Package org.graylog2.cluster

Class ClusterConfigServiceImpl

java.lang.Object

org.graylog2.cluster.ClusterConfigServiceImpl

All Implemented Interfaces:

ClusterConfigService

public class ClusterConfigServiceImpl
extends Object
implements ClusterConfigService

Constructor Summary

Constructors

Constructor	Description
ClusterConfigServiceImpl(MongoJackObjectMapperProvider mapperProvider, MongoConnection mongoConnection, NodeId nodeId, ChainingClassLoader chainingClassLoader, ClusterEventBus clusterEventBus)

Method Summary

Modifier and Type	Method	Description
<T> T	get(Class<T> type)	Retrieve Java class of a certain type from the cluster configuration.
<T> T	get(String key, Class<T> type)	Retrieve Java class of a certain type for the given key from the cluster configuration.
<T> T	getOrDefault(Class<T> type, T defaultValue)	Retrieve Java class of a certain type from the cluster configuration or return a default value in case that failed.
Set<Class<?>>	list()	List all classes of configuration beans in the database.
<T> int	remove(Class<T> type)	Remove a configuration bean from the cluster configuration.
<T> void	write(String key, T payload)	Write a configuration bean to the cluster configuration with the specified key.
<T> void	write(T payload)	Write a configuration bean to the cluster configuration.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ClusterConfigServiceImpl

@Inject
public ClusterConfigServiceImpl(MongoJackObjectMapperProvider mapperProvider,
 MongoConnection mongoConnection,
 NodeId nodeId,
 ChainingClassLoader chainingClassLoader,
 ClusterEventBus clusterEventBus)

Method Details

get

public <T> T get(String key,
 Class<T> type)

Description copied from interface: ClusterConfigService

Retrieve Java class of a certain type for the given key from the cluster configuration.

Specified by:

get in interface ClusterConfigService

Type Parameters:

T - The type of the Java configuration bean.

Parameters:

key - The key that is used to find the cluster config object in the database.

type - The Class of the Java configuration bean to retrieve.

Returns:

An instance of the requested type or null if it couldn't be retrieved.

get

public <T> T get(Class<T> type)

Description copied from interface: ClusterConfigService

Retrieve Java class of a certain type from the cluster configuration.

Specified by:

get in interface ClusterConfigService

Type Parameters:

T - The type of the Java configuration bean.

Parameters:

type - The Class of the Java configuration bean to retrieve.

Returns:

An instance of the requested type or null if it couldn't be retrieved.

getOrDefault

public <T> T getOrDefault(Class<T> type,
 T defaultValue)

Description copied from interface: ClusterConfigService

Retrieve Java class of a certain type from the cluster configuration or return a default value in case that failed.

Specified by:

getOrDefault in interface ClusterConfigService

Type Parameters:

T - The type of the Java configuration bean.

Parameters:

type - The Class of the Java configuration bean to retrieve.

defaultValue - An instance of T which is returned as default value.

Returns:

An instance of the requested type.

write

public <T> void write(T payload)

Description copied from interface: ClusterConfigService

Write a configuration bean to the cluster configuration.

Specified by:

write in interface ClusterConfigService

Type Parameters:

T - The type of the Java configuration bean.

Parameters:

payload - The object to write to the cluster configuration. Must be serializable by Jackson!

write

public <T> void write(String key,
 T payload)

Description copied from interface: ClusterConfigService

Write a configuration bean to the cluster configuration with the specified key.

Specified by:

write in interface ClusterConfigService

Type Parameters:

T - The type of the Java configuration bean.

Parameters:

key - The key that is used to write the cluster config object to the database.

payload - The object to write to the cluster configuration. Must be serializable by Jackson!

remove

public <T> int remove(Class<T> type)

Description copied from interface: ClusterConfigService

Remove a configuration bean from the cluster configuration.

Specified by:

remove in interface ClusterConfigService

Parameters:

type - The Class of the Java configuration bean to remove.

Returns:

The number of removed entries from the cluster configuration.

list

public Set<Class<?>> list()

Description copied from interface: ClusterConfigService

List all classes of configuration beans in the database.

Specified by:

list in interface ClusterConfigService

Returns:

The list of Java classes being used in the database.