/**
* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* • Apache License, version 2.0
* • Apache Software License, version 1.0
* • GNU Lesser General Public License, version 3
* • Mozilla Public License, versions 1.0, 1.1 and 2.0
* • Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* License version 2 and the aforementioned licenses.
*
* As an exception to the terms of the GPL, you may copy, modify,
* propagate, and distribute a work formed by combining 52°North WPS
* GeoTools Modules with the Eclipse Libraries, or a work derivative of
* such a combination, even if such copying, modification, propagation, or
* distribution would otherwise violate the terms of the GPL. Nothing in
* this exception exempts you from complying with the GPL in all respects
* for all of the code used other than the Eclipse Libraries. You may
* include this exception and its grant of permissions when you distribute
* 52°North WPS GeoTools Modules. Inclusion of this notice with such a
* distribution constitutes a grant of such permissions. If you do not wish
* to grant these permissions, remove this paragraph from your
* distribution. "52°North WPS GeoTools Modules" means the 52°North WPS
* modules using GeoTools functionality - software licensed under version 2
* or any later version of the GPL, or a work based on such software and
* licensed under the GPL. "Eclipse Libraries" means Eclipse Modeling
* Framework Project and XML Schema Definition software distributed by the
* Eclipse Foundation and licensed under the Eclipse Public License Version
* 1.0 ("EPL"), or a work based on such software and licensed under the EPL.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*/
package org.n52.wps.io.datahandler.parser;
import java.util.HashMap;
import java.util.Map;
import javax.xml.XMLConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* @author Theodor Foerster, ITC
*
*/
public class GML2Handler extends DefaultHandler {
private Logger LOGGER = LoggerFactory.getLogger(GML2Handler.class);
// private static String SCHEMA = "http://www.opengis.net/wfs";
private String schemaUrl;
private String nameSpaceURI;
private boolean rootVisited = false;
private Map<String, String> namespaces = new HashMap<String, String>();
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
super.startElement(uri, localName, qName, attributes);
if(rootVisited) {
return;
}
// check if root is a xml-beans element.
if(localName.equals("xml-fragment")) {
return;
}
rootVisited = true;
String schemaLocationAttr = attributes.getValue(XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, "schemaLocation");
if(schemaLocationAttr == null) {
LOGGER.debug("schemaLocation attribute is not set correctly with namespace");
schemaLocationAttr = attributes.getValue("xsi:schemaLocation");
if(schemaLocationAttr == null){
schemaLocationAttr = attributes.getValue("schemaLocation");
}
}
String[] locationStrings = schemaLocationAttr.replace(" ", " ").split(" ");
if(locationStrings.length % 2 != 0) {
LOGGER.debug("schemaLocation does not reference locations correctly, odd number of whitespace separated addresses");
return;
}
for(int i = 0; i< locationStrings.length; i++) {
if(i % 2 == 0 && !locationStrings[i].equals("http://www.opengis.net/wfs") && !locationStrings[i].equals("http://www.opengis.net/gml") && !locationStrings[i].equals("")){
nameSpaceURI = locationStrings[i];
schemaUrl = locationStrings[i + 1];
return;
}
}
}
public String getSchemaUrl(){
return schemaUrl;
}
@Override
public void startPrefixMapping(String prefix, String uri) throws SAXException {
super.startPrefixMapping(prefix, uri);
namespaces.put(prefix, uri);
}
public String getNameSpaceURI() {
return nameSpaceURI;
}
}