org.apache.solr.client.solrj.impl

Interface ClusterStateProvider

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

DelegatingClusterStateProvider, HttpClusterStateProvider, ZkClientClusterStateProvider

public interface ClusterStateProvider
extends Closeable

Method Summary

Modifier and Type	Method and Description
void	connect()
Map<String,Object>	getClusterProperties() Obtain cluster properties.
default <T> T	getClusterProperty(String propertyName) Obtain a cluster property, or null if it doesn't exist.
default <T> T	getClusterProperty(String key, T defaultValue) Obtain a cluster property, or the default value if it doesn't exist.
ClusterState	getClusterState() Obtain the current cluster state.
Set<String>	getLiveNodes() Obtain set of live_nodes for the cluster.
String	getPolicyNameByCollection(String coll) Get the collection-specific policy
ClusterState.CollectionRef	getState(String collection) Obtain the state of the collection (cluster status).
List<String>	resolveAlias(String alias) Given a collection alias, returns a list of collections it points to, or returns a singleton list of the input if it's not an alias.

Methods inherited from interface java.io.Closeable

close

Method Detail

getState

ClusterState.CollectionRef getState(String collection)

Obtain the state of the collection (cluster status).

Returns:

the collection state, or null is collection doesn't exist

getLiveNodes

Set<String> getLiveNodes()

Obtain set of live_nodes for the cluster.

resolveAlias

List<String> resolveAlias(String alias)

Given a collection alias, returns a list of collections it points to, or returns a singleton list of the input if it's not an alias.

getClusterState

ClusterState getClusterState()
                      throws IOException

Obtain the current cluster state.

Throws:

IOException

getClusterProperties

Map<String,Object> getClusterProperties()

Obtain cluster properties.

Returns:

configured cluster properties, or an empty map, never null.

getClusterProperty

default <T> T getClusterProperty(String key,
                                 T defaultValue)

Obtain a cluster property, or the default value if it doesn't exist.

getClusterProperty

default <T> T getClusterProperty(String propertyName)

Obtain a cluster property, or null if it doesn't exist.

getPolicyNameByCollection

String getPolicyNameByCollection(String coll)

Get the collection-specific policy

connect

void connect()