Package com.yahoo.prelude.fastsearch

Class FastSearcher

java.lang.Object

com.yahoo.component.AbstractComponent

com.yahoo.component.chain.ChainedComponent

com.yahoo.processing.Processor

com.yahoo.search.Searcher

com.yahoo.search.cluster.PingableSearcher

com.yahoo.prelude.fastsearch.VespaBackEndSearcher

com.yahoo.prelude.fastsearch.FastSearcher

All Implemented Interfaces:

com.yahoo.component.Component, java.lang.Comparable<com.yahoo.component.Component>

public class FastSearcher
extends VespaBackEndSearcher

The searcher which forwards queries to fdispatch nodes, using the fnet/fs4 network layer.

Author:

bratseth

Nested Class Summary

Nested classes/interfaces inherited from class com.yahoo.prelude.fastsearch.VespaBackEndSearcher

VespaBackEndSearcher.FillHitsResult

Field Summary

Fields inherited from class com.yahoo.component.AbstractComponent

isDeconstructable

Constructor Summary

Constructors

Constructor	Description
FastSearcher(java.lang.String serverId, Dispatcher dispatcher, SummaryParameters docSumParams, ClusterParams clusterParams, DocumentdbInfoConfig documentdbInfoConfig)	Creates a Fastsearcher.

Method Summary

Modifier and Type	Method	Description
protected void	doPartialFill(Result result, java.lang.String summaryClass)	Perform a partial docsum fill for a temporary result representing a partition of the complete fill request.
Result	doSearch2(Query query, Execution execution)	Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.
protected boolean	isLoggingFine()
Pong	ping(Ping ping, Execution execution)	Pings the backend.
java.lang.String	toString()	Returns "searcher 'getId()'"
protected void	transformQuery(Query query)

Methods inherited from class com.yahoo.prelude.fastsearch.VespaBackEndSearcher

fill, fillHits, getDefaultDocsumClass, getDocsumDefinitionSet, getDocumentDatabase, getLogger, getName, getServerId, init, search, shutDown, summaryNeedsQuery

Methods inherited from class com.yahoo.search.Searcher

ensureFilled, process

Methods inherited from class com.yahoo.component.chain.ChainedComponent

getAnnotatedDependencies, getDefaultAnnotatedDependencies, getDependencies, initDependencies

Methods inherited from class com.yahoo.component.AbstractComponent

clone, compareTo, deconstruct, getClassName, getId, getIdString, hasInitializedId, initId, isDeconstructable, setIsDeconstructable

Methods inherited from class java.lang.Object

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

Constructor Detail

FastSearcher

public FastSearcher(java.lang.String serverId,
                    Dispatcher dispatcher,
                    SummaryParameters docSumParams,
                    ClusterParams clusterParams,
                    DocumentdbInfoConfig documentdbInfoConfig)

Creates a Fastsearcher.

Parameters:

serverId - the resource pool used to create direct connections to the local search nodes when bypassing the dispatch node

dispatcher - the dispatcher used (when enabled) to send summary requests over the rpc protocol. Eventually we will move everything to this protocol and never use dispatch nodes. At that point we won't need a cluster searcher above this to select and pass the right backend.

docSumParams - document summary parameters

clusterParams - the cluster number, and other cluster backend parameters

documentdbInfoConfig - document database parameters

Method Detail

ping

public Pong ping(Ping ping,
                 Execution execution)

Pings the backend. Does not propagate to other searchers.

Overrides:

ping in class PingableSearcher

transformQuery

protected void transformQuery(Query query)

Overrides:

transformQuery in class VespaBackEndSearcher

doSearch2

public Result doSearch2(Query query,
                        Execution execution)

Description copied from class: VespaBackEndSearcher

Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.

Specified by:

doSearch2 in class VespaBackEndSearcher

Parameters:

query - the query to search

execution - the query execution context

doPartialFill

protected void doPartialFill(Result result,
                             java.lang.String summaryClass)

Perform a partial docsum fill for a temporary result representing a partition of the complete fill request.

Specified by:

doPartialFill in class VespaBackEndSearcher

Parameters:

result - result containing a partition of the unfilled hits

summaryClass - the summary class we want to fill with

toString

public java.lang.String toString()

Description copied from class: Searcher

Returns "searcher 'getId()'"

Overrides:

toString in class Searcher

isLoggingFine

protected boolean isLoggingFine()

Overrides:

isLoggingFine in class VespaBackEndSearcher