NodeData< NodeStatistics, NodeNetwork > Class Template Reference
[Fountain server]

Object to represent information for each node in a cluster. More...

#include <NodeData.h>

List of all members.

Public Member Functions
	NodeData (const std::string &myid)
	Constructor.
void	appendInfo (XMLElementListPtr whereList, XMLElementListPtr getList, BambooLib::XMLElement *nodeXML) const
	Append this object's requested statistical information to the named XML element.
Private Member Functions
bool	supportGetElement (XMLElementListPtr getList) const
	Test whether or not this object's policy classes supports the named get element.
bool	satisfiesWhereElement (XMLElementListPtr whereList) const
	Check if the NodeStatistics or NodeNetwork policy classes support the list of Where elements.

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Detailed Description

template<class NodeStatistics, class NodeNetwork = FountainNodes::Network>
class NodeData< NodeStatistics, NodeNetwork >

Object to represent information for each node in a cluster.

This class prescribes a Node Statistics and Node Network policy class. They both require the following interface:

• A protected explicit constructor taking a std::string parameter
• A protected bool supportGetElement method taking a single std::string parameter that returns true or false if the object supports the named get element
• A protected bool satisfiesWhereElement(const std::string&, BambooLib::RMAP_Relation_Operator_Type, const std::string&) method that returns true if the named where element meets the criteria
• A protected void appendInfo(XMLElementListPtr, BambooLib::XMLElement*) method that appends the object's requested information to the named XML element

Each NodeData object is intended to be held in a container that is maintained by the Fountain server. A NodeData object is created in one of three ways:

1. when the Fountain server first receives a query response message from the master Fountain node containing a new NodeID not in the Fountain server's node monitor database.
2. when the Fountain server parses the nodelist file
3. when the Fountain server creates a ServerData object and it discovers its resource

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Constructor & Destructor Documentation

template<class NodeStatistics, class NodeNetwork = FountainNodes::Network> NodeData< NodeStatistics, NodeNetwork >::NodeData (  const std::string &  myid  )  [inline, explicit]

Constructor. Parameters: [in]  myid  Unique string identifying this node

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Member Function Documentation

template<class NodeStatistics, class NodeNetwork = FountainNodes::Network> void NodeData< NodeStatistics, NodeNetwork >::appendInfo (  XMLElementListPtr  whereList, XMLElementListPtr  getList, BambooLib::XMLElement *  nodeXML )  const [inline]

Append this object's requested statistical information to the named XML element. Parameters: [in]  whereList  The list of Where elements [in]  getList  The requested statistics [in]  nodeXML  The XML element to append the statistics to

template<class NodeStatistics, class NodeNetwork = FountainNodes::Network> bool NodeData< NodeStatistics, NodeNetwork >::satisfiesWhereElement (  XMLElementListPtr  whereList  )  const [inline, private]

Check if the NodeStatistics or NodeNetwork policy classes support the list of Where elements. Return values: bool  true if all of the Where elements are supported, false otherwise Exceptions: FountainException  if one of the Where elements is malformed

template<class NodeStatistics, class NodeNetwork = FountainNodes::Network> bool NodeData< NodeStatistics, NodeNetwork >::supportGetElement (  XMLElementListPtr  getList  )  const [inline, private]

Test whether or not this object's policy classes supports the named get element. Parameters: [in]  getList  The list of Get elements Return values: bool  true if the get element is supported, false otherwise

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

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

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