com.nt.udc.io.xml

Class CXMLParser

java.lang.Object

com.nt.udc.io.xml.CXMLParser

public class CXMLParser
extends java.lang.Object

This class is used to parse XML input, obtained from a data-source.

Every time a root-element (@see CXMLElement) is encountered, the parser-processor is called upon to process the element. Any errors are reported.

Field Summary

Fields

Modifier and Type	Field and Description
protected CXMLElement	m_crtElement XML Element currently being processed
protected static int	m_debugLevel
protected CXMLElement[]	m_elementStack Stack of XML Elements.
protected int	m_elementStkIndex This is the index in the stack of elements.
protected IDataSource	m_iDataSource This member represents the data source for the XML stream.
protected ILogger	m_iLogger Object implementing ILogger interface - used for logging errors, warnings, etc.
protected IXMLParserProcessor	m_iParserProcessor Reference to the object called upon to process root-elements.
protected CXMLScanner	m_scanner This member represents the lexical analyzer

Constructor Summary

Constructors

Constructor and Description
CXMLParser(IDataSource iDataSource)
CXMLParser(IDataSource iDataSource, ILogger iLogger)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	debug(java.lang.String fName, java.lang.String msg)
protected void	error(java.lang.String fName, java.lang.String msg)
int	getCurrentLine()
static int	getDebugLevel()
boolean	hasEmptyStack()
protected boolean	initScanner() This function is used to initialize the scanner.
IXMLParserProcessor	iParserProcessor()
boolean	parse() This function is used to parse XML input obtained from the data-source.
static void	setDebugLevel(int debugLevel)
void	setIParserProcessor(IXMLParserProcessor iParserProcessor)

Methods inherited from class java.lang.Object

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

Field Detail

m_debugLevel

protected static int m_debugLevel

m_iLogger

protected ILogger m_iLogger

Object implementing ILogger interface - used for logging errors, warnings, etc.

m_iParserProcessor

protected IXMLParserProcessor m_iParserProcessor

Reference to the object called upon to process root-elements.

m_iDataSource

protected IDataSource m_iDataSource

This member represents the data source for the XML stream.

m_scanner

protected CXMLScanner m_scanner

This member represents the lexical analyzer

m_crtElement

protected CXMLElement m_crtElement

XML Element currently being processed

m_elementStack

protected CXMLElement[] m_elementStack

Stack of XML Elements. Contains the elements currently being defined

m_elementStkIndex

protected int m_elementStkIndex

This is the index in the stack of elements.

Constructor Detail

CXMLParser

public CXMLParser(IDataSource iDataSource,
          ILogger iLogger)
           throws java.lang.Exception

Parameters:

iDataSource - - Object implementing IDataSource interface - used for getting characters one by one

iLogger - - Object implementing ILogger interface - used for logging errors, warnings, etc.

Throws:

java.lang.Exception

CXMLParser

public CXMLParser(IDataSource iDataSource)
           throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getDebugLevel

public static final int getDebugLevel()

iParserProcessor

public final IXMLParserProcessor iParserProcessor()

getCurrentLine

public final int getCurrentLine()

hasEmptyStack

public final boolean hasEmptyStack()

setDebugLevel

public static void setDebugLevel(int debugLevel)

setIParserProcessor

public void setIParserProcessor(IXMLParserProcessor iParserProcessor)

parse

public boolean parse()

This function is used to parse XML input obtained from the data-source.

Returns:

true if successful, false otherwise.

initScanner

protected boolean initScanner()

This function is used to initialize the scanner.

Returns:

true if successful, false otherwise

error

protected void error(java.lang.String fName,
         java.lang.String msg)

debug

protected void debug(java.lang.String fName,
         java.lang.String msg)