/*************** tabbson H Declares Source Code File (.H) **************/
/* Name: tabbson.h Version 1.1 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2020 - 2021 */
/* */
/* This file contains the BSON classes declares. */
/***********************************************************************/
#pragma once
#include "block.h"
#include "colblk.h"
#include "bson.h"
#include "tabjson.h"
typedef class BTUTIL* PBTUT;
typedef class BCUTIL* PBCUT;
typedef class BSONDEF* PBDEF;
typedef class TDBBSON* PBTDB;
typedef class BSONCOL* PBSCOL;
class TDBBSN;
DllExport PQRYRES BSONColumns(PGLOBAL, PCSZ, PCSZ, PTOS, bool);
/***********************************************************************/
/* Class used to get the columns of a mongo collection. */
/***********************************************************************/
class BSONDISC : public BLOCK {
public:
// Constructor
BSONDISC(PGLOBAL g, uint* lg);
// Functions
int GetColumns(PGLOBAL g, PCSZ db, PCSZ dsn, PTOS topt);
bool Find(PGLOBAL g, PBVAL jvp, PCSZ key, int j);
void AddColumn(PGLOBAL g);
// Members
JCOL jcol;
PJCL jcp, fjcp, pjcp;
//PVL vlp;
PBDEF tdp;
TDBBSN *tjnp;
PBTDB tjsp;
PBPR jpp;
PBVAL jsp;
PBPR row;
PBTUT bp;
PCSZ sep;
PCSZ strfy;
char colname[65], fmt[129], buf[16];
uint *length;
int i, n, bf, ncol, lvl, sz, limit;
bool all;
}; // end of BSONDISC
/***********************************************************************/
/* JSON table. */
/***********************************************************************/
class DllExport BSONDEF : public DOSDEF { /* Table description */
friend class TDBBSON;
friend class TDBBSN;
friend class TDBBCL;
friend class BSONDISC;
friend class BSONCOL;
#if defined(CMGO_SUPPORT)
friend class CMGFAM;
#endif // CMGO_SUPPORT
#if defined(JAVA_SUPPORT)
friend class JMGFAM;
#endif // JAVA_SUPPORT
public:
// Constructor
BSONDEF(void);
// Implementation
const char* GetType(void) override { return "BSON"; }
// Methods
bool DefineAM(PGLOBAL g, LPCSTR am, int poff) override;
PTDB GetTable(PGLOBAL g, MODE m) override;
protected:
// Members
PGLOBAL G; /* Bson utility memory */
JMODE Jmode; /* MODE_OBJECT by default */
PCSZ Objname; /* Name of first level object */
PCSZ Xcol; /* Name of expandable column */
int Limit; /* Limit of multiple values */
int Pretty; /* Depends on file structure */
int Base; /* The array index base */
bool Strict; /* Strict syntax checking */
char Sep; /* The Jpath separator */
const char* Uri; /* MongoDB connection URI */
PCSZ Collname; /* External collection name */
PSZ Options; /* Colist ; Pipe */
PSZ Filter; /* Filter */
PSZ Driver; /* MongoDB Driver (C or JAVA) */
bool Pipe; /* True if Colist is a pipeline */
int Version; /* Driver version */
PSZ Wrapname; /* MongoDB java wrapper name */
}; // end of BSONDEF
/* -------------------------- BTUTIL class --------------------------- */
/***********************************************************************/
/* Handles all BJSON actions for a BSON table. */
/***********************************************************************/
class BTUTIL : public BDOC {
public:
// Constructor
BTUTIL(PGLOBAL G, TDBBSN* tp) : BDOC(G) { Tp = tp; }
// Utility functions
PBVAL FindRow(PGLOBAL g);
PBVAL ParseLine(PGLOBAL g, int prty, bool cma);
PBVAL MakeTopTree(PGLOBAL g, int type);
PSZ SerialVal(PGLOBAL g, PBVAL top, int pretty);
protected:
// Members
TDBBSN* Tp;
}; // end of class BTUTIL
/* -------------------------- BCUTIL class --------------------------- */
/***********************************************************************/
/* Handles all BJSON actions for a BSON columns. */
/***********************************************************************/
class BCUTIL : public BTUTIL {
public:
// Constructor
BCUTIL(PGLOBAL G, PBSCOL cp, TDBBSN* tp) : BTUTIL(G, tp)
{ Cp = cp; Jb = false; }
// Utility functions
void SetJsonValue(PGLOBAL g, PVAL vp, PBVAL jvp);
PBVAL MakeBson(PGLOBAL g, PBVAL jsp, int n);
PBVAL GetRowValue(PGLOBAL g, PBVAL row, int i);
PVAL GetColumnValue(PGLOBAL g, PBVAL row, int i);
PVAL ExpandArray(PGLOBAL g, PBVAL arp, int n);
PVAL CalculateArray(PGLOBAL g, PBVAL arp, int n);
PBVAL GetRow(PGLOBAL g);
protected:
// Member
PBSCOL Cp;
bool Jb;
}; // end of class BCUTIL
/* -------------------------- TDBBSN class --------------------------- */
/***********************************************************************/
/* This is the BSN Access Method class declaration. */
/* The table is a DOS file, each record being a JSON object. */
/***********************************************************************/
class DllExport TDBBSN : public TDBDOS {
friend class BSONCOL;
friend class BSONDEF;
friend class BTUTIL;
friend class BCUTIL;
friend class BSONDISC;
#if defined(CMGO_SUPPORT)
friend class CMGFAM;
#endif // CMGO_SUPPORT
#if defined(JAVA_SUPPORT)
friend class JMGFAM;
#endif // JAVA_SUPPORT
public:
// Constructor
TDBBSN(PGLOBAL g, PBDEF tdp, PTXF txfp);
TDBBSN(TDBBSN* tdbp);
// Implementation
AMT GetAmType(void) override { return TYPE_AM_JSN; }
bool SkipHeader(PGLOBAL g) override;
PTDB Duplicate(PGLOBAL g) override { return (PTDB)new(g) TDBBSN(this); }
PBVAL GetRow(void) { return Row; }
// Methods
PTDB Clone(PTABS t) override;
PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n) override;
PCOL InsertSpecialColumn(PCOL colp) override;
int RowNumber(PGLOBAL g, bool b = FALSE) override {return (b) ? M : N;}
bool CanBeFiltered(void) override
{return Txfp->GetAmType() == TYPE_AM_MGO || !Xcol;}
// Database routines
int Cardinality(PGLOBAL g) override;
int GetMaxSize(PGLOBAL g) override;
bool OpenDB(PGLOBAL g) override;
int ReadDB(PGLOBAL g) override;
bool PrepareWriting(PGLOBAL g) override;
int WriteDB(PGLOBAL g) override;
void CloseDB(PGLOBAL g) override;
// Specific routine
int EstimatedLength(void) override;
protected:
PBVAL FindRow(PGLOBAL g);
//int MakeTopTree(PGLOBAL g, PBVAL jsp);
// Members
PBTUT Bp; // The BSUTIL handling class
PBVAL Top; // The top JSON tree
PBVAL Row; // The current row
PBSCOL Colp; // The multiple column
JMODE Jmode; // MODE_OBJECT by default
PCSZ Objname; // The table object name
PCSZ Xcol; // Name of expandable column
int Fpos; // The current row index
int N; // The current Rownum
int M; // Index of multiple value
int Limit; // Limit of multiple values
int Pretty; // Depends on file structure
int NextSame; // Same next row
int SameRow; // Same row nb
int Xval; // Index of expandable array
int B; // Array index base
char Sep; // The Jpath separator
bool Strict; // Strict syntax checking
bool Comma; // Row has final comma
}; // end of class TDBBSN
/* -------------------------- BSONCOL class -------------------------- */
/***********************************************************************/
/* Class BSONCOL: JSON access method column descriptor. */
/***********************************************************************/
class DllExport BSONCOL : public DOSCOL {
friend class TDBBSN;
friend class TDBBSON;
friend class BCUTIL;
#if defined(CMGO_SUPPORT)
friend class CMGFAM;
#endif // CMGO_SUPPORT
#if defined(JAVA_SUPPORT)
friend class JMGFAM;
#endif // JAVA_SUPPORT
public:
// Constructors
BSONCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i);
BSONCOL(BSONCOL* colp, PTDB tdbp); // Constructor used in copy process
// Implementation
int GetAmType(void) override { return Tbp->GetAmType(); }
bool Stringify(void) override { return Sgfy; }
// Methods
bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check) override;
bool ParseJpath(PGLOBAL g);
PSZ GetJpath(PGLOBAL g, bool proj) override;
void ReadColumn(PGLOBAL g) override;
void WriteColumn(PGLOBAL g) override;
protected:
bool CheckExpand(PGLOBAL g, int i, PSZ nm, bool b);
bool SetArrayOptions(PGLOBAL g, char* p, int i, PSZ nm);
// Default constructor not to be used
BSONCOL(void) = default;
// Members
TDBBSN *Tbp; // To the JSN table block
PBCUT Cp; // To the BCUTIL handling class
PVAL MulVal; // To value used by multiple column
char *Jpath; // The json path
JNODE *Nodes; // The intermediate objects
int Nod; // The number of intermediate objects
int Xnod; // Index of multiple values
char Sep; // The Jpath separator
bool Xpd; // True for expandable column
bool Parsed; // True when parsed
bool Warned; // True when warning issued
bool Sgfy; // True if stringified
}; // end of class BSONCOL
/* -------------------------- TDBBSON class -------------------------- */
/***********************************************************************/
/* This is the JSON Access Method class declaration. */
/***********************************************************************/
class DllExport TDBBSON : public TDBBSN {
friend class BSONDEF;
friend class BSONCOL;
public:
// Constructor
TDBBSON(PGLOBAL g, PBDEF tdp, PTXF txfp);
TDBBSON(PBTDB tdbp);
// Implementation
AMT GetAmType(void) override { return TYPE_AM_JSON; }
PTDB Duplicate(PGLOBAL g) override { return (PTDB)new(g) TDBBSON(this); }
PBVAL GetDoc(void) { return Docp; }
// Methods
PTDB Clone(PTABS t) override;
// Database routines
int Cardinality(PGLOBAL g) override;
int GetMaxSize(PGLOBAL g) override;
void ResetSize(void) override;
int GetProgCur(void) override { return N; }
int GetRecpos(void) override;
bool SetRecpos(PGLOBAL g, int recpos) override;
bool OpenDB(PGLOBAL g) override;
int ReadDB(PGLOBAL g) override;
bool PrepareWriting(PGLOBAL g) override { return false; }
int WriteDB(PGLOBAL g) override;
int DeleteDB(PGLOBAL g, int irc) override;
void CloseDB(PGLOBAL g) override;
int MakeDocument(PGLOBAL g);
// Optimization routines
int MakeIndex(PGLOBAL g, PIXDEF pxdf, bool add) override;
protected:
int MakeNewDoc(PGLOBAL g);
// Members
PBVAL Docp; // The document array
PBVAL Docrow; // Document row
int Multiple; // 0: No 1: DIR 2: Section 3: filelist
int Docsize; // The document size
bool Done; // True when document parsing is done
bool Changed; // After Update, Insert or Delete
}; // end of class TDBBSON
/***********************************************************************/
/* This is the class declaration for the JSON catalog table. */
/***********************************************************************/
class DllExport TDBBCL : public TDBCAT {
public:
// Constructor
TDBBCL(PBDEF tdp);
protected:
// Specific routines
PQRYRES GetResult(PGLOBAL g) override;
// Members
PTOS Topt;
PCSZ Db;
PCSZ Dsn;
}; // end of class TDBBCL