admin
Class TagExtractor

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      admin.TagExtractor

All Implemented Interfaces:

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

public class TagExtractor
extends org.xml.sax.helpers.DefaultHandler

TagExtractor uses SAX to extract and manage the logical content of a document. Author: Chiara Rasi. chiara.rasi(at)istge.it 04-10-2007

Constructor Summary

TagExtractor()

TagExtractor(JspWriter out)
Takes a JspWriter as input from the JSP page that calls this method.

Method Summary

void	characters(char[] ch, int start, int length) Receive notification of character data.
void	endDocument() Receive notification of the end of a document.
void	endElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qualifiedName) Receive notification of the end of an element.
java.lang.String	launch(java.lang.String path) Launches the parsing of the XML workflow document.
static void	main(java.lang.String[] args) Main class for test purposes.
void	startDocument() The beginning of the XML workflow document.
void	startElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qualifiedName, org.xml.sax.Attributes atts) When a XML tag is open this method calls the class GetWfInfo and values such as "workflowdescription","author","title",sources,sinks,semanticTypes,processors's data are captured.

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

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

Constructor Detail

TagExtractor

public TagExtractor(JspWriter out)

Takes a JspWriter as input from the JSP page that calls this method.

TagExtractor

public TagExtractor()

Method Detail

startDocument

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

The beginning of the XML workflow document.

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

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

Throws:

org.xml.sax.SAXException

startElement

public void startElement(java.lang.String namespaceURI,
                         java.lang.String localName,
                         java.lang.String qualifiedName,
                         org.xml.sax.Attributes atts)

When a XML tag is open this method calls the class GetWfInfo and values such as "workflowdescription","author","title",sources,sinks,semanticTypes,processors's data are captured.

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

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

endElement

public void endElement(java.lang.String namespaceURI,
                       java.lang.String localName,
                       java.lang.String qualifiedName)

Receive notification of the end of an element.

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

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

characters

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

Receive notification of character data.

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

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

endDocument

public void endDocument()

Receive notification of the end of a document.

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

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

launch

public java.lang.String launch(java.lang.String path)

Launches the parsing of the XML workflow document. "path" is the path to the document.

main

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

Main class for test purposes.