Package org.apache.torque.generator.configuration.outlet

Class OutletConfigurationSaxHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.apache.torque.generator.configuration.outlet.OutletConfigurationSaxHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class OutletConfigurationSaxHandler
extends DefaultHandler

A SAX handler which parses Outlet configuration files. Relies on delegate handlers for parsing the configuration for the different outlet types.

Constructor Summary

Constructors

Constructor	Description
OutletConfigurationSaxHandler(ConfigurationProvider configurationProvider, UnitDescriptor unitDescriptor, ConfigurationHandlers configurationHandlers)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)
void	endElement(String uri, String localName, String rawName)
void	error(SAXParseException exception)
void	fatalError(SAXParseException exception)
List<MergepointMapping>	getMergepointMappings()	Returns all mergepoint mappings which were configured outside the outlets in the parsed outlet configuration file.
OutletSaxHandler	getOutletHandler(QualifiedName outletName, String outletType)	Returns the correct handler for a outlet tag.
List<Outlet>	getOutlets()	Returns all outlets which were configured in the parsed outlet configuration file.
static String	getOutletType(Attributes attributes)	Reads the outlet type from the attributes of the outlet XML tag.
InputSource	resolveEntity(String publicId, String systemId)	EntityResolver implementation.
void	startElement(String uri, String localName, String qName, Attributes attributes)
void	warning(SAXParseException exception)

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

endDocument, endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Constructor Detail

OutletConfigurationSaxHandler

public OutletConfigurationSaxHandler(ConfigurationProvider configurationProvider,
                                     UnitDescriptor unitDescriptor,
                                     ConfigurationHandlers configurationHandlers)

Constructor.

Parameters:

configurationProvider - The access object for the configuration files, not null.

unitDescriptor - The description of the generation unit, not null.

configurationHandlers - The available configuration handlers, not null.

Throws:

NullPointerException - if an argument is null.

Method Detail

getOutlets

public List<Outlet> getOutlets()

Returns all outlets which were configured in the parsed outlet configuration file.

Returns:

all created outlets, not null.

getMergepointMappings

public List<MergepointMapping> getMergepointMappings()

Returns all mergepoint mappings which were configured outside the outlets in the parsed outlet configuration file.

Returns:

all created mergepoint mappings, not null.

startElement

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

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

endElement

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

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Throws:

SAXException

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Throws:

SAXException

getOutletHandler

public OutletSaxHandler getOutletHandler(QualifiedName outletName,
                                         String outletType)
                                  throws SAXException

Returns the correct handler for a outlet tag. The method uses the type attribute to determine which handler is needed. I.e. it looks up the handler factory type in the outlet types, and asks the factory for a handler.

Parameters:

outletName - the name for the outlet which configuration will be read in by the generated SaxHandlerFactory, or null if the name of the outlet should be determined from the parsed XML.

outletType - the type of the outlet, not null.

Returns:

the handler for the tag, not null.

Throws:

SAXException - if no matching handler can be identified, or if an error occurs while creating the handler.

getOutletType

public static String getOutletType(Attributes attributes)
                            throws SAXException

Reads the outlet type from the attributes of the outlet XML tag.

Parameters:

attributes - the attributes of the XML tag, not null.

Returns:

the outlet type, not null.

Throws:

SAXException - if the xsi:type attribute is not set.

resolveEntity

public InputSource resolveEntity(String publicId,
                                 String systemId)
                          throws SAXException,
                                 IOException

EntityResolver implementation. Called by the XML parser

Specified by:

resolveEntity in interface EntityResolver

Overrides:

resolveEntity in class DefaultHandler

Parameters:

publicId - The public identifier of the external entity.

systemId - The system identifier of the external entity.

Returns:

an InputSource for the entity, or null if the URI is not known.

Throws:

SAXException

IOException

See Also:

ConfigurationEntityResolver.resolveEntity(String, String)

error

public void error(SAXParseException exception)
           throws SAXParseException

Specified by:

error in interface ErrorHandler

Overrides:

error in class DefaultHandler

Throws:

SAXParseException

fatalError

public void fatalError(SAXParseException exception)
                throws SAXParseException

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class DefaultHandler

Throws:

SAXParseException

warning

public void warning(SAXParseException exception)
             throws SAXParseException

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class DefaultHandler

Throws:

SAXParseException