org.apache.solr.handler

Class RequestHandlerBase

java.lang.Object

org.apache.solr.handler.RequestHandlerBase

All Implemented Interfaces:

ApiSupport, SolrInfoMBean, NestedRequestHandler, SolrMetricProducer, SolrRequestHandler

Direct Known Subclasses:

AnalysisRequestHandlerBase, BlobHandler, CdcrRequestHandler, CollectionsHandler, ConfigSetsHandler, ContentStreamHandlerBase, CoreAdminHandler, DumpRequestHandler, FileFloatSource.ReloadCacheRequestHandler, GraphHandler, InfoHandler, LoggingHandler, LukeRequestHandler, MetricsHandler, MoreLikeThisHandler, NotFoundRequestHandler, PingRequestHandler, PluginInfoHandler, PropertiesRequestHandler, ReplicationHandler, SchemaHandler, SearchHandler, SecurityConfHandler, SegmentsInfoRequestHandler, ShowFileRequestHandler, SolrConfigHandler, SolrInfoMBeanHandler, SQLHandler, StreamHandler, SystemInfoHandler, ThreadDumpHandler, ZookeeperInfoHandler

public abstract class RequestHandlerBase
extends Object
implements SolrRequestHandler, SolrInfoMBean, SolrMetricProducer, NestedRequestHandler, ApiSupport

Nested Class Summary

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

SolrInfoMBean.Category, SolrInfoMBean.Group

Field Summary

Fields

Modifier and Type	Field and Description
protected SolrParams	appends
protected SolrParams	defaults
protected boolean	httpCaching
protected NamedList	initArgs
protected SolrParams	invariants

Fields inherited from interface org.apache.solr.request.SolrRequestHandler

TYPE

Constructor Summary

Constructors

Constructor and Description
RequestHandlerBase()

Method Summary

Modifier and Type	Method and Description
Collection<Api>	getApis() It is possible to support multiple v2 apis by a single requesthandler
SolrInfoMBean.Category	getCategory() Purpose of this Class
abstract String	getDescription() Simple one or two line description
URL[]	getDocs() Documentation URL list.
NamedList	getInitArgs()
String	getName() Simple common usage name, e.g.
PluginInfo	getPluginInfo()
static SolrRequestHandler	getRequestHandler(String handlerName, PluginBag<SolrRequestHandler> reqHandlers) Get the request handler registered to a given name.
static SolrParams	getSolrParamsFromNamedList(NamedList args, String key)
String	getSource() CVS Source, SVN Source, etc
NamedList<Object>	getStatistics() Any statistics this instance would like to be publicly available via the Solr Administration interface.
SolrRequestHandler	getSubHandler(String subPath) Return a RequestHandler to handle a subpath from the path this handler is registered.
String	getVersion() Simple common usage version, e.g.
void	handleRequest(SolrQueryRequest req, SolrQueryResponse rsp) Handles a query request, this method must be thread safe.
abstract void	handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp)
void	init(NamedList args) Initializes the SolrRequestHandler by creating three SolrParams named.
void	initializeMetrics(SolrMetricManager manager, String registryName, String scope) Initializes metrics specific to this producer
void	setPluginInfo(PluginInfo pluginInfo)

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.api.ApiSupport

registerV1, registerV2

Field Detail

initArgs

protected NamedList initArgs

defaults

protected SolrParams defaults

appends

protected SolrParams appends

invariants

protected SolrParams invariants

httpCaching

protected boolean httpCaching

Constructor Detail

RequestHandlerBase

public RequestHandlerBase()

Method Detail

init

public void init(NamedList args)

Initializes the SolrRequestHandler by creating three SolrParams named.

Name	Description
defaults	Contains all of the named arguments contained within the list element named "defaults".
appends	Contains all of the named arguments contained within the list element named "appends".
invariants	Contains all of the named arguments contained within the list element named "invariants".

Example:

 <lst name="defaults">
 <str name="echoParams">explicit</str>
 <str name="qf">text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0</str>
 <str name="mm">2<-1 5<-2 6<90%</str>
 <str name="bq">incubationdate_dt:[* TO NOW/DAY-1MONTH]^2.2</str>
 </lst>
 <lst name="appends">
 <str name="fq">inStock:true</str>
 </lst>

 <lst name="invariants">
 <str name="facet.field">cat</str>
 <str name="facet.field">manu_exact</str>
 <str name="facet.query">price:[* TO 500]</str>
 <str name="facet.query">price:[500 TO *]</str>
 </lst>
 

Specified by:

init in interface SolrRequestHandler

Parameters:

args - The NamedList to initialize from

See Also:

handleRequest(org.apache.solr.request.SolrQueryRequest, org.apache.solr.response.SolrQueryResponse), handleRequestBody(org.apache.solr.request.SolrQueryRequest, org.apache.solr.response.SolrQueryResponse), SolrPluginUtils.setDefaults(org.apache.solr.request.SolrQueryRequest, org.apache.solr.common.params.SolrParams, org.apache.solr.common.params.SolrParams, org.apache.solr.common.params.SolrParams), See also the example solrconfig.xml located in the Solr codebase (example/solr/conf).

initializeMetrics

public void initializeMetrics(SolrMetricManager manager,
                              String registryName,
                              String scope)

Description copied from interface: SolrMetricProducer

Initializes metrics specific to this producer

Specified by:

initializeMetrics in interface SolrMetricProducer

Parameters:

manager - an instance of SolrMetricManager

registryName - registry name where metrics are registered

scope - scope of the metrics (eg. handler name) to separate metrics of instances of the same component executing in different contexts

getSolrParamsFromNamedList

public static SolrParams getSolrParamsFromNamedList(NamedList args,
                                                    String key)

getInitArgs

public NamedList getInitArgs()

handleRequestBody

public abstract void handleRequestBody(SolrQueryRequest req,
                                       SolrQueryResponse rsp)
                                throws Exception

Throws:

Exception

handleRequest

public void handleRequest(SolrQueryRequest req,
                          SolrQueryResponse rsp)

Description copied from interface: SolrRequestHandler

Handles a query request, this method must be thread safe.

Information about the request may be obtained from req and response information may be set using rsp.

There are no mandatory actions that handleRequest must perform. An empty handleRequest implementation would fulfill all interface obligations.

Specified by:

handleRequest in interface SolrRequestHandler

getName

public String getName()

Description copied from interface: SolrInfoMBean

Simple common usage name, e.g. BasicQueryHandler, or fully qualified clas name.

Specified by:

getName in interface SolrInfoMBean

getDescription

public abstract String getDescription()

Description copied from interface: SolrInfoMBean

Simple one or two line description

Specified by:

getDescription in interface SolrInfoMBean

getSource

public String getSource()

Description copied from interface: SolrInfoMBean

CVS Source, SVN Source, etc

Specified by:

getSource in interface SolrInfoMBean

getVersion

public String getVersion()

Description copied from interface: SolrInfoMBean

Simple common usage version, e.g. 2.0

Specified by:

getVersion in interface SolrInfoMBean

getCategory

public SolrInfoMBean.Category getCategory()

Description copied from interface: SolrInfoMBean

Purpose of this Class

Specified by:

getCategory in interface SolrInfoMBean

getDocs

public URL[] getDocs()

Description copied from interface: SolrInfoMBean

Documentation URL list.

Suggested documentation URLs: Homepage for sponsoring project, FAQ on class usage, Design doc for class, Wiki, bug reporting URL, etc...

Specified by:

getDocs in interface SolrInfoMBean

getSubHandler

public SolrRequestHandler getSubHandler(String subPath)

Description copied from interface: NestedRequestHandler

Return a RequestHandler to handle a subpath from the path this handler is registered.

Specified by:

getSubHandler in interface NestedRequestHandler

getRequestHandler

public static SolrRequestHandler getRequestHandler(String handlerName,
                                                   PluginBag<SolrRequestHandler> reqHandlers)

Get the request handler registered to a given name. This function is thread safe.

setPluginInfo

public void setPluginInfo(PluginInfo pluginInfo)

getPluginInfo

public PluginInfo getPluginInfo()

getStatistics

public NamedList<Object> getStatistics()

Description copied from interface: SolrInfoMBean

Any statistics this instance would like to be publicly available via the Solr Administration interface.

Any Object type may be stored in the list, but only the toString() representation will be used.

Specified by:

getStatistics in interface SolrInfoMBean

getApis

public Collection<Api> getApis()

Description copied from interface: ApiSupport

It is possible to support multiple v2 apis by a single requesthandler

Specified by:

getApis in interface ApiSupport

Returns:

the list of v2 api implementations