root / tags / v1_1_Build_914 / extensions / extCatalogYNomenclator / src / es / gva / cit / gvsig / catalogClient / loaders / PostgisLayerLoader.java @ 11873
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package es.gva.cit.gvsig.catalogClient.loaders; |
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import java.sql.SQLException; |
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import java.util.Map; |
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import java.util.StringTokenizer; |
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import java.util.TreeMap; |
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import org.gvsig.i18n.Messages; |
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import com.hardcode.driverManager.DriverLoadException; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.utiles.extensionPoints.ExtensionPoint; |
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import com.iver.utiles.extensionPoints.ExtensionPointsSingleton; |
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import es.gva.cit.catalogClient.schemas.discoverer.Resource; |
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import es.gva.cit.catalogClient.utils.Strings; |
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/**
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* This class is used to load a POSTGIS resource in gvSIG
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*
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* @author Jorge Piera Llodra (piera_jor@gva.es)
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*/
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public class PostgisLayerLoader extends LayerLoader{ |
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public PostgisLayerLoader(Resource resource) {
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super(resource);
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} |
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/**
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* This function adds a Postgis Layer to gvSIG
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* @param jdbcUrl
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* JDBC url connection
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* @param table
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* Table to load
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* @throws LayerLoaderException
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*/
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public void loadLayer() throws LayerLoaderException { |
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FLayer flayer; |
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String jdbcUrl = getResource().getLinkage();
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String table = getResource().getName();
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flayer = createPostgisLayer(jdbcUrl, table); |
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addLayerToView(flayer); |
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} |
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/**
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* It returns a Postgis Layer
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* @param jdbcUrl
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* JDBC url connection
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* @param table
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* Table to load
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* @return
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* @throws SQLException
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* @throws DriverLoadException
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* @throws ClassNotFoundException
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* @throws LayerLoaderException
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*/
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private FLayer createPostgisLayer(String jdbcUrl, String table) throws LayerLoaderException { |
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ExtensionPoint extensionPoint = (ExtensionPoint)ExtensionPointsSingleton.getInstance().get("CatalogLayers");
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Map args = createParamsMap(jdbcUrl,table);
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try {
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return (FLayer)extensionPoint.create("POSTGIS", args ); |
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} catch(Exception e) { |
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throw new LayerLoaderException(getErrorMessage(),getWindowMessage()); |
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} |
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} |
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/**
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* Creates a Map with all the params
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* @param jdbcUrl
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* JDBC url connection
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* @param table
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* Table to load
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* @return
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* Map
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*/
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private Map createParamsMap(String jdbcUrl, String table){ |
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StringTokenizer sti = new StringTokenizer(jdbcUrl,"?"); |
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String dbURL = sti.nextToken();
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String p = sti.nextToken();
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TreeMap map = separateParams(p);
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String user = (String) map.get((String) "USER"); |
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String pwd = (String) map.get((String) "PASSWORD"); |
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map = Strings.separateParams(table); |
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map.put("USER",user);
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map.put("PASSWORD",pwd);
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map.put("WHERECLAUSE",""); |
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map.put("DBURL",dbURL);
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return map;
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} |
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private TreeMap separateParams(String pairValues){ |
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TreeMap map = new TreeMap(); |
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String[] params = pairValues.split("&"); |
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for (int i = 0; i < params.length; i++) { |
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String[] nameValue = params[i].split("="); |
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map.put(nameValue[0].toUpperCase(), nameValue[1]); |
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} |
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return map;
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} |
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/*
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* (non-Javadoc)
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* @see es.gva.cit.gvsig.catalogClient.loaders.LayerLoader#getErrorMessage()
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*/
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protected String getErrorMessage() { |
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return Messages.getText("postgisError") + ".\n" + |
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Messages.getText("server") + ": " + |
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getResource().getLinkage() + "\n" +
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Messages.getText("parameters") + ": " + |
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getResource().getName(); |
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} |
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/*
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* (non-Javadoc)
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* @see es.gva.cit.gvsig.catalogClient.loaders.LayerLoader#getWindowMessage()
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*/
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protected String getWindowMessage() { |
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return Messages.getText("postgisLoad"); |
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} |
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} |