org.xBaseJ
Class XBaseXmlParser

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      org.xBaseJ.XBaseXmlParser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class XBaseXmlParser
extends org.xml.sax.helpers.DefaultHandler

This class is courtesy of the xBaseJ project: http://xbasej.sourceforge.net/ Copyright 1997-2007 - American Coders, LTD - Raleigh NC USA

 American Coders, Ltd
 P. O. Box 97462
 Raleigh, NC  27615  USA
 1-919-846-2014
 http://www.americancoders.com
 

Author:

Joe McVerry, American Coders Ltd.

Constructor Summary

XBaseXmlParser()
constructor, sets up SAX parser, turns off validation, turns on namespaces, sets up content handler and error handler as this object. sax exceptions go to System.err

Method Summary

void	characters(char[] ch, int start, int length) catches the element's value
void	endElement(String uri, String localName, String rawName) Method called by the SAX parser at the
void	error(SAXParseException e) catches error SAXParseExceptions this code causes exception to continue
void	fatalError(SAXParseException e) catches fatal SAXParseExceptions this code causes exception to continue
void	ignorableWhitespace(char[] ch, int start, int length) I use this to keep track of line #s
static void	main(String[] args) accepts on String parameter, filename to parse
void	parse(String inXMLFile) makes the SAX2 parser call
void	startElement(String uri, String localName, String rawName, Attributes attributes) method called for each xml element found.
void	warning(SAXParseException e) catches warning SAXParseExceptions this code sends exception to stdio and allows public classto continue

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XBaseXmlParser

public XBaseXmlParser()

constructor, sets up SAX parser, turns off validation, turns on namespaces, sets up content handler and error handler as this object. sax exceptions go to System.err

Method Detail

main

public static void main(String[] args)

accepts on String parameter, filename to parse

parse

public void parse(String inXMLFile)

makes the SAX2 parser call

Parameters:

inXMLFile - String of filename to parse

startElement

public void startElement(String uri,
                         String localName,
                         String rawName,
                         Attributes attributes)
                  throws SAXException

method called for each xml element found.
process logic

• based on the name of the element found
• for each pull appropriate attributes and construct object
• if owned by another class, and all are except for Standard, add it to its parents object

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

Parameters:

uri - URI of incoming file

localName - String of element's local name

rawName - String of element's raw name

attributes - Vector of the elements attributes

Throws:

SAXException - many possible exceptions

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

catches the element's value

Specified by:

characters in interface ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler

Parameters:

ch - char array of the current element value contents

start - int start position within the array

length - int of characters found so far

Throws:

SAXException - many possible

endElement

public void endElement(String uri,
                       String localName,
                       String rawName)
                throws SAXException

Method called by the SAX parser at the

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

Parameters:

uri - URI of incoming file

localName - String of element's local name

rawName - String of element's raw name

Throws:

SAXException - many possible

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)

I use this to keep track of line #s

Specified by:

ignorableWhitespace in interface ContentHandler

Overrides:

ignorableWhitespace in class org.xml.sax.helpers.DefaultHandler

Parameters:

ch - char array of found whitespaces

start - int start position in array

length - int length of what's been found

warning

public void warning(SAXParseException e)
             throws SAXException

catches warning SAXParseExceptions this code sends exception to stdio and allows public classto continue

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class org.xml.sax.helpers.DefaultHandler

Parameters:

e - SaxException object

Throws:

SAXException - exception

error

public void error(SAXParseException e)
           throws SAXException

catches error SAXParseExceptions this code causes exception to continue

Specified by:

error in interface ErrorHandler

Overrides:

error in class org.xml.sax.helpers.DefaultHandler

Parameters:

e - SaxException object

Throws:

SAXException - thrown

fatalError

public void fatalError(SAXParseException e)
                throws SAXException

catches fatal SAXParseExceptions this code causes exception to continue

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class org.xml.sax.helpers.DefaultHandler

Parameters:

e - SAXException object

Throws:

SAXException - thrown