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Diffstat (limited to 'storage/connect/tabxml.h')
| -rw-r--r-- | storage/connect/tabxml.h | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/storage/connect/tabxml.h b/storage/connect/tabxml.h new file mode 100644 index 00000000..42dbb038 --- /dev/null +++ b/storage/connect/tabxml.h @@ -0,0 +1,273 @@ +/*************** Tabxml H Declares Source Code File (.H) ***************/ +/* Name: TABXML.H Version 1.7 */ +/* */ +/* (C) Copyright to the author Olivier BERTRAND 2007-2016 */ +/* */ +/* This file contains the XML table classes declares. */ +/***********************************************************************/ +typedef class XMLDEF *PXMLDEF; +typedef class TDBXML *PTDBXML; +typedef class XMLCOL *PXMLCOL; + +DllExport PQRYRES XMLColumns(PGLOBAL, char *, char *, PTOS, bool); + +/* --------------------------- XML classes --------------------------- */ + +/***********************************************************************/ +/* XML table. */ +/***********************************************************************/ +class DllExport XMLDEF : public TABDEF { /* Logical table description */ + friend class TDBXML; + friend class TDBXCT; + friend PQRYRES XMLColumns(PGLOBAL, char*, char*, PTOS, bool); + public: + // Constructor + XMLDEF(void); + + // Implementation + virtual const char *GetType(void) {return "XML";} + + // Methods + virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff); + virtual PTDB GetTable(PGLOBAL g, MODE m); + + protected: + // Members + PCSZ Fn; /* Path/Name of corresponding file */ + char *Encoding; /* New XML table file encoding */ + char *Tabname; /* Name of Table node */ + char *Rowname; /* Name of first level nodes */ + char *Colname; /* Name of second level nodes */ + char *Mulnode; /* Name of multiple node */ + char *XmlDB; /* Name of XML DB node */ + char *Nslist; /* List of namespaces to register */ + char *DefNs; /* Dummy name of default namespace */ + char *Attrib; /* Table node attributes */ + char *Hdattr; /* Header node attributes */ + PCSZ Entry; /* Zip entry name or pattern */ + int Coltype; /* Default column type */ + int Limit; /* Limit of multiple values */ + int Header; /* n first rows are header rows */ + bool Xpand; /* Put multiple tags in several rows */ + bool Usedom; /* True: DOM, False: libxml2 */ + bool Zipped; /* True: Zipped XML file(s) */ + bool Mulentries; /* True: multiple entries in zip file*/ + bool Skip; /* Skip null columns */ +}; // end of XMLDEF + +#if defined(INCLUDE_TDBXML) +#include "m_ctype.h" + +/***********************************************************************/ +/* This is the class declaration for the simple XML tables. */ +/***********************************************************************/ +class DllExport TDBXML : public TDBASE { + friend class XMLCOL; + friend class XMULCOL; + friend class XPOSCOL; + friend PQRYRES XMLColumns(PGLOBAL, char*, char*, PTOS, bool); + public: + // Constructor + TDBXML(PXMLDEF tdp); + TDBXML(PTDBXML tdbp); + + // Implementation + virtual AMT GetAmType(void) {return TYPE_AM_XML;} + virtual PTDB Duplicate(PGLOBAL g) {return (PTDB)new(g) TDBXML(this);} + + // Methods + virtual PTDB Clone(PTABS t); + virtual int GetRecpos(void); + virtual int GetProgCur(void) {return N;} + virtual PCSZ GetFile(PGLOBAL g) {return Xfile;} + virtual void SetFile(PGLOBAL g, PCSZ fn) {Xfile = fn;} + virtual void ResetDB(void) {N = 0;} + virtual void ResetSize(void) {MaxSize = -1;} + virtual int RowNumber(PGLOBAL g, bool b = false); + int LoadTableFile(PGLOBAL g, char *filename); + bool Initialize(PGLOBAL g); + bool SetTabNode(PGLOBAL g); + void SetNodeAttr(PGLOBAL g, char *attr, PXNODE node); + bool CheckRow(PGLOBAL g, bool b); + + // Database routines + virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n); + virtual PCOL InsertSpecialColumn(PCOL colp); +//virtual int GetMaxSame(PGLOBAL g) {return (Xpand) ? Limit : 1;} + virtual int Cardinality(PGLOBAL g); + virtual int GetMaxSize(PGLOBAL g); +//virtual bool NeedIndexing(PGLOBAL g); + virtual bool OpenDB(PGLOBAL g); + virtual int ReadDB(PGLOBAL g); + virtual int WriteDB(PGLOBAL g); + virtual int DeleteDB(PGLOBAL g, int irc); + virtual void CloseDB(PGLOBAL g); + virtual int CheckWrite(PGLOBAL g) {Checked = true; return 0;} + virtual const CHARSET_INFO *data_charset(); + + protected: + // Members + PXDOC Docp; + PXNODE Root; + PXNODE Curp; + PXNODE DBnode; + PXNODE TabNode; + PXNODE RowNode; + PXNODE ColNode; + PXLIST Nlist; + PXLIST Clist; + PFBLOCK To_Xb; // Pointer to XML file block + PCOL Colp; // The multiple column + bool Changed; // After Update, Insert or Delete + bool Checked; // After Update check pass + bool NextSame; // Same next row + bool Xpand; // Put multiple tags in several rows + bool NewRow; // True when inserting a new row + bool Hasnod; // True if rows have subnodes + bool Write; // True for Insert and Update + bool Usedom; // True for DOM, False for libxml2 + bool Bufdone; // True when column buffers allocated + bool Nodedone; // True when column nodes allocated + bool Void; // True if the file does not exist + bool Zipped; // True if Zipped XML file(s) + bool Mulentries; // True if multiple entries in zip file + PCSZ Xfile; // The XML file + char *Enc; // New XML table file encoding + char *Tabname; // Name of Table node + char *Rowname; // Name of first level nodes + char *Colname; // Name of second level nodes + char *Mulnode; // Name of multiple node + char *XmlDB; // Name of XML DB node + char *Nslist; // List of namespaces to register + char *DefNs; // Dummy name of default namespace + char *Attrib; // Table node attribut(s) + char *Hdattr; // Header node attribut(s) + PCSZ Entry; // Zip entry name or pattern + int Coltype; // Default column type + int Limit; // Limit of multiple values + int Header; // n first rows are header rows + int Multiple; // If multiple files + int Nrow; // The table cardinality + int Irow; // The current row index + int Nsub; // The current subrow index + int N; // The current Rowid + }; // end of class TDBXML + +/***********************************************************************/ +/* Class XMLCOL: XDB table access method column descriptor. */ +/***********************************************************************/ +class XMLCOL : public COLBLK { + friend class TDBXML; + public: + // Constructors + XMLCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i, PCSZ am = "XML"); + XMLCOL(XMLCOL *colp, PTDB tdbp); // Constructor used in copy process + + // Implementation + virtual int GetAmType(void) {return TYPE_AM_XML;} + virtual void SetTo_Val(PVAL valp) {To_Val = valp;} + bool ParseXpath(PGLOBAL g, bool mode); + + // Methods + virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check); + virtual void ReadColumn(PGLOBAL g); + virtual void WriteColumn(PGLOBAL g); + bool AllocBuf(PGLOBAL g, bool mode); + void AllocNodes(PGLOBAL g, PXDOC dp); + + protected: +//xmlNodePtr SelectSingleNode(xmlNodePtr node, char *name); + + // Default constructor not to be used + XMLCOL(void) : COLBLK(1) {} + + // Members + PXLIST Nl; + PXLIST Nlx; + PXNODE ColNode; + PXNODE ValNode; + PXNODE Cxnp; + PXNODE Vxnp; + PXATTR Vxap; + PXATTR AttNode; + PTDBXML Tdbp; + char *Valbuf; // To the node value buffer + char *Xname; // The node or attribute name + char* *Nodes; // The intermediate nodes + int Type; // 0: Attribute, 1: Tag, 2: position + int Nod; // The number of intermediate nodes + int Inod; // Index of multiple node + int Rank; // Position + bool Mul; // true for multiple column + bool Checked; // Was checked while Updating + int Long; // Buffer length + int Nx; // The last read row + int Sx; // The last read sub-row + int N; // The number of (multiple) values + PVAL To_Val; // To value used for Update/Insert + }; // end of class XMLCOL + +/***********************************************************************/ +/* Derived class XMLCOLX: used to replace a multiple XMLCOL by the */ +/* derived class XMULCOL that has specialize read and write functions.*/ +/* Note: this works only if the members of the derived class are the */ +/* same than the ones of the original class (NO added members). */ +/***********************************************************************/ +class XMLCOLX : public XMLCOL { + public: + // Fake operator new used to change a filter into a derived filter + void * operator new(size_t size, PXMLCOL colp) {return colp;} +#if !defined(__BORLANDC__) + // Avoid warning C4291 by defining a matching dummy delete operator + void operator delete(void *, size_t size) {} + void operator delete(void *, PXMLCOL) {} +#endif + }; // end of class XMLCOLX + +/***********************************************************************/ +/* Class XMULCOL: XML table access method multiple column descriptor. */ +/***********************************************************************/ +class XMULCOL : public XMLCOLX { + public: + // The constructor must restore Value because XOBJECT has a void + // constructor called by default that set Value to NULL + XMULCOL(PVAL valp) {Value = valp; Mul = true;} + + // Methods + virtual void ReadColumn(PGLOBAL g); + virtual void WriteColumn(PGLOBAL g); + }; // end of class XMULCOL + +/***********************************************************************/ +/* Class XPOSCOL: XML table column accessed by position. */ +/***********************************************************************/ +class XPOSCOL : public XMLCOLX { + public: + // The constructor must restore Value because XOBJECT has a void + // constructor called by default that set Value to NULL + XPOSCOL(PVAL valp) {Value = valp;} + + // Methods + virtual void ReadColumn(PGLOBAL g); + virtual void WriteColumn(PGLOBAL g); + }; // end of class XPOSCOL + +/***********************************************************************/ +/* This is the class declaration for the XML catalog table. */ +/***********************************************************************/ +class TDBXCT : public TDBCAT { + public: + // Constructor + TDBXCT(PXMLDEF tdp); + + protected: + // Specific routines + virtual PQRYRES GetResult(PGLOBAL g); + + // Members + PTOS Topt; + char *Db; + char *Tabn; + }; // end of class TDBXCT + +#endif // INCLUDE_TDBXML |