Class Digester

java.lang.Object

org.xml.sax.helpers.XMLFilterImpl

org.frankframework.xml.FullXmlFilter

org.frankframework.configuration.digester.Digester

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware, ContentHandler, DTDHandler, EntityResolver, ErrorHandler, LexicalHandler, XMLFilter, XMLReader

public class Digester
extends FullXmlFilter
implements org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware

This class was made to be a replacement for the Apache Commons Digester, which was used in the old configuration parsing. The main reason for this replacement was to have better control over the parsing process, as well as ways to create beans.

The Digester works by having a list of DigesterRules, which are matched against the current element stack. When a rule is matched, the appropriate factory is used to create a bean. If the newly created bean is an ApplicationContext, it is pushed on the context stack and used for the creation of child elements.

Author:

Niels Meijer

Field Summary

Fields inherited from class FullXmlFilter

log

Constructor Summary

Constructors

Constructor	Description
Digester()

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()
void	characters(char[] ch, int start, int length)
void	endElement(String uri, String localName, String qName)
@Nullable Object	peek()
void	setApplicationContext(@NonNull org.springframework.context.ApplicationContext ac)	This Class is created via the Configuration context.
void	setParsedPatterns(Map<String, DigesterRule> parsedPatterns)	List of DigesterRules that apply to elements created through this Digester.
void	startElement(String uri, String localName, String qName, Attributes atts)

Methods inherited from class FullXmlFilter

comment, endCDATA, endDTD, endEntity, setContentHandler, setDocumentLocator, setParent, setParentsLexicalHandler, startCDATA, startDTD, startEntity

Methods inherited from class XMLFilterImpl

endDocument, endPrefixMapping, error, fatalError, getContentHandler, getDTDHandler, getEntityResolver, getErrorHandler, getFeature, getParent, getProperty, ignorableWhitespace, notationDecl, parse, parse, processingInstruction, resolveEntity, setDTDHandler, setEntityResolver, setErrorHandler, setFeature, setProperty, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class Object

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

Methods inherited from interface ContentHandler

declaration

Constructor Details

Digester

public Digester()

Method Details

setApplicationContext

public void setApplicationContext(@NonNull org.springframework.context.ApplicationContext ac)

This Class is created via the Configuration context. This is also the first element to populate.

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

setParsedPatterns

public void setParsedPatterns(Map<String, DigesterRule> parsedPatterns)

List of DigesterRules that apply to elements created through this Digester.

peek

public @Nullable Object peek()

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

Exception

startElement

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

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class XMLFilterImpl

Throws:

SAXException

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

characters in class XMLFilterImpl

Throws:

SAXException

endElement

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

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class XMLFilterImpl

Throws:

SAXException