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#ifndef DETECTOR_DESCRIPTION_CORE_DDNAME_H
#define DETECTOR_DESCRIPTION_CORE_DDNAME_H
#include <iosfwd>
#include <string>
#include <utility>
#include "FWCore/Utilities/interface/StdPairHasher.h"
#include <oneapi/tbb/concurrent_vector.h>
#include <oneapi/tbb/concurrent_unordered_map.h>
class DDCurrentNamespace;
//! DDName is used to identify DDD entities uniquely.
/** A DDName consists of a \a name and a \a namespace. Both are represented as std::string.
*/
class DDName {
public:
using id_type = int;
using key_type = std::pair<const std::string, std::string>;
using Registry = tbb::concurrent_unordered_map<key_type, id_type, edm::StdPairHasher>;
using IdToName = tbb::concurrent_vector<Registry::const_iterator>;
//! Constructs a DDName with name \a name and assigns \a name to the namespace \a ns.
DDName(const std::string& name, const std::string& ns);
//! Creates a DDName with \a name in the current namespace defined in the singleton DDCurrentNamespace
DDName(const std::string& name);
DDName(const char* name);
DDName(const char* name, const char* ns);
explicit DDName();
//! Returns the \a name
const std::string& name() const;
//! Returns the \a namespace
const std::string& ns() const;
/** Returns a string complete of the \a namespace and \a name separated by ":".
Most likely you want to use ns() and / or name() methods instead.
*/
const std::string fullname() const { return ns() + ":" + name(); }
id_type id() const { return id_; }
bool operator<(const DDName& rhs) const { return id_ < rhs.id_; }
bool operator==(const DDName& rhs) const { return id_ == rhs.id_; }
private:
id_type id_;
static Registry::const_iterator registerName(const std::pair<std::string, std::string>& s);
};
std::ostream& operator<<(std::ostream& os, const DDName& n);
#endif
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