Package org.webharvest.runtime

Class Scraper

java.lang.Object

org.webharvest.runtime.Scraper

All Implemented Interfaces:

WebScraper

public class Scraper
extends Object
implements WebScraper

Basic runtime class.

Constructor Summary

Constructors

Constructor	Description
Scraper()	Default constructor for non-Guice usage.
Scraper(com.google.common.eventbus.EventBus eventBus)	Constructor for custom EventBus.

Method Summary

Modifier and Type	Method	Description
void	execute(DynamicScopeContext context)
void	informListenersAboutError(Exception e)	Inform all scraper listeners that an error has occured during scraper execution.
void	onExecutionFinished(ScraperExecutionEndEvent event)	Logs information about time of Scraper's execution on ScraperExecutionEndEvent.
void	onExecutionStopped(ScraperExecutionStoppedEvent event)	Logs information that Scraper's execution has been stopped.

Methods inherited from class java.lang.Object

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

Constructor Detail

Scraper

public Scraper()

Default constructor for non-Guice usage. Creates a new EventBus instance.

Scraper

public Scraper(com.google.common.eventbus.EventBus eventBus)

Constructor for custom EventBus.

Parameters:

eventBus - the EventBus to use

Method Detail

execute

public void execute(DynamicScopeContext context)

Specified by:

execute in interface WebScraper

onExecutionStopped

public void onExecutionStopped(ScraperExecutionStoppedEvent event)

Logs information that Scraper's execution has been stopped.

Parameters:

event - an instance of ScraperExecutionStoppedEvent

onExecutionFinished

public void onExecutionFinished(ScraperExecutionEndEvent event)

Logs information about time of Scraper's execution on ScraperExecutionEndEvent.

Parameters:

event - an instance of ScraperExecutionEndEvent

informListenersAboutError

public void informListenersAboutError(Exception e)

Inform all scraper listeners that an error has occured during scraper execution.

Specified by:

informListenersAboutError in interface WebScraper