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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /storage/connect/tabjson.h
parentInitial commit. (diff)
downloadmariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz
mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/connect/tabjson.h')
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diff --git a/storage/connect/tabjson.h b/storage/connect/tabjson.h
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+/*************** tabjson H Declares Source Code File (.H) **************/
+/* Name: tabjson.h Version 1.3 */
+/* */
+/* (C) Copyright to the author Olivier BERTRAND 2014 - 2021 */
+/* */
+/* This file contains the JSON classes declares. */
+/***********************************************************************/
+#pragma once
+//#include "osutil.h" // Unuseful and bad for OEM
+#include "block.h"
+#include "colblk.h"
+#include "json.h"
+
+enum JMODE {MODE_OBJECT, MODE_ARRAY, MODE_VALUE};
+
+typedef class JSONDEF *PJDEF;
+typedef class TDBJSON *PJTDB;
+typedef class JSONCOL *PJCOL;
+class TDBJSN;
+DllExport PQRYRES JSONColumns(PGLOBAL, PCSZ, PCSZ, PTOS, bool);
+
+/***********************************************************************/
+/* The JSON tree node. Can be an Object or an Array. */
+/***********************************************************************/
+typedef struct _jnode {
+ PSZ Key; // The key used for object
+ OPVAL Op; // Operator used for this node
+ PVAL CncVal; // To cont value used for OP_CNC
+ PVAL Valp; // The internal array VALUE
+ int Rank; // The rank in array
+ int Rx; // Read row number
+ int Nx; // Next to read row number
+} JNODE, *PJNODE;
+
+typedef struct _jncol {
+ struct _jncol *Next;
+ char *Name;
+ char *Fmt;
+ JTYP Type;
+ int Len;
+ int Scale;
+ bool Cbn;
+ bool Found;
+} JCOL, *PJCL;
+
+/***********************************************************************/
+/* Class used to get the columns of a mongo collection. */
+/***********************************************************************/
+class JSONDISC : public BLOCK {
+public:
+ // Constructor
+ JSONDISC(PGLOBAL g, uint *lg);
+
+ // Functions
+ int GetColumns(PGLOBAL g, PCSZ db, PCSZ dsn, PTOS topt);
+ bool Find(PGLOBAL g, PJVAL jvp, PCSZ key, int j);
+ void AddColumn(PGLOBAL g);
+
+ // Members
+ JCOL jcol;
+ PJCL jcp, fjcp, pjcp;
+//PVL vlp;
+ PJDEF tdp;
+ TDBJSN *tjnp;
+ PJTDB tjsp;
+ PJPR jpp;
+ PJSON jsp;
+ PJOB row;
+ 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 JSONDISC
+
+/***********************************************************************/
+/* JSON table. */
+/***********************************************************************/
+class DllExport JSONDEF : public DOSDEF { /* Table description */
+ friend class TDBJSON;
+ friend class TDBJSN;
+ friend class TDBJCL;
+ friend class JSONDISC;
+#if defined(CMGO_SUPPORT)
+ friend class CMGFAM;
+#endif // CMGO_SUPPORT
+#if defined(JAVA_SUPPORT)
+ friend class JMGFAM;
+#endif // JAVA_SUPPORT
+public:
+ // Constructor
+ JSONDEF(void);
+
+ // Implementation
+ virtual const char *GetType(void) {return "JSON";}
+
+ // Methods
+ virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff);
+ virtual PTDB GetTable(PGLOBAL g, MODE m);
+
+ protected:
+ // Members
+ 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 JSONDEF
+
+/* -------------------------- TDBJSN class --------------------------- */
+
+/***********************************************************************/
+/* This is the JSN Access Method class declaration. */
+/* The table is a DOS file, each record being a JSON object. */
+/***********************************************************************/
+class DllExport TDBJSN : public TDBDOS {
+ friend class JSONCOL;
+ friend class JSONDEF;
+ friend class JSONDISC;
+#if defined(CMGO_SUPPORT)
+ friend class CMGFAM;
+#endif // CMGO_SUPPORT
+#if defined(JAVA_SUPPORT)
+ friend class JMGFAM;
+#endif // JAVA_SUPPORT
+public:
+ // Constructor
+ TDBJSN(PJDEF tdp, PTXF txfp);
+ TDBJSN(TDBJSN *tdbp);
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_JSN;}
+ virtual bool SkipHeader(PGLOBAL g);
+ virtual PTDB Duplicate(PGLOBAL g) {return (PTDB)new(g) TDBJSN(this);}
+ PJSON GetRow(void) {return Row;}
+ void SetG(PGLOBAL g) {G = g;}
+
+ // Methods
+ virtual PTDB Clone(PTABS t);
+ virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n);
+ virtual PCOL InsertSpecialColumn(PCOL colp);
+ virtual int RowNumber(PGLOBAL g, bool b = FALSE)
+ {return (b) ? M : N;}
+ virtual bool CanBeFiltered(void)
+ {return Txfp->GetAmType() == TYPE_AM_MGO || !Xcol;}
+
+ // Database routines
+ //virtual int Cardinality(PGLOBAL g);
+ //virtual int GetMaxSize(PGLOBAL g);
+ virtual bool OpenDB(PGLOBAL g);
+ virtual int ReadDB(PGLOBAL g);
+ virtual bool PrepareWriting(PGLOBAL g);
+ virtual int WriteDB(PGLOBAL g);
+ virtual void CloseDB(PGLOBAL g);
+
+ // Specific routine
+ virtual int EstimatedLength(void);
+
+protected:
+ PJSON FindRow(PGLOBAL g);
+ bool MakeTopTree(PGLOBAL g, PJSON jsp);
+
+ // Members
+ PGLOBAL G; // Support of parse memory
+ PJSON Top; // The top JSON tree
+ PJSON Row; // The current row
+ PJVAL Val; // The value of the current row
+ PJCOL 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
+ bool Xpdable; // False: expandable columns are NULL
+}; // end of class TDBJSN
+
+/* -------------------------- JSONCOL class -------------------------- */
+
+/***********************************************************************/
+/* Class JSONCOL: JSON access method column descriptor. */
+/***********************************************************************/
+class DllExport JSONCOL : public DOSCOL {
+ friend class TDBJSN;
+ friend class TDBJSON;
+#if defined(CMGO_SUPPORT)
+ friend class CMGFAM;
+#endif // CMGO_SUPPORT
+#if defined(JAVA_SUPPORT)
+ friend class JMGFAM;
+#endif // JAVA_SUPPORT
+public:
+ // Constructors
+ JSONCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i);
+ JSONCOL(JSONCOL *colp, PTDB tdbp); // Constructor used in copy process
+
+ // Implementation
+ virtual int GetAmType(void) {return Tjp->GetAmType();}
+ virtual bool Stringify(void) { return Sgfy; }
+
+ // Methods
+ virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check);
+ bool ParseJpath(PGLOBAL g);
+ virtual PSZ GetJpath(PGLOBAL g, bool proj);
+ virtual void ReadColumn(PGLOBAL g);
+ virtual void WriteColumn(PGLOBAL g);
+
+ protected:
+ bool CheckExpand(PGLOBAL g, int i, PSZ nm, bool b);
+ bool SetArrayOptions(PGLOBAL g, char *p, int i, PSZ nm);
+ PVAL GetColumnValue(PGLOBAL g, PJSON row, int i);
+ PVAL ExpandArray(PGLOBAL g, PJAR arp, int n);
+ PVAL CalculateArray(PGLOBAL g, PJAR arp, int n);
+ PVAL MakeJson(PGLOBAL g, PJSON jsp, int n);
+ PJVAL GetRowValue(PGLOBAL g, PJSON row, int i);
+ void SetJsonValue(PGLOBAL g, PVAL vp, PJVAL val);
+ PJSON GetRow(PGLOBAL g);
+
+ // Default constructor not to be used
+ JSONCOL(void) = default;
+
+ // Members
+ PGLOBAL G; // Support of parse memory
+ TDBJSN *Tjp; // To the JSN table block
+ 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 JSONCOL
+
+/* -------------------------- TDBJSON class -------------------------- */
+
+/***********************************************************************/
+/* This is the JSON Access Method class declaration. */
+/***********************************************************************/
+class DllExport TDBJSON : public TDBJSN {
+ friend class JSONDEF;
+ friend class JSONCOL;
+ public:
+ // Constructor
+ TDBJSON(PJDEF tdp, PTXF txfp);
+ TDBJSON(PJTDB tdbp);
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_JSON;}
+ virtual PTDB Duplicate(PGLOBAL g) {return (PTDB)new(g) TDBJSON(this);}
+ PJAR GetDoc(void) {return Doc;}
+
+ // Methods
+ virtual PTDB Clone(PTABS t);
+
+ // Database routines
+ virtual int Cardinality(PGLOBAL g);
+ virtual int GetMaxSize(PGLOBAL g);
+ virtual void ResetSize(void);
+ virtual int GetProgCur(void) {return N;}
+ virtual int GetRecpos(void);
+ virtual bool SetRecpos(PGLOBAL g, int recpos);
+ virtual bool OpenDB(PGLOBAL g);
+ virtual int ReadDB(PGLOBAL g);
+ virtual bool PrepareWriting(PGLOBAL g) {return false;}
+ virtual int WriteDB(PGLOBAL g);
+ virtual int DeleteDB(PGLOBAL g, int irc);
+ virtual void CloseDB(PGLOBAL g);
+ int MakeDocument(PGLOBAL g);
+
+ // Optimization routines
+ virtual int MakeIndex(PGLOBAL g, PIXDEF pxdf, bool add);
+
+ protected:
+ int MakeNewDoc(PGLOBAL g);
+
+ // Members
+ PJAR Doc; // The document array
+ int Multiple; // 0: No 1: DIR 2: Section 3: filelist
+ bool Done; // True when document parsing is done
+ bool Changed; // After Update, Insert or Delete
+ }; // end of class TDBJSON
+
+/***********************************************************************/
+/* This is the class declaration for the JSON catalog table. */
+/***********************************************************************/
+class DllExport TDBJCL : public TDBCAT {
+ public:
+ // Constructor
+ TDBJCL(PJDEF tdp);
+
+ protected:
+ // Specific routines
+ virtual PQRYRES GetResult(PGLOBAL g);
+
+ // Members
+ PTOS Topt;
+ PCSZ Db;
+ PCSZ Dsn;
+ }; // end of class TDBJCL