libopenms-dev 1.11.1-5 / usr / include / OpenMS / CHEMISTRY / ModificationsDB.h

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// $Maintainer: Stephan Aiche $
// $Authors: Andreas Bertsch $
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#ifndef OPENMS_CHEMISTRY_MODIFICATIONSDB_H
#define OPENMS_CHEMISTRY_MODIFICATIONSDB_H

#include <OpenMS/DATASTRUCTURES/Map.h>
#include <OpenMS/CHEMISTRY/ResidueModification.h>

#include <set>

namespace OpenMS
{
  // forward declarations
  class ResidueModification;
  class Residue;

  /** @ingroup Chemistry

          @brief database which holds all residue modifications from UniMod

          This singleton class serves as a storage of the available modifications
          represented by UniMod (www.unimod.org). The modifications are identified
          by there name and possibly other ids from UniMod or the PSI-MOD ontology.
          Modifications can have different specificities, e.g. they can occur only
          at the termini, anywhere or only at specific amino acids.

          The modifications are defined in share/OpenMS/CHEMISTRY/unimod.xml and
          in share/OpenMS/CHEMISTRY/PSI-MOD.obo. The unimod file can be directly
          downloaded from unimod.org and replaced if the modifications change.

          To add a new modification, not contained in UniMod, one should follow
          the way described at the unimod.org website and download the file then
          from unimod.org. The same can be done to add support for the modifications
          to search engines, e.g. Mascot.
  */
  class OPENMS_DLLAPI ModificationsDB
  {
public:

    inline static ModificationsDB * getInstance()
    {
      static ModificationsDB * db_ = 0;
      if (db_ == 0)
      {
        db_ = new ModificationsDB;
      }
      return db_;
    }

    /// returns the number of modifications read from the unimod.xml file
    Size getNumberOfModifications() const;

    /// returns the modification with the given index
    const ResidueModification & getModification(Size index) const;

    /// returns all modifications which have the given name as synonym
    void searchTerminalModifications(std::set<const ResidueModification *> & mods, const String & name, ResidueModification::Term_Specificity term_spec) const;

    /// returns all modification which have the given name as synonym and the given origin
    void searchModifications(std::set<const ResidueModification *> & mods, const String & orgin, const String & mod_name, ResidueModification::Term_Specificity term_spec) const;

    /// returns all modification which have the given name as synonym
    void searchModifications(std::set<const ResidueModification *> & mods, const String & mod_name, ResidueModification::Term_Specificity term_spec) const;

    /** @brief returns the modifications of the given name

            This can either be the PSI-MOD identifier or every other unique
            identifier which can be found in the PSI-MOD definitions file.

            To search for more than one modification searchModifications() can be used!

            @exception ElementNotFound is thrown if no or more than one element is found
    */
    const ResidueModification & getTerminalModification(const String & name, ResidueModification::Term_Specificity term_spec) const;

    /// returns the modification with the given name and given residue
    const ResidueModification & getModification(const String & residue_name, const String & mod_name, ResidueModification::Term_Specificity term_spec) const;

    const ResidueModification & getModification(const String & modification) const;

    /// returns the index of the modification in the mods_ vector; a unique name must be given
    Size findModificationIndex(const String & mod_name) const;

    /// query the modifications DB to get the terminal modifications with mass
    void getTerminalModificationsByDiffMonoMass(std::vector<String> & mods, DoubleReal mass, DoubleReal error, ResidueModification::Term_Specificity term_spec);

    /// query the modifications DB to get the modifications with mass, without any specific origin
    void getModificationsByDiffMonoMass(std::vector<String> & mods, DoubleReal mass, DoubleReal error = 0.0);

    /// query the modifications DB to get modifications with the given mass at the given residue
    void getModificationsByDiffMonoMass(std::vector<String> & mods, const String & residue, DoubleReal mass, DoubleReal error = 0.0);

    /// adds modifications from a given file in OBO format
    void readFromOBOFile(const String & filename);

    /// adds modifications from a given file in Unimod XML format
    void readFromUnimodXMLFile(const String & filename);

    /// get all modifications that can be used for identification searches
    void getAllSearchModifications(std::vector<String> & modifications);

protected:

    /// stores the modifications
    std::vector<ResidueModification *> mods_;

    /// stores the mappings of (unique) names to the modifications
    Map<String, std::set<const ResidueModification *> > modification_names_;


private:

    /** @name Constructors and Destructors
*/
    //@{
    /// default constructor
    ModificationsDB();

    ///copy constructor
    ModificationsDB(const ModificationsDB & residue_db);

    /// destructor
    virtual ~ModificationsDB();
    //@}

    /** @name Assignment
    */
    //@{
    /// assignment operator
    ModificationsDB & operator=(const ModificationsDB & aa);
    //@}
  };
}
#endif