Package org.apache.solr.client.solrj.impl

Class DelegatingClusterStateProvider

java.lang.Object

org.apache.solr.client.solrj.impl.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	Description
protected ClusterStateProvider	delegate

Constructor Summary

Constructors

Constructor	Description
DelegatingClusterStateProvider(ClusterStateProvider delegate)

Method Summary

Modifier and Type	Method	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.
Object	getClusterProperty(String propertyName)	Obtain a cluster property, or null if it doesn't exist.
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
String	getQuorumHosts()
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, isRoutedAlias

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

isClosed

Field Details

delegate

protected ClusterStateProvider delegate

Constructor Details

DelegatingClusterStateProvider

public DelegatingClusterStateProvider(ClusterStateProvider delegate)

Method Details

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 only if 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.

getClusterProperty

public Object getClusterProperty(String propertyName)

Description copied from interface: ClusterStateProvider

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

Specified by:

getClusterProperty in interface ClusterStateProvider

getClusterState

public ClusterState getClusterState()

Description copied from interface: ClusterStateProvider

Obtain the current cluster state. WARNING: This method is quite expensive as it involves fetching remote information. Use with caution and be aware of the potential performance implications.

Specified by:

getClusterState in interface ClusterStateProvider

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 AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

getQuorumHosts

public String getQuorumHosts()

Specified by:

getQuorumHosts in interface ClusterStateProvider