Parameter store. More...

#include <params.h>

Inheritance diagram for SST::Params:

Public Types
typedef std::string	key_type

typedef std::set< key_type, KeyCompare >	KeySet_t

Public Member Functions
bool	enableVerify (bool enable)
	Enable or disable parameter verification on an instance of Params. More...

size_t	size () const
	Returns the size of the Params. More...

bool	empty () const
	Returns true if the Params is empty. More...

	Params ()
	Create a new, empty Params.

	Params (const Params &old)
	Create a copy of a Params object.

Params &	operator= (const Params &old)
	Assignment operator. More...

void	clear ()
	Erases all elements, including deleting reference to global param sets.

size_t	count (const key_type &k) const
	Finds the number of elements with given key. More...

template<class T >
std::enable_if< not std::is_same< std::string, T > ::value, T >::type	find (const std::string &k, T default_value, bool &found) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
T	find (const std::string &k, const std::string &default_value, bool &found) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
std::enable_if< std::is_same < bool, T >::value, T >::type	find (const std::string &k, const char *default_value, bool &found) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
T	find (const std::string &k, T default_value) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
T	find (const std::string &k, const std::string &default_value) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
std::enable_if< std::is_same < bool, T >::value, T >::type	find (const std::string &k, const char *default_value) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
T	find (const std::string &k) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
std::enable_if< not std::is_same< bool, T >::value, T >::type	find (const std::string &k, bool &found) const
	Find a Parameter value in the set, and return its value as a type T. More...

template<class T >
void	find_array (const key_type &k, std::vector< T > &vec) const
	Find a Parameter value in the set, and return its value as a vector of T's. More...

bool	is_value_array (const key_type &k) const
	Checks to see if the value associated with the given key is considered to be an array. More...

void	print_all_params (std::ostream &os, const std::string &prefix="") const
	Print all key/value parameter pairs to specified ostream.

void	print_all_params (Output &out, const std::string &prefix="") const
	Print all key/value parameter pairs to specified ostream.

void	insert (const std::string &key, const std::string &value, bool overwrite=true)
	Add a key/value pair into the param object. More...

void	insert (const Params &params)
	Add contents of input Params object to current Params object. More...

std::set< std::string >	getKeys () const
	Get all the keys contained in the Params object. More...

Params	get_scoped_params (const std::string &scope) const
	Returns a new parameter object with parameters that match the specified scoped prefix (scopes are separated with "." The keys will be stripped of the "scope." prefix. More...

Params	find_prefix_params (const std::string &prefix) const
	Returns a new parameter object with parameters that match the specified prefix.

Params	find_scoped_params (const std::string &scope, const char *delims=".:") const

bool	contains (const key_type &k) const
	Search the container for a particular key. More...

void	pushAllowedKeys (const KeySet_t &keys)

void	popAllowedKeys ()
	Removes the most recent set of keys considered allowed.

void	verifyParam (const key_type &k) const

void	addGlobalParamSet (const std::string &set)
	Adds a global param set to be looked at in this Params object if the key isn't found locally. More...

void	serialize_order (SST::Core::Serialization::serializer &ser) override

Public Member Functions inherited from SST::Core::Serialization::serializable
virtual const char *	cls_name () const =0

virtual uint32_t	cls_id () const =0

virtual std::string	serialization_name () const =0

Static Public Member Functions
static void	enableVerify ()
	Enable, on a global scale, parameter verification. More...

static void	insert_global (const std::string &set, const key_type &key, const key_type &value, bool overwrite=true)
	Adds a key/value pair to the specified global set. More...

Additional Inherited Members
Static Public Attributes inherited from SST::Core::Serialization::serializable
static constexpr uint32_t	NullClsId = std::numeric_limits<uint32_t>::max()

Protected Types inherited from SST::Core::Serialization::serializable
enum	cxn_flag_t { ConstructorFlag }

Static Protected Member Functions inherited from SST::Core::Serialization::serializable
static void	serializable_abort (uint32_t line, const char file, const char func, const char *obj)

Detailed Description

Parameter store.

Stores key-value pairs as std::strings and provides a templated find method for finding values and converting them to arbitrary types (

See Also: find()).

Member Typedef Documentation

typedef std::string SST::Params::key_type

Type of key (string)

typedef std::set<key_type, KeyCompare> SST::Params::KeySet_t

Type of a set of keys

Member Function Documentation

void SST::Params::addGlobalParamSet ( const std::string & set )

Adds a global param set to be looked at in this Params object if the key isn't found locally.

It will search the global sets in the order they were inserted and return immediately after finding the key in one of the sets.

Parameters

set	set to add to the search list for this object

bool SST::Params::contains ( const key_type & k ) const

Search the container for a particular key.

This will search both local and global params.

Parameters

k	Key to search for

Returns: True if the params contains the key, false otherwise

size_t SST::Params::count ( const key_type & k ) const

Finds the number of elements with given key.

The call will check both local and global params, but will still only report one instance if the given key is found in both the local and global param sets.

Parameters

k	Key of (key, value) pairs to be located.

Returns: Number of elements with specified key (either 1 or 0).

bool SST::Params::empty ( ) const

Returns true if the Params is empty.

Checks both local and global param sets.

Returns: true if this Params object is empty, false otherwise

References getKeys().

bool SST::Params::enableVerify ( bool enable )

inline

Enable or disable parameter verification on an instance of Params.

Useful when generating a new set of Params to pass off to a module.

Returns: returns the previous state of the flag

Referenced by find_prefix_params(), and get_scoped_params().

static void SST::Params::enableVerify ( )

inlinestatic

Enable, on a global scale, parameter verification.

Used after construction of the config graph so that warnings are not generated during construction.

template<class T >

std::enable_if<not std::is_same<std::string,T>::value, T>::type SST::Params::find	(	const std::string &	k,
		T	default_value,
		bool &	found
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type (including bool) , a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found
found	- set to true if the the parameter was found

Exceptions

std::invalid_argument If value in (key, value) can't be converted to type T, an invalid_argument exception is thrown.

Referenced by SST::Statistics::StatisticOutputJSON::checkOutputParameters(), SST::Statistics::StatisticOutputConsole::checkOutputParameters(), SST::Statistics::StatisticOutputTxt::checkOutputParameters(), SST::Statistics::StatisticOutputCSV::checkOutputParameters(), and SST::Statistics::StatisticBase::StatisticBase().

template<class T >

T SST::Params::find	(	const std::string &	k,
		const std::string &	default_value,
		bool &	found
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type (including bool) , a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found, specified as a string
found	- set to true if the the parameter was found

template<class T >

std::enable_if<std::is_same<bool,T>::value, T>::type SST::Params::find	(	const std::string &	k,
		const char *	default_value,
		bool &	found
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

This version of find is only enabled for bool. This is required because a string literal will be preferentially cast to a bool rather than a string. This ensures that find<bool> works correctly for string literals. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found, specified as a string literal

template<class T >

T SST::Params::find	(	const std::string &	k,
		T	default_value
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type (including bool), a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found

template<class T >

T SST::Params::find	(	const std::string &	k,
		const std::string &	default_value
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type (including bool) , a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found, specified as a string

template<class T >

std::enable_if<std::is_same<bool,T>::value, T>::type SST::Params::find	(	const std::string &	k,
		const char *	default_value
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

This version of find is only enabled for bool. This is required because a string literal will be preferentially cast to a bool rather than a string. This ensures that find<bool> works correctly for string literals.This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
default_value	- Default value to return if parameter isn't found, specified as a string literal

template<class T >

T SST::Params::find ( const std::string & k ) const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type (including bool) , a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name

template<class T >

std::enable_if<not std::is_same<bool, T>::value, T>::type SST::Params::find	(	const std::string &	k,
		bool &	found
	)		const

inline

Find a Parameter value in the set, and return its value as a type T.

Type T must be either a basic numeric type , a std::string, or a class that has a constructor with a std::string as its only parameter. This version of find is not enabled for bool as it conflicts with find<bool>(string key, bool default_value). This class uses SST::Core::from_string to do the conversion.

Parameters

k	- Parameter name
found	- set to true if the the parameter was found

template<class T >

void SST::Params::find_array	(	const key_type &	k,
		std::vector< T > &	vec
	)		const

inline

Find a Parameter value in the set, and return its value as a vector of T's.

The array will be appended to the end of the vector.

Type T must be either a basic numeric type (including bool) , a std::string, or a class that has a constructor with a std::string as its only parameter. This class uses SST::Core::from_string to do the conversion. The values in the array must be enclosed in square brackets ( [] ), and be comma separated (commas in double or single quotes will not be considered a delimiter). If there are no square brackets, the entire string will be considered one value and a single item will be added to the vector.

More details about parsing the values out of the string:

Parses a string representing an array of tokens. It is tailored to the types strings you get when passing a python list as the param string. When you call addParam() on a python list in the input file, it will call the str() function on the list, which creates a string with the following format: [item1, item2, item3]

The format of the items depends on where they came from. The string for the items are generated by calling the repr() function on them. For strings, this means they will typically be enclosed in single quotes. It is possible that they end up enclosed in double quotes if the string itself contains a single quote. For strings which contain both single and double quotes, the repr() will create a single quoted string with all internal single quotes escaped with '\'. Most other items used in SST do not enclose the string in quotes, though any string that contains a comma would need to be enclosed in quotes, since the comma is the delimiter character used. This is not done automatically, so if you have something that generates a commma in the string created by repr(), you may need to create an array string manually. Also, any string that starts with a quote character, must end with the same quote character.

Tokens are generated by splitting the string on commas that are not within quotes (double or single). All whitespace at the beginning and end of a token is ignored (unless inside quotes). Once the tokens are generated, any quoted string will have the front and back quotes removed. The '\' for any escaped quote of the same type as the front and back is also removed.

Examples:

These will produce the same results: [1, 2, 3, 4, 5] ['1', '2', '3', '4', '5']

Examples of strings using double and/or single quotes: 'This is "a" test' -> This is "a" test "This is 'a' test" -> This is 'a' test 'This "is \'a\'" test' -> This "is 'a'" test 'This "is \"a"" test' -> This "is "a"" test

Parameters

k	- Parameter name
vec	- vector to append array items to

References verifyParam().

Params SST::Params::get_scoped_params ( const std::string & scope ) const

Returns a new parameter object with parameters that match the specified scoped prefix (scopes are separated with "." The keys will be stripped of the "scope." prefix.

Function will search both local and global params, but all params will be copied into the local space of the new Params object.

Parameters

scope Scope to search (anything prefixed with "scope." will be included in the return Params object

Returns: New Params object with the found scoped params.

References enableVerify(), and insert().

std::set< std::string > SST::Params::getKeys ( ) const

Get all the keys contained in the Params object.

This will give both local and global params.

Referenced by empty(), and size().

void SST::Params::insert	(	const std::string &	key,
		const std::string &	value,
		bool	overwrite = `true`
	)

Add a key/value pair into the param object.

Parameters

key	key to add to the map
value	value to add to the map
overwrite	controls whether the key/value pair will overwrite an existing pair in the set

Referenced by SST::ConfigGraph::addStatisticOutputParameter(), find_prefix_params(), and get_scoped_params().

void SST::Params::insert ( const Params & params )

Add contents of input Params object to current Params object.

This will also add any pointers to global param sets after the existing pointers to global param sets in this object.

Parameters

params Params object that should added to current object

void SST::Params::insert_global	(	const std::string &	set,
		const key_type &	key,
		const key_type &	value,
		bool	overwrite = `true`
	)

static

Adds a key/value pair to the specified global set.

Parameters

set	global set to add the key/value pair to
key	key to add to the map
value	value to add to the map
overwrite	controls whether the key/value pair will overwrite an existing pair in the set

bool SST::Params::is_value_array ( const key_type & k ) const

inline

Checks to see if the value associated with the given key is considered to be an array.

A value is considered to be an array if it is enclosed in square brackets ([]). No whitespace before or after the brackets is allowed.

Parameters

k	- Parameter name

Returns: true if value is an array as described above, false otherwise.

Params & SST::Params::operator= ( const Params & old )

Assignment operator.

Parameters

old	Param to be copied

All the elements of old are copied, This will also copy over any references to global param sets

void SST::Params::pushAllowedKeys ( const KeySet_t & keys )

Parameters

keys	Set of keys to consider valid to add to the stack of legal keys

Referenced by SST::Factory::Create(), SST::Factory::CreateComponent(), SST::Factory::CreateModule(), and SST::Factory::CreateModuleWithComponent().

size_t SST::Params::size ( ) const

Returns the size of the Params.

This will count both local and global params.

Returns: number of key/value pairs in this Params object

References getKeys().

void SST::Params::verifyParam ( const key_type & k ) const

Parameters

k	Key to check for validity

Returns: True if the key is considered allowed

References SST::Output::output(), and SST::Output::STDERR.

Referenced by find_array().

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

src/sst/core/params.h
src/sst/core/params.cc

Public Types

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Member Function Documentation