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/******************************************************************************
* $Id: ili2handler.cpp 24408 2012-05-11 21:31:45Z pka $
*
* Project: Interlis 2 Reader
* Purpose: Implementation of ILI2Handler class.
* Author: Markus Schnider, Sourcepole AG
*
******************************************************************************
* Copyright (c) 2004, Pirmin Kalberer, Sourcepole AG
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "ogr_ili2.h"
#include "cpl_conv.h"
#include "cpl_string.h"
#include "ili2readerp.h"
#include <xercesc/sax2/Attributes.hpp>
CPL_CVSID("$Id: ili2handler.cpp 24408 2012-05-11 21:31:45Z pka $");
//
// constants
//
static const char* ILI2_DATASECTION = "DATASECTION";
//
// ILI2Handler
//
ILI2Handler::ILI2Handler( ILI2Reader *poReader ) {
m_poReader = poReader;
XMLCh *tmpCh = XMLString::transcode("CORE");
DOMImplementation *impl = DOMImplementationRegistry::getDOMImplementation(tmpCh);
XMLString::release(&tmpCh);
// the root element
tmpCh = XMLString::transcode("ROOT");
dom_doc = impl->createDocument(0,tmpCh,0);
XMLString::release(&tmpCh);
// the first element is root
dom_elem = dom_doc->getDocumentElement();
}
ILI2Handler::~ILI2Handler() {
// remove all elements
DOMNode *tmpNode = dom_doc->getFirstChild();
while (tmpNode != NULL) {
tmpNode = dom_doc->removeChild(tmpNode);
tmpNode = dom_doc->getFirstChild();
}
// release the dom tree
dom_doc->release();
}
void ILI2Handler::startDocument() {
// the level counter starts with DATASECTION
level = -1;
m_nEntityCounter = 0;
}
void ILI2Handler::endDocument() {
// nothing to do
}
void ILI2Handler::startElement(
const XMLCh* const uri,
const XMLCh* const localname,
const XMLCh* const qname,
const Attributes& attrs
) {
// start to add the layers, features with the DATASECTION
char *tmpC = NULL;
m_nEntityCounter = 0;
if ((level >= 0) || (cmpStr(ILI2_DATASECTION, tmpC = XMLString::transcode(qname)) == 0)) {
level++;
if (level >= 2) {
// create the dom tree
DOMElement *elem = (DOMElement*)dom_doc->createElement(qname);
// add all attributes
unsigned int len = attrs.getLength();
for (unsigned int index = 0; index < len; index++)
elem->setAttribute(attrs.getQName(index), attrs.getValue(index));
dom_elem->appendChild(elem);
dom_elem = elem;
}
}
XMLString::release(&tmpC);
}
void ILI2Handler::endElement(
const XMLCh* const uri,
const XMLCh* const localname,
const XMLCh* const qname
) {
m_nEntityCounter = 0;
if (level >= 0) {
if (level == 2) {
// go to the parent element and parse the child element
DOMElement* childElem = dom_elem;
dom_elem = (DOMElement*)dom_elem->getParentNode();
m_poReader->AddFeature(childElem);
// remove the child element
childElem = (DOMElement*)dom_elem->removeChild(childElem);
} else if (level >= 3) {
// go to the parent element
dom_elem = (DOMElement*)dom_elem->getParentNode();
}
level--;
}
}
#if XERCES_VERSION_MAJOR >= 3
/************************************************************************/
/* characters() (xerces 3 version) */
/************************************************************************/
void ILI2Handler::characters( const XMLCh *const chars,
const XMLSize_t length ) {
// add the text element
if (level >= 3) {
char *tmpC = XMLString::transcode(chars);
// only add the text if it is not empty
if (trim(tmpC) != "")
dom_elem->appendChild(dom_doc->createTextNode(chars));
XMLString::release(&tmpC);
}
}
#else
/************************************************************************/
/* characters() (xerces 2 version) */
/************************************************************************/
void ILI2Handler::characters( const XMLCh *const chars,
const unsigned int length ) {
// add the text element
if (level >= 3) {
char *tmpC = XMLString::transcode(chars);
// only add the text if it is not empty
if (trim(tmpC) != "")
dom_elem->appendChild(dom_doc->createTextNode(chars));
XMLString::release(&tmpC);
}
}
#endif
void ILI2Handler::startEntity (const XMLCh *const name)
{
m_nEntityCounter++;
if (m_nEntityCounter > 1000)
{
throw SAXNotSupportedException ("File probably corrupted (million laugh pattern)");
}
}
void ILI2Handler::fatalError(const SAXParseException&) {
// FIXME Error handling
}
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