com.neurosys.feeds.rss2.etl

Class RSS2ChannelFeed<R extends RSS2Item>

java.lang.Object

com.neurosys.feeds.etl.AbstractFeed<StringBuilder,R>

com.neurosys.feeds.rss2.etl.RSS2ChannelFeed<R>

All Implemented Interfaces:

Process, Feed<StringBuilder,R>, Serializable, Supplier<StringBuilder>, org.apache.commons.collections.Transformer

public class RSS2ChannelFeed<R extends RSS2Item>
extends AbstractFeed<StringBuilder,R>

Generate the RSS2 Feed (XML) based on RSS2Channel and RSS2Items

Author:

Arjun Dhar

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.neurosys.etl.process.Process

Process.Event, Process.EventPoint

Field Summary

Fields inherited from class com.neurosys.feeds.etl.AbstractFeed

consumer, itemsSuppliers, subFeedConsumers, subFeedSuppliers

Constructor Summary

Constructors

Constructor and Description
RSS2ChannelFeed()

Method Summary

Modifier and Type	Method and Description
protected void	dedupe(R item)
protected void	extendItem(R item, StringBuilder sb) Add other tags based on custom/extended schema
StringBuilder	get()
RSS2Channel	getChannel() Details about the channel
void	init()
void	setChannel(RSS2Channel channel) Details about the channel
protected StringBuilder	writeBaseItem(R item, StringBuilder feed) Write the base Item for the FeedItem
protected void	writeChannelData(StringBuilder feed)
void	writeItemToConsumer(StringBuilder feed, StringBuilder itemOut) On each Item elment creation, write/pipe it to a Consumer
protected String	xmlSchemaHeader() Since RSS can be extended and multiple versions can exist.

Methods inherited from class com.neurosys.feeds.etl.AbstractFeed

getConsumer, getItemsSuppliers, getSubFeedConsumers, getSubFeedSuppliers, setConsumer, setItemsSuppliers, setSubFeedConsumers, setSubFeedSuppliers, writeItems

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.neurosys.feeds.etl.Feed

transform

Constructor Detail

RSS2ChannelFeed

public RSS2ChannelFeed()

Method Detail

init

@PostConstruct
public void init()

xmlSchemaHeader

protected String xmlSchemaHeader()

Since RSS can be extended and multiple versions can exist. This is default : <?xml version=\"1.0\" encoding=\"UTF-8\" ?><rss version=\"2.0\"> Example alternate:

Returns:

String

get

public StringBuilder get()

writeChannelData

protected void writeChannelData(StringBuilder feed)

writeBaseItem

protected StringBuilder writeBaseItem(R item,
                                      StringBuilder feed)
                               throws Continue

Description copied from class: AbstractFeed

Write the base Item for the FeedItem

Specified by:

writeBaseItem in class AbstractFeed<StringBuilder,R extends RSS2Item>

Parameters:

item - as FeedItem type

feed - as the feed being written

Returns:

the contribution to the feed due to this unit item

Throws:

Continue

writeItemToConsumer

public void writeItemToConsumer(StringBuilder feed,
                                StringBuilder itemOut)

Description copied from interface: Feed

On each Item elment creation, write/pipe it to a Consumer

itemOut - in type

extendItem

protected void extendItem(R item,
                          StringBuilder sb)

Add other tags based on custom/extended schema

Parameters:

item - as RSS2Item

sb - as StringBuilder

See Also:

xmlSchemaHeader(), for sample

dedupe

protected void dedupe(R item)
               throws Continue

Throws:

Continue

getChannel

public RSS2Channel getChannel()

Details about the channel

setChannel

public void setChannel(RSS2Channel channel)

Details about the channel