org.apache.zookeeper.server.admin

Class Commands.LeaderCommand

java.lang.Object

org.apache.zookeeper.server.admin.CommandBase

org.apache.zookeeper.server.admin.Commands.LeaderCommand

All Implemented Interfaces:

Command

Enclosing class:

Commands

public static class Commands.LeaderCommand
extends CommandBase

Returns the leader status of this instance and the leader host string.

Constructor Summary

Constructors

Constructor and Description
LeaderCommand()

Method Summary

Modifier and Type	Method and Description
CommandResponse	run(ZooKeeperServer zkServer, Map<String,String> kwargs) Run this command.

Methods inherited from class org.apache.zookeeper.server.admin.CommandBase

getDoc, getNames, getPrimaryName, initializeResponse, isServerRequired

Methods inherited from class java.lang.Object

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

Constructor Detail

LeaderCommand

public LeaderCommand()

Method Detail

run

public CommandResponse run(ZooKeeperServer zkServer,
                           Map<String,String> kwargs)

Description copied from interface: Command

Run this command. Commands take a ZooKeeperServer and String-valued keyword arguments and return a map containing any information constituting the response to the command. Commands are responsible for parsing keyword arguments and performing any error handling if necessary. Errors should be reported by setting the "error" entry of the returned map with an appropriate message rather than throwing an exception.

kwargs - keyword -> argument value mapping

Returns:

Map representing response to command containing at minimum: - "command" key containing the command's primary name - "error" key containing a String error message or null if no error