alluxio.hub.agent.util.process

Class NodeStatus

java.lang.Object

alluxio.hub.agent.util.process.NodeStatus

public class NodeStatus
extends Object

A new instance of this class will reflect the current status of each type of the Alluxio processes at creation time.

Constructor Summary

Constructors

Constructor and Description
NodeStatus() Create a new NodeStatus which queries the system's process table.

Method Summary

Modifier and Type	Method and Description
AlluxioProcessStatus	getProcessStatus(AlluxioNodeType type) Get the current process status.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeStatus

public NodeStatus()
           throws IOException

Create a new NodeStatus which queries the system's process table. Each instance of this class caches the pid entries at the time of creation. Create a new instance if you want to check state over a period of time.

Throws:

IOException - if the process table can't be queried

Method Detail

getProcessStatus

public AlluxioProcessStatus getProcessStatus(AlluxioNodeType type)
                                      throws IOException

Get the current process status.

Parameters:

type - the process type to get information on

Returns:

status of the process

Throws:

IOException - if the information for this process can't be retrieved