ca.uhn.hl7v2.preparser
Class XML.HL7MessageHandler

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      ca.uhn.hl7v2.preparser.XML.HL7MessageHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

Enclosing class:

XML

protected static class XML.HL7MessageHandler
extends org.xml.sax.helpers.DefaultHandler

the SAXParser reports parsing events to an object of this class. We keep track of some parsing state, and the Properties object that we're supposed to write our data to.

Field Summary

Collection<DatumPath>	m_msgMask Specifies what parts of a message should be dumped to m_props.
Properties	m_props The data that is found while parsing, and which passes m_msgMask, will be dumped to m_props, as (DatumPath.toString() / text) key/value pairs
protected boolean	m_startedDocument

Constructor Summary

XML.HL7MessageHandler()

Method Summary

void	characters(char[] chars, int start, int length)
void	endDocument()
void	endElement(String uri, String localName, String qName)
void	error(SAXParseException e)
void	fatalError(SAXParseException e)
void	ignoreableWhitespace(char[] chars, int start, int length)
void	startDocument()
void	startElement(String uri, String localName, String qName, Attributes attributes)
protected void	tryToDumpDataToProps() try to dump whatever we've got in m_chars to m_props, with a key of m_curPath.toString().
protected static boolean	tryToGrowDocLocationFromElementName(StringBuffer msgID, DatumPath curPath, Map<String,Integer> segmentId2nextRepIdx, DatumPath lastDumpedPath, String elementName)

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

endPrefixMapping, 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_props

public Properties m_props

The data that is found while parsing, and which passes m_msgMask, will be dumped to m_props, as (DatumPath.toString() / text) key/value pairs

m_msgMask

public Collection<DatumPath> m_msgMask

Specifies what parts of a message should be dumped to m_props.

m_startedDocument

protected boolean m_startedDocument

Constructor Detail

XML.HL7MessageHandler

public XML.HL7MessageHandler()

Method Detail

startDocument

public void startDocument()
                   throws SAXException

Specified by:

startDocument in interface ContentHandler

Overrides:

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

Throws:

SAXException

endDocument

public void endDocument()
                 throws SAXException

Specified by:

endDocument in interface ContentHandler

Overrides:

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

Throws:

SAXException

startElement

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

Specified by:

startElement in interface ContentHandler

Overrides:

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

Throws:

SAXException

tryToGrowDocLocationFromElementName

protected static boolean tryToGrowDocLocationFromElementName(StringBuffer msgID,
                                                             DatumPath curPath,
                                                             Map<String,Integer> segmentId2nextRepIdx,
                                                             DatumPath lastDumpedPath,
                                                             String elementName)

endElement

public void endElement(String uri,
                       String localName,
                       String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

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

Throws:

SAXException

tryToDumpDataToProps

protected void tryToDumpDataToProps()

try to dump whatever we've got in m_chars to m_props, with a key of m_curPath.toString().

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

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

ignoreableWhitespace

public void ignoreableWhitespace(char[] chars,
                                 int start,
                                 int length)

error

public void error(SAXParseException e)

Specified by:

error in interface ErrorHandler

Overrides:

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

fatalError

public void fatalError(SAXParseException e)
                throws SAXException

Specified by:

fatalError in interface ErrorHandler

Overrides:

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

Throws:

SAXException