com.sun.syndication.fetcher.impl
Class AbstractFeedFetcher

java.lang.Object
  com.sun.syndication.fetcher.impl.AbstractFeedFetcher

All Implemented Interfaces:

FeedFetcher

Direct Known Subclasses:

HttpURLFeedFetcher

public abstract class AbstractFeedFetcher

extends Object

implements FeedFetcher

Field Summary

private Set	fetcherEventListeners
private String	userAgent
private boolean	usingDeltaEncoding

Fields inherited from interface com.sun.syndication.fetcher.FeedFetcher

DEFAULT_USER_AGENT

Constructor Summary

AbstractFeedFetcher()

Method Summary

void	addFetcherEventListener(FetcherListener listener) Add a FetcherListener.
static SyndFeed	combineFeeds(SyndFeed originalFeed, SyndFeed newFeed) Combine the entries in two feeds into a single feed.
protected void	fireEvent(String eventType, String urlStr)
protected void	fireEvent(String eventType, String urlStr, SyndFeed feed)
protected void	fireEvent(String eventType, URLConnection connection)
protected void	fireEvent(String eventType, URLConnection connection, SyndFeed feed)
String	getUserAgent()
protected void	handleErrorCodes(int responseCode) Handles HTTP error codes.
boolean	isUsingDeltaEncoding() Is this fetcher using rfc3229 delta encoding?
void	removeFetcherEventListener(FetcherListener listener) Remove a FetcherListener
void	setUserAgent(String string)
void	setUsingDeltaEncoding(boolean useDeltaEncoding) Turn on or off rfc3229 delta encoding See http://www.ietf.org/rfc/rfc3229.txt and http://bobwyman.pubsub.com/main/2004/09/using_rfc3229_w.html NOTE: This is experimental and feedback is welcome!
protected void	throw4XXError(int responseCode)
protected void	throwAuthenticationError(int responseCode)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sun.syndication.fetcher.FeedFetcher

retrieveFeed

Field Detail

fetcherEventListeners

private Set fetcherEventListeners

userAgent

private String userAgent

usingDeltaEncoding

private boolean usingDeltaEncoding

Constructor Detail

AbstractFeedFetcher

public AbstractFeedFetcher()

Method Detail

getUserAgent

public String getUserAgent()

Specified by:

getUserAgent in interface FeedFetcher

Returns:

the User-Agent currently being sent to servers

setUserAgent

public void setUserAgent(String string)

Specified by:

setUserAgent in interface FeedFetcher

Parameters:

string - The User-Agent to sent to servers

fireEvent

protected void fireEvent(String eventType,
                         URLConnection connection)

Parameters:

eventType - The event type to fire

connection - the current connection

fireEvent

protected void fireEvent(String eventType,
                         URLConnection connection,
                         SyndFeed feed)

Parameters:

eventType - The event type to fire

connection - the current connection

feed - The feed to pass to the event

fireEvent

protected void fireEvent(String eventType,
                         String urlStr)

Parameters:

eventType - The event type to fire

urlStr - the current url as a string

fireEvent

protected void fireEvent(String eventType,
                         String urlStr,
                         SyndFeed feed)

Parameters:

eventType - The event type to fire

urlStr - the current url as a string

feed - The feed to pass to the event

addFetcherEventListener

public void addFetcherEventListener(FetcherListener listener)

Description copied from interface: FeedFetcher

Add a FetcherListener.

The FetcherListener will receive an FetcherEvent when a Fetcher event (feed polled, retrieved, etc) occurs

Specified by:

addFetcherEventListener in interface FeedFetcher

Parameters:

listener - The FetcherListener to recieve the event

See Also:

FeedFetcher.addFetcherEventListener(com.sun.syndication.fetcher.FetcherListener)

removeFetcherEventListener

public void removeFetcherEventListener(FetcherListener listener)

Description copied from interface: FeedFetcher

Remove a FetcherListener

Specified by:

removeFetcherEventListener in interface FeedFetcher

Parameters:

listener - The FetcherListener to remove

See Also:

FeedFetcher.removeFetcherEventListener(com.sun.syndication.fetcher.FetcherListener)

isUsingDeltaEncoding

public boolean isUsingDeltaEncoding()

Description copied from interface: FeedFetcher

Is this fetcher using rfc3229 delta encoding?

Specified by:

isUsingDeltaEncoding in interface FeedFetcher

Returns:

Returns the useDeltaEncoding.

setUsingDeltaEncoding

public void setUsingDeltaEncoding(boolean useDeltaEncoding)

Description copied from interface: FeedFetcher

Turn on or off rfc3229 delta encoding

See http://www.ietf.org/rfc/rfc3229.txt and http://bobwyman.pubsub.com/main/2004/09/using_rfc3229_w.html

NOTE: This is experimental and feedback is welcome!

Specified by:

setUsingDeltaEncoding in interface FeedFetcher

Parameters:

useDeltaEncoding - The useDeltaEncoding to set.

handleErrorCodes

protected void handleErrorCodes(int responseCode)
                         throws FetcherException

Handles HTTP error codes.

Parameters:

responseCode - the HTTP response code

Throws:

FetcherException - if response code is in the range 400 to 599 inclusive

throw4XXError

protected void throw4XXError(int responseCode)
                      throws FetcherException

Throws:

FetcherException

throwAuthenticationError

protected void throwAuthenticationError(int responseCode)
                                 throws FetcherException

Throws:

FetcherException

combineFeeds

public static SyndFeed combineFeeds(SyndFeed originalFeed,
                                    SyndFeed newFeed)

Combine the entries in two feeds into a single feed.

The returned feed will have the same data as the newFeed parameter, with the entries from originalFeed appended to the end of its entries.

Parameters:

originalFeed -

newFeed -

Returns:

the combined SyndFeed