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#ifndef SERVICEMANAGER_H
#define SERVICEMANAGER_H
#include <kore/kore.h>
#include <kore/serviceprovider.h>
#ifdef WIN32
#include <map>
#else
#if (__GNUC__<3)
#include <hash_map>
#else
#include <ext/hash_map>
#endif
#endif
#include <set>
namespace kore
{
/**
* class kore::ServiceManager - provides Kore Service management.
* When creating a new ServiceProvider instance, you have to register the services
* it provides to the ServiceManager, as well as unregister them right before
* the instance will get destroyed.
* The ServiceManager can be queried (registered...(...)) for the existing
* registered Services and ServiceProviders.
*/
class KORE_API ServiceManager : public ServiceProvider
{
public:
/**
* Default constructor. Creates a new ServiceManager instance.
*/
ServiceManager();
/**
* Destructor.
*/
virtual ~ServiceManager();
/**
* Registers all the services provided by the given ServiceProvider.
* @param provider - the ServiceProvider whos services to be registered.
*/
virtual void registerProvider(ServiceProvider* provider);
/**
* Unregisters all the services provided by the given ServiceProvider.
* @param provider - the ServiceProvider whos services to be unregistered.
*/
virtual void unregisterProvider(ServiceProvider* provider);
/**
* Registers all the services provided by the given ServiceProviders.
* @param providers - NULL-teminated array with ServiceProviders whos
* services to be registered.
*/
virtual void registerProviders(ServiceProvider** providers);
/**
* Unregisters ALL the Services registered to this ServiceManager.
*/
virtual void unregisterProviders();
/**
* Registers the given Service to this ServiceManager.
* @param service - the Service to be registered.
*/
// TO DO: do not register services that are already registered
virtual void registerService(const Service* service);
/**
* Unregisters the given Service from this ServiceManager.
* @param service - the Service to be unregistered.
*/
virtual void unregisterService(const Service* service);
/**
* Registers a list of Services to this ServiceManager.
* @param srvs - NULL-terminated array of Services to be registered.
*/
virtual void registerServices(const Service** srvs);
/**
* Unregisters ALL the Services registered to this ServiceManager.
*/
virtual void unregisterServices();
/**
* Gets the list of Services registered to this ServiceManager.
* @return - NULL-terminated array containing all the Services
* registered to this ServiceManager. Please note that it's the user's
* responsability to delete[] the returned array when it's no longer needed.
*/
virtual const Service** registeredServices() const;
/**
* Gets the list of Services provided by the given ServiceProvider
* AND registered to this ServiceManager.
* @param provider - the ServiceProvider whos services to be returned.
* @return - NULL-terminated array containing the Services.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
virtual const Service** registeredServices(ServiceProvider* provider) const;
/**
* Gets the list of Services registered to this ServiceManager
* AND matching the given Service.
* @param service - the service whos name is used for matching.
* @return - NULL-terminated array containing the Services.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
// TODO: define Service name mathcing rules.
virtual const Service** registeredServices(const Service* service) const;
/**
* Gets the list of Services registered to this ServiceManager
* AND matching the given Service name.
* @param service - the service name to be used for matching.
* @return - NULL-terminated array containing the Services.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
virtual const Service** registeredServices(const char* service) const;
/**
* Gets the first Service best matching the given Service.
* @param service - the service whos name is used for matching.
* @return - the first best matching Service.
*/
// TODO: define Service name matching priorities.
virtual const Service* registeredService(const Service* service) const;
/**
* Gets the first Service best matching the given Service name.
* @param service - the service name to be used for matching.
* @return - the first best matching Service.
*/
virtual const Service* registeredService(const char* service) const;
/**
* Gets the list of ServiceProviders which have Services registered
* to this ServiceManager.
* @return - NULL-terminated array containing the ServicesProviders.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
virtual ServiceProvider** registeredProviders() const;
/**
* Gets the list of ServiceProviders which have Services registered
* to this ServiceManager AND matching the given Service.
* @param service - the service whos name is used for matching.
* @return - NULL-terminated array containing the ServicesProviders.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
virtual ServiceProvider** registeredProviders(const Service* service) const;
/**
* Gets the list of ServiceProviders which have Services registered
* to this ServiceManager AND matching the given Service name.
* @param service - the service name to be used for matching.
* @return - NULL-terminated array containing the ServicesProviders.
* Please note that it's the user's responsability to delete[]
* the returned array when it's no longer needed.
*/
virtual ServiceProvider** registeredProviders(const char* service) const;
/**
* Gets the first ServiceProvider which has a Service best matching the
* given Service.
* @param service - the service whos name is used for matching.
* @return - the first best matching ServiceProvider.
*/
virtual ServiceProvider* registeredProvider(const Service* service) const;
/**
* Gets the first ServiceProvider which has a Service best matching the
* given Service name.
* @param service - the service name to be used for matching.
* @return - the first best matching ServiceProvider.
*/
virtual ServiceProvider* registeredProvider(const char* service) const;
protected:
private:
// current SM version
const Version* _smVersion;
// Kernel API version required by SM
const Version* _smAPIVersion;
// SM info
const Info* _smInfo;
// basic SM service
const Service* _smService;
#ifdef WIN32
struct ltstr
{
bool operator()(const char* s1, const char* s2) const
{
return strcmp(s1,s2) == -1;
}
};
// Windows STL doesn't have stl::hash_multimap
typedef multimap<const char*,const Service*, ltstr> srv_hash_type;
#else
struct eqstr
{
bool operator()(const char* s1, const char* s2) const
{
return strcmp(s1,s2) == 0;
}
};
typedef hash_multimap<const char*,const Service*, hash<const char*>, eqstr> srv_hash_type;
#endif
struct ltptr
{
bool operator()(ServiceProvider* sp1, ServiceProvider* sp2) const
{
return sp1 < sp2;
}
};
typedef set<ServiceProvider* , ltptr> sp_set_type;
// the list (multimap<key: service name, value: Service>) of Services
// registered to this ServiceManager
srv_hash_type _services;
};
};
#endif
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