Java Doc for TransclusionDecideRule.java in  » Web-Crawler » heritrix » org » archive » crawler » deciderules » 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.deciderules 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.archive.crawler.deciderules.DecideRule
   org.archive.crawler.deciderules.ConfiguredDecideRule
      org.archive.crawler.deciderules.PredicatedDecideRule
         org.archive.crawler.deciderules.TransclusionDecideRule

TransclusionDecideRule
public class TransclusionDecideRule extends PredicatedDecideRule (Code)
Rule ACCEPTs any CrawlURIs whose path-from-seed ('hopsPath' -- see CandidateURI.getPathFromSeed ) ends with at least one, but not more than, the given number of non-navlink ('L') hops. Otherwise, if the path-from-seed is empty or if a navlink ('L') occurs within max-trans-hops of the tail of the path-from-seed, this rule returns PASS.

Thus, it allows things like embedded resources (frames/images/media) and redirects to be transitively included ('transcluded') in a crawl, even if they otherwise would not, for some reasonable number of hops (1-4).
See Also:    Transclusion
author:
   gojomo



Field Summary
final static  IntegerDEFAULT_MAX_SPECULATIVE_HOPS
     Default maximum speculative ('X') hops.
final static  IntegerDEFAULT_MAX_TRANS_HOPS
     Default maximum transitive hops -- any type Default access so can be accessed by unit tests.

Constructor Summary
public  TransclusionDecideRule(String name)
     Usual constructor.

Method Summary
protected  booleanevaluate(Object object)
     Evaluate whether given object is within the threshold number of transitive hops.
Parameters:
  object - Object to make decision on.

Field Detail
DEFAULT_MAX_SPECULATIVE_HOPS
final static Integer DEFAULT_MAX_SPECULATIVE_HOPS(Code)
Default maximum speculative ('X') hops. Default access so can be accessed by unit tests.



DEFAULT_MAX_TRANS_HOPS
final static Integer DEFAULT_MAX_TRANS_HOPS(Code)
Default maximum transitive hops -- any type Default access so can be accessed by unit tests.




Constructor Detail
TransclusionDecideRule
public TransclusionDecideRule(String name)(Code)
Usual constructor.
Parameters:
  name - Name of this DecideRule.




Method Detail
evaluate
protected boolean evaluate(Object object)(Code)
Evaluate whether given object is within the threshold number of transitive hops.
Parameters:
  object - Object to make decision on. true if the transitive hops >0 and <= max



Methods inherited from org.archive.crawler.deciderules.PredicatedDecideRule
public Object decisionFor(Object object)(Code)(Java Doc)
abstract protected boolean evaluate(Object object)(Code)(Java Doc)

Fields inherited from org.archive.crawler.deciderules.ConfiguredDecideRule
final public static String[] ALLOWED_TYPES(Code)(Java Doc)
final public static String ATTR_DECISION(Code)(Java Doc)

Methods inherited from org.archive.crawler.deciderules.ConfiguredDecideRule
public Object decisionFor(Object object)(Code)(Java Doc)
public Object singlePossibleNonPassDecision(Object object)(Code)(Java Doc)

Fields inherited from org.archive.crawler.deciderules.DecideRule
final public static String ACCEPT(Code)(Java Doc)
final public static String PASS(Code)(Java Doc)
final public static String REJECT(Code)(Java Doc)

Methods inherited from org.archive.crawler.deciderules.DecideRule
public Object decisionFor(Object object)(Code)(Java Doc)
public CrawlController getController()(Code)(Java Doc)
public void kickUpdate()(Code)(Java Doc)
public Object singlePossibleNonPassDecision(Object object)(Code)(Java Doc)

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