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#ifndef Subsystem_Package_TestHandle_h
#define Subsystem_Package_TestHandle_h
// -*- C++ -*-
//
// Package: Subsystem/Package
// Class : TestHandle
//
/**\class TestHandle TestHandle.h "TestHandle.h"
Description: [one line class summary]
Usage:
<usage>
*/
//
// Original Author: root
// Created: Thu, 03 May 2018 15:50:05 GMT
//
// system include files
#include <memory>
// user include files
#include "DataFormats/Common/interface/BasicHandle.h"
#include "FWCore/Utilities/interface/Exception.h"
// forward declarations
namespace edm {
namespace test {
template <typename T>
class TestHandle {
public:
explicit TestHandle(T const* product) : product_{product} {}
explicit TestHandle(std::shared_ptr<HandleExceptionFactory const> iFailed)
: product_{nullptr}, whyFailedFactory_{std::move(iFailed)} {}
operator bool() { return product_ != nullptr; }
bool isValid() const { return product_ != nullptr; }
T const* product() const { return productStorage(); }
T const* operator->() const { return product(); }
T const& operator*() const { return *product(); }
private:
T const* productStorage() const {
if (product_) {
return product_;
}
throw *(whyFailedFactory_->make());
}
T const* product_;
std::shared_ptr<HandleExceptionFactory const> whyFailedFactory_;
};
} // namespace test
} // namespace edm
#endif
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