Micro Services Classes

This category includes classes related to the C++ Micro Services component. More...

Collaboration diagram for Micro Services Classes:

Namespaces
	us::ServiceConstants

Classes
class	us::LDAPFilter
class	us::Module
struct	us::ModuleActivator
class	ModuleContext
class	us::ModuleEvent
struct	us::ModuleEventHook
struct	us::ModuleFindHook
class	us::ModuleRegistry
class	us::ModuleResource
class	us::ModuleResourceStream
class	us::ModuleSettings
class	us::ModuleVersion
struct	us::PrototypeServiceFactory
class	us::ServiceEvent
struct	ServiceEventListenerHook
class	us::ServiceException
class	us::ServiceFactory
struct	us::ServiceFindHook
struct	us::InterfaceType< Interface >
struct	us::MakeInterfaceMap< I1, I2, I3 >
class	us::ServiceObjects< S >
class	us::ServiceObjects< void >
class	us::ServiceReferenceBase
class	us::ServiceRegistration< I1, I2, I3 >
class	us::ServiceRegistrationBase
struct	us::TrackedTypeTraitsBase< T, TTT >
struct	us::TrackedTypeTraits< S, T * >
class	us::ServiceTracker< S, TTT >
struct	us::ServiceTrackerCustomizer< S, T >

Macros
#define	US_EXPORT_MODULE_ACTIVATOR(_activator_type)
	Export a module activator class. More...
#define	US_INITIALIZE_STATIC_MODULE(_module_name)
	Initialize a static module. More...
#define	US_IMPORT_MODULE(_module_name)
	Import a static module. More...
#define	US_INITIALIZE_MODULE
	Creates initialization code for a module. More...
#define	US_DECLARE_SERVICE_INTERFACE(_service_interface_type, _service_interface_id)
	Declare a service interface id. More...

Typedefs
typedef std::map< std::string, void * >	us::InterfaceMap
typedef US_UNORDERED_MAP_TYPE< std::string, Any >	us::ServiceProperties
typedef ServiceRegistration< void >	us::ServiceRegistrationU

Functions
static ModuleContext *	us::GetModuleContext ()
	Returns the module context of the calling module. More...
US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::LDAPFilter &filter)
US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::Module &module)
US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, us::Module const *module)
US_MSVC_POP_WARNING US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::ModuleResource &resource)
US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::ModuleVersion &v)
template<class T >
std::string	us_service_interface_iid ()
template<class I1 >
I1 *	us::ExtractInterface (const InterfaceMap &map)
US_MSVC_POP_WARNING US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::ServiceReferenceBase &serviceRef)
US_Core_EXPORT std::ostream &	us::operator<< (std::ostream &os, ModuleEvent::Type eventType)
US_Core_EXPORT std::ostream &	us::operator<< (std::ostream &os, const ModuleEvent &event)
US_Core_EXPORT std::ostream &	us::operator<< (std::ostream &os, const ServiceEvent::Type &type)
US_Core_EXPORT std::ostream &	us::operator<< (std::ostream &os, const ServiceEvent &event)
US_Core_EXPORT std::ostream &	operator<< (std::ostream &os, const us::ServiceException &exc)

Detailed Description

This category includes classes related to the C++ Micro Services component.

The C++ Micro Services component provides a dynamic service registry based on the service layer as specified in the OSGi R4.2 specifications.

Macro Definition Documentation

US_DECLARE_SERVICE_INTERFACE

#define US_DECLARE_SERVICE_INTERFACE	(		_service_interface_type,
			_service_interface_id
	)

Declare a service interface id.

This macro associates the given identifier _service_interface_id (a string literal) to the interface class called _service_interface_type. The Identifier must be unique. For example:

#include <usServiceInterface.h>
 
struct ISomeInterace { ... };
 
US_DECLARE_SERVICE_INTERFACE(ISomeInterface, "com.mycompany.service.ISomeInterface/1.0")

The usage of this macro is optional and the service interface id which is automatically associated with any type is usually good enough (the demangled type name). However, care must be taken if the default id is compared with a string literal hard-coding a service interface id. E.g. the default id for templated types in the STL may differ between platforms. For user-defined types and templates the ids are typically consistent, but platform specific default template arguments will lead to different ids.

This macro is normally used right after the class definition for _service_interface_type, in a header file.

If you want to use US_DECLARE_SERVICE_INTERFACE with interface classes declared in a namespace then you have to make sure the US_DECLARE_SERVICE_INTERFACE macro call is not inside a namespace though. For example:

#include <usServiceInterface.h>
 
namespace Foo
{
  struct ISomeInterface { ... };
}
 
US_DECLARE_SERVICE_INTERFACE(Foo::ISomeInterface, "com.mycompany.service.ISomeInterface/1.0")

Parameters

_service_interface_type	The service interface type.
_service_interface_id	A string literal representing a globally unique identifier.

Definition at line 104 of file usServiceInterface.h.

US_EXPORT_MODULE_ACTIVATOR

#define US_EXPORT_MODULE_ACTIVATOR

(

_activator_type

)

Export a module activator class.

Parameters

_activator_type

The fully-qualified type-name of the module activator class.

Call this macro after the definition of your module activator to make it accessible by the CppMicroServices library.

Example:

class MyActivator : public ModuleActivator
{
 
public:
 
  void Load(ModuleContext* /*context*/) override
  { /* register stuff */ }
 
 
  void Unload(ModuleContext* /*context*/) override
  { /* cleanup */ }
 
};
 
US_EXPORT_MODULE_ACTIVATOR(MyActivator)

Definition at line 119 of file usModuleActivator.h.

US_IMPORT_MODULE

#define US_IMPORT_MODULE

(

_module_name

)

Import a static module.

Parameters

_module_name

The name of the module to import.

This macro imports the static module named _module_name.

Inserting this macro into your application's source code will allow you to make use of a static module. It will initialize the static module and calls its ModuleActivator. It the module does not provide an activator, use the US_INITIALIZE_STATIC_MODULE macro instead. Do not forget to actually link the static module to the importing executable or shared library.

Example:

#include <usModuleImport.h>
 
US_IMPORT_MODULE(MyStaticModule1)

See also

US_INITIALIZE_STATIC_MODULE

US_IMPORT_MODULE_RESOURCES

Static Modules

Definition at line 85 of file usModuleImport.h.

US_INITIALIZE_MODULE

#define US_INITIALIZE_MODULE

Creates initialization code for a module.

Each module which wants to register itself with the CppMicroServices library has to put a call to this macro in one of its source files. Further, the modules source files must be compiled with the US_MODULE_NAME pre-processor definition set to a module-unique identifier.

Calling the US_INITIALIZE_MODULE macro will initialize the module for use with the CppMicroServices library, using a default auto-load directory named after the US_MODULE_NAME definition.

See also

MicroServices_AutoLoading

Remarks

If you are using CMake, consider using the provided CMake macro usFunctionGenerateModuleInit().

Definition at line 57 of file usModuleInitialization.h.

US_INITIALIZE_STATIC_MODULE

#define US_INITIALIZE_STATIC_MODULE

(

_module_name

)

Initialize a static module.

Parameters

_module_name

The name of the module to initialize.

This macro initializes the static module named _module_name.

It the module provides an activator, use the US_IMPORT_MODULE macro instead, to ensure that the activator is called. Do not forget to actually link the static module to the importing executable or shared library.

See also

US_IMPORT_MODULE

US_IMPORT_MODULE_RESOURCES

Static Modules

Definition at line 52 of file usModuleImport.h.

Typedef Documentation

InterfaceMap

typedef std::map<std::string, void*> us::InterfaceMap

A map containing interfaces ids and their corresponding service object pointers. InterfaceMap instances represent a complete service object which implements one or more service interfaces. For each implemented service interface, there is an entry in the map with the key being the service interface id and the value a pointer to the service interface implementation.

To create InterfaceMap instances, use the MakeInterfaceMap helper class.

Note

This is a low-level type and should only rarely be used.

See also

MakeInterfaceMap

Definition at line 138 of file usServiceInterface.h.

ServiceProperties

typedef US_UNORDERED_MAP_TYPE<std::string, Any> us::ServiceProperties

A hash table with std::string as the key type and Any as the value type. It is typically used for passing service properties to ModuleContext::RegisterService.

Definition at line 42 of file usServiceProperties.h.

ServiceRegistrationU

typedef ServiceRegistration<void> us::ServiceRegistrationU

A service registration object of unknown type.

Definition at line 199 of file usServiceRegistration.h.

Function Documentation

ExtractInterface()

template<class I1 >

I1* us::ExtractInterface

(

const InterfaceMap &

map

)

Extract a service interface pointer from a given InterfaceMap instance.

Parameters

map	a InterfaceMap instance.

Returns

The service interface pointer for the service interface id of the I1 interface type or nullptr if map does not contain an entry for the given type.

See also

MakeInterfaceMap

Definition at line 330 of file usServiceInterface.h.

GetModuleContext()

static ModuleContext* us::GetModuleContext ( )

inlinestatic

Returns the module context of the calling module.

This function allows easy access to the ModuleContext instance from inside a C++ Micro Services module.

Returns

The ModuleContext of the calling module.

Definition at line 50 of file usGetModuleContext.h.

References us::Module::GetModuleContext().

operator<<() [1/11]

US_Core_EXPORT std::ostream& us::operator<<	(	std::ostream &	os,
		const ModuleEvent &	event
	)

operator<<() [2/11]

US_Core_EXPORT std::ostream& us::operator<<	(	std::ostream &	os,
		const ServiceEvent &	event
	)

operator<<() [3/11]

US_Core_EXPORT std::ostream& us::operator<<	(	std::ostream &	os,
		const ServiceEvent::Type &	type
	)

operator<<() [4/11]

US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::LDAPFilter &	filter
	)

operator<<() [5/11]

US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::Module &	module
	)

operator<<() [6/11]

US_MSVC_POP_WARNING US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::ModuleResource &	resource
	)

operator<<() [7/11]

US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::ModuleVersion &	v
	)

operator<<() [8/11]

US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::ServiceException &	exc
	)

operator<<() [9/11]

US_MSVC_POP_WARNING US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const us::ServiceReferenceBase &	serviceRef
	)

operator<<() [10/11]

US_Core_EXPORT std::ostream& us::operator<<	(	std::ostream &	os,
		ModuleEvent::Type	eventType
	)

operator<<() [11/11]

US_Core_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		us::Module const *	module
	)

us_service_interface_iid()

template<class T >

std::string us_service_interface_iid

(

)

Returns a unique id for a given type. By default, the demangled name of T is returned.

This template method may be specialized directly or be using the macro US_DECLARE_SERVICE_INTERFACE to return a custom id for each service interface.

Template Parameters

T	The service interface type.

Returns

A unique id for the service interface type T.

Definition at line 50 of file usServiceInterface.h.

References us::GetDemangledName(), and US_PREPEND_NAMESPACE.