org.apache.nutch.clustering.carrot2
Class NutchInputComponent

java.lang.Object
  org.carrot2.core.LocalComponentBase
      org.carrot2.core.LocalInputComponentBase
          org.apache.nutch.clustering.carrot2.NutchInputComponent

All Implemented Interfaces:

org.carrot2.core.LocalComponent, org.carrot2.core.LocalInputComponent

public class NutchInputComponent
extends org.carrot2.core.LocalInputComponentBase

An input component that ignores the query passed from the controller and instead looks for data stored in the request context. This enables us to reuse the same physical component implementation for data that has already been acquired from Nutch.

Field Summary

static String	NUTCH_INPUT_HIT_DETAILS_ARRAY
static String	NUTCH_INPUT_SUMMARIES_ARRAY

Fields inherited from class org.carrot2.core.LocalInputComponentBase

next

Fields inherited from interface org.carrot2.core.LocalInputComponent

PARAM_QUERY, PARAM_REQUESTED_RESULTS, PARAM_START_AT, PARAM_TOTAL_MATCHING_DOCUMENTS

Constructor Summary

NutchInputComponent(String defaultLanguage)
Creates an input component with the given default language code.

Method Summary

Set	getComponentCapabilities() Returns the capabilities provided by this component.
Set	getRequiredSuccessorCapabilities() Returns the capabilities required from the successor component.
void	setQuery(String query)
void	startProcessing(org.carrot2.core.RequestContext context) A callback hook that starts the processing.

Methods inherited from class org.carrot2.core.LocalInputComponentBase

endProcessing, flushResources, getRequestedResults, processingErrorOccurred, setNext, validate

Methods inherited from class org.carrot2.core.LocalComponentBase

getDescription, getIntFromRequestContext, getName, getProperty, getRequiredPredecessorCapabilities, init, setProperty, toSet, toSet, toSet

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.carrot2.core.LocalComponent

getDescription, getName, getRequiredPredecessorCapabilities, init, setProperty

Field Detail

NUTCH_INPUT_HIT_DETAILS_ARRAY

public static final String NUTCH_INPUT_HIT_DETAILS_ARRAY

See Also:

Constant Field Values

NUTCH_INPUT_SUMMARIES_ARRAY

public static final String NUTCH_INPUT_SUMMARIES_ARRAY

See Also:

Constant Field Values

Constructor Detail

NutchInputComponent

public NutchInputComponent(String defaultLanguage)

Creates an input component with the given default language code.

Method Detail

setQuery

public void setQuery(String query)

startProcessing

public void startProcessing(org.carrot2.core.RequestContext context)
                     throws org.carrot2.core.ProcessingException

A callback hook that starts the processing.

Specified by:

startProcessing in interface org.carrot2.core.LocalComponent

Overrides:

startProcessing in class org.carrot2.core.LocalInputComponentBase

Throws:

org.carrot2.core.ProcessingException

getComponentCapabilities

public Set getComponentCapabilities()

Returns the capabilities provided by this component.

Specified by:

getComponentCapabilities in interface org.carrot2.core.LocalComponent

Overrides:

getComponentCapabilities in class org.carrot2.core.LocalComponentBase

getRequiredSuccessorCapabilities

public Set getRequiredSuccessorCapabilities()

Returns the capabilities required from the successor component.

Specified by:

getRequiredSuccessorCapabilities in interface org.carrot2.core.LocalComponent

Overrides:

getRequiredSuccessorCapabilities in class org.carrot2.core.LocalComponentBase