com.screenscraper.util.retry

Class EmptyRetryPolicy

java.lang.Object

com.screenscraper.util.retry.AbstractRetryPolicy

com.screenscraper.util.retry.EmptyRetryPolicy

All Implemented Interfaces:

RetryPolicy

public final class EmptyRetryPolicy
extends AbstractRetryPolicy

No Description Author: Mike Date: 2/13/12 Time: 5:00 PM

Field Summary

Fields inherited from class com.screenscraper.util.retry.AbstractRetryPolicy

errorOutputMap, maxNumberOfRetries, resetReferrerBeforeRescrape, resetSessionVariablesBeforeRescrape, scrapingSession, scriptContext, theScrapeableFile

Constructor Summary

Constructors

Constructor and Description
EmptyRetryPolicy() Builds an empty retry policy that does nothing (in case you set a session level one, but don't want to use it for a file)

Method Summary

Modifier and Type	Method and Description
AbstractRetryPolicy	duplicate() Duplicates this retry policy, copying any needed values to the new AbstractRetryPolicy.
void	runOnError() Runs this code when the page had an error.

Methods inherited from class com.screenscraper.util.retry.AbstractRetryPolicy

getErrorChecksMap, getMaxRetryAttempts, getScriptContext, isError, resetReferrerBeforeRescrape, resetSessionVariablesBeforeRescrape, runOnAllAttemptsFailed, setMaxNumberOfRetries, setResetReferrerBeforeRescrape, setResetSessionVariablesBeforeRescrape, setScrapeableFile, setScrapingSession, setScriptContext, shouldLogErrors

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyRetryPolicy

public EmptyRetryPolicy()

Builds an empty retry policy that does nothing (in case you set a session level one, but don't want to use it for a file)

Method Detail

runOnError

public void runOnError()
                throws java.lang.Exception

Description copied from interface: RetryPolicy

Runs this code when the page had an error. This could include things such as rotating the proxy. This will be run AFTER resetting the referrer and any session variables. In this way you can manually adjust values if needed but not have the side effects from extractors that may have modified values from this scrapeable file

Throws:

java.lang.Exception - If something goes wrong while executing this method

duplicate

public AbstractRetryPolicy duplicate()

Description copied from class: AbstractRetryPolicy

Duplicates this retry policy, copying any needed values to the new AbstractRetryPolicy. Duplicating a retry policy allows for safe multithreading. Returns null if the policy should not be duplicated for whatever reason.

Note that the copy can share internal references if necessary for the functionality of the policy. For example, if the policy is tracking total number of failures it may have a shared AtomicInteger reference for counting, which is passed in to the duplicate policy by reference. Therefore, duplicate isn't necessarily an independent duplicate. It should be noted though that a "duplicate" copy of the policy is used for each scrapeable file when called

Overrides:

duplicate in class AbstractRetryPolicy

Returns:

A new retry policy that performs the same functions as the current policy, or null if by nature of the policy it cannot be duplicated.