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db0c28eff8
Find and fix missing virtual override markings. Updates cmake maintainer flags to include -Wsuggest-override and -Winconsistent-missing-override.
323 lines
12 KiB
C++
323 lines
12 KiB
C++
/*************** tabjson H Declares Source Code File (.H) **************/
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/* Name: tabjson.h Version 1.3 */
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/* */
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/* (C) Copyright to the author Olivier BERTRAND 2014 - 2021 */
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/* */
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/* This file contains the JSON classes declares. */
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/***********************************************************************/
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#pragma once
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//#include "osutil.h" // Unuseful and bad for OEM
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#include "block.h"
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#include "colblk.h"
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#include "json.h"
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enum JMODE {MODE_OBJECT, MODE_ARRAY, MODE_VALUE};
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typedef class JSONDEF *PJDEF;
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typedef class TDBJSON *PJTDB;
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typedef class JSONCOL *PJCOL;
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class TDBJSN;
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DllExport PQRYRES JSONColumns(PGLOBAL, PCSZ, PCSZ, PTOS, bool);
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/***********************************************************************/
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/* The JSON tree node. Can be an Object or an Array. */
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/***********************************************************************/
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typedef struct _jnode {
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PSZ Key; // The key used for object
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OPVAL Op; // Operator used for this node
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PVAL CncVal; // To cont value used for OP_CNC
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PVAL Valp; // The internal array VALUE
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int Rank; // The rank in array
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int Rx; // Read row number
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int Nx; // Next to read row number
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} JNODE, *PJNODE;
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typedef struct _jncol {
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struct _jncol *Next;
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char *Name;
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char *Fmt;
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JTYP Type;
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int Len;
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int Scale;
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bool Cbn;
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bool Found;
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} JCOL, *PJCL;
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/***********************************************************************/
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/* Class used to get the columns of a mongo collection. */
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/***********************************************************************/
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class JSONDISC : public BLOCK {
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public:
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// Constructor
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JSONDISC(PGLOBAL g, uint *lg);
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// Functions
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int GetColumns(PGLOBAL g, PCSZ db, PCSZ dsn, PTOS topt);
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bool Find(PGLOBAL g, PJVAL jvp, PCSZ key, int j);
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void AddColumn(PGLOBAL g);
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// Members
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JCOL jcol;
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PJCL jcp, fjcp, pjcp;
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//PVL vlp;
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PJDEF tdp;
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TDBJSN *tjnp;
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PJTDB tjsp;
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PJPR jpp;
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PJSON jsp;
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PJOB row;
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PCSZ sep;
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PCSZ strfy;
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char colname[65], fmt[129], buf[16];
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uint *length;
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int i, n, bf, ncol, lvl, sz, limit;
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bool all;
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}; // end of JSONDISC
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/***********************************************************************/
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/* JSON table. */
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/***********************************************************************/
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class DllExport JSONDEF : public DOSDEF { /* Table description */
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friend class TDBJSON;
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friend class TDBJSN;
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friend class TDBJCL;
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friend class JSONDISC;
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#if defined(CMGO_SUPPORT)
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friend class CMGFAM;
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#endif // CMGO_SUPPORT
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#if defined(JAVA_SUPPORT)
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friend class JMGFAM;
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#endif // JAVA_SUPPORT
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public:
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// Constructor
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JSONDEF(void);
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// Implementation
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const char *GetType(void) override {return "JSON";}
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// Methods
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bool DefineAM(PGLOBAL g, LPCSTR am, int poff) override;
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PTDB GetTable(PGLOBAL g, MODE m) override;
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protected:
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// Members
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JMODE Jmode; /* MODE_OBJECT by default */
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PCSZ Objname; /* Name of first level object */
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PCSZ Xcol; /* Name of expandable column */
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int Limit; /* Limit of multiple values */
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int Pretty; /* Depends on file structure */
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int Base; /* The array index base */
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bool Strict; /* Strict syntax checking */
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char Sep; /* The Jpath separator */
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const char *Uri; /* MongoDB connection URI */
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PCSZ Collname; /* External collection name */
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PSZ Options; /* Colist ; Pipe */
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PSZ Filter; /* Filter */
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PSZ Driver; /* MongoDB Driver (C or JAVA) */
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bool Pipe; /* True if Colist is a pipeline */
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int Version; /* Driver version */
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PSZ Wrapname; /* MongoDB java wrapper name */
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}; // end of JSONDEF
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/* -------------------------- TDBJSN class --------------------------- */
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/***********************************************************************/
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/* This is the JSN Access Method class declaration. */
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/* The table is a DOS file, each record being a JSON object. */
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/***********************************************************************/
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class DllExport TDBJSN : public TDBDOS {
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friend class JSONCOL;
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friend class JSONDEF;
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friend class JSONDISC;
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#if defined(CMGO_SUPPORT)
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friend class CMGFAM;
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#endif // CMGO_SUPPORT
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#if defined(JAVA_SUPPORT)
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friend class JMGFAM;
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#endif // JAVA_SUPPORT
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public:
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// Constructor
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TDBJSN(PJDEF tdp, PTXF txfp);
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TDBJSN(TDBJSN *tdbp);
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// Implementation
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AMT GetAmType(void) override {return TYPE_AM_JSN;}
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bool SkipHeader(PGLOBAL g) override;
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PTDB Duplicate(PGLOBAL g) override {return (PTDB)new(g) TDBJSN(this);}
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PJSON GetRow(void) {return Row;}
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void SetG(PGLOBAL g) {G = g;}
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// Methods
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PTDB Clone(PTABS t) override;
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PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n) override;
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PCOL InsertSpecialColumn(PCOL colp) override;
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int RowNumber(PGLOBAL g, bool b = FALSE) override
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{return (b) ? M : N;}
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bool CanBeFiltered(void) override
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{return Txfp->GetAmType() == TYPE_AM_MGO || !Xcol;}
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// Database routines
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//int Cardinality(PGLOBAL g) override;
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//int GetMaxSize(PGLOBAL g) override;
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bool OpenDB(PGLOBAL g) override;
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int ReadDB(PGLOBAL g) override;
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bool PrepareWriting(PGLOBAL g) override;
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int WriteDB(PGLOBAL g) override;
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void CloseDB(PGLOBAL g) override;
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// Specific routine
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int EstimatedLength(void) override;
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protected:
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PJSON FindRow(PGLOBAL g);
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bool MakeTopTree(PGLOBAL g, PJSON jsp);
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// Members
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PGLOBAL G; // Support of parse memory
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PJSON Top; // The top JSON tree
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PJSON Row; // The current row
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PJVAL Val; // The value of the current row
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PJCOL Colp; // The multiple column
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JMODE Jmode; // MODE_OBJECT by default
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PCSZ Objname; // The table object name
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PCSZ Xcol; // Name of expandable column
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int Fpos; // The current row index
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int N; // The current Rownum
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int M; // Index of multiple value
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int Limit; // Limit of multiple values
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int Pretty; // Depends on file structure
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int NextSame; // Same next row
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int SameRow; // Same row nb
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int Xval; // Index of expandable array
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int B; // Array index base
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char Sep; // The Jpath separator
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bool Strict; // Strict syntax checking
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bool Comma; // Row has final comma
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bool Xpdable; // False: expandable columns are NULL
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}; // end of class TDBJSN
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/* -------------------------- JSONCOL class -------------------------- */
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/***********************************************************************/
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/* Class JSONCOL: JSON access method column descriptor. */
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/***********************************************************************/
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class DllExport JSONCOL : public DOSCOL {
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friend class TDBJSN;
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friend class TDBJSON;
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#if defined(CMGO_SUPPORT)
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friend class CMGFAM;
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#endif // CMGO_SUPPORT
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#if defined(JAVA_SUPPORT)
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friend class JMGFAM;
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#endif // JAVA_SUPPORT
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public:
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// Constructors
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JSONCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i);
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JSONCOL(JSONCOL *colp, PTDB tdbp); // Constructor used in copy process
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// Implementation
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int GetAmType(void) override {return Tjp->GetAmType();}
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bool Stringify(void) override { return Sgfy; }
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// Methods
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bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check) override;
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bool ParseJpath(PGLOBAL g);
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PSZ GetJpath(PGLOBAL g, bool proj) override;
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void ReadColumn(PGLOBAL g) override;
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void WriteColumn(PGLOBAL g) override;
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protected:
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bool CheckExpand(PGLOBAL g, int i, PSZ nm, bool b);
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bool SetArrayOptions(PGLOBAL g, char *p, int i, PSZ nm);
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PVAL GetColumnValue(PGLOBAL g, PJSON row, int i);
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PVAL ExpandArray(PGLOBAL g, PJAR arp, int n);
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PVAL CalculateArray(PGLOBAL g, PJAR arp, int n);
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PVAL MakeJson(PGLOBAL g, PJSON jsp, int n);
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PJVAL GetRowValue(PGLOBAL g, PJSON row, int i);
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void SetJsonValue(PGLOBAL g, PVAL vp, PJVAL val);
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PJSON GetRow(PGLOBAL g);
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// Default constructor not to be used
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JSONCOL(void) = default;
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// Members
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PGLOBAL G; // Support of parse memory
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TDBJSN *Tjp; // To the JSN table block
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PVAL MulVal; // To value used by multiple column
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char *Jpath; // The json path
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JNODE *Nodes; // The intermediate objects
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int Nod; // The number of intermediate objects
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int Xnod; // Index of multiple values
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char Sep; // The Jpath separator
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bool Xpd; // True for expandable column
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bool Parsed; // True when parsed
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bool Warned; // True when warning issued
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bool Sgfy; // True if stringified
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}; // end of class JSONCOL
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/* -------------------------- TDBJSON class -------------------------- */
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/***********************************************************************/
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/* This is the JSON Access Method class declaration. */
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/***********************************************************************/
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class DllExport TDBJSON : public TDBJSN {
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friend class JSONDEF;
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friend class JSONCOL;
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public:
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// Constructor
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TDBJSON(PJDEF tdp, PTXF txfp);
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TDBJSON(PJTDB tdbp);
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// Implementation
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AMT GetAmType(void) override {return TYPE_AM_JSON;}
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PTDB Duplicate(PGLOBAL g) override {return (PTDB)new(g) TDBJSON(this);}
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PJAR GetDoc(void) {return Doc;}
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// Methods
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PTDB Clone(PTABS t) override;
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// Database routines
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int Cardinality(PGLOBAL g) override;
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int GetMaxSize(PGLOBAL g) override;
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void ResetSize(void) override;
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int GetProgCur(void) override {return N;}
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int GetRecpos(void) override;
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bool SetRecpos(PGLOBAL g, int recpos) override;
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bool OpenDB(PGLOBAL g) override;
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int ReadDB(PGLOBAL g) override;
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bool PrepareWriting(PGLOBAL g) override {return false;}
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int WriteDB(PGLOBAL g) override;
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int DeleteDB(PGLOBAL g, int irc) override;
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void CloseDB(PGLOBAL g) override;
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int MakeDocument(PGLOBAL g);
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// Optimization routines
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int MakeIndex(PGLOBAL g, PIXDEF pxdf, bool add) override;
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protected:
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int MakeNewDoc(PGLOBAL g);
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// Members
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PJAR Doc; // The document array
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int Multiple; // 0: No 1: DIR 2: Section 3: filelist
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bool Done; // True when document parsing is done
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bool Changed; // After Update, Insert or Delete
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}; // end of class TDBJSON
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/***********************************************************************/
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/* This is the class declaration for the JSON catalog table. */
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/***********************************************************************/
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class DllExport TDBJCL : public TDBCAT {
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public:
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// Constructor
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TDBJCL(PJDEF tdp);
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protected:
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// Specific routines
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PQRYRES GetResult(PGLOBAL g) override;
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// Members
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PTOS Topt;
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PCSZ Db;
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PCSZ Dsn;
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}; // end of class TDBJCL
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