Package org.apache.zookeeper.server.admin

Class Commands.WatchCommand

java.lang.Object

org.apache.zookeeper.server.admin.CommandBase

org.apache.zookeeper.server.admin.GetCommand

org.apache.zookeeper.server.admin.Commands.WatchCommand

All Implemented Interfaces:

Command

Enclosing class:

Commands

public static class Commands.WatchCommand
extends GetCommand

Watch information aggregated by session. Returned Map contains: - "session_id_to_watched_paths": Map<Long, Set<String>> session ID -> watched paths

See Also:

DataTree.getWatches(), DataTree.getWatches()

Constructor Summary

Constructors

Constructor	Description
WatchCommand()

Method Summary

Modifier and Type	Method	Description
CommandResponse	runGet(ZooKeeperServer zkServer, Map<String,String> kwargs)	Run this command for HTTP GET request.

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

runPost

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

getAuthRequest, getNames, getPrimaryName, initializeResponse, isServerRequired

Methods inherited from class java.lang.Object

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

Constructor Detail

WatchCommand

public WatchCommand()

Method Detail

runGet

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

Description copied from interface: Command

Run this command for HTTP GET request. Commands take a ZooKeeperServer, String-valued keyword arguments and return a CommandResponse object 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.

Parameters:

zkServer - ZooKeeper server

kwargs - keyword -> argument value mapping

Returns:

CommandResponse 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