Package org.apache.solr.handler.component

Class ResponseLogComponent

java.lang.Object

org.apache.solr.handler.component.SearchComponent

org.apache.solr.handler.component.ResponseLogComponent

All Implemented Interfaces:

AutoCloseable, SolrInfoBean, SolrMetricProducer, NamedListInitializedPlugin

public class ResponseLogComponent
extends SearchComponent

Adds to the log file the document IDs that are sent in the query response. If document scores are available in the response (by adding the pseudo- column 'score' to the field list) then each document ID will be followed by its score, as in:

 "... hits=55 responseLog=22:0.71231794,44:0.61231794 status=0 ..."
 

Add it to a requestHandler in solrconfig.xml like this:

 <searchComponent name="responselog" class="solr.ResponseLogComponent"/>

 <requestHandler name="/select" class="solr.SearchHandler">
   <lst name="defaults">

     ...

   </lst>
   <arr name="components">
     <str>responselog</str>
   </arr>
 </requestHandler>

It can then be enabled at query time by supplying

responseLog=true

query parameter.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.core.SolrInfoBean

SolrInfoBean.Category, SolrInfoBean.Group

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMPONENT_NAME

Fields inherited from class org.apache.solr.handler.component.SearchComponent

solrMetricsContext, standard_components

Fields inherited from interface org.apache.solr.metrics.SolrMetricProducer

CATEGORY_ATTR, HANDLER_ATTR, NAME_ATTR, OPERATION_ATTR, PLUGIN_NAME_ATTR, RESULT_ATTR, TYPE_ATTR

Constructor Summary

Constructors

Constructor	Description
ResponseLogComponent()

Method Summary

Modifier and Type	Method	Description
String	getDescription()	Simple one or two line description
void	prepare(ResponseBuilder rb)	Prepare the response.
void	process(ResponseBuilder rb)	Process the request for this component
protected void	processIds(ResponseBuilder rb, DocList dl, IndexSchema schema, SolrIndexSearcher searcher)
protected void	processScores(ResponseBuilder rb, DocList dl, IndexSchema schema, SolrIndexSearcher searcher)

Methods inherited from class org.apache.solr.handler.component.SearchComponent

distributedProcess, finishStage, getCategory, getName, getSolrMetricsContext, handleResponses, initializeMetrics, modifyRequest, setName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.util.plugin.NamedListInitializedPlugin

init

Methods inherited from interface org.apache.solr.metrics.SolrMetricProducer

close

Field Details

COMPONENT_NAME

public static final String COMPONENT_NAME

See Also:

• Constant Field Values

Constructor Details

ResponseLogComponent

public ResponseLogComponent()

Method Details

prepare

public void prepare(ResponseBuilder rb)
             throws IOException

Description copied from class: SearchComponent

Prepare the response. Guaranteed to be called before any SearchComponent SearchComponent.process(org.apache.solr.handler.component.ResponseBuilder) method. Called for every incoming request.

The place to do initialization that is request dependent.

Specified by:

prepare in class SearchComponent

Parameters:

rb - The ResponseBuilder

Throws:

IOException - If there is a low-level I/O error.

process

public void process(ResponseBuilder rb)
             throws IOException

Description copied from class: SearchComponent

Process the request for this component

Specified by:

process in class SearchComponent

Parameters:

rb - The ResponseBuilder

Throws:

IOException - If there is a low-level I/O error.

processIds

protected void processIds(ResponseBuilder rb,
 DocList dl,
 IndexSchema schema,
 SolrIndexSearcher searcher)
                   throws IOException

Throws:

IOException

processScores

protected void processScores(ResponseBuilder rb,
 DocList dl,
 IndexSchema schema,
 SolrIndexSearcher searcher)
                      throws IOException

Throws:

IOException

getDescription

public String getDescription()

Description copied from interface: SolrInfoBean

Simple one or two line description

Specified by:

getDescription in interface SolrInfoBean

Specified by:

getDescription in class SearchComponent