org.apache.solr.client.solrj.cloud.autoscaling

Class DelegatingClusterStateProvider

java.lang.Object

org.apache.solr.client.solrj.cloud.autoscaling.DelegatingClusterStateProvider

All Implemented Interfaces:

Closeable, AutoCloseable, ClusterStateProvider, SolrCloseable

public class DelegatingClusterStateProvider
extends Object
implements ClusterStateProvider

Base class for overriding some behavior of ClusterStateProvider

Field Summary

Fields

Modifier and Type	Field and Description
protected ClusterStateProvider	delegate

Constructor Summary

Constructors

Constructor and Description
DelegatingClusterStateProvider(ClusterStateProvider delegate)

Method Summary

Modifier and Type	Method and Description
void	close()
void	connect()
Map<String,String>	getAliasProperties(String alias) Return alias properties, or an empty map if the alias has no properties.
Map<String,Object>	getClusterProperties() Obtain cluster properties.
ClusterState	getClusterState() Obtain the current cluster state.
DocCollection	getCollection(String name)
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.
String	resolveSimpleAlias(String alias) Given a collection alias, return a single collection it points to, or the original name if it's not an alias.

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.client.solrj.impl.ClusterStateProvider

getClusterProperty, getClusterProperty, isRoutedAlias

Methods inherited from interface org.apache.solr.common.SolrCloseable

isClosed

Field Detail

delegate

protected ClusterStateProvider delegate

Constructor Detail

DelegatingClusterStateProvider

public DelegatingClusterStateProvider(ClusterStateProvider delegate)

Method Detail

getState

public ClusterState.CollectionRef getState(String collection)

Description copied from interface: ClusterStateProvider

Obtain the state of the collection (cluster status).

Specified by:

getState in interface ClusterStateProvider

Returns:

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

getLiveNodes

public Set<String> getLiveNodes()

Description copied from interface: ClusterStateProvider

Obtain set of live_nodes for the cluster.

Specified by:

getLiveNodes in interface ClusterStateProvider

resolveAlias

public List<String> resolveAlias(String alias)

Description copied from interface: ClusterStateProvider

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.

Specified by:

resolveAlias in interface ClusterStateProvider

getAliasProperties

public Map<String,String> getAliasProperties(String alias)

Description copied from interface: ClusterStateProvider

Return alias properties, or an empty map if the alias has no properties.

Specified by:

getAliasProperties in interface ClusterStateProvider

resolveSimpleAlias

public String resolveSimpleAlias(String alias)
                          throws IllegalArgumentException

Description copied from interface: ClusterStateProvider

Given a collection alias, return a single collection it points to, or the original name if it's not an alias.

Specified by:

resolveSimpleAlias in interface ClusterStateProvider

Throws:

IllegalArgumentException - if an alias points to more than 1 collection, either directly or indirectly.

getClusterState

public ClusterState getClusterState()
                             throws IOException

Description copied from interface: ClusterStateProvider

Obtain the current cluster state.

Specified by:

getClusterState in interface ClusterStateProvider

Throws:

IOException

getClusterProperties

public Map<String,Object> getClusterProperties()

Description copied from interface: ClusterStateProvider

Obtain cluster properties.

Specified by:

getClusterProperties in interface ClusterStateProvider

Returns:

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

getPolicyNameByCollection

public String getPolicyNameByCollection(String coll)

Description copied from interface: ClusterStateProvider

Get the collection-specific policy

Specified by:

getPolicyNameByCollection in interface ClusterStateProvider

getCollection

public DocCollection getCollection(String name)
                            throws IOException

Specified by:

getCollection in interface ClusterStateProvider

Throws:

IOException

connect

public void connect()

Specified by:

connect in interface ClusterStateProvider

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException