UniqueIdInterface.h

Go to the documentation of this file.

// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2017.
//
// This software is released under a three-clause BSD license:
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//  * Neither the name of any author or any participating institution
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
// --------------------------------------------------------------------------
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
// INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg $
// $Authors: $
// --------------------------------------------------------------------------

#ifndef OPENMS_CONCEPT_UNIQUEIDINTERFACE_H
#define OPENMS_CONCEPT_UNIQUEIDINTERFACE_H

#include <OpenMS/CONCEPT/UniqueIdGenerator.h>
#include <OpenMS/DATASTRUCTURES/String.h>

namespace OpenMS
{

  class OPENMS_DLLAPI UniqueIdInterface
  {
public:

    enum
    {
      INVALID = 0
    };

    inline static bool
    isValid(UInt64 unique_id)
    {
      return unique_id != INVALID;
    }

    UniqueIdInterface() :
      unique_id_(UInt64(INVALID))
    {
      //do not use clearUniqueId(), as it will be slower and creates a warranted valgrind warning;
    }

    UniqueIdInterface(const UniqueIdInterface & rhs) :
      unique_id_(rhs.unique_id_)
    {
    }

    UniqueIdInterface &
    operator=(UniqueIdInterface const & rhs)
    {
      unique_id_ = rhs.unique_id_;
      return *this;
    }

    virtual ~UniqueIdInterface()
    {
    }

    bool
    operator==(UniqueIdInterface const & rhs) const
    {
      return unique_id_ == rhs.unique_id_;
    }

    UInt64
    getUniqueId() const
    {
      return unique_id_;
    }

    Size
    clearUniqueId()
    {
      if (hasValidUniqueId())
      {
        unique_id_ = 0;
        return 1;
      }
      else
        return 0;
    }

    void
    swap(UniqueIdInterface & from)
    {
      std::swap(unique_id_, from.unique_id_);
      return;
    }

    Size
    hasValidUniqueId() const
    {
      return isValid(unique_id_);
    }

    Size
    hasInvalidUniqueId() const
    {
      return !isValid(unique_id_);
    }

    Size
    setUniqueId()
    {
      unique_id_ = UniqueIdGenerator::getUniqueId();
      return 1;
    }

    Size
    ensureUniqueId()
    {
      if (!hasValidUniqueId())
      {
        unique_id_ = UniqueIdGenerator::getUniqueId();
        return 1;
      }
      else
        return 0;
    }

    void
    setUniqueId(UInt64 rhs)
    {
      unique_id_ = rhs;
    }

    void
    setUniqueId(const String & rhs);

protected:
    UInt64 unique_id_;

  };

} //namespace OpenMS

#endif // OPENMS_CONCEPT_UNIQUEIDINTERFACE_H