edu.berkeley.cs.db.yfilterplus.xmltree
Class XMLTree

java.lang.Object
  |
  +--org.xml.sax.helpers.DefaultHandler
        |
        +--edu.berkeley.cs.db.yfilterplus.xmltree.XMLTree

All Implemented Interfaces:

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

public class XMLTree

extends org.xml.sax.helpers.DefaultHandler

Field Summary

protected java.util.Stack	m_contextPath
protected int	m_eventId
protected java.util.Hashtable	m_eventIndex
protected java.util.ArrayList	m_eventSequence
protected boolean	m_indexing
protected java.io.PrintStream	m_out
protected boolean	m_trace

Constructor Summary

XMLTree(java.util.Stack contextPath)

XMLTree(java.lang.String filename)

XMLTree(java.lang.String filename, boolean dictionaryEncodingNeeded, java.util.HashMap dictionary)

XMLTree(java.io.StringReader in)

XMLTree(java.io.StringReader in, boolean dictionaryEncodingNeeded, java.util.HashMap dictionary)

Method Summary

double	analyzeXMLTree(int[] lengthArray, int[] depthArray, int index) this function measures(a) the doc length, (b) the maximal depth, and (c) the average path depth for the current xml tree.
void	characters(char[] ch, int start, int count) DocumentHandler :: characters:
void	endDocument()
void	endElement(java.lang.String uri, java.lang.String local, java.lang.String eleName) DocumentHandler :: end element:
java.util.Hashtable	getEventIndex()
java.util.ArrayList	getEvents()
static void	main(java.lang.String[] args)
void	print()
void	startDocument()
void	startElement(java.lang.String uri, java.lang.String local, java.lang.String elementName, org.xml.sax.Attributes attrs) DocumentHandler :: start element:
protected void	startParsing(java.lang.String filename)
protected void	startParsing(java.io.StringReader in)

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

endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Field Detail

m_eventIndex

protected java.util.Hashtable m_eventIndex

m_eventSequence

protected java.util.ArrayList m_eventSequence

m_indexing

protected boolean m_indexing

m_contextPath

protected java.util.Stack m_contextPath

m_eventId

protected int m_eventId

m_trace

protected boolean m_trace

m_out

protected java.io.PrintStream m_out

Constructor Detail

XMLTree

public XMLTree(java.io.StringReader in)

XMLTree

public XMLTree(java.io.StringReader in,
               boolean dictionaryEncodingNeeded,
               java.util.HashMap dictionary)

XMLTree

public XMLTree(java.lang.String filename)

XMLTree

public XMLTree(java.lang.String filename,
               boolean dictionaryEncodingNeeded,
               java.util.HashMap dictionary)

XMLTree

public XMLTree(java.util.Stack contextPath)

Method Detail

startParsing

protected void startParsing(java.io.StringReader in)

startParsing

protected void startParsing(java.lang.String filename)

startDocument

public void startDocument()

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

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

startElement

public void startElement(java.lang.String uri,
                         java.lang.String local,
                         java.lang.String elementName,
                         org.xml.sax.Attributes attrs)

DocumentHandler :: start element:

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

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

characters

public void characters(char[] ch,
                       int start,
                       int count)

DocumentHandler :: characters:

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

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

endElement

public void endElement(java.lang.String uri,
                       java.lang.String local,
                       java.lang.String eleName)

DocumentHandler :: end element:

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

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

endDocument

public void endDocument()

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

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

getEvents

public java.util.ArrayList getEvents()

getEventIndex

public java.util.Hashtable getEventIndex()

analyzeXMLTree

public double analyzeXMLTree(int[] lengthArray,
                             int[] depthArray,
                             int index)

this function measures(a) the doc length, (b) the maximal depth, and (c) the average path depth for the current xml tree. it writes (a) to the lengthArray, (b) to the depthArray, at the position specified by the input parameter index, and returns (c).

print

public void print()

main

public static void main(java.lang.String[] args)