wldsfs.h

/*
 *
 *  Copyright (C) 1996-2005, OFFIS
 *
 *  This software and supporting documentation were developed by
 *
 *    Kuratorium OFFIS e.V.
 *    Healthcare Information and Communication Systems
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
 *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
 *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
 *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
 *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
 *
 *  Module:  dcmwlm
 *
 *  Author:  Thomas Wilkens
 *
 *  Purpose: Class for connecting to a file-based data source.
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2005/12/08 16:05:41 $
 *  Source File:      $Source: /share/dicom/cvs-depot/dcmtk/dcmwlm/include/dcmtk/dcmwlm/wldsfs.h,v $
 *  CVS/RCS Revision: $Revision: 1.15 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef WlmDataSourceFileSystem_h
#define WlmDataSourceFileSystem_h

#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmwlm/wlds.h"

class WlmFileSystemInteractionManager;
class DcmDataset;
class OFCondition;
class DcmElement;
class DcmItem;

class WlmDataSourceFileSystem : public WlmDataSource
{
  protected:
    WlmFileSystemInteractionManager *fileSystemInteractionManager;
    char *dfPath;
    OFBool enableRejectionOfIncompleteWlFiles;
    int handleToReadLockFile;

    OFBool SetReadlock();

    OFBool ReleaseReadlock();

    void HandleNonSequenceElementInResultDataset( DcmElement *element, unsigned long idx );

    void HandleSequenceElementInResultDataset( DcmElement *element, unsigned long idx );

    WlmDataSourceFileSystem( const WlmDataSourceFileSystem &Src );

    WlmDataSourceFileSystem &operator=( const WlmDataSourceFileSystem &Src );


  public:
    WlmDataSourceFileSystem();

    ~WlmDataSourceFileSystem();

    OFCondition ConnectToDataSource();

    OFCondition DisconnectFromDataSource();

    void SetDfPath( const char *value );

    void SetEnableRejectionOfIncompleteWlFiles( OFBool value );

    OFBool IsCalledApplicationEntityTitleSupported();

    void HandleExistentButEmptyDescriptionAndCodeSequenceAttributes( DcmItem *dataset, const DcmTagKey &descriptionTagKey, const DcmTagKey &codeSequenceTagKey );

    void HandleExistentButEmptyReferencedStudyOrPatientSequenceAttributes( DcmDataset *dataset, const DcmTagKey &sequenceTagKey );

    WlmDataSourceStatusType StartFindRequest( DcmDataset &findRequestIdentifiers );

    DcmDataset *NextFindResponse( WlmDataSourceStatusType &rStatus );
};

#endif

/*
** CVS Log
** $Log: wldsfs.h,v $
** Revision 1.15  2005/12/08 16:05:41  meichel
** Changed include path schema for all DCMTK header files
**
** Revision 1.14  2005/05/04 11:33:17  wilkens
** Modified handling of the attributes ScheduledProcedureStepDescription/
** ScheduledProtocolCodeSequence and RequestedProcedureDescription/
** RequestedProcedureCodeSequence in wlmscpfs: in case one of the two attributes
** does not contain any information in a C-Find RSP message which is about to be
** sent to an SCU, the empty attribute will be removed from the C-Find RSP message
** before the message is sent, in order not to send an invalid RSP message.
** Added two command line options --enable-file-reject (default) and
** --disable-file-reject to wlmscpfs: these options can be used to enable or
** disable a file rejection mechanism which makes sure only complete worklist files
** will be used during the matching process. A worklist file is considered to be
** complete if it contains all necessary type 1 information which the SCP might
** have to return to an SCU in a C-Find response message.
**
** Revision 1.13  2004/05/26 10:36:53  meichel
** Fixed minor bug in worklist server regarding failed read locks.
**
** Revision 1.12  2004/01/07 08:32:28  wilkens
** Added new sequence type return key attributes to wlmscpfs. Fixed bug that for
** equally named attributes in sequences always the same value will be returned.
** Added functionality that also more than one item will be returned in sequence
** type return key attributes.
**
** Revision 1.11  2003/08/21 13:38:55  wilkens
** Moved declaration and initialization of member variables matchingDatasets and
** NumOfMatchingDatasets to base class.
**
** Revision 1.10  2003/07/02 09:17:55  wilkens
** Updated documentation to get rid of doxygen warnings.
**
** Revision 1.9  2002/12/16 11:08:34  wilkens
** Added missing #include "osconfig.h" to certain files.
**
** Revision 1.8  2002/12/09 13:40:49  joergr
** Renamed parameter to avoid name clash with global function index().
**
** Revision 1.7  2002/08/12 10:56:08  wilkens
** Made some modifications in in order to be able to create a new application
** which contains both wlmscpdb and ppsscpdb and another application which
** contains both wlmscpfs and ppsscpfs.
**
** Revision 1.6  2002/08/05 09:09:57  wilkens
** Modfified the project's structure in order to be able to create a new
** application which contains both wlmscpdb and ppsscpdb.
**
** Revision 1.4  2002/07/17 13:10:17  wilkens
** Corrected some minor logical errors in the wlmscpdb sources and completely
** updated the wlmscpfs so that it does not use the original wlistctn sources
** any more but standard wlm sources which are now used by all three variants
** of wlmscps.
**
** Revision 1.3  2002/06/10 11:24:54  wilkens
** Made some corrections to keep gcc 2.95.3 quiet.
**
** Revision 1.2  2002/04/18 14:19:53  wilkens
** Modified Makefiles. Updated latest changes again. These are the latest
** sources. Added configure file.
**
** Revision 1.3  2002/01/08 17:45:34  joergr
** Reformatted source files (replaced Windows newlines by Unix ones, replaced
** tabulator characters by spaces, etc.)
**
** Revision 1.2  2002/01/08 16:47:53  joergr
** Added preliminary database support using OTL interface library (modified by
** MC/JR on 2001-12-21).
**
** Revision 1.1  2002/01/08 16:30:59  joergr
** Added new module "dcmwlm" developed by Thomas Wilkens (initial release for
** Windows, dated 2001-12-20).
**
**
*/

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