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:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class XmlToData
extends DefaultHandler
implements EntityResolver

A Class that is used to parse an input xml schema file and creates and AppData java structure.

Version:

$Id: XmlToData.java,v 1.1 2007-10-21 07:57:26 abyrne Exp $

Author:

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

Nested Class Summary

class	XmlToData.ColumnValue
class	XmlToData.DataRow

Field Summary

private List<Object>	data
private Database	database
private File	dtdFile
private static org.apache.commons.logging.Log	log Logging class from commons.logging
private static SAXParserFactory	saxFactory

Constructor Summary

XmlToData(Database database, String dtdFilePath)
Default custructor

Method Summary

InputSource	getInputSource(String urlString) get an InputSource for an URL String
List<?>	parseFile(String xmlFile)
InputSource	resolveEntity(String publicId, String systemId) called by the XML parser
void	startElement(String uri, String localName, String rawName, Attributes attributes) Handles opening elements of the xml file.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

log

private static org.apache.commons.logging.Log log

Logging class from commons.logging

database

private Database database

data

private List<Object> data

dtdFile

private File dtdFile

saxFactory

private static SAXParserFactory saxFactory

Constructor Detail

XmlToData

public XmlToData(Database database,
                 String dtdFilePath)
          throws MalformedURLException,
                 IOException

Default custructor

Throws:

MalformedURLException

IOException

Method Detail

parseFile

public List<?> parseFile(String xmlFile)
                  throws Exception

Throws:

Exception

startElement

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

Handles opening elements of the xml file.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

resolveEntity

public InputSource resolveEntity(String publicId,
                                 String systemId)
                          throws SAXException

called by the XML parser

Specified by:

resolveEntity in interface EntityResolver

Overrides:

resolveEntity in class DefaultHandler

Returns:

an InputSource for the database.dtd file

Throws:

SAXException

getInputSource

public InputSource getInputSource(String urlString)
                           throws IOException

get an InputSource for an URL String

Parameters:

urlString -

Returns:

an InputSource for the URL String

Throws:

IOException