org.apache.torque.engine.database.transform
Class XmlToData

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      org.apache.torque.engine.database.transform.XmlToData

All Implemented Interfaces:

org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class XmlToData

extends org.xml.sax.helpers.DefaultHandler

implements org.xml.sax.EntityResolver

A Class that is used to parse an input xml schema file and creates and AppData java structure.
It uses apache Xerces to do the xml parsing.

Version:

$Id: XmlToData.java,v 1.9 2002/10/08 18:17:06 mpoeschl Exp $

Author:

Leon Messerschmidt, Jason van Zyl, Martin Poeschl, Fedor Karpelevitch

Nested Class Summary

class	XmlToData.ColumnValue
class	XmlToData.DataRow

Field Summary

private java.util.List	data
private Database	database
private org.xml.sax.InputSource	dataDTD
private java.io.File	dtdFile
private java.lang.String	dtdFileName
private java.lang.String	errorMessage
private static javax.xml.parsers.SAXParserFactory	saxFactory

Constructor Summary

XmlToData(Database database, java.lang.String dtdFilePath)
Default custructor

Method Summary

void	error(org.xml.sax.SAXParseException spe) Error callback.
void	fatalError(org.xml.sax.SAXParseException spe) Fatal error callback.
org.xml.sax.InputSource	getInputSource(java.lang.String urlString) get an InputSource for an URL String
java.util.List	parseFile(java.lang.String xmlFile)
org.xml.sax.InputSource	resolveEntity(java.lang.String publicId, java.lang.String systemId) called by the XML parser
void	startElement(java.lang.String uri, java.lang.String localName, java.lang.String rawName, org.xml.sax.Attributes attributes) Handles opening elements of the xml file.
void	warning(org.xml.sax.SAXParseException spe) Warning callback.

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

characters, endDocument, endElement, endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Field Detail

database

private Database database

errorMessage

private java.lang.String errorMessage

data

private java.util.List data

dtdFileName

private java.lang.String dtdFileName

dtdFile

private java.io.File dtdFile

dataDTD

private org.xml.sax.InputSource dataDTD

saxFactory

private static javax.xml.parsers.SAXParserFactory saxFactory

Constructor Detail

XmlToData

public XmlToData(Database database,
                 java.lang.String dtdFilePath)
          throws java.net.MalformedURLException,
                 java.io.IOException

Default custructor

Method Detail

parseFile

public java.util.List parseFile(java.lang.String xmlFile)

startElement

public void startElement(java.lang.String uri,
                         java.lang.String localName,
                         java.lang.String rawName,
                         org.xml.sax.Attributes attributes)

Handles opening elements of the xml file.

Specified by:

startElement in interface org.xml.sax.ContentHandler

warning

public void warning(org.xml.sax.SAXParseException spe)

Warning callback.

Specified by:

warning in interface org.xml.sax.ErrorHandler

Parameters:

spe - The parse exception that caused the callback to be invoked.

error

public void error(org.xml.sax.SAXParseException spe)

Error callback.

Specified by:

error in interface org.xml.sax.ErrorHandler

Parameters:

spe - The parse exception that caused the callback to be invoked.

fatalError

public void fatalError(org.xml.sax.SAXParseException spe)

Fatal error callback.

Specified by:

fatalError in interface org.xml.sax.ErrorHandler

Parameters:

spe - The parse exception that caused the callback to be invoked.

resolveEntity

public org.xml.sax.InputSource resolveEntity(java.lang.String publicId,
                                             java.lang.String systemId)

called by the XML parser

Specified by:

resolveEntity in interface org.xml.sax.EntityResolver

Returns:

an InputSource for the database.dtd file

getInputSource

public org.xml.sax.InputSource getInputSource(java.lang.String urlString)

get an InputSource for an URL String

Parameters:

urlString -

Returns:

an InputSource for the URL String