nz.ac.waikato.mcennis.rat.parser.xmlHandler
Class LastFmArtistHandler

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      nz.ac.waikato.mcennis.rat.parser.xmlHandler.Handler
          nz.ac.waikato.mcennis.rat.parser.xmlHandler.LastFmArtistHandler

All Implemented Interfaces:

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

public class LastFmArtistHandler
extends Handler

Class that parses artist info from LastFM. It provides either null or an actor object depending on whether or not the actor existed in the LastFM database. If there are fewer than 3 similar artists, it is assumed that the artist name is noise and returns null.

Field Summary

java.util.Vector<java.lang.String>	artistList
static int	NAME
static int	START

Fields inherited from class nz.ac.waikato.mcennis.rat.parser.xmlHandler.Handler

properties, site

Constructor Summary

LastFmArtistHandler()
Creates a new instance of ArtistHandler

Method Summary

void	characters(char[] ch, int start, int length)
Handler	duplicate() Create a complete duplicate of this class
void	endDocument()
void	endElement(java.lang.String uri, java.lang.String localName, java.lang.String qName)
ParsedObject	get() Return the underlying parsed object
void	set(ParsedObject o) Set the underlying parsed object for parsing
void	setDocumentLocator(org.xml.sax.Locator locator)
void	startDocument()
void	startElement(java.lang.String uri, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes attributes)

Methods inherited from class nz.ac.waikato.mcennis.rat.parser.xmlHandler.Handler

check, check, error, fatalError, getName, getParameter, getParameter, init, setCrawler, setName, setProperties, warning

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

endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, skippedEntity, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Field Detail

artistList

public java.util.Vector<java.lang.String> artistList

NAME

public static final int NAME

See Also:

Constant Field Values

START

public static final int START

See Also:

Constant Field Values

Constructor Detail

LastFmArtistHandler

public LastFmArtistHandler()

Creates a new instance of ArtistHandler

Method Detail

startElement

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

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

startDocument

public void startDocument()
                   throws org.xml.sax.SAXException

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

endDocument

public void endDocument()
                 throws org.xml.sax.SAXException

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

endElement

public void endElement(java.lang.String uri,
                       java.lang.String localName,
                       java.lang.String qName)
                throws org.xml.sax.SAXException

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws org.xml.sax.SAXException

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

get

public ParsedObject get()

Description copied from class: Handler

Return the underlying parsed object

Specified by:

get in class Handler

Returns:

parsed object

duplicate

public Handler duplicate()

Description copied from class: Handler

Create a complete duplicate of this class

Specified by:

duplicate in class Handler

Returns:

deep copy of the original.

set

public void set(ParsedObject o)

Description copied from class: Handler

Set the underlying parsed object for parsing

Specified by:

set in class Handler

Parameters:

o - underlying parsed object

setDocumentLocator

public void setDocumentLocator(org.xml.sax.Locator locator)

Specified by:

setDocumentLocator in interface org.xml.sax.ContentHandler

Overrides:

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