svn-gvsig-desktop / branches / v2_0_0_prep / extensions / extCatalog / src / org / gvsig / catalog / loaders / PostgisLayerLoader.java @ 29625
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1 | 15557 | jpiera | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 28383 | jpiera | package org.gvsig.catalog.loaders; |
42 | 15557 | jpiera | |
43 | import java.sql.SQLException; |
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44 | import java.util.Map; |
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45 | import java.util.StringTokenizer; |
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46 | import java.util.TreeMap; |
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47 | |||
48 | 28383 | jpiera | import org.gvsig.catalog.schemas.Resource; |
49 | import org.gvsig.catalog.utils.Strings; |
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50 | 28355 | jpiera | import org.gvsig.fmap.mapcontext.layers.FLayer; |
51 | 15557 | jpiera | import org.gvsig.i18n.Messages; |
52 | 28383 | jpiera | import org.gvsig.tools.extensionpoint.ExtensionPoint; |
53 | 29625 | jpiera | import org.gvsig.utils.extensionPointsOld.ExtensionPointsSingleton; |
54 | 15557 | jpiera | |
55 | |||
56 | |||
57 | /**
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58 | * This class is used to load a POSTGIS resource in gvSIG
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59 | *
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60 | * @author Jorge Piera Llodra (piera_jor@gva.es)
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61 | */
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62 | |||
63 | 28431 | jpiera | public class PostgisLayerLoader extends GvSigLayerLoader{ |
64 | 15557 | jpiera | |
65 | |||
66 | |||
67 | public PostgisLayerLoader(Resource resource) {
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68 | super(resource);
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69 | } |
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70 | |||
71 | /**
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72 | * This function adds a Postgis Layer to gvSIG
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73 | * @param jdbcUrl
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74 | * JDBC url connection
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75 | * @param table
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76 | * Table to load
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77 | * @throws LayerLoaderException
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78 | */
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79 | public void loadLayer() throws LayerLoaderException { |
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80 | FLayer flayer; |
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81 | String jdbcUrl = getResource().getLinkage();
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82 | String table = getResource().getName();
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83 | flayer = createPostgisLayer(jdbcUrl, table); |
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84 | addLayerToView(flayer); |
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85 | } |
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86 | |||
87 | /**
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88 | * It returns a Postgis Layer
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89 | * @param jdbcUrl
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90 | * JDBC url connection
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91 | * @param table
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92 | * Table to load
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93 | * @return
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94 | * @throws SQLException
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95 | * @throws DriverLoadException
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96 | * @throws ClassNotFoundException
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97 | * @throws LayerLoaderException
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98 | */
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99 | private FLayer createPostgisLayer(String jdbcUrl, String table) throws LayerLoaderException { |
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100 | ExtensionPoint extensionPoint = (ExtensionPoint)ExtensionPointsSingleton.getInstance().get("CatalogLayers");
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101 | Map args = createParamsMap(jdbcUrl,table);
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102 | try {
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103 | return (FLayer)extensionPoint.create("POSTGIS", args ); |
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104 | } catch(Exception e) { |
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105 | throw new LayerLoaderException(getErrorMessage(),getWindowMessage()); |
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106 | } |
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107 | } |
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108 | |||
109 | /**
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110 | * Creates a Map with all the params
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111 | * @param jdbcUrl
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112 | * JDBC url connection
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113 | * @param table
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114 | * Table to load
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115 | * @return
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116 | * Map
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117 | */
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118 | private Map createParamsMap(String jdbcUrl, String table){ |
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119 | StringTokenizer sti = new StringTokenizer(jdbcUrl,"?"); |
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120 | String dbURL = sti.nextToken();
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121 | String p = sti.nextToken();
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122 | TreeMap map = separateParams(p);
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123 | String user = (String) map.get((String) "USER"); |
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124 | String pwd = (String) map.get((String) "PASSWORD"); |
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125 | map = Strings.separateParams(table); |
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126 | map.put("USER",user);
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127 | map.put("PASSWORD",pwd);
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128 | map.put("WHERECLAUSE",""); |
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129 | map.put("DBURL",dbURL);
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130 | return map;
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131 | } |
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132 | |||
133 | private TreeMap separateParams(String pairValues){ |
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134 | TreeMap map = new TreeMap(); |
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135 | String[] params = pairValues.split("&"); |
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136 | for (int i = 0; i < params.length; i++) { |
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137 | String[] nameValue = params[i].split("="); |
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138 | map.put(nameValue[0].toUpperCase(), nameValue[1]); |
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139 | } |
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140 | return map;
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141 | } |
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142 | |||
143 | /*
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144 | * (non-Javadoc)
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145 | * @see es.gva.cit.gvsig.catalogClient.loaders.LayerLoader#getErrorMessage()
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146 | */
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147 | protected String getErrorMessage() { |
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148 | return Messages.getText("postgisError") + ".\n" + |
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149 | Messages.getText("server") + ": " + |
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150 | getResource().getLinkage() + "\n" +
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151 | Messages.getText("parameters") + ": " + |
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152 | getResource().getName(); |
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153 | } |
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154 | |||
155 | /*
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156 | * (non-Javadoc)
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157 | * @see es.gva.cit.gvsig.catalogClient.loaders.LayerLoader#getWindowMessage()
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158 | */
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159 | protected String getWindowMessage() { |
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160 | return Messages.getText("postgisLoad"); |
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161 | } |
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162 | |||
163 | |||
164 | } |