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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2020 Gothel Software e.K.
* Copyright (c) 2020 ZAFENA AB
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DBT_DEV_ACCOUNTING_HPP_
#define DBT_DEV_ACCOUNTING_HPP_
#include <string>
#include <cstdio>
#include <direct_bt/DirectBT.hpp>
namespace direct_bt {
/**
* Application toolkit providing BT device registration of processed and awaited devices.
* The latter on a pattern matching basis, i.e. EUI48Sub or name-sub.
*/
namespace BTDeviceRegistry {
/**
* Specifies devices queries to act upon.
*/
struct DeviceQuery {
/**
* DeviceQuery type, i.e. EUI48Sub or a std::string name.
*/
enum class Type : int {
/** DeviceQuery type, using a sensor device EUI48Sub. */
EUI48SUB,
/** DeviceQuery type, using a sensor device std::string name. */
NAME
};
Type type;
EUI48Sub addressSub;
std::string nameSub;
DeviceQuery(const EUI48Sub& as) : type(Type::EUI48SUB), addressSub(as), nameSub() {}
DeviceQuery(const std::string& ns) : type(Type::NAME), addressSub(EUI48Sub::ANY_DEVICE), nameSub(ns) {}
bool isEUI48Sub() const noexcept { return Type::EUI48SUB == type; }
std::string toString() const {
if( Type::EUI48SUB == type ) {
return "[a: "+addressSub.toString()+"]";
} else {
return "[n: '"+nameSub+"']";
}
}
};
void addToWaitForDevices(const std::string& addrOrNameSub) noexcept;
bool isWaitingForAnyDevice() noexcept;
size_t getWaitForDevicesCount() noexcept;
std::string getWaitForDevicesString() noexcept;
/**
* Returns the reference of the current list of DeviceQuery, not a copy.
*/
jau::darray<DeviceQuery>& getWaitForDevices() noexcept;
/**
* Clears internal list
*/
void clearWaitForDevices() noexcept;
/**
* Specifies unique device identities,
* using {@link BDAddressAndType} as key.
*/
struct DeviceID {
BDAddressAndType addressAndType;
std::string name;
DeviceID(const BDAddressAndType& a, const std::string& n) : addressAndType(a), name(n) {}
DeviceID() : addressAndType(), name() {}
/**
* {@inheritDoc}
* <p>
* Implementation simply returns the BDAddressAndType hash code,
* `name` is ignored.
* </p>
*/
std::size_t hash_code() const noexcept {
return addressAndType.hash_code();
}
std::string toString() const {
return "["+addressAndType.toString()+", '"+name+"']";
}
};
/**
* {@inheritDoc}
* <p>
* Implementation simply tests the {@link BDAddressAndType} fields for equality,
* `name` is ignored.
* </p>
*/
inline bool operator==(const DeviceID& lhs, const DeviceID& rhs) noexcept {
if( &lhs == &rhs ) {
return true;
}
return lhs.addressAndType == rhs.addressAndType;
}
inline bool operator!=(const DeviceID& lhs, const DeviceID& rhs) noexcept
{ return !(lhs == rhs); }
void addToProcessedDevices(const BDAddressAndType &a, const std::string& n) noexcept;
bool isDeviceProcessed(const BDAddressAndType & a) noexcept;
size_t getProcessedDeviceCount() noexcept;
std::string getProcessedDevicesString() noexcept;
/**
* Returns a copy of the current collection of processed DeviceID.
*/
jau::darray<DeviceID> getProcessedDevices() noexcept;
/**
* Clears internal list
*/
void clearProcessedDevices() noexcept;
/**
* Function for user defined BTDeviceRegistry::DeviceQuery matching criteria and algorithm.
* <p>
* Return {@code true} if the given {@code address} and/or {@code name} matches
* with the BTDeviceRegistry::DeviceQuery::addressSub and/or
* BTDeviceRegistry::DeviceQuery::nameSub.
* </p>
* <p>
* Example (lambda):
* <pre>
* [](const EUI48& a, const std::string& n, const DeviceQuery& q)->bool {
* return q.isEUI48Sub() ? a.contains(q.addressSub) : n.find(q.nameSub) != std::string::npos;
* });
* </pre>
* </p>
*/
typedef bool (*DeviceQueryMatchFunc)(const EUI48& address, const std::string& name, const DeviceQuery& q);
/**
* Returns {@code true} if the given {@code address} and/or {@code name}
* matches any of the BTDeviceRegistry::addToWaitForDevices() awaited devices.
* <p>
* Matching criteria and algorithm is defined by the given BTDeviceRegistry::DeviceQueryMatchFunc.
* </p>
* @see BTDeviceRegistry::isWaitingForDevice()
*/
bool isWaitingForDevice(const EUI48 &address, const std::string &name, DeviceQueryMatchFunc m) noexcept;
/**
* Returns {@code true} if the given {@code address} and/or {@code name}
* matches any of the BTDeviceRegistry::addToWaitForDevices() awaited devices.
* <p>
* Matching criteria is either the awaited device's BTDeviceRegistry::DeviceQuery::addressSub
* or BTDeviceRegistry::DeviceQuery::nameSub, whichever is set.
* </p>
* <p>
* Matching algorithm is a simple {@code contains} pattern match,
* i.e. the given {@code address} or {@code name} contains the corresponding BTDeviceRegistry::DeviceQuery element.
* </p>
* @see BTDeviceRegistry::isWaitingForDevice()
*/
inline bool isWaitingForDevice(const EUI48 &address, const std::string &name) noexcept {
return isWaitingForDevice(address, name, [](const EUI48& a, const std::string& n, const DeviceQuery& q)->bool {
return q.isEUI48Sub() ? a.contains(q.addressSub) : n.find(q.nameSub) != std::string::npos;
});
}
/**
* Returns {@code true} if all addToWaitForDevices() awaited devices
* have been addToProcessedDevices() processed.
* <p>
* Matching criteria and algorithm is defined by the given BTDeviceRegistry::DeviceQueryMatchFunc.
* </p>
* @see BTDeviceRegistry::areAllDevicesProcessed()
*/
bool areAllDevicesProcessed(DeviceQueryMatchFunc m) noexcept;
/**
* Returns {@code true} if all addToWaitForDevices() awaited devices
* have been addToProcessedDevices() processed.
* <p>
* Matching criteria is either the awaited device's BTDeviceRegistry::DeviceQuery::addressSub
* or BTDeviceRegistry::DeviceQuery::nameSub, whichever is set.
* </p>
* <p>
* Matching algorithm is a simple {@code contains} pattern match,
* i.e. the processed BTDeviceRegistry::DeviceID contains one element of BTDeviceRegistry::DeviceQuery.
* </p>
* @see BTDeviceRegistry::areAllDevicesProcessed()
*/
inline bool areAllDevicesProcessed() noexcept {
return areAllDevicesProcessed( [](const EUI48& a, const std::string& n, const DeviceQuery& q)->bool {
return q.isEUI48Sub() ? a.contains(q.addressSub) : n.find(q.nameSub) != std::string::npos;
});
}
}
} // namespace direct_bt
// injecting specialization of std::hash to namespace std of our types above
namespace std
{
template<> struct hash<direct_bt::BTDeviceRegistry::DeviceID> {
std::size_t operator()(direct_bt::BTDeviceRegistry::DeviceID const& a) const noexcept {
return a.hash_code();
}
};
}
#endif /* DBT_DEV_ACCOUNTING_HPP_ */
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