FountainNodes::Statistics Class Reference
[Fountain server]

Class implementing the NodeData statistics policy to maintain node statistics about a Fountain node. More...

#include <NodeData.h>

Inheritance diagram for FountainNodes::Statistics:

List of all members.

Public Member Functions
void	checkForStaleData (const time_t &staleDataLimit)
	Check if this object's data has been updated recently, if not change it's NodeState to down.
void	update (BambooLib::XMLElement *nodeInfo)
	Update this NodeData object's dynamic resource usage.
Protected Member Functions
	Statistics (const std::string &myid)
	Constructor.
	~Statistics ()
	Protected destructor since this is a policy class.
bool	supportGetElement (const std::string &getElementName) const
	Test whether or not the named Get element is supported.
bool	satisfiesWhereElement (const std::string &name, BambooLib::RMAP_Relation_Operator_Type op, const std::string &value) const
	Test the named Where element using the provided operator and value to see if it matches our statistics.
void	appendInfo (XMLElementListPtr getList, BambooLib::XMLElement *nodeXML) const
	Append this NodeData object's resource statistics to an XML message using the provided parameters.
Private Member Functions
void	parseNodeInfoElement (BambooLib::XMLElement *nodeInfo)
	Parse the node query response.
Private Attributes
std::vector< std::string >	supportedGetElements_
	A vector of strings containing the names of the supported Get elements.
const std::string	id_
	Unique ID of this node.
time_t	lastUpdated_
std::string	arch_
std::string	opsys_
unsigned int	numProcs_
double	configuredMemory_
double	configuredSwap_
double	availableMemory_
double	availableSwap_
double	cpuUsage_
BambooLib::RMAP_UnitType	configuredMemoryUnits_
BambooLib::RMAP_UnitType	configuredSwapUnits_
BambooLib::RMAP_UnitType	availableMemoryUnits_
BambooLib::RMAP_UnitType	availableSwapUnits_

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Detailed Description

Class implementing the NodeData statistics policy to maintain node statistics about a Fountain node.

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Member Function Documentation

void Statistics::appendInfo (  XMLElementListPtr  getList, BambooLib::XMLElement *  nodeXML )  const [protected]

Append this NodeData object's resource statistics to an XML message using the provided parameters. Parameters: [in]  getList  The list of Get XML elements [in]  nodeXML  The XML element to append the information to Precondition: Every Get element in the getList is supported nodeXML != NULL

void Statistics::parseNodeInfoElement (  BambooLib::XMLElement *  nodeInfo  )  [private]

Parse the node query response. Exceptions: FountainException  if an invalid NodeId is encountered

bool Statistics::satisfiesWhereElement (  const std::string &  name, BambooLib::RMAP_Relation_Operator_Type  op, const std::string &  value )  const [protected]

Test the named Where element using the provided operator and value to see if it matches our statistics. Parameters: [in]  name  The name of the Where element to test [in]  op  The relation operator to use when c omparing our value to the passed in value [in]  value  The value to test against Return values: bool  true if the comparison passes, false otherwise

bool Statistics::supportGetElement (  const std::string &  getElementName  )  const [protected]

Test whether or not the named Get element is supported. Parameters: [in]  getElementName  The name of the Get element Return values: bool  true if the get element is supported, false otherwise

void Statistics::update (  BambooLib::XMLElement *  nodeInfo  )

Update this NodeData object's dynamic resource usage. Parameters: [in]  nodeInfo  The XMLElement containing this node's resource usage in the SSSRMAP message specification

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Member Data Documentation

std::string FountainNodes::Statistics::arch_ [private]

Architecture of this node's processors

double FountainNodes::Statistics::availableMemory_ [private]

Amount of available memory

BambooLib::RMAP_UnitType FountainNodes::Statistics::availableMemoryUnits_ [private]

Available memory units

double FountainNodes::Statistics::availableSwap_ [private]

Amount of available swap space

BambooLib::RMAP_UnitType FountainNodes::Statistics::availableSwapUnits_ [private]

Available swap units

double FountainNodes::Statistics::configuredMemory_ [private]

Amount of configured memory

BambooLib::RMAP_UnitType FountainNodes::Statistics::configuredMemoryUnits_ [private]

Configured memory units

double FountainNodes::Statistics::configuredSwap_ [private]

Amount of configured swap space

BambooLib::RMAP_UnitType FountainNodes::Statistics::configuredSwapUnits_ [private]

Configured swap units

double FountainNodes::Statistics::cpuUsage_ [private]

Percentage of the CPU(s) that are utilized, ranges from 0 to 1.0 inclusive

time_t FountainNodes::Statistics::lastUpdated_ [private]

The time this object was last updated

unsigned int FountainNodes::Statistics::numProcs_ [private]

Number of configured processors

std::string FountainNodes::Statistics::opsys_ [private]

Operating system

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The documentation for this class was generated from the following files:

• /afs/scl.ameslab.gov/user/samm/fountain/source/server/NodeData.h
• /afs/scl.ameslab.gov/user/samm/fountain/source/server/NodeData.cpp

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