Commands.LastSnapshotCommand (Apache ZooKeeper - Server 3.7.2 API)

java.lang.Object
- org.apache.zookeeper.server.admin.CommandBase
- - org.apache.zookeeper.server.admin.Commands.LastSnapshotCommand

All Implemented Interfaces:

Command

Enclosing class:

Commands
```
public static class Commands.LastSnapshotCommand
extends CommandBase
```
Command returns information of the last snapshot that zookeeper server has finished saving to disk. During the time between the server starts up and it finishes saving its first snapshot, the command returns the zxid and last modified time of the snapshot file used for restoration at server startup. Returned map contains: - "zxid": String - "timestamp": Long

- Constructor Summary
  
  Constructors
  Constructor Description
  
  LastSnapshotCommand()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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
  - LastSnapshotCommand
```
public LastSnapshotCommand()
```
- 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