Add *Property methods to replace *Value methods, simplify options helper

This commit is contained in:
Alexey Rybalchenko
2019-05-14 14:43:53 +02:00
committed by Dennis Klein
parent 5646d531f3
commit fe241fe9ee
4 changed files with 200 additions and 262 deletions

View File

@@ -24,6 +24,8 @@
#include <mutex>
#include <regex>
#include <sstream>
#include <typeindex>
#include <stdexcept>
namespace fair
{
@@ -33,6 +35,13 @@ namespace mq
struct PropertyChange : Event<std::string> {};
struct PropertyChangeAsString : Event<std::string> {};
struct ValInfo
{
std::string value;
std::string type;
std::string origin;
};
} /* namespace mq */
} /* namespace fair */
@@ -45,6 +54,8 @@ class FairMQProgOptions
FairMQProgOptions();
virtual ~FairMQProgOptions();
struct PropertyNotFoundException : std::runtime_error { using std::runtime_error::runtime_error; };
int ParseAll(const std::vector<std::string>& cmdLineArgs, bool allowUnregistered);
// parse command line.
// default parser for the mq-configuration file (JSON) is called if command line key mq-config is called
@@ -52,80 +63,36 @@ class FairMQProgOptions
FairMQChannelMap GetFairMQMap() const;
std::unordered_map<std::string, int> GetChannelInfo() const;
template<typename T>
int SetValue(const std::string& key, T val)
{
std::unique_lock<std::mutex> lock(fMtx);
// update variable map
UpdateVarMap<typename std::decay<T>::type>(key, val);
if (key == "channel-config") {
ParseChannelsFromCmdLine();
} else if (fChannelKeyMap.count(key)) {
UpdateChannelValue(fChannelKeyMap.at(key).channel, fChannelKeyMap.at(key).index, fChannelKeyMap.at(key).member, val);
}
lock.unlock();
//if (std::is_same<T, int>::value || std::is_same<T, std::string>::value)//if one wants to restrict type
fEvents.Emit<fair::mq::PropertyChange, typename std::decay<T>::type>(key, val);
fEvents.Emit<fair::mq::PropertyChangeAsString, std::string>(key, GetStringValue(key));
return 0;
}
template <typename T>
void Subscribe(const std::string& subscriber, std::function<void(typename fair::mq::PropertyChange::KeyType, T)> func)
{
std::lock_guard<std::mutex> lock(fMtx);
static_assert(!std::is_same<T,const char*>::value || !std::is_same<T, char*>::value,
"In template member FairMQProgOptions::Subscribe<T>(key,Lambda) the types const char* or char* for the calback signatures are not supported.");
fEvents.Subscribe<fair::mq::PropertyChange, T>(subscriber, func);
}
template <typename T>
void Unsubscribe(const std::string& subscriber)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Unsubscribe<fair::mq::PropertyChange, T>(subscriber);
}
void SubscribeAsString(const std::string& subscriber, std::function<void(typename fair::mq::PropertyChange::KeyType, std::string)> func)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Subscribe<fair::mq::PropertyChangeAsString, std::string>(subscriber, func);
}
void UnsubscribeAsString(const std::string& subscriber)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Unsubscribe<fair::mq::PropertyChangeAsString, std::string>(subscriber);
}
std::vector<std::string> GetPropertyKeys() const;
// get value corresponding to the key
template<typename T>
T GetValue(const std::string& key) const
T GetProperty(const std::string& key) const
{
std::lock_guard<std::mutex> lock(fMtx);
T val = T();
if (fVarMap.count(key)) {
val = fVarMap[key].as<T>();
} else {
LOG(warn) << "Config has no key: " << key << ". Returning default constructed object.";
return fVarMap[key].as<T>();
}
return val;
throw PropertyNotFoundException(fair::mq::tools::ToString("Config has no key: ", key));
}
template<typename T>
T GetProperty(const std::string& key, const T& ifNotFound) const
{
std::lock_guard<std::mutex> lock(fMtx);
if (fVarMap.count(key)) {
return fVarMap[key].as<T>();
}
return ifNotFound;
}
template<typename T>
T GetValue(const std::string& key) const // TODO: deprecate this
{
return GetProperty<T>(key);
}
std::map<std::string, boost::any> GetProperties(const std::string& q)
@@ -145,6 +112,64 @@ class FairMQProgOptions
// Given a key, convert the variable value to string
std::string GetStringValue(const std::string& key);
template<typename T>
void SetProperty(const std::string& key, T val)
{
std::unique_lock<std::mutex> lock(fMtx);
// update variable map
UpdateVarMap<typename std::decay<T>::type>(key, val);
if (key == "channel-config") {
ParseChannelsFromCmdLine();
} else if (fChannelKeyMap.count(key)) {
UpdateChannelValue(fChannelKeyMap.at(key).channel, fChannelKeyMap.at(key).index, fChannelKeyMap.at(key).member, val);
}
lock.unlock();
//if (std::is_same<T, int>::value || std::is_same<T, std::string>::value)//if one wants to restrict type
fEvents.Emit<fair::mq::PropertyChange, typename std::decay<T>::type>(key, val);
fEvents.Emit<fair::mq::PropertyChangeAsString, std::string>(key, GetStringValue(key));
}
template<typename T>
int SetValue(const std::string& key, T val) // TODO: deprecate this
{
SetProperty(key, val);
return 0;
}
template <typename T>
void Subscribe(const std::string& subscriber, std::function<void(typename fair::mq::PropertyChange::KeyType, T)> func)
{
std::lock_guard<std::mutex> lock(fMtx);
static_assert(!std::is_same<T,const char*>::value || !std::is_same<T, char*>::value,
"In template member FairMQProgOptions::Subscribe<T>(key,Lambda) the types const char* or char* for the calback signatures are not supported.");
fEvents.Subscribe<fair::mq::PropertyChange, T>(subscriber, func);
}
template <typename T>
void Unsubscribe(const std::string& subscriber)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Unsubscribe<fair::mq::PropertyChange, T>(subscriber);
}
void SubscribeAsString(const std::string& subscriber, std::function<void(typename fair::mq::PropertyChange::KeyType, std::string)> func)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Subscribe<fair::mq::PropertyChangeAsString, std::string>(subscriber, func);
}
void UnsubscribeAsString(const std::string& subscriber)
{
std::lock_guard<std::mutex> lock(fMtx);
fEvents.Unsubscribe<fair::mq::PropertyChangeAsString, std::string>(subscriber);
}
int Count(const std::string& key) const;
// add options_description
@@ -159,6 +184,8 @@ class FairMQProgOptions
fFairMQChannelMap[channelName].push_back(channel);
}
static std::unordered_map<std::type_index, std::pair<std::string, std::string>(*)(const boost::any&)> fValInfos;
private:
struct ChannelKey
{