org.restlet.ext.odata.internal

Class FeedContentHandler<T>

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.restlet.ext.atom.FeedReader

org.restlet.ext.odata.internal.FeedContentHandler<T>

Type Parameters:

T - The type of the parsed entities.

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class FeedContentHandler<T>
extends FeedReader

Generic Content handler for Atom Feed that takes care of OData specific needs, such as parsing XML content from other namespaces than Atom. It generates entities based on the values discovered in the feed.

Author:

Thierry Boileau

Constructor Summary

Constructors

Constructor and Description
FeedContentHandler(Class<?> entityClass, EntityType entityType, Metadata metadata, Logger logger) Constructor.
FeedContentHandler(Class<?> entityClass, Metadata metadata, Logger logger) Constructor.

Method Summary

Modifier and Type	Method and Description
void	characters(char[] ch, int start, int length)
boolean	closeLink() Handle the end of a "link" element.
void	endContent(Content content) Called at the end of the XML block that defines the given content element.
void	endElement(String uri, String localName, String qName)
void	endEntry(Entry entry) Called at the end of the XML block that defines the given entry.
void	endLink(Link link) Called at the end of the XML block that defines the given link.
void	endPrefixMapping(String prefix)
int	getCount() Returns the value of the "count" tag, that is to say the size of the current entity set.
List<T>	getEntities() Returns the list of discovered entities.
void	startContent(Content content) Called when a new content element has been detected in the Atom document.
void	startElement(String uri, String localName, String qName, Attributes attrs)
void	startEntry(Entry entry) Called when a new entry has been detected in the Atom document.
void	startFeed(Feed feed) Called when a new feed has been detected in the Atom document.
void	startLink(Link link) Called when a new link has been detected in the Atom document.
void	startPrefixMapping(String prefix, String uri)

Methods inherited from class org.restlet.ext.atom.FeedReader

endDocument, endFeed, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

FeedContentHandler

public FeedContentHandler(Class<?> entityClass,
                          EntityType entityType,
                          Metadata metadata,
                          Logger logger)

Constructor.

Parameters:

entityClass - The class of the parsed entities.

entityType - The entity type of the parsed entities.

metadata - The metadata of the remote OData service.

logger - The logger.

FeedContentHandler

public FeedContentHandler(Class<?> entityClass,
                          Metadata metadata,
                          Logger logger)

Constructor.

Parameters:

entityClass - The class of the parsed entities.

metadata - The metadata of the remote OData service.

logger - The logger.

Method Detail

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

characters in class FeedReader

Throws:

SAXException

closeLink

public boolean closeLink()

Handle the end of a "link" element. Doesn't close link that belongs to inner associations!

Returns:

Returns true if the caller should not pop state.

endContent

public void endContent(Content content)

Description copied from class: FeedReader

Called at the end of the XML block that defines the given content element. By default, it relays the event to the extra handler.

Overrides:

endContent in class FeedReader

Parameters:

content - The current content element.

endElement

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

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class FeedReader

Throws:

SAXException

endEntry

public void endEntry(Entry entry)

Description copied from class: FeedReader

Called at the end of the XML block that defines the given entry.

Overrides:

endEntry in class FeedReader

Parameters:

entry - The current entry.

endLink

public void endLink(Link link)

Description copied from class: FeedReader

Called at the end of the XML block that defines the given link.

Overrides:

endLink in class FeedReader

Parameters:

link - The current link.

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

Specified by:

endPrefixMapping in interface ContentHandler

Overrides:

endPrefixMapping in class FeedReader

Throws:

SAXException

getCount

public int getCount()

Returns the value of the "count" tag, that is to say the size of the current entity set.

Returns:

The size of the current entity set, as specified by the Atom document.

getEntities

public List<T> getEntities()

Returns the list of discovered entities.

Returns:

The list of discovered entities.

startContent

public void startContent(Content content)

Description copied from class: FeedReader

Called when a new content element has been detected in the Atom document.

Overrides:

startContent in class FeedReader

Parameters:

content - The current content element.

startElement

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

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class FeedReader

Throws:

SAXException

startEntry

public void startEntry(Entry entry)

Description copied from class: FeedReader

Called when a new entry has been detected in the Atom document.

Overrides:

startEntry in class FeedReader

Parameters:

entry - The current entry.

startFeed

public void startFeed(Feed feed)

Description copied from class: FeedReader

Called when a new feed has been detected in the Atom document.

Overrides:

startFeed in class FeedReader

Parameters:

feed - The current feed.

startLink

public void startLink(Link link)

Description copied from class: FeedReader

Called when a new link has been detected in the Atom document.

Overrides:

startLink in class FeedReader

Parameters:

link - The current link.

startPrefixMapping

public void startPrefixMapping(String prefix,
                               String uri)
                        throws SAXException

Specified by:

startPrefixMapping in interface ContentHandler

Overrides:

startPrefixMapping in class FeedReader

Throws:

SAXException