Description:

This class provides a very simple implementation of abstract interface class ResourcePool, which does not externalize resources.

A shared instance of this class is attached to each ALib Module, if the bootstrapping of ALib is not customized.

With the use of type HashTable for its internal data management, this class uses monotonically growing memory taken from the global allocator.

Only pointers to the given resources (as well as their associated category and name strings) are stored, hence all string argument's of this class's methods have to be static data.

For debug or optimization purposes, method BootstrapGetInternalHashMap is given that allows fine-tune the performance parameters or to inspect the data. For the latter, in debug-compilations, consider also methods DbgGetList and DbgGetCategories.

See also: Please consult chapter 3. Namespace alib::lang::resources of the Programmer's Manual of module ALib BaseCamp for details on the concept of resources. Some details on this specific type are given in chapter 3.4.1 Class LocalResourcePool.

Definition at line 44 of file localresourcepool.hpp.

#include <localresourcepool.hpp>

Inheritance diagram for LocalResourcePool:

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Collaboration diagram for LocalResourcePool:

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Public Static Field Index:
static std::ostream *	DbgResourceLoadObserver = nullptr

Public Method Index:
	LocalResourcePool ()
	Constructor.

virtual ALIB_API	~LocalResourcePool () override
	Destructor.

virtual ALIB_API bool	BootstrapAddOrReplace (const NString &category, const NString &name, const String &data) override

virtual ALIB_API void	BootstrapBulk (const nchar *category,...) override

detail::StaticResourceMap &	BootstrapGetInternalHashMap ()

virtual ALIB_API std::vector< std::pair< NString, integer > >	DbgGetCategories () override

virtual ALIB_API std::vector< std::tuple< NString, NString, String, integer > >	DbgGetList () override

virtual NALIB_API const String &	Get (const NString &category, const NString &name, bool dbgAssert) override

Public Method Index: inherited from ResourcePool
virtual	~ResourcePool ()=default
	Virtual destructor.

void	Bootstrap (const NString &category, const NString &name, const String &data)

const String &	Get (const NString &category, const String &name, bool dbgAssert)

Protected Field Index:
detail::StaticResourceMap	data
	A hash map used to store static resources.

Additional Inherited Members
Public Static Method Index: inherited from ResourcePool
static ALIB_API AString	DbgDump (std::vector< std::tuple< NString, NString, String, integer > > &list, const NString &catFilter=nullptr, const String &format=A_CHAR("({3:}) {1}={2!TAB20!ESC<!Q}\n"))

Field Details:

◆ data

detail::StaticResourceMap data

protected

A hash map used to store static resources.

Definition at line 48 of file localresourcepool.hpp.

◆ DbgResourceLoadObserver

std::ostream * DbgResourceLoadObserver = nullptr

static

If set before bootstrapping (e.g., to &std::cout), then each found resource string is written here. This is very useful to find errors in bulk resource strings, for example a simple missing comma.

Availability: Available only if compiler symbol ALIB_DEBUG_RESOURCES is set.

See also: Manual section 3.6.3 Debug- And Usage Statistics.

Definition at line 59 of file localresourcepool.hpp.

Constructor(s) / Destructor Details:

◆ LocalResourcePool()

LocalResourcePool ( )

inline

Constructor.

Definition at line 67 of file localresourcepool.hpp.

◆ ~LocalResourcePool()

virtual ALIB_API ~LocalResourcePool ( )

inlineoverridevirtual

Destructor.

Definition at line 74 of file localresourcepool.hpp.

Method Details:

◆ BootstrapAddOrReplace()

bool BootstrapAddOrReplace	(	const NString &	category,
		const NString &	name,
		const String &	data )

overridevirtual

Implements abstract method ResourcePool::BootstrapAddOrReplace.

Note: If compiler symbol ALIB_DEBUG_RESOURCES is set on compilation and static field LocalResourcePool::DbgResourceLoadObserver is set before bootstrapping, this method will write information about whether the given data is added or replaced to the debug output stream.

Parameters

category	Category string of the resource to add.
name	Name string of the resource.
data	The resource data.

Returns: true if the resource did exist and was replaced, false if it was an insertion.

Implements ResourcePool.

Definition at line 37 of file localresourcepool.cpp.

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◆ BootstrapBulk()

void BootstrapBulk	(	const nchar *	category,
			... )

overridevirtual

Implements abstract method ResourcePool::BootstrapBulk.

Parameters

category	The category of the resources given.
...	A list of pairs of const nchar* and const character* keys and data, including a terminating `nullptr` value.

Implements ResourcePool.

Definition at line 57 of file localresourcepool.cpp.

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◆ BootstrapGetInternalHashMap()

detail::StaticResourceMap & BootstrapGetInternalHashMap ( )

inline

Returns the internal table that maps a pair of category and name strings to the resource string.

Access to this map may be useful for two purposes:

Debug inspection.
Modification of the parameters of the hash table. (For example, the use of methods Reserve, BaseLoadFactor or MaxLoadFactor).

Modifications on the returned object are allowed only while no threads have been started by the software process (respectively no threads that use ALib ), which usually is true during bootstrapping a process. Therefore the prefix in this method's name.

Returns: The internal hash map.

Definition at line 92 of file localresourcepool.hpp.

◆ DbgGetCategories()

std::vector< std::pair< NString, integer > > DbgGetCategories ( )

overridevirtual

Implements abstract method ResourcePool::DbgGetCategories.

Availability: Available only if compiler symbol ALIB_DEBUG_RESOURCES is set.

Returns: The externalized resource string.

Reimplemented from ResourcePool.

Definition at line 170 of file localresourcepool.cpp.

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◆ DbgGetList()

std::vector< std::tuple< NString, NString, String, integer > > DbgGetList ( )

overridevirtual

Implements abstract method ResourcePool::DbgGetList.

Availability: Available only if compiler symbol ALIB_DEBUG_RESOURCES is set.

Returns: The externalized resource string.

Reimplemented from ResourcePool.

Definition at line 140 of file localresourcepool.cpp.

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◆ Get()

const String & Get	(	const NString &	category,
		const NString &	name,
		bool	dbgAssert )

overridevirtual

Implements abstract method ResourcePool::Get.

Parameters

category	Category string of the resource.
name	Name string of the resource
dbgAssert	This parameter is available (and to be passed) only in debug mode. If `true`, an assertion is raised if the resource was not found.

Returns: The resource string, respectively a nulled string on failure.

Implements ResourcePool.

Definition at line 95 of file localresourcepool.cpp.

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

Description:

Public Static Field Index:

Public Method Index:

Protected Field Index:

Additional Inherited Members

Field Details:

◆ data

◆ DbgResourceLoadObserver

Constructor(s) / Destructor Details:

◆ LocalResourcePool()

◆ ~LocalResourcePool()

Method Details:

◆ BootstrapAddOrReplace()

◆ BootstrapBulk()

◆ BootstrapGetInternalHashMap()

◆ DbgGetCategories()

◆ DbgGetList()

◆ Get()