Hi ,
I try to use the getChildNodes, but it return result and then core dump.
Am I doing anything incorrectly? I really need some help here. I am
using xerces C++ from the nightly build (9/14) on solaris.
I also attached my full code and data file. thanks for your help in
advance.
My xml looks like this:
<?xml version="1.0" standalone="no"?>
<!DOCTYPE test SYSTEM "testing.dtd">
<test>
<CommandIndex value = "TBD"/>
<Argument>
<Record>
<ID value = "1"/>
<Clock value = "ENABLE"/>
</Record>
<Record>
<ID value = "1"/>
<Clock value = "ENABLE"/>
</Record>
</Argument>
</test>
I modifiied the DOMCount examples and added call to getChildNodes:
try
{
cout << " parsing buffer .. " << endl;
parser.parse("testing.xml");
DOM_Document doc = parser.getDocument();
DOM_Element root = doc.getDocumentElement();
DOM_NodeList demodClock =
root.getElementsByTagName(DOMString("Argument") );
DOM_NodeList childlist;
if ( demodClock.getLength() == 1 )
{
cout << " Name of doemclock child node: " <<
( ((DOM_Element&)(demodClock.item(0))
).getTagName()).transcode() << endl;
childlist = (demodClock.item(0)).getChildNodes();
}
else
{
cout << " Dup element" << endl;
return 1;
}
cout << " length: " << childlist.getLength() << endl;
for (int i = 0; i < childlist.getLength() ; i++)
{
cout << ( ((DOM_Element&)childlist.item(i)).getTagName()
).transcode() << endl;
}
***
its prints out this and core dumped
..../bin<9535> ./test
parsing buffer ..
Name of doemclock child node: Argument
length: 5
Segmentation Fault(coredump)
the lenght should be 2 , but it returns 5.
also, Name of doemclock child node should be "Record" .
thanks for your help
Eva
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
rse* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache\@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation, and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com . For more information
* on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/*
* $Id: DOMCount.cpp,v 1.18 2001/08/15 12:41:04 tng Exp $
*/
// ---------------------------------------------------------------------------
// Includes
// ---------------------------------------------------------------------------
#include <util/PlatformUtils.hpp>
#include <sax/SAXException.hpp>
#include <sax/SAXParseException.hpp>
#include <parsers/DOMParser.hpp>
#include <dom/DOM_DOMException.hpp>
#include "DOMCount.hpp"
#include <string.h>
#include <stdlib.h>
#include <fstream.h>
#include <rw/cstring.h>
#include <rw/tvordvec.h>
#include <rw/rwfile.h>
#include <rw/rstream.h>
#include <framework/MemBufInputSource.hpp>
int main(int argC, char* argV[])
{
// Initialize the XML4C system
try
{
XMLPlatformUtils::Initialize();
}
catch (const XMLException& toCatch)
{
cerr << "Error during initialization! :\n"
<< StrX(toCatch.getMessage()) << endl;
return 1;
}
// Instantiate the DOM parser.
DOMParser parser;
parser.setValidationScheme(DOMParser::Val_Auto);
parser.setDoNamespaces(false);
parser.setDoSchema(false);
// And create our error handler and install it
DOMCountErrorHandler errorHandler;
parser.setErrorHandler(&errorHandler);
const RWCString dummyId = "prodInfo"; // a dummy sys id that needed by
MemBufInputSource
try
{
cout << " parsing buffer .. " << endl;
parser.parse("testing.xml");
DOM_Document doc = parser.getDocument();
DOM_Element root = doc.getDocumentElement();
DOM_NodeList demodClock = root.getElementsByTagName(DOMString("Argument")
);
DOM_NodeList childlist;
if ( demodClock.getLength() == 1 )
{
cout << " Name of doemclock child node: " << (
((DOM_Element&)(demodClock.item(0)) ).getTagName()).transcode() << endl;
childlist = (demodClock.item(0)).getChildNodes();
}
else
{
cout << " Dup element" << endl;
return 1;
}
cout << " length: " << childlist.getLength() << endl;
for (int i = 0; i < childlist.getLength() ; i++)
{
cout << ( ((DOM_Element&)childlist.item(i)).getTagName() ).transcode()
<< endl;
}
} // end try
catch (const XMLException& toCatch)
{
return 1;
}
catch (const DOM_DOMException& toCatch)
{
return 1;
}
catch (...)
{
return 1;
}
// And call the termination method
XMLPlatformUtils::Terminate();
}
DOMCountErrorHandler::DOMCountErrorHandler() :
fSawErrors(false)
{
}
DOMCountErrorHandler::~DOMCountErrorHandler()
{
}
// ---------------------------------------------------------------------------
// DOMCountHandlers: Overrides of the SAX ErrorHandler interface
// ---------------------------------------------------------------------------
void DOMCountErrorHandler::error(const SAXParseException& e)
{
fSawErrors = true;
cerr << "\nError at file " << StrX(e.getSystemId())
<< ", line " << e.getLineNumber()
<< ", char " << e.getColumnNumber()
<< "\n Message: " << StrX(e.getMessage()) << endl;
}
void DOMCountErrorHandler::fatalError(const SAXParseException& e)
{
fSawErrors = true;
cerr << "\nFatal Error at file " << StrX(e.getSystemId())
<< ", line " << e.getLineNumber()
<< ", char " << e.getColumnNumber()
<< "\n Message: " << StrX(e.getMessage()) << endl;
}
void DOMCountErrorHandler::warning(const SAXParseException& e)
{
cerr << "\nWarning at file " << StrX(e.getSystemId())
<< ", line " << e.getLineNumber()
<< ", char " << e.getColumnNumber()
<< "\n Message: " << StrX(e.getMessage()) << endl;
}
void DOMCountErrorHandler::resetErrors()
{
fSawErrors = false;
}
void preprocess(RWTValOrderedVector <RWCString>& bufferlist,
RWTValOrderedVector <RWCString>& msgNamelist)
{
cout << "enter preprocess.. " <<endl;
RWTValOrderedVector <RWCString> filelist;
char fileName[32];
cout << " please enter name for file: ";
cin >> fileName;
ifstream fin(fileName);
RWCString data;
RWCString messageName;
cout << " Here is the current content of file:"<< fileName << endl;
cout << " reading file name" << endl;
char ch;
// first read xmlfile name into file list
while(fin.get(ch))
{
if (ch != '\n')
{
data = data + (RWCString)(ch);
}
else
{
cout << "Data:" << data << endl;
filelist.insert(data);
RWCString clear ;
data = clear;
}
}
fin.close();
// then read corresponding message name into the messagenamelist
cout << " REading message" << endl;
ifstream fmsg ("message");
char ch2;
while(fmsg.get(ch2))
{
if (ch2 != '\n')
{
messageName = messageName + (RWCString)(ch2);
}
else
{
cout << "message:" << messageName << endl;
msgNamelist.insert(messageName);
RWCString clear ;
messageName = clear;
}
}
fmsg.close();
RWCString qoute = "\"";
RWCString str1 = "\<?xml version= " + qoute + "1.0" + qoute + " ?" + "\>" ;
// then for each file name in the filelist, read contents into bufferlist
RWCString buffer_data;
cout << " reading buffer" << endl;
for ( int i = 0; i < filelist.entries(); i ++)
{
cout << " in the loop" <<endl;
RWFile content(filelist[i]);
// create buffer to hold the file contents
char* buffer = new char[51079753];
int len = 51079753;
// read file content to buffer
content.Read(buffer);
buffer_data = buffer;
delete [] buffer;
cout << "buffer data.length: " << buffer_data.length() << endl;
bufferlist.insert(buffer_data);
RWCString clear;
buffer_data = clear;
/*while ( buffer[ len - 2] != 0)
{
buffer = 0;
len = len *2;
buffer = (char*)realloc(buffer, len*2);
cout << " not enough buffer, set len to : " << len << endl;
cout << " after RWFile " << endl;
content.SeekToBegin();
content.Read(buffer);
cout << "read the buffer"<<endl;
}
std::cout << " buffer: " << buffer << std::endl; */
}
}
<!ELEMENT test (CommandIndex, Argument)>
<!ATTLIST test return CDATA #FIXED "void">
<!ELEMENT CommandIndex EMPTY>
<!ATTLIST CommandIndex value CDATA #REQUIRED>
<!ELEMENT Argument (Record)+>
<!ATTLIST Argument datatype CDATA #FIXED "Record">
<!ELEMENT Record (ID, Clock)>
<!ATTLIST Record type CDATA #FIXED "struct">
<!ELEMENT ID EMPTY>
<!ATTLIST ID value CDATA #REQUIRED>
<!ELEMENT Clock EMPTY>
<!ATTLIST Clock value (ENABLE | DISABLE) "ENABLE">
<?xml version="1.0" standalone="no"?>
<!DOCTYPE test SYSTEM "testing.dtd">
<test>
<CommandIndex value = "TBD"/>
<Argument>
<Record>
<ID value = "1"/>
<Clock value = "ENABLE"/>
</Record>
<Record>
<ID value = "1"/>
<Clock value = "ENABLE"/>
</Record>
</Argument>
</test>
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