svn-gvsig-desktop / trunk / libraries / libRemoteServices / src / org / gvsig / remoteClient / gml / engine / AbstractDriver.java @ 10269
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package org.gvsig.remoteClient.gml.engine; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import org.gvsig.exceptions.BaseException; |
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import org.gvsig.remoteClient.gml.engine.readers.IReaderFile; |
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import org.gvsig.remoteClient.gml.factories.IGeometriesFactory; |
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import org.gvsig.remoteClient.kml.exceptions.KmlException; |
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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: AbstractDriver.java 10269 2007-02-12 13:51:08Z jorpiell $
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* $Log$
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* Revision 1.1 2007-02-12 13:49:18 jorpiell
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* A?adido el driver de KML
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*
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*
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*/
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/**
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* @author Jorge Piera Llodr? (piera_jor@gva.es)
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*/
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public abstract class AbstractDriver implements IDriver{ |
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private InputStream inputStream = null; |
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private IReaderFile reader = null; |
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protected IFeaturesParser featuresParser = null; |
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/**
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* Constructor
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* @param file
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* File to read
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* @param factory
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* Geometries factory that is used to create the parsed geometries
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* When the file is not found
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* @throws BaseException
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*/
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public AbstractDriver(InputStream file, IGeometriesFactory factory) throws BaseException{ |
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//file to parse...
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this.inputStream = file;
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initializeReader(); |
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initialize(factory); |
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} |
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/**
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* Initializes the file reader
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*
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*/
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protected abstract void initializeReader() throws BaseException; |
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/**
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* Initializes the IReader, tries to parse the file header
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* to obtain the 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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* geometries
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* @throws BaseException
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*/
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protected abstract void initialize(IGeometriesFactory factory) throws BaseException; |
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/**
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* @return Returns the reader.
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*/
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public IReaderFile getReader() {
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return reader;
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} |
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/**
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* @param reader The reader to set.
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*/
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protected void setReader(IReaderFile reader) { |
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this.reader = reader;
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} |
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/**
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* @return Returns the inputStream.
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*/
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public InputStream getInputStream() { |
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return inputStream;
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} |
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/**
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* @return Returns the encoding.
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* @throws KmlException
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*/
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protected String getEncoding() throws KmlException { |
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String encoding = "UTF-8"; |
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InputStream is = getInputStream();
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int index = -1; |
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int endIndex = -1; |
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String header = ""; |
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boolean endHeader = false; |
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try {
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int i = 1; |
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while((!endHeader) && (i < 100)){ |
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byte[] buffer = new byte[1]; |
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is.read(buffer); |
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header = header + new String(buffer); |
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//This if is to locate the encoding string
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if (index == -1) { |
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String searchText = "encoding=\""; |
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index = header.indexOf(searchText); |
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if (index > -1){ |
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header = "";
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} |
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} |
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//This if is to locate the encoding value
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if (index > -1){ |
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String searchText = "\""; |
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endIndex = header.indexOf(searchText); |
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if (endIndex > -1){ |
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encoding = header.substring(0, endIndex);
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} |
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} |
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//To finish to parse the header
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if (endIndex > -1){ |
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String searchText = ">"; |
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int headerEndIndex = header.indexOf(searchText);
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if (headerEndIndex > -1){ |
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endHeader = true;
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} |
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} |
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i++; |
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} |
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} catch (IOException e) { |
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throw new KmlException(getInputStream(),e); |
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} |
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return encoding;
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} |
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} |