dcmqrdb/include/dcmtk/dcmqrdb/dcmqrdbi.h

/*
 *
 *  Copyright (C) 1993-2010, OFFIS e.V.
 *  All rights reserved.  See COPYRIGHT file for details.
 *
 *  This software and supporting documentation were developed by
 *
 *    OFFIS e.V.
 *    R&D Division Health
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *
 *  Module:  dcmqrdb
 *
 *  Author:  Andrew Hewett, Marco Eichelberg
 *
 *  Purpose: class DcmQueryRetrieveIndexDatabaseHandle
 *
 *  Last Update:      $Author: joergr $
 *  Update Date:      $Date: 2010-10-14 13:16:41 $
 *  CVS/RCS Revision: $Revision: 1.8 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef DCMQRDBI_H
#define DCMQRDBI_H

#include "dcmtk/config/osconfig.h"     /* make sure OS specific configuration is included first */
#include "dcmtk/dcmqrdb/dcmqrdba.h"    /* for class DcmQueryRetrieveDatabaseHandle */

#include "dcmtk/dcmnet/dicom.h"
#include "dcmtk/dcmnet/dimse.h"
#include "dcmtk/ofstd/offname.h"

struct StudyDescRecord;
struct DB_Private_Handle;
struct DB_SmallDcmElmt;
struct IdxRecord;
struct DB_ElementList;
class DcmQueryRetrieveConfig;

#define DBINDEXFILE "index.dat"

#ifndef _WIN32
/* we lock image files on all platforms except Win32 where it does not work
 * due to the different semantics of LockFile/LockFileEx compared to flock.
 */
#define LOCK_IMAGE_FILES
#endif

enum DB_LEVEL
{
  PATIENT_LEVEL,
  STUDY_LEVEL,
  SERIE_LEVEL,
  IMAGE_LEVEL
};

enum DVIFhierarchyStatus
{
  DVIF_objectIsNotNew,
  DVIF_objectIsNew,
  DVIF_objectContainsNewSubobjects
};

#define DB_UpperMaxStudies              500

#define DB_UpperMaxBytesPerStudy        0x40000000L


class DcmQueryRetrieveIndexDatabaseHandle: public DcmQueryRetrieveDatabaseHandle
{
public:

  DcmQueryRetrieveIndexDatabaseHandle(
    const char *storageArea,
    long maxStudiesPerStorageArea,
    long maxBytesPerStudy,
    OFCondition& result);
  
   ~DcmQueryRetrieveIndexDatabaseHandle();
  
  void setIdentifierChecking(OFBool checkFind, OFBool checkMove);
  
  OFCondition makeNewStoreFileName(
      const char *SOPClassUID,
      const char *SOPInstanceUID,
      char *newImageFileName);
  
  OFCondition storeRequest(
      const char *SOPClassUID,
      const char *SOPInstanceUID,
      const char *imageFileName,
      DcmQueryRetrieveDatabaseStatus  *status,
      OFBool     isNew = OFTrue );
  
  OFCondition startFindRequest(
      const char *SOPClassUID,
      DcmDataset *findRequestIdentifiers,
      DcmQueryRetrieveDatabaseStatus *status);     
                
  OFCondition nextFindResponse(
      DcmDataset **findResponseIdentifiers,
      DcmQueryRetrieveDatabaseStatus *status);
   
  OFCondition cancelFindRequest(DcmQueryRetrieveDatabaseStatus *status);
          
  OFCondition startMoveRequest(
      const char *SOPClassUID,
      DcmDataset *moveRequestIdentifiers,
      DcmQueryRetrieveDatabaseStatus *status);
  
  OFCondition nextMoveResponse(
      char *SOPClassUID,
      char *SOPInstanceUID,
      char *imageFileName,
      unsigned short *numberOfRemainingSubOperations,
      DcmQueryRetrieveDatabaseStatus *status);
  
  OFCondition cancelMoveRequest(DcmQueryRetrieveDatabaseStatus *status);
  
  OFCondition pruneInvalidRecords();

  // methods not inherited from the base class

  void enableQuotaSystem(OFBool enable);

  static void printIndexFile (char *storeArea);
    
  OFCondition deleteImageFile(char* imgFile);

  OFCondition DB_lock(OFBool exclusive);

  OFCondition DB_unlock();

  OFCondition DB_IdxGetNext(int *idx, IdxRecord *idxRec);

  OFCondition DB_IdxInitLoop(int *idx);

  OFCondition DB_IdxRead(int idx, IdxRecord *idxRec);

  OFCondition DB_GetStudyDesc(StudyDescRecord *pStudyDesc);

  OFCondition DB_StudyDescChange(StudyDescRecord *pStudyDesc);

  OFCondition DB_IdxRemove(int idx);

  OFCondition instanceReviewed(int idx);

  const char *getStorageArea() const;

  const char *getIndexFilename() const;

      
private:

  OFCondition removeDuplicateImage(
      const char *SOPInstanceUID, const char *StudyInstanceUID,
      StudyDescRecord *pStudyDesc, const char *newImageFileName);
  int deleteOldestStudy(StudyDescRecord *pStudyDesc);
  OFCondition deleteOldestImages(StudyDescRecord *pStudyDesc, int StudyNum, char *StudyUID, long RequiredSize);
  int matchDate (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  int matchTime (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  int matchUID (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  int matchStrings (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  int matchOther (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  int dbmatch (DB_SmallDcmElmt *mod, DB_SmallDcmElmt *elt);
  void makeResponseList(DB_Private_Handle *phandle, IdxRecord *idxRec);
  int matchStudyUIDInStudyDesc (StudyDescRecord *pStudyDesc, char *StudyUID, int maxStudiesAllowed);
  OFCondition checkupinStudyDesc(StudyDescRecord *pStudyDesc, char *StudyUID, long imageSize);

  OFCondition hierarchicalCompare (
      DB_Private_Handle *phandle,
      IdxRecord         *idxRec,
      DB_LEVEL          level,
      DB_LEVEL          infLevel,
      int               *match);

  OFCondition testFindRequestList (
      DB_ElementList  *findRequestList,
      DB_LEVEL        queryLevel,
      DB_LEVEL        infLevel,
      DB_LEVEL        lowestLevel);

  OFCondition testMoveRequestList (
      DB_ElementList  *findRequestList,
      DB_LEVEL        queryLevel,
      DB_LEVEL        infLevel,
      DB_LEVEL        lowestLevel);

  DB_Private_Handle *handle_;

  OFBool quotaSystemEnabled;

  OFBool doCheckFindIdentifier;

  OFBool doCheckMoveIdentifier;

  OFFilenameCreator fnamecreator;

};


class DcmQueryRetrieveIndexDatabaseHandleFactory: public DcmQueryRetrieveDatabaseHandleFactory
{
public:

  DcmQueryRetrieveIndexDatabaseHandleFactory(const DcmQueryRetrieveConfig *config);

  virtual ~DcmQueryRetrieveIndexDatabaseHandleFactory();

  virtual DcmQueryRetrieveDatabaseHandle *createDBHandle(
    const char *callingAETitle, 
    const char *calledAETitle,
    OFCondition& result) const;

private:

  const DcmQueryRetrieveConfig *config_;
};

#endif

/*
 * CVS Log
 * $Log: dcmqrdbi.h,v $
 * Revision 1.8  2010-10-14 13:16:41  joergr
 * Updated copyright header. Added reference to COPYRIGHT file.
 *
 * Revision 1.7  2009-11-24 10:10:42  uli
 * Switched to logging mechanism provided by the "new" oflog module.
 *
 * Revision 1.6  2009-08-21 09:50:07  joergr
 * Replaced tabs by spaces and updated copyright date.
 *
 * Revision 1.5  2008-04-15 15:43:37  meichel
 * Fixed endless recursion bug in the index file handling code when
 *   the index file does not exist
 *
 * Revision 1.4  2005/12/08 16:04:22  meichel
 * Changed include path schema for all DCMTK header files
 *
 * Revision 1.3  2005/04/22 15:36:34  meichel
 * Passing calling aetitle to DcmQueryRetrieveDatabaseHandleFactory::createDBHandle
 *   to allow configuration retrieval based on calling aetitle.
 *
 * Revision 1.2  2005/04/04 10:04:45  meichel
 * Added public declarations for index file functions that are
 *   used from module dcmpstat
 *
 * Revision 1.1  2005/03/30 13:34:50  meichel
 * Initial release of module dcmqrdb that will replace module imagectn.
 *   It provides a clear interface between the Q/R DICOM front-end and the
 *   database back-end. The imagectn code has been re-factored into a minimal
 *   class structure.
 *
 *
 */

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