Class GetProcData

java.lang.Object

org.deltava.dao.file.DAO

org.deltava.dao.file.GetProcData

public class GetProcData
extends DAO

A Data Access Object to read from the Linux /proc filesystem.

Since:

1.0

Version:

9.1

Author:

Luke

Constructor Summary

Constructors

Constructor	Description
GetProcData()	Initializes the Data Access Object.

Method Summary

Modifier and Type	Method	Description
List<Double>	getLoad()	Returns the system load average from /proc/loadavg.
Map<String,Integer>	getMemory()	Returns system memory data from /proc/meminfo.
long	getUptime()	Retrieves system uptime from /proc/uptime.

Methods inherited from class org.deltava.dao.file.DAO

getReader, getStream, setBufferSize

Methods inherited from class java.lang.Object

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

Constructor Details

GetProcData

public GetProcData()

Initializes the Data Access Object.

Method Details

getUptime

public long getUptime()
               throws DAOException

Retrieves system uptime from /proc/uptime.

Returns:

the machine's uptime in milliseconds

Throws:

DAOException - if an I/O error occurs

getLoad

public List<Double> getLoad()
                     throws DAOException

Returns the system load average from /proc/loadavg.

Returns:

a List of doubles, with processes waiting in the last 1, 5 and 15 minutes

Throws:

DAOException - if an I/O error occurs

getMemory

public Map<String,Integer> getMemory()
                              throws DAOException

Returns system memory data from /proc/meminfo.

Returns:

a Map of Integers, keyed by value

Throws:

DAOException - if an I/O error occurs