root / branches / v10 / libraries / libRemoteServices / src / org / gvsig / remoteClient / gml / GMLReader.java @ 10876
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package org.gvsig.remoteClient.gml; |
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import java.awt.geom.Rectangle2D; |
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import org.gvsig.remoteClient.gml.exceptions.BaseException; |
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import org.gvsig.remoteClient.gml.exceptions.GMLException; |
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import org.gvsig.remoteClient.gml.exceptions.GMLParserException; |
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import org.gvsig.remoteClient.gml.exceptions.ListBaseException; |
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import org.gvsig.remoteClient.gml.factories.FeaturesParserFactory; |
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import org.gvsig.remoteClient.gml.factories.IGeometriesFactory; |
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import org.gvsig.remoteClient.gml.factories.XMLParserFactory; |
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import org.gvsig.remoteClient.gml.schemas.XMLSchemaManager; |
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import org.gvsig.remoteClient.gml.schemas.XMLSchemaParser; |
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import org.gvsig.remoteClient.gml.warnings.GMLWarningInfo; |
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import org.xmlpull.v1.XmlPullParserException; |
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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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/* CVS MESSAGES:
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*
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* $Id: GMLReader.java 9917 2007-01-25 16:13:00Z jorpiell $
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* $Log$
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* Revision 1.1.2.3 2007-01-25 16:12:59 jorpiell
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* Se han sustituido las clases por las que hay en el nuevo driver de GML.
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*
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* Revision 1.4 2007/01/15 13:11:00 csanchez
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* Sistema de Warnings y Excepciones adaptado a BasicException
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*
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* Revision 1.3 2006/12/22 11:25:44 csanchez
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* Nuevo parser GML 2.x para gml's sin esquema
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*
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* Revision 1.2 2006/11/06 12:15:11 jorpiell
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* A?adido un constructor con un par?metro booleano que se usar? para abrir gml's sin validar el esquema
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*
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* Revision 1.1 2006/08/10 12:00:49 jorpiell
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* Primer commit del driver de Gml
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*
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*
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*/
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/**
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* This class must be used to read any GML 2.x file (2.0, 2.1.1
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* 2.1.2). It is able to parse GML features that have a xml complex
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* type with only one level of complexity. More levels and GML 3.x
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* will be supported in next versions.
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*
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* Name: OpenGIS? Geography Markup Language (GML) Implementation Specification,
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* Version: 2.x
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* Project Document: 01-029 (2.0), 02-099 (2.1.1) and 02-069 (v2.1.2)
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*
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* @author Jorge Piera Llodr? (piera_jor@gva.es)
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* @author Carlos S?nchez Peri??n (sanchez_carper@gva.es)
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*
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*/
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public class GMLReader { |
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private XMLSchemaManager schemaManager = null; |
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private GMLFeaturesParser featuresParser = null; |
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private FeaturesParserFactory featuresFactory = null; |
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private GMLWarningInfo warnings = null; |
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private File m_File = null; |
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/**
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* Constructor
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* @param file
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* GML File to read
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* @param factory
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* Geometries factory that is used to create the parsed
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* GML geometries
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* @throws Exception
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* @throws FileNotFoundException
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* When the file is not found
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*/
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public GMLReader(File file,IGeometriesFactory factory) throws GMLException{ |
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//file to parse...
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this.m_File = file;
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initialize(factory); |
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} |
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/**
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* Initializes the XMLSchemaParser, tries to parse the GML header
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* to obtain the GML version and parses all the needed schemas
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* @param factory
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* Geometries factory that is used to create the parsed
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* GML geometries
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* @throws Exception
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*/
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private void initialize(IGeometriesFactory factory) throws GMLException{ |
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warnings = new GMLWarningInfo();
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XMLSchemaParser parser = new XMLParserFactory().createSchemaParser(m_File);
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//Retrieve the header attributes and download and parse the schema
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schemaManager = new XMLSchemaManager(m_File);
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try {
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schemaManager.parse(parser); |
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} catch (XmlPullParserException e) {
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// TODO Auto-generated catch block
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throw new GMLException(m_File.getName(),e); |
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} catch (IOException e) { |
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// TODO Auto-generated catch block
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throw new GMLException(m_File.getName(),e); |
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} |
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//Parse the GML global fields
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featuresFactory = new FeaturesParserFactory();
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try {
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featuresParser = featuresFactory.createParser(getVersion(),factory,parser); |
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} catch (GMLParserException e) {
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throw new GMLException(m_File.getName(),e); |
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} |
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} |
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/**
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* Gets the GML iteartor used to retrieve all the
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* features
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* @param factory
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* Factory to create the geometries
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* @return
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*/
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public IGMLFeaturesIterator getFeaturesIterator() throws GMLException{ |
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try {
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return featuresParser.getFeaturesReader();
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} catch (BaseException e) {
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throw new GMLException(e); |
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} |
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} |
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/**
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* @return Returns the version.
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*/
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public String getVersion(){ |
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return schemaManager.getVersion();
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} |
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/**
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* @return Returns a list of codes with information to the user about GML parse.
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* @throws ListBaseException
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*/
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public ListBaseException getWarnings(){
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if (schemaManager.warnings.areWarnings())
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{ |
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warnings.setGMLWarningList(schemaManager.warnings.getGMLWarningList()); |
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} |
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if (featuresFactory.warnings.areWarnings())
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{ |
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warnings.setGMLWarningList(featuresFactory.warnings.getGMLWarningList()); |
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} |
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//***********************************************************
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// CUIDADO CON LANZAR LOS WARNINGS, YA VEREMOS COMO LANZARLOS
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//***********************************************************
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return warnings.getGMLWarningList();
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} |
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// /**
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// * @return Returns true if there are warnings parsing the gml file.
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// */
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// public boolean areWarnings(){
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// this.getWarnings();
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// if (warnings.areWarnings())
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// {
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// return true;
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// }
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// return false;
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// }
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/**
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* @return Returns the target namespace.
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*/
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public String getTargetNamespace(){ |
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return schemaManager.getTargetNamespace();
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} |
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/**
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* @return Returns the extent.
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*/
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public Rectangle2D getExtent(){ |
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return featuresParser.getExtent().getExtent();
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} |
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/**
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* @return Returns the SRS
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*/
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public String getSRS(){ |
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return featuresParser.getExtent().getSrs();
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} |
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} |