Java Doc for RuntimeLimitEnforcer.java in  » Web-Crawler » heritrix » org » archive » crawler » prefetch » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Crawler » heritrix » org.archive.crawler.prefetch 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.archive.crawler.framework.Processor
   org.archive.crawler.prefetch.RuntimeLimitEnforcer

RuntimeLimitEnforcer
public class RuntimeLimitEnforcer extends Processor implements FetchStatusCodes(Code)
A processor to enforce runtime limits on crawls.

This processor extends and improves on the 'max-time' capability of Heritrix. Essentially, the 'Terminate job' option functions the same way as 'max-time'. The processor however also enables pausing when the runtime is exceeded and the blocking of all URIs.

  1. Pause job - Pauses the crawl. A change (increase) to the runtime duration will make it pausible to resume the crawl. Attempts to resume the crawl without modifying the run time will cause it to be immediately paused again.
  2. Terminate job - Terminates the job. Equivalent to using the max-time setting on the CrawlController.
  3. Block URIs - Blocks each URI with an -5002 (blocked by custom processor) fetch status code. This will cause all the URIs queued to wind up in the crawl.log.
    1. The processor allows variable runtime based on host (or other override/refinement criteria) however using such overrides only makes sense when using 'Block URIs' as pause and terminate will have global impact once encountered anywhere.
      author:
         Kristinn Sigurðsson



Field Summary
final public static  StringATTR_END_OPERATION
    
final public static  StringATTR_RUNTIME_SECONDS
    
final protected static  String[]AVAILABLE_END_OPERATIONS
    
final protected static  StringDEFAULT_END_OPERATION
    
final protected static  longDEFAULT_RUNTIME_SECONDS
    
final protected static  StringOP_BLOCK_URIS
    
final protected static  StringOP_PAUSE
    
final protected static  StringOP_TERMINATE
    
protected  Loggerlogger
    

Constructor Summary
public  RuntimeLimitEnforcer(String name)
    

Method Summary
protected  longgetRuntime(CrawlURI curi)
     Returns the amount of time to allow the crawl to run before this processor interrupts.
protected  voidinnerProcess(CrawlURI curi)
    

Field Detail
ATTR_END_OPERATION
final public static String ATTR_END_OPERATION(Code)



ATTR_RUNTIME_SECONDS
final public static String ATTR_RUNTIME_SECONDS(Code)



AVAILABLE_END_OPERATIONS
final protected static String[] AVAILABLE_END_OPERATIONS(Code)



DEFAULT_END_OPERATION
final protected static String DEFAULT_END_OPERATION(Code)



DEFAULT_RUNTIME_SECONDS
final protected static long DEFAULT_RUNTIME_SECONDS(Code)



OP_BLOCK_URIS
final protected static String OP_BLOCK_URIS(Code)



OP_PAUSE
final protected static String OP_PAUSE(Code)



OP_TERMINATE
final protected static String OP_TERMINATE(Code)



logger
protected Logger logger(Code)




Constructor Detail
RuntimeLimitEnforcer
public RuntimeLimitEnforcer(String name)(Code)




Method Detail
getRuntime
protected long getRuntime(CrawlURI curi)(Code)
Returns the amount of time to allow the crawl to run before this processor interrupts. the amount of time in milliseconds.



innerProcess
protected void innerProcess(CrawlURI curi) throws InterruptedException(Code)



Fields inherited from org.archive.crawler.framework.Processor
final public static String ATTR_DECIDE_RULES(Code)(Java Doc)
final public static String ATTR_ENABLED(Code)(Java Doc)
protected String attrDecideRules(Code)(Java Doc)

Methods inherited from org.archive.crawler.framework.Processor
protected void checkForInterrupt() throws InterruptedException(Code)(Java Doc)
protected void finalTasks()(Code)(Java Doc)
public CrawlController getController()(Code)(Java Doc)
protected DecideRule getDecideRule(Object o)(Code)(Java Doc)
public Processor getDefaultNextProcessor(CrawlURI curi)(Code)(Java Doc)
protected void initialTasks()(Code)(Java Doc)
protected void innerProcess(CrawlURI curi) throws InterruptedException(Code)(Java Doc)
protected void innerRejectProcess(CrawlURI curi) throws InterruptedException(Code)(Java Doc)
protected boolean isContentToProcess(CrawlURI curi)(Code)(Java Doc)
protected boolean isExpectedMimeType(String contentType, String expectedPrefix)(Code)(Java Doc)
protected boolean isHttpTransactionContentToProcess(CrawlURI curi)(Code)(Java Doc)
public void kickUpdate()(Code)(Java Doc)
final public void process(CrawlURI curi) throws InterruptedException(Code)(Java Doc)
public String report()(Code)(Java Doc)
protected boolean rulesAccept(Object o)(Code)(Java Doc)
protected boolean rulesAccept(DecideRule rule, Object o)(Code)(Java Doc)
public void setDefaultNextProcessor(Processor nextProcessor)(Code)(Java Doc)
public Processor spawn(int serialNum)(Code)(Java Doc)

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