org.apache.solr.common.cloud

Class ZkConfigManager

java.lang.Object

org.apache.solr.common.cloud.ZkConfigManager

public class ZkConfigManager
extends Object

Class that manages named configs in Zookeeper

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONFIGS_ZKNODE ZkNode where named configs are stored

Constructor Summary

Constructors

Constructor and Description
ZkConfigManager(SolrZkClient zkClient) Creates a new ZkConfigManager

Method Summary

Modifier and Type	Method and Description
Boolean	configExists(String configName) Check whether a config exists in Zookeeper
void	copyConfigDir(String fromConfig, String toConfig) Copy a config in ZooKeeper
void	copyConfigDir(String fromConfig, String toConfig, Set<String> copiedToZkPaths) Copy a config in ZooKeeper
void	deleteConfigDir(String configName) Delete a config in ZooKeeper
void	downloadConfigDir(String configName, Path dir) Download a config from Zookeeper and write it to the filesystem
List<String>	listConfigs()
void	uploadConfigDir(Path dir, String configName) Upload files from a given path to a config in Zookeeper

Methods inherited from class java.lang.Object

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

Field Detail

CONFIGS_ZKNODE

public static final String CONFIGS_ZKNODE

ZkNode where named configs are stored

See Also:

Constant Field Values

Constructor Detail

ZkConfigManager

public ZkConfigManager(SolrZkClient zkClient)

Creates a new ZkConfigManager

Parameters:

zkClient - the SolrZkClient to use

Method Detail

uploadConfigDir

public void uploadConfigDir(Path dir,
                            String configName)
                     throws IOException

Upload files from a given path to a config in Zookeeper

Parameters:

dir - Path to the files

configName - the name to give the config

Throws:

IOException - if an I/O error occurs or the path does not exist

downloadConfigDir

public void downloadConfigDir(String configName,
                              Path dir)
                       throws IOException

Download a config from Zookeeper and write it to the filesystem

Parameters:

configName - the config to download

dir - the Path to write files under

Throws:

IOException - if an I/O error occurs or the config does not exist

listConfigs

public List<String> listConfigs()
                         throws IOException

Throws:

IOException

configExists

public Boolean configExists(String configName)
                     throws IOException

Check whether a config exists in Zookeeper

Parameters:

configName - the config to check existance on

Returns:

whether the config exists or not

Throws:

IOException - if an I/O error occurs

deleteConfigDir

public void deleteConfigDir(String configName)
                     throws IOException

Delete a config in ZooKeeper

Parameters:

configName - the config to delete

Throws:

IOException - if an I/O error occurs

copyConfigDir

public void copyConfigDir(String fromConfig,
                          String toConfig)
                   throws IOException

Copy a config in ZooKeeper

Parameters:

fromConfig - the config to copy from

toConfig - the config to copy to

Throws:

IOException - if an I/O error occurs

copyConfigDir

public void copyConfigDir(String fromConfig,
                          String toConfig,
                          Set<String> copiedToZkPaths)
                   throws IOException

Copy a config in ZooKeeper

Parameters:

fromConfig - the config to copy from

toConfig - the config to copy to

copiedToZkPaths - should be an empty Set, will be filled in by function with the paths that were actually copied to.

Throws:

IOException - if an I/O error occurs