
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| 150 | token = "(" + token + " and " + currentToken + ")"; |
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| 151 | } |
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| 152 | } |
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| 153 | return token;
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| 154 | } |
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| 155 | return line;
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| 156 | 3566 | jorpiell | } |
| 157 | } |