Classes
class	BaseStampedElement
	This class represents configuration element which is associated with database identifier and the modification timestamp. More...

class	BigIntElement
	Wrapper over int128_t. More...

class	BoolElement

struct	CfgToElement
	Abstract class for configuration Cfg_* classes. More...

class	DoubleElement

class	Element
	The `Element` class represents a piece of data, used by the command channel and configuration parts. More...

class	ElementValue
	Template class for converting a value encapsulated in the `Element` object into a simple type. More...

class	ElementValue< asiolink::IOAddress >
	The `ElementValue` specialization for IOAddress. More...

class	ElementValue< bool >
	The `ElementValue` specialization for boolean. More...

class	ElementValue< double >
	The `ElementValue` specialization for double. More...

class	ElementValue< std::string >
	The `ElementValue` specialization for string. More...

struct	HierarchyTraversalTest
	Structure holding the test functions used to traverse the element hierarchy. More...

class	IntElement
	Notes: IntElement type is changed to int64_t. More...

class	JSONError
	A standard Data module exception that is thrown if a parse error is encountered when constructing an Element from a string. More...

class	ListElement

class	MapElement

class	NullElement

class	ServerTag
	Represents a server tag. More...

struct	SimpleDefault
	This array defines a single entry of default values. More...

class	SimpleParser
	A simple parser. More...

class	StampedElement
	This class represents configuration element which is associated with database identifier, modification timestamp and servers. More...

class	StampedValue
	This class represents a named configuration parameter, e.g. More...

struct	StampedValueModificationTimeIndexTag
	Tag for the index for access by modification time. More...

struct	StampedValueNameIndexTag
	Tag for the index for access by value name. More...

class	StringElement

class	TypeError
	A standard Data module exception that is thrown if a function is called for an Element that has a wrong type (e.g. More...

struct	UserContext
	Base class for user context. More...

Typedefs
typedef boost::shared_ptr< const Element >	ConstElementPtr

typedef boost::shared_ptr< Element >	ElementPtr

typedef std::map< std::string, HierarchyTraversalTest >	FunctionMap
	Mapping between a container name and functions used to match elements inside the container.

typedef std::vector< FunctionMap >	HierarchyDescriptor
	Hierarchy descriptor of the containers in a specific Element hierarchy tree.

typedef std::function< bool(const std::string &)	IsKeyTestFunc)
	Function used to check if the key is used for identification.

typedef std::function< bool(ElementPtr &, ElementPtr &)	MatchTestFunc)
	Function used to check if two MapElements refer to the same configuration data.

typedef std::function< bool(ElementPtr &)	NoDataTestFunc)
	Function used to check if the data provided for the element contains only information used for identification, or it contains extra useful data.

typedef std::vector< std::string >	ParamsList
	This defines a list of all parameters that are derived (or inherited) between contexts.

typedef std::vector< SimpleDefault >	SimpleDefaults
	This specifies all default values in a given scope (e.g. a subnet).

typedef std::map< std::string, isc::data::Element::types >	SimpleKeywords
	This specifies all accepted keywords with their types.

typedef std::vector< std::string >	SimpleRequiredKeywords
	This specifies all required keywords.

typedef boost::shared_ptr< StampedValue >	StampedValuePtr
	Pointer to the stamped value.

Definition of the multi index container for @c StampedValue.
typedef boost::multi_index_container< StampedValuePtr, boost::multi_index::indexed_by< boost::multi_index::hashed_non_unique< boost::multi_index::tag< StampedValueNameIndexTag >, boost::multi_index::const_mem_fun< StampedValue, std::string, &StampedValue::getName > >, boost::multi_index::ordered_non_unique< boost::multi_index::tag< StampedValueModificationTimeIndexTag >, boost::multi_index::const_mem_fun< BaseStampedElement, boost::posix_time::ptime, &BaseStampedElement::getModificationTime > > > >	StampedValueCollection
	Multi index container for `StampedValue`.

Functions
ElementPtr	copy (ConstElementPtr from, int level=100)
	Copy the data up to a nesting level.

void	extend (const std::string &container, const std::string &extension, ElementPtr &element, ElementPtr &other, HierarchyDescriptor &hierarchy, std::string key, size_t idx=0, bool alter=false)
	Extends data by adding the specified 'extension' elements from 'other' inside the 'container' element (recursively).

bool	isEquivalent (ConstElementPtr a, ConstElementPtr b)
	Compares the data with other using unordered lists.

bool	isNull (ConstElementPtr p)
	Checks whether the given ElementPtr is a NULL pointer.

void	merge (ElementPtr element, ConstElementPtr other)
	Merges the data from other into element.

void	mergeDiffAdd (ElementPtr &element, ElementPtr &other, HierarchyDescriptor &hierarchy, std::string key, size_t idx=0)
	Merges the diff data by adding the missing elements from 'other' to 'element' (recursively).

void	mergeDiffDel (ElementPtr &element, ElementPtr &other, HierarchyDescriptor &hierarchy, std::string key, size_t idx=0)
	Merges the diff data by removing the data present in 'other' from 'element' (recursively).

bool	operator!= (const Element &a, const Element &b)

bool	operator< (Element const &a, Element const &b)

std::ostream &	operator<< (std::ostream &os, const ServerTag &server_tag)
	Insert the `ServerTag` as a string into stream.

std::ostream &	operator<< (std::ostream &out, const Element &e)
	Insert the Element as a string into stream.

std::ostream &	operator<< (std::ostream &out, const Element::Position &pos)
	Insert Element::Position as a string into stream.

bool	operator== (const Element &a, const Element &b)

void	prettyPrint (ConstElementPtr element, std::ostream &out, unsigned indent=0, unsigned step=2)
	Pretty prints the data into stream.

std::string	prettyPrint (ConstElementPtr element, unsigned indent=0, unsigned step=2)
	Pretty prints the data into string.

ConstElementPtr	removeIdentical (ConstElementPtr a, ConstElementPtr b)
	Create a new ElementPtr from the first ElementPtr, removing all values that are equal in the second.

void	removeIdentical (ElementPtr a, ConstElementPtr b)
	Remove all values from the first ElementPtr that are equal in the second.

Typedef Documentation

◆ ConstElementPtr

typedef boost::shared_ptr<const Element> isc::data::ConstElementPtr

Definition at line 29 of file data.h.

◆ ElementPtr

typedef boost::shared_ptr<Element> isc::data::ElementPtr

Definition at line 28 of file data.h.

◆ FunctionMap

typedef std::map<std::string, HierarchyTraversalTest> isc::data::FunctionMap

Mapping between a container name and functions used to match elements inside the container.

Definition at line 909 of file data.h.

◆ HierarchyDescriptor

typedef std::vector<FunctionMap> isc::data::HierarchyDescriptor

Hierarchy descriptor of the containers in a specific Element hierarchy tree.

The position inside the vector indicates the level at which the respective containers are located.

e.g. { { { "pools", { ... , ... } }, { "pd-pools", { ... , ... } }, { "option-data", { ... , ... } } }, { { "option-data", { ... , ... } } } } At first subnet level the 'pools', 'pd-pools' and 'option-data' containers can be found. At second subnet level the 'option-data' container can be found (obviously only inside 'pools' and 'pd-pools' containers).

Definition at line 924 of file data.h.

◆ IsKeyTestFunc

typedef std::function<bool (const std::string&) isc::data::IsKeyTestFunc)

Function used to check if the key is used for identification.

Definition at line 897 of file data.h.

◆ MatchTestFunc

typedef std::function<bool (ElementPtr&, ElementPtr&) isc::data::MatchTestFunc)

Function used to check if two MapElements refer to the same configuration data.

It can check if the two MapElements have the same or have equivalent value for some members. e.g. ( left->get("prefix")->stringValue() == right->get("prefix")->stringValue() && left->get("prefix-len")->intValue() == right->get("prefix-len")->intValue() && left->get("delegated-len")->intValue() == right->get("delegated-len")->intValue() )

Definition at line 890 of file data.h.

◆ NoDataTestFunc

typedef std::function<bool (ElementPtr&) isc::data::NoDataTestFunc)

Function used to check if the data provided for the element contains only information used for identification, or it contains extra useful data.

Definition at line 894 of file data.h.

◆ ParamsList

typedef std::vector<std::string> isc::data::ParamsList

This defines a list of all parameters that are derived (or inherited) between contexts.

Definition at line 43 of file lib/cc/simple_parser.h.

◆ SimpleDefaults

typedef std::vector<SimpleDefault> isc::data::SimpleDefaults

This specifies all default values in a given scope (e.g. a subnet).

Definition at line 39 of file lib/cc/simple_parser.h.

◆ SimpleKeywords

typedef std::map<std::string, isc::data::Element::types> isc::data::SimpleKeywords

This specifies all accepted keywords with their types.

Definition at line 36 of file lib/cc/simple_parser.h.

◆ SimpleRequiredKeywords

typedef std::vector<std::string> isc::data::SimpleRequiredKeywords

This specifies all required keywords.

Definition at line 33 of file lib/cc/simple_parser.h.

◆ StampedValueCollection

typedef boost::multi_index_container< StampedValuePtr, boost::multi_index::indexed_by< boost::multi_index::hashed_non_unique< boost::multi_index::tag<StampedValueNameIndexTag>, boost::multi_index::const_mem_fun< StampedValue, std::string, &StampedValue::getName > >, boost::multi_index::ordered_non_unique< boost::multi_index::tag<StampedValueModificationTimeIndexTag>, boost::multi_index::const_mem_fun< BaseStampedElement, boost::posix_time::ptime, &BaseStampedElement::getModificationTime > > >> isc::data::StampedValueCollection

Multi index container for StampedValue.

Definition at line 230 of file stamped_value.h.

◆ StampedValuePtr

typedef boost::shared_ptr<StampedValue> isc::data::StampedValuePtr

Pointer to the stamped value.

Definition at line 26 of file stamped_value.h.

Function Documentation

◆ copy()

ElementPtr isc::data::copy	(	ConstElementPtr	from,
		int	level = 100 )

Copy the data up to a nesting level.

The copy is a deep copy so nothing is shared if it is not under the given nesting level.

Parameters

from	the pointer to the element to copy
level	nesting level (default is 100, 0 means shallow copy, negative means outbound and perhaps looping forever).

Returns: a pointer to a fresh copy

Exceptions

raises a BadValue is a null pointer occurs.

Definition at line 1420 of file data.cc.

References isc::data::Element::boolean, copy(), isc::data::Element::integer, isc_throw, isc::data::Element::list, isc::data::Element::map, isc::data::Element::null, isc::data::Element::real, and isc::data::Element::string.

Referenced by isc::dhcp::ClientClassDictionary::ClientClassDictionary(), copy(), isc::netconf::NetconfSimpleParser::deriveParameters(), isc::dhcp::Memfile_LeaseMgr::extractExtendedInfo4(), isc::yang::Adaptor::getContext(), isc::dhcp::Option::getOptionsCopy(), isc::ha::HAConfig::getOtherServersConfig(), isc::yang::TranslatorConfig::getServerKeaDhcp4(), isc::dhcp::ClientClassDictionary::operator=(), isc::dhcp::DHCPQueueControlParser::parse(), isc::netconf::NetconfCfgMgr::parse(), isc::lease_cmds::Lease4Parser::parse(), isc::lease_cmds::Lease6Parser::parse(), isc::yang::AdaptorConfig::preProcess4(), isc::yang::AdaptorConfig::preProcess6(), isc::yang::AdaptorConfig::sanitizeDatabase(), isc::netconf::NetconfSimpleParser::setAllDefaults(), isc::dhcp::Pkt::setCopyRetrievedOptions(), isc::dhcp::Pkt4o6::setCopyRetrievedOptions(), isc::netconf::NetconfSimpleParser::setServerDefaults(), isc::dhcp::LibDHCP::splitOptions4(), isc::data::UserContext::toElement(), isc::dhcp::AllocEngine::updateLease4ExtendedInfo(), isc::dhcp::AllocEngine::updateLease6ExtendedInfo(), isc::dhcp::LeaseMgr::upgradeLease4ExtendedInfo(), and isc::dhcp::LeaseMgr::upgradeLease6ExtendedInfo().

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◆ extend()

void isc::data::extend	(	const std::string &	container,
		const std::string &	extension,
		ElementPtr &	element,
		ElementPtr &	other,
		HierarchyDescriptor &	hierarchy,
		std::string	key,
		size_t	idx = 0,
		bool	alter = false )

Extends data by adding the specified 'extension' elements from 'other' inside the 'container' element (recursively).

Both elements must be the same Element type. Raises a TypeError if elements are not the same Element type.

Parameters

container	The container holding the data that must be extended.
extension	The name of the element that contains the data that must be added (if not already present) in order to extend the initial data.
element	The element from which new data is added.
other	The element containing the data which needs to be added.
hierarchy	The hierarchy describing the elements relations and identification keys.
key	The container holding the current element.
idx	The level inside the hierarchy the current element is located.
alter	The flag which indicates if the current element should be updated.

Definition at line 1368 of file data.cc.

References extend(), isc_throw, isc::data::Element::list, isc::data::Element::map, and isc::data::Element::null.

Referenced by extend().

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◆ isEquivalent()

bool isc::data::isEquivalent	(	ConstElementPtr	a,
		ConstElementPtr	b )

Compares the data with other using unordered lists.

This comparison function handles lists (JSON arrays) as unordered multi sets (multi means an item can occurs more than once as soon as it occurs the same number of times).

Definition at line 1542 of file data.cc.

◆ isNull()

bool isc::data::isNull ( ConstElementPtr p )

Checks whether the given ElementPtr is a NULL pointer.

Parameters

p	The ElementPtr to check

Returns: true if it is NULL, false if not.

Definition at line 1148 of file data.cc.

Referenced by isc::hooks::HooksConfig::equal(), isc::d2::D2CfgContext::toElement(), isc::dhcp::SrvConfig::toElement(), and isc::hooks::HooksConfig::toElement().

◆ merge()

void isc::data::merge	(	ElementPtr	element,
		ConstElementPtr	other )

Merges the data from other into element.

(on the first level). Both elements must be MapElements. Every string, value pair in other is copied into element (the ElementPtr of value is copied, this is not a new object) Unless the value is a NullElement, in which case the key is removed from element, rather than setting the value to the given NullElement. This way, we can remove values from for instance maps with configuration data (which would then result in reverting back to the default). Raises a TypeError if either ElementPtr is not a MapElement

Definition at line 1199 of file data.cc.

References isc_throw, isc::data::Element::map, and isc::data::Element::null.

Referenced by isc::agent::AgentParser::parse(), isc::d2::D2Parser::parse(), isc::dhcp::Dhcp4Parser::parse(), isc::dhcp::Dhcp6Parser::parse(), isc::netconf::NetconfParser::parse(), isc::dhcp::Subnet4::toElement(), and isc::dhcp::Subnet6::toElement().

◆ mergeDiffAdd()

void isc::data::mergeDiffAdd	(	ElementPtr &	element,
		ElementPtr &	other,
		HierarchyDescriptor &	hierarchy,
		std::string	key,
		size_t	idx = 0 )

Merges the diff data by adding the missing elements from 'other' to 'element' (recursively).

Both elements must be the same Element type. Raises a TypeError if elements are not the same Element type.

Note

for non map and list elements the values are updated with the new values for maps:

non map and list elements are added/updated with the new values
list and map elements are processed recursively for lists:
regardless of the element type, all elements from 'other' are added to 'element'

Parameters

element	The element to which new data is added.
other	The element containing the data which needs to be added.
hierarchy	The hierarchy describing the elements relations and identification keys.
key	The container holding the current element.
idx	The level inside the hierarchy the current element is located.

Definition at line 1217 of file data.cc.

References isc::data::Element::createList(), isc_throw, isc::data::Element::list, isc::data::Element::map, mergeDiffAdd(), and isc::data::Element::null.

Referenced by mergeDiffAdd().

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◆ mergeDiffDel()

void isc::data::mergeDiffDel	(	ElementPtr &	element,
		ElementPtr &	other,
		HierarchyDescriptor &	hierarchy,
		std::string	key,
		size_t	idx = 0 )

Merges the diff data by removing the data present in 'other' from 'element' (recursively).

Both elements must be the same Element type. Raises a TypeError if elements are not the same Element type. for non map and list elements the values are set to NullElement for maps:

non map and list elements are removed from the map
list and map elements are processed recursively for lists:
regardless of the element type, all elements from 'other' matching elements in 'element' are removed

Parameters

element	The element from which new data is removed.
other	The element containing the data which needs to be removed.
hierarchy	The hierarchy describing the elements relations and identification keys.
key	The container holding the current element.
idx	The level inside the hierarchy the current element is located.

Definition at line 1278 of file data.cc.

References isc::data::Element::createMap(), isc_throw, isc::data::Element::list, isc::data::Element::map, mergeDiffDel(), isc::data::Element::null, and isc::data::Element::size().

Referenced by mergeDiffDel().

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◆ operator!=()

bool isc::data::operator!=	(	const Element &	a,
		const Element &	b )

Definition at line 222 of file data.cc.

◆ operator<()

bool isc::data::operator<	(	Element const &	a,
		Element const &	b )

Definition at line 226 of file data.cc.

References isc::data::Element::boolean, isc::data::Element::boolValue(), isc::data::Element::doubleValue(), isc::data::Element::getType(), isc::data::Element::integer, isc::data::Element::intValue(), isc_throw, isc::data::Element::real, isc::data::Element::string, and isc::data::Element::stringValue().

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◆ operator<<() [1/3]

std::ostream & isc::data::operator<<	(	std::ostream &	os,
		const ServerTag &	server_tag )

Insert the ServerTag as a string into stream.

Parameters

os	stream to insert server tag into.
server_tag	server tag to be converted to text and inserted into a stream.

Returns: Reference to the stream object with inserted server tag.

Definition at line 46 of file server_tag.cc.

◆ operator<<() [2/3]

std::ostream & isc::data::operator<<	(	std::ostream &	out,
		const Element &	e )

Insert the Element as a string into stream.

This method converts the ElementPtr into a string with Element::str() and inserts it into the output stream out.

This function overloads the global operator<< to behave as described in ostream::operator<< but applied to ElementPtr objects.

Parameters

out	A `std::ostream` object on which the insertion operation is performed.
e	The `ElementPtr` object to insert.

Returns: A reference to the same std::ostream object referenced by parameter out after the insertion operation.

Definition at line 212 of file data.cc.

◆ operator<<() [3/3]

std::ostream & isc::data::operator<<	(	std::ostream &	out,
		const Element::Position &	pos )

Insert Element::Position as a string into stream.

This operator converts the Element::Position into a string and inserts it into the output stream out.

Parameters

out	A `std::ostream` object on which the insertion operation is performed.
pos	The `Element::Position` structure to insert.

Returns: A reference to the same std::ostream object referenced by parameter out after the insertion operation.

Definition at line 47 of file data.cc.

◆ operator==()

bool isc::data::operator==	(	const Element &	a,
		const Element &	b )

Definition at line 218 of file data.cc.

◆ prettyPrint() [1/2]

void isc::data::prettyPrint	(	ConstElementPtr	element,
		std::ostream &	out,
		unsigned	indent = 0,
		unsigned	step = 2 )

Pretty prints the data into stream.

This operator converts the ConstElementPtr into a string and inserts it into the output stream out with an initial indentation indent and add at each level step spaces. For maps if there is a comment property it is printed first.

Parameters

element	A `ConstElementPtr` to pretty print
out	A `std::ostream` on which the print operation is performed
indent	An initial number of spaces to add each new line
step	A number of spaces to add to indentation at a new level

Definition at line 1547 of file data.cc.

References isc_throw, isc::data::Element::list, isc::data::Element::map, and prettyPrint().

Referenced by isc::netconf::NetconfAgent::change(), isc::dhcp::Memfile_LeaseMgr::checkLimits4(), isc::dhcp::Memfile_LeaseMgr::checkLimits6(), isc::netconf::StdoutControlSocket::configSet(), isc::netconf::NetconfAgent::done(), isc::test::expectEqWithDiff(), isc::test::expectEqWithDiff(), isc::dhcp::ClassLeaseCounter::getLeaseClientClasses(), isc::netconf::NetconfAgent::keaConfig(), prettyPrint(), prettyPrint(), isc::process::Daemon::writeConfigFile(), and isc::netconf::NetconfAgent::yangConfig().

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◆ prettyPrint() [2/2]

std::string isc::data::prettyPrint	(	ConstElementPtr	element,
		unsigned	indent = 0,
		unsigned	step = 2 )

Pretty prints the data into string.

This operator converts the ConstElementPtr into a string with an initial indentation indent and add at each level step spaces. For maps if there is a comment property it is printed first.

Parameters

element	A `ConstElementPtr` to pretty print
indent	An initial number of spaces to add each new line
step	A number of spaces to add to indentation at a new level

Returns: a string where element was pretty printed

Definition at line 1635 of file data.cc.

References prettyPrint().

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◆ removeIdentical() [1/2]

ConstElementPtr isc::data::removeIdentical	(	ConstElementPtr	a,
		ConstElementPtr	b )

Create a new ElementPtr from the first ElementPtr, removing all values that are equal in the second.

Both ElementPtrs MUST be MapElements. The returned ElementPtr will be a MapElement that only contains new and changed values (for ModuleCCSession and configuration update handlers). Raises a TypeError if a or b are not MapElements

Definition at line 1176 of file data.cc.

References isc::data::Element::createMap(), isc_throw, and isc::data::Element::map.

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◆ removeIdentical() [2/2]

void isc::data::removeIdentical	(	ElementPtr	a,
		ConstElementPtr	b )

Remove all values from the first ElementPtr that are equal in the second.

Both ElementPtrs MUST be MapElements The use for this function is to end up with a MapElement that only contains new and changed values (for ModuleCCSession and configuration update handlers) Raises a TypeError if a or b are not MapElements

Definition at line 1153 of file data.cc.

References isc_throw, and isc::data::Element::map.

Classes

Typedefs

Functions

Typedef Documentation

◆ ConstElementPtr

◆ ElementPtr

◆ FunctionMap

◆ HierarchyDescriptor

◆ IsKeyTestFunc

◆ MatchTestFunc

◆ NoDataTestFunc

◆ ParamsList

◆ SimpleDefaults

◆ SimpleKeywords

◆ SimpleRequiredKeywords

◆ StampedValueCollection

◆ StampedValuePtr

Function Documentation

◆ copy()

◆ extend()

◆ isEquivalent()

◆ isNull()

◆ merge()

◆ mergeDiffAdd()

◆ mergeDiffDel()

◆ operator!=()

◆ operator<()

◆ operator<<() [1/3]

◆ operator<<() [2/3]

◆ operator<<() [3/3]

◆ operator==()

◆ prettyPrint() [1/2]

◆ prettyPrint() [2/2]

◆ removeIdentical() [1/2]

◆ removeIdentical() [2/2]