org.apache.solr.handler.component

Class HttpShardHandlerFactory

java.lang.Object

org.apache.solr.handler.component.ShardHandlerFactory

org.apache.solr.handler.component.HttpShardHandlerFactory

All Implemented Interfaces:

SolrMetricProducer, PluginInfoInitialized

public class HttpShardHandlerFactory
extends ShardHandlerFactory
implements PluginInfoInitialized, SolrMetricProducer

Field Summary

Fields

Modifier and Type	Field and Description
protected InstrumentedPoolingHttpClientConnectionManager	clientConnectionManager
protected org.apache.http.impl.client.CloseableHttpClient	defaultClient
protected InstrumentedHttpRequestExecutor	httpRequestExecutor
protected Random	r

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

DEFAULT_SHARDHANDLER_INFO

Constructor Summary

Constructors

Constructor and Description
HttpShardHandlerFactory()

Method Summary

Modifier and Type	Method and Description
List<String>	buildURLList(String shard) Creates a list of urls for the given shard.
void	close()
protected LBHttpSolrClient	createLoadbalancer(org.apache.http.client.HttpClient httpClient)
protected ModifiableSolrParams	getClientParams()
protected <T> T	getParameter(NamedList initArgs, String configKey, T defaultValue, StringBuilder sb)
protected ReplicaListTransformer	getReplicaListTransformer(SolrQueryRequest req)
ShardHandler	getShardHandler() Get ShardHandler that uses the default http client.
ShardHandler	getShardHandler(org.apache.http.client.HttpClient httpClient) Get ShardHandler that uses custom http client.
protected ExecutorService	getThreadPoolExecutor()
void	init(PluginInfo info)
void	initializeMetrics(SolrMetricManager manager, String registry, String tag, String scope) Initializes metrics specific to this producer.
LBHttpSolrClient.Rsp	makeLoadBalancedRequest(QueryRequest req, List<String> urls) Makes a request to one or more of the given urls, using the configured load balancer.
CompletionService	newCompletionService() Creates a new completion service for use by a single set of distributed requests.
protected LBHttpSolrClient.Req	newLBHttpSolrClientReq(QueryRequest req, List<String> urls)

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

newInstance

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.metrics.SolrMetricProducer

initializeMetrics

Field Detail

clientConnectionManager

protected InstrumentedPoolingHttpClientConnectionManager clientConnectionManager

defaultClient

protected org.apache.http.impl.client.CloseableHttpClient defaultClient

httpRequestExecutor

protected InstrumentedHttpRequestExecutor httpRequestExecutor

r

protected final Random r

Constructor Detail

HttpShardHandlerFactory

public HttpShardHandlerFactory()

Method Detail

getShardHandler

public ShardHandler getShardHandler()

Get ShardHandler that uses the default http client.

Specified by:

getShardHandler in class ShardHandlerFactory

getShardHandler

public ShardHandler getShardHandler(org.apache.http.client.HttpClient httpClient)

Get ShardHandler that uses custom http client.

init

public void init(PluginInfo info)

Specified by:

init in interface PluginInfoInitialized

getClientParams

protected ModifiableSolrParams getClientParams()

getThreadPoolExecutor

protected ExecutorService getThreadPoolExecutor()

createLoadbalancer

protected LBHttpSolrClient createLoadbalancer(org.apache.http.client.HttpClient httpClient)

getParameter

protected <T> T getParameter(NamedList initArgs,
                             String configKey,
                             T defaultValue,
                             StringBuilder sb)

close

public void close()

Specified by:

close in class ShardHandlerFactory

makeLoadBalancedRequest

public LBHttpSolrClient.Rsp makeLoadBalancedRequest(QueryRequest req,
                                                    List<String> urls)
                                             throws SolrServerException,
                                                    IOException

Makes a request to one or more of the given urls, using the configured load balancer.

Parameters:

req - The solr search request that should be sent through the load balancer

urls - The list of solr server urls to load balance across

Returns:

The response from the request

Throws:

SolrServerException

IOException

newLBHttpSolrClientReq

protected LBHttpSolrClient.Req newLBHttpSolrClientReq(QueryRequest req,
                                                      List<String> urls)

buildURLList

public List<String> buildURLList(String shard)

Creates a list of urls for the given shard.

Parameters:

shard - the urls for the shard, separated by '|'

Returns:

A list of valid urls (including protocol) that are replicas for the shard

getReplicaListTransformer

protected ReplicaListTransformer getReplicaListTransformer(SolrQueryRequest req)

newCompletionService

public CompletionService newCompletionService()

Creates a new completion service for use by a single set of distributed requests.

initializeMetrics

public void initializeMetrics(SolrMetricManager manager,
                              String registry,
                              String tag,
                              String scope)

Description copied from interface: SolrMetricProducer

Initializes metrics specific to this producer.

Note: for back-compatibility this method by default calls SolrMetricProducer.initializeMetrics(SolrMetricManager, String, String).

Specified by:

initializeMetrics in interface SolrMetricProducer

Parameters:

manager - an instance of SolrMetricManager

registry - registry name where metrics are registered

tag - symbolic tag that represents a group of related instances that have the same life-cycle. Parent component can use the tag when calling SolrMetricManager.unregisterGauges(String, String) to unregister metrics created by this instance of the producer.

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