com.yahoo.vespa.streamingvisitors

Class VdsStreamingSearcher

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.vespa.streamingvisitors.VdsStreamingSearcher

All Implemented Interfaces:

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

public class VdsStreamingSearcher
extends VespaBackEndSearcher

The searcher which forwards queries to storage nodes using visiting. The searcher is a visitor client responsible for starting search visitors in storage and collecting and merging the results.

Author:

baldersheim, Ulf Carlin

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	VdsStreamingSearcher.VdsVisitorFactory

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

VespaBackEndSearcher.FillHitsResult

Field Summary

Fields

Modifier and Type	Field and Description
private static Logger	log
private com.yahoo.messagebus.routing.Route	route
private String	searchClusterConfigId The configId used to access the searchcluster.
private String	storageClusterRouteSpec The route to the storage cluster.
static String	STREAMING_STATISTICS
private static com.yahoo.processing.request.CompoundName	streamingGroupname
private static com.yahoo.processing.request.CompoundName	streamingSelection
private static com.yahoo.processing.request.CompoundName	streamingUserid
private VisitorFactory	visitorFactory

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

cacheControl, PACKET_COMPRESSION_LIMIT, PACKET_COMPRESSION_TYPE, TRACE_DISABLE

Fields inherited from class com.yahoo.component.AbstractComponent

isDeconstructable

Constructor Summary

Constructors

Constructor and Description
VdsStreamingSearcher()
VdsStreamingSearcher(VisitorFactory visitorFactory)

Method Summary

Modifier and Type	Method and Description
private FastHit	buildSummaryHit(Query query, com.yahoo.vdslib.SearchResult.Hit hit)
protected void	doPartialFill(Result result, String summaryClass)
Result	doSearch2(Query query, QueryPacket queryPacket, CacheKey cacheKey, Execution execution) Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.
(package private) String	getSearchClusterConfigId()
(package private) String	getStorageClusterRouteSpec()
private static void	lazyTrace(Query query, int level, Object... args)
Pong	ping(Ping ping, Execution execution) Send a ping request downwards to probe if this searcher chain is in functioning order
void	setSearchClusterConfigId(String clusterName)
void	setStorageClusterRouteSpec(String storageClusterRouteSpec)
(package private) static boolean	verifyDocId(String id, Query query, boolean skippedEarlierResult)

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

addMetaInfo, cacheLookupTwoPhase, ensureInstanceOf, fill, fillHits, getCacheControl, getDefaultDocsumClass, getDocsumDefinitionSet, getDocumentDatabase, getName, getSearcher, hitIterator, init, isLoggingFine, search, summaryNeedsQuery, transformQuery

Methods inherited from class com.yahoo.search.Searcher

ensureFilled, getLogger, process, toString

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

Field Detail

streamingUserid

private static final com.yahoo.processing.request.CompoundName streamingUserid

streamingGroupname

private static final com.yahoo.processing.request.CompoundName streamingGroupname

streamingSelection

private static final com.yahoo.processing.request.CompoundName streamingSelection

STREAMING_STATISTICS

public static final String STREAMING_STATISTICS

See Also:

Constant Field Values

visitorFactory

private VisitorFactory visitorFactory

log

private static final Logger log

route

private com.yahoo.messagebus.routing.Route route

searchClusterConfigId

private String searchClusterConfigId

The configId used to access the searchcluster.

storageClusterRouteSpec

private String storageClusterRouteSpec

The route to the storage cluster.

Constructor Detail

VdsStreamingSearcher

public VdsStreamingSearcher()

VdsStreamingSearcher

public VdsStreamingSearcher(VisitorFactory visitorFactory)

Method Detail

getSearchClusterConfigId

String getSearchClusterConfigId()

getStorageClusterRouteSpec

String getStorageClusterRouteSpec()

setSearchClusterConfigId

public final void setSearchClusterConfigId(String clusterName)

setStorageClusterRouteSpec

public final void setStorageClusterRouteSpec(String storageClusterRouteSpec)

doPartialFill

protected void doPartialFill(Result result,
                             String summaryClass)

Specified by:

doPartialFill in class VespaBackEndSearcher

doSearch2

public Result doSearch2(Query query,
                        QueryPacket queryPacket,
                        CacheKey cacheKey,
                        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

queryPacket - the serialized query representation to pass to the search cluster

cacheKey - the cache key created from the query packet, or null if caching is not used

execution - the query execution context

buildSummaryHit

private FastHit buildSummaryHit(Query query,
                                com.yahoo.vdslib.SearchResult.Hit hit)

lazyTrace

private static void lazyTrace(Query query,
                              int level,
                              Object... args)

verifyDocId

static boolean verifyDocId(String id,
                           Query query,
                           boolean skippedEarlierResult)

ping

public Pong ping(Ping ping,
                 Execution execution)

Description copied from class: PingableSearcher

Send a ping request downwards to probe if this searcher chain is in functioning order

Overrides:

ping in class PingableSearcher