isc::dhcp::ExpirationConfigParser Class Reference

Parser for the configuration parameters pertaining to the processing of expired leases. More...

#include <expiration_config_parser.h>

Inheritance diagram for isc::dhcp::ExpirationConfigParser:

Public Member Functions
virtual	~ExpirationConfigParser ()
	Destructor.
void	parse (isc::data::ConstElementPtr expiration_config, isc::dhcp::CfgExpirationPtr expiration)
	Parses parameters in the JSON map, pertaining to the processing of the expired leases.
Public Member Functions inherited from isc::data::SimpleParser
uint16_t	getUint16 (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a value converted to uint16_t.
uint32_t	getUint32 (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a value converted to uint32_t.
uint8_t	getUint8 (ConstElementPtr scope, const std::string &name)
	Get an uint8_t value.
const isc::util::Triplet< uint32_t >	parseIntTriplet (const data::ConstElementPtr &scope, const std::string &name)
	Parses an integer triplet.

Additional Inherited Members
Static Public Member Functions inherited from isc::data::SimpleParser
static void	checkKeywords (const SimpleKeywords &keywords, isc::data::ConstElementPtr scope)
	Checks acceptable keywords with their expected type.
static void	checkRequired (const SimpleRequiredKeywords &required, isc::data::ConstElementPtr scope)
	Checks that all required keywords are present.
static size_t	deriveParams (isc::data::ConstElementPtr parent, isc::data::ElementPtr child, const ParamsList &params)
	Derives (inherits) parameters from parent scope to a child.
static isc::asiolink::IOAddress	getAddress (const ConstElementPtr &scope, const std::string &name)
	Returns a IOAddress parameter from a scope.
static bool	getBoolean (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a boolean parameter from a scope.
static double	getDouble (const ConstElementPtr &scope, const std::string &name)
	Returns a floating point parameter from a scope.
static int64_t	getInteger (isc::data::ConstElementPtr scope, const std::string &name)
	Returns an integer parameter from a scope.
static int64_t	getInteger (isc::data::ConstElementPtr scope, const std::string &name, int64_t min, int64_t max)
	Returns an integer parameter from a scope and checks its range.
static const data::Element::Position &	getPosition (const std::string &name, const data::ConstElementPtr parent)
	Utility method that returns position of an element.
static std::string	getString (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a string parameter from a scope.
static size_t	setDefaults (isc::data::ElementPtr scope, const SimpleDefaults &default_values)
	Sets the default values.
static size_t	setListDefaults (isc::data::ConstElementPtr list, const SimpleDefaults &default_values)
	Sets the default values for all entries in a list.
Protected Member Functions inherited from isc::data::SimpleParser
template<typename target_type , target_type convert>
target_type	getAndConvert (isc::data::ConstElementPtr scope, const std::string &name, const std::string &type_name)
	Returns a converted value from a scope.
template<typename int_type >
int_type	getIntType (isc::data::ConstElementPtr scope, const std::string &name)
	Returns an integer value with range checking from a scope.

Detailed Description

Parser for the configuration parameters pertaining to the processing of expired leases.

This parser iterates over parameters stored in the map and tries to set the appropriate values in the CfgExpiration object of the Configuration Manager.

Currently supported parameters are:

• reclaim-timer-wait-time,
• flush-reclaimed-timer-wait-time,
• hold-reclaimed-time,
• max-reclaim-leases,
• max-reclaim-time,
• unwarned-reclaim-cycles.

These parameters are optional and the default values are used for those that aren't specified.

The parser checks if the values of the specified parameters are within the allowed ranges and throws exception if they aren't. Each parameter has a corresponding maximum value defined in the CfgExpiration class. None of them may be negative.

Definition at line 39 of file expiration_config_parser.h.

Constructor & Destructor Documentation

~ExpirationConfigParser()

virtual isc::dhcp::ExpirationConfigParser::~ExpirationConfigParser ( )

inlinevirtual

Destructor.

Definition at line 43 of file expiration_config_parser.h.

Member Function Documentation

parse()

void isc::dhcp::ExpirationConfigParser::parse	(	isc::data::ConstElementPtr	expiration_config,
		isc::dhcp::CfgExpirationPtr	expiration )

Parses parameters in the JSON map, pertaining to the processing of the expired leases.

Parameters

expiration_config	pointer to the content of parsed values
expiration	pointer to config parameters to be updated

Exceptions

DhcpConfigError

if unknown parameter specified or the parameter contains invalid value.

Definition at line 21 of file expiration_config_parser.cc.

References isc::data::SimpleParser::getInteger(), isc::data::SimpleParser::getPosition(), isc_throw, and isc::Exception::what().

Referenced by isc::dhcp::processDhcp4Config(), and isc::dhcp::processDhcp6Config().

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

• expiration_config_parser.h
• expiration_config_parser.cc