org.apache.hadoop.chukwa.inputtools.plugin

Class ExecPlugin

java.lang.Object

org.apache.hadoop.chukwa.inputtools.plugin.ExecPlugin

All Implemented Interfaces:

IPlugin

Direct Known Subclasses:

ExecHelper, NodeActivityPlugin, PbsNodePlugin

public abstract class ExecPlugin
extends Object
implements IPlugin

Runs external command-line tools, captures output. Subclasses are responsible for implementing getCmde(), which determines the command to be invoked.

Field Summary

Fields

Modifier and Type	Field and Description
static int	statusKO
static int	statusOK

Constructor Summary

Constructors

Constructor and Description
ExecPlugin()

Method Summary

Modifier and Type	Method and Description
org.json.simple.JSONObject	execute()
abstract String	getCmde()
org.json.simple.JSONObject	postProcess(org.json.simple.JSONObject execResult)
void	stop()
int	waitFor()

Methods inherited from class java.lang.Object

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

Field Detail

statusOK

public static final int statusOK

See Also:

Constant Field Values

statusKO

public static final int statusKO

See Also:

Constant Field Values

Constructor Detail

ExecPlugin

public ExecPlugin()

Method Detail

stop

public void stop()

waitFor

public int waitFor()
            throws InterruptedException

Throws:

InterruptedException

getCmde

public abstract String getCmde()

postProcess

public org.json.simple.JSONObject postProcess(org.json.simple.JSONObject execResult)

execute

public org.json.simple.JSONObject execute()

Specified by:

execute in interface IPlugin