MessageSender.h

Go to the documentation of this file.

#ifndef FWCore_MessageLogger_MessageSender_h
#define FWCore_MessageLogger_MessageSender_h

#include "FWCore/MessageLogger/interface/ELstring.h"
#include "FWCore/MessageLogger/interface/ELseverityLevel.h"
#include "FWCore/MessageLogger/interface/ErrorObj.h"

#include <memory>

#include <map>

// Change log
//
//  1  mf 8/25/08   error summary information for LoggedErrorsSummary()
//
//  2  mf 6/22/09   add severity to LoggedErrorsSummary by using
//          ErrorSummaryEntry as map key
//
//  3 wmtan 6/22/11     Hold the ErrorObj with a shared pointer with a custom deleter.
//                      The custom deleter takes over the function of the message sending from the MessageSender destructor.
//                      This allows MessageSender to be copyable, which fixes the clang compilation errors.

namespace edm {

  class MessageSender {
    struct ErrorObjDeleter {
      ErrorObjDeleter() {}
      void operator()(ErrorObj* errorObjPtr);
    };

  public:
    // ---  birth/death:
    MessageSender() : errorobj_p() {}
    MessageSender(ELseverityLevel const& sev, ELstring const& id, bool verbatim = false, bool suppressed = false);
    ~MessageSender();

    // ---  stream out the next part of a message:
    template <class T>
    MessageSender& operator<<(T const& t) {
      if (valid())
        (*errorobj_p) << t;
      return *this;
    }

    bool valid() { return errorobj_p != nullptr; }

  private:
    // data:
    std::shared_ptr<ErrorObj> errorobj_p;

  };  // MessageSender

}  // namespace edm

#endif  // FWCore_MessageLogger_MessageSender_h