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+/* Copyright (C) MariaDB Corporation Ab
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/*************** Mycat CC Program Source Code File (.CC) ***************/
+/* PROGRAM NAME: MYCAT */
+/* ------------- */
+/* Version 1.8 */
+/* */
+/* Author: Olivier Bertrand 2012 - 2020 */
+/* */
+/* WHAT THIS PROGRAM DOES: */
+/* ----------------------- */
+/* This program are the DB description related routines. */
+/***********************************************************************/
+
+/***********************************************************************/
+/* Include relevant MariaDB header file. */
+/***********************************************************************/
+#define DONT_DEFINE_VOID
+#include <my_global.h>
+
+#if defined(UNIX)
+#include <unistd.h>
+#include <string.h>
+#endif
+#include "handler.h"
+#undef OFFSET
+
+/***********************************************************************/
+/* Include application header files */
+/* */
+/* global.h is header containing all global declarations. */
+/* plgdbsem.h is header containing DB application declarations. */
+/* tabdos.h is header containing TDBDOS classes declarations. */
+/* MYCAT.h is header containing DB description declarations. */
+/***********************************************************************/
+#if defined(UNIX)
+#include "osutil.h"
+#endif // UNIX
+#include "global.h"
+#include "plgdbsem.h"
+//#include "reldef.h"
+#include "xtable.h"
+#include "tabext.h"
+#include "tabcol.h"
+#include "filamtxt.h"
+#include "tabdos.h"
+#include "tabfmt.h"
+#if defined(VCT_SUPPORT)
+#include "tabvct.h"
+#endif // VCT_SUPPORT
+#include "tabsys.h"
+#if defined(_WIN32)
+#include "tabmac.h"
+#include "tabwmi.h"
+#endif // _WIN32
+//#include "tabtbl.h"
+#include "tabxcl.h"
+#include "tabtbl.h"
+#include "taboccur.h"
+#include "tabmul.h"
+#include "tabmysql.h"
+#if defined(ODBC_SUPPORT)
+#define NODBC
+#include "tabodbc.h"
+#endif // ODBC_SUPPORT
+#if defined(JAVA_SUPPORT)
+#define NJDBC
+#include "tabjdbc.h"
+#endif // JAVA_SUPPORT
+#include "tabpivot.h"
+#include "tabvir.h"
+#if defined(BSON_SUPPORT)
+#include "tabbson.h"
+#else
+#include "tabjson.h"
+#endif // BSON_SUPPORT
+#include "ha_connect.h"
+#if defined(XML_SUPPORT)
+#include "tabxml.h"
+#endif // XML_SUPPORT
+#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT)
+#include "mongo.h"
+#endif // JAVA_SUPPORT || CMGO_SUPPORT
+#if defined(ZIP_SUPPORT)
+#include "tabzip.h"
+#endif // ZIP_SUPPORT
+#if defined(REST_SUPPORT)
+#include "tabrest.h"
+#endif // REST_SUPPORT
+#include "mycat.h"
+
+/***********************************************************************/
+/* Extern static variables. */
+/***********************************************************************/
+#if defined(_WIN32)
+extern "C" HINSTANCE s_hModule; // Saved module handle
+#endif // !_WIN32
+#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT)
+bool MongoEnabled(void);
+#endif // JAVA_SUPPORT || CMGO_SUPPORT
+#if defined(BSON_SUPPORT)
+bool Force_Bson(void);
+#endif // BSON_SUPPORT
+
+/***********************************************************************/
+/* Get the plugin directory. */
+/***********************************************************************/
+char *GetPluginDir(void)
+{
+ return opt_plugin_dir;
+} // end of GetPluginDir
+
+/***********************************************************************/
+/* Get the lc_messages_dir, it is where error messages for various */
+/* languages are installed, and by default the INSTALL_MYSQLSHAREDIR. */
+/***********************************************************************/
+char *GetMessageDir(void)
+{
+ return lc_messages_dir;
+} // end of GetMessageDir
+
+/***********************************************************************/
+/* Get a unique enum table type ID. */
+/***********************************************************************/
+TABTYPE GetTypeID(const char *type)
+ {
+ return (!type) ? TAB_UNDEF
+ : (!stricmp(type, "DOS")) ? TAB_DOS
+ : (!stricmp(type, "FIX")) ? TAB_FIX
+ : (!stricmp(type, "BIN")) ? TAB_BIN
+ : (!stricmp(type, "CSV")) ? TAB_CSV
+ : (!stricmp(type, "FMT")) ? TAB_FMT
+ : (!stricmp(type, "DBF")) ? TAB_DBF
+#if defined(XML_SUPPORT)
+ : (!stricmp(type, "XML")) ? TAB_XML
+#endif // XML_SUPPORT
+ : (!stricmp(type, "INI")) ? TAB_INI
+ : (!stricmp(type, "VEC")) ? TAB_VEC
+#if defined(ODBC_SUPPORT)
+ : (!stricmp(type, "ODBC")) ? TAB_ODBC
+#endif // ODBC_SUPPORT
+#if defined(JAVA_SUPPORT)
+ : (!stricmp(type, "JDBC")) ? TAB_JDBC
+#endif // JAVA_SUPPORT
+#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT)
+ : (!stricmp(type, "MONGO") && MongoEnabled()) ? TAB_MONGO
+#endif // JAVA_SUPPORT || CMGO_SUPPORT
+ : (!stricmp(type, "MYSQL")) ? TAB_MYSQL
+ : (!stricmp(type, "MYPRX")) ? TAB_MYSQL
+ : (!stricmp(type, "DIR")) ? TAB_DIR
+#if defined(_WIN32)
+ : (!stricmp(type, "MAC")) ? TAB_MAC
+ : (!stricmp(type, "WMI")) ? TAB_WMI
+#endif // _WIN32
+ : (!stricmp(type, "TBL")) ? TAB_TBL
+ : (!stricmp(type, "XCOL")) ? TAB_XCL
+ : (!stricmp(type, "OCCUR")) ? TAB_OCCUR
+ : (!stricmp(type, "CATLG")) ? TAB_PRX // Legacy
+ : (!stricmp(type, "PROXY")) ? TAB_PRX
+ : (!stricmp(type, "PIVOT")) ? TAB_PIVOT
+ : (!stricmp(type, "VIR")) ? TAB_VIR
+ : (!stricmp(type, "JSON")) ? TAB_JSON
+#if defined(BSON_SUPPORT)
+ : (!stricmp(type, "BSON")) ? TAB_BSON
+#endif // BSON_SUPPORT
+#if defined(ZIP_SUPPORT)
+ : (!stricmp(type, "ZIP")) ? TAB_ZIP
+#endif // ZIP_SUPPORT
+ : (!stricmp(type, "OEM")) ? TAB_OEM : TAB_NIY;
+ } // end of GetTypeID
+
+/***********************************************************************/
+/* Return true for table types based on file. */
+/***********************************************************************/
+bool IsFileType(TABTYPE type)
+ {
+ bool isfile;
+
+ switch (type) {
+ case TAB_DOS:
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_CSV:
+ case TAB_FMT:
+ case TAB_DBF:
+ case TAB_XML:
+ case TAB_INI:
+ case TAB_VEC:
+ case TAB_JSON:
+#if defined(BSON_SUPPORT)
+ case TAB_BSON:
+#endif // BSON_SUPPORT
+ case TAB_REST:
+ // case TAB_ZIP:
+ isfile= true;
+ break;
+ default:
+ isfile= false;
+ break;
+ } // endswitch type
+
+ return isfile;
+ } // end of IsFileType
+
+/***********************************************************************/
+/* Return true for table types returning exact row count. */
+/***********************************************************************/
+bool IsExactType(TABTYPE type)
+ {
+ bool exact;
+
+ switch (type) {
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_DBF:
+// case TAB_XML: depends on Multiple || Xpand || Coltype
+// case TAB_JSON: depends on Multiple || Xpand || Coltype
+ case TAB_VEC:
+ case TAB_VIR:
+ exact= true;
+ break;
+ default:
+ exact= false;
+ break;
+ } // endswitch type
+
+ return exact;
+ } // end of IsExactType
+
+/***********************************************************************/
+/* Return true for table types accepting null fields. */
+/***********************************************************************/
+bool IsTypeNullable(TABTYPE type)
+ {
+ bool nullable;
+
+ switch (type) {
+ case TAB_MAC:
+ case TAB_DIR:
+ nullable= false;
+ break;
+ default:
+ nullable= true;
+ break;
+ } // endswitch type
+
+ return nullable;
+ } // end of IsTypeNullable
+
+/***********************************************************************/
+/* Return true for fixed record length tables. */
+/***********************************************************************/
+bool IsTypeFixed(TABTYPE type)
+ {
+ bool fix;
+
+ switch (type) {
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_VEC:
+// case TAB_DBF: ???
+ fix= true;
+ break;
+ default:
+ fix= false;
+ break;
+ } // endswitch type
+
+ return fix;
+ } // end of IsTypeFixed
+
+/***********************************************************************/
+/* Return true for table indexable by XINDEX. */
+/***********************************************************************/
+bool IsTypeIndexable(TABTYPE type)
+ {
+ bool idx;
+
+ switch (type) {
+ case TAB_DOS:
+ case TAB_CSV:
+ case TAB_FMT:
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_VEC:
+ case TAB_DBF:
+ case TAB_JSON:
+#if defined(BSON_SUPPORT)
+ case TAB_BSON:
+#endif // BSON_SUPPORT
+ idx= true;
+ break;
+ default:
+ idx= false;
+ break;
+ } // endswitch type
+
+ return idx;
+ } // end of IsTypeIndexable
+
+/***********************************************************************/
+/* Return index type: 0 NO, 1 XINDEX, 2 REMOTE. */
+/***********************************************************************/
+int GetIndexType(TABTYPE type)
+ {
+ int xtyp;
+
+ switch (type) {
+ case TAB_DOS:
+ case TAB_CSV:
+ case TAB_FMT:
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_VEC:
+ case TAB_DBF:
+ case TAB_JSON:
+#if defined(BSON_SUPPORT)
+ case TAB_BSON:
+#endif // BSON_SUPPORT
+ xtyp= 1;
+ break;
+ case TAB_MYSQL:
+ case TAB_ODBC:
+ case TAB_JDBC:
+ case TAB_MONGO:
+ xtyp= 2;
+ break;
+ case TAB_VIR:
+ xtyp= 3;
+ break;
+ default:
+ xtyp= 0;
+ break;
+ } // endswitch type
+
+ return xtyp;
+ } // end of GetIndexType
+
+/***********************************************************************/
+/* Get a unique enum catalog function ID. */
+/***********************************************************************/
+uint GetFuncID(const char *func)
+ {
+ uint fnc;
+
+ if (!func)
+ fnc= FNC_NO;
+ else if (!strnicmp(func, "col", 3))
+ fnc= FNC_COL;
+ else if (!strnicmp(func, "tab", 3))
+ fnc= FNC_TABLE;
+ else if (!stricmp(func, "dsn") ||
+ !strnicmp(func, "datasource", 10) ||
+ !strnicmp(func, "source", 6) ||
+ !strnicmp(func, "sqldatasource", 13))
+ fnc= FNC_DSN;
+ else if (!strnicmp(func, "driver", 6) ||
+ !strnicmp(func, "sqldriver", 9))
+ fnc= FNC_DRIVER;
+ else
+ fnc= FNC_NIY;
+
+ return fnc;
+ } // end of GetFuncID
+
+/* ------------------------- Class CATALOG --------------------------- */
+
+/***********************************************************************/
+/* CATALOG Constructor. */
+/***********************************************************************/
+CATALOG::CATALOG(void)
+ {
+#if defined(_WIN32)
+//DataPath= ".\\";
+#else // !_WIN32
+//DataPath= "./";
+#endif // !_WIN32
+ memset(&Ctb, 0, sizeof(CURTAB));
+ Cbuf= NULL;
+ Cblen= 0;
+ DefHuge= false;
+ } // end of CATALOG constructor
+
+/* -------------------------- Class MYCAT ---------------------------- */
+
+/***********************************************************************/
+/* MYCAT Constructor. */
+/***********************************************************************/
+MYCAT::MYCAT(PHC hc) : CATALOG()
+ {
+ Hc= hc;
+ DefHuge= false;
+ } // end of MYCAT constructor
+
+/***********************************************************************/
+/* Nothing to do for CONNECT. */
+/***********************************************************************/
+void MYCAT::Reset(void)
+ {
+ } // end of Reset
+
+/***********************************************************************/
+/* GetTableDesc: retrieve a table descriptor. */
+/* Look for a table descriptor matching the name and type. */
+/***********************************************************************/
+PTABDEF MYCAT::GetTableDesc(PGLOBAL g, PTABLE tablep,
+ LPCSTR type, PRELDEF *)
+{
+ PTABDEF tdp= NULL;
+
+ if (trace(1))
+ htrc("GetTableDesc: name=%s am=%s\n", tablep->GetName(), SVP(type));
+
+ // If not specified get the type of this table
+ //if (!type)
+ // type= Hc->GetStringOption("Type","*");
+
+ tdp= MakeTableDesc(g, tablep, type);
+
+ if (trace(1))
+ htrc("GetTableDesc: tdp=%p\n", tdp);
+
+ return tdp;
+} // end of GetTableDesc
+
+/***********************************************************************/
+/* MakeTableDesc: make a table/view description. */
+/* Note: caller must check if name already exists before calling it. */
+/***********************************************************************/
+PTABDEF MYCAT::MakeTableDesc(PGLOBAL g, PTABLE tablep, LPCSTR am)
+ {
+ TABTYPE tc;
+ LPCSTR name= (PSZ)PlugDup(g, tablep->GetName());
+ LPCSTR schema= (PSZ)PlugDup(g, tablep->GetSchema());
+ PTABDEF tdp= NULL;
+
+ if (trace(1))
+ htrc("MakeTableDesc: name=%s schema=%s am=%s\n",
+ name, SVP(schema), SVP(am));
+
+ /*********************************************************************/
+ /* Get a unique enum identifier for types. */
+ /*********************************************************************/
+ if (!am) {
+ tc= Hc->GetRealType();
+ am= Hc->GetStringOption("Type","*");
+ } else
+ tc= GetTypeID(am);
+
+ switch (tc) {
+ case TAB_FIX:
+ case TAB_BIN:
+ case TAB_DBF:
+ case TAB_DOS: tdp= new(g) DOSDEF; break;
+ case TAB_CSV:
+ case TAB_FMT: tdp= new(g) CSVDEF; break;
+ case TAB_INI: tdp= new(g) INIDEF; break;
+ case TAB_DIR: tdp= new(g) DIRDEF; break;
+#if defined(XML_SUPPORT)
+ case TAB_XML: tdp= new(g) XMLDEF; break;
+#endif // XML_SUPPORT
+#if defined(VCT_SUPPORT)
+ case TAB_VEC: tdp= new(g) VCTDEF; break;
+#endif // VCT_SUPPORT
+#if defined(ODBC_SUPPORT)
+ case TAB_ODBC: tdp= new(g) ODBCDEF; break;
+#endif // ODBC_SUPPORT
+#if defined(JAVA_SUPPORT)
+ case TAB_JDBC: tdp= new(g) JDBCDEF; break;
+#endif // JAVA_SUPPORT
+#if defined(_WIN32)
+ case TAB_MAC: tdp= new(g) MACDEF; break;
+ case TAB_WMI: tdp= new(g) WMIDEF; break;
+#endif // _WIN32
+ case TAB_OEM: tdp= new(g) OEMDEF; break;
+ case TAB_TBL: tdp= new(g) TBLDEF; break;
+ case TAB_XCL: tdp= new(g) XCLDEF; break;
+ case TAB_PRX: tdp= new(g) PRXDEF; break;
+ case TAB_OCCUR: tdp= new(g) OCCURDEF; break;
+ case TAB_MYSQL: tdp= new(g) MYSQLDEF; break;
+ case TAB_PIVOT: tdp= new(g) PIVOTDEF; break;
+ case TAB_VIR: tdp= new(g) VIRDEF; break;
+ case TAB_JSON:
+#if defined(BSON_SUPPORT)
+ if (Force_Bson())
+ tdp= new(g) BSONDEF;
+ else
+#endif // BSON_SUPPORT
+ tdp= new(g) JSONDEF;
+
+ break;
+#if defined(BSON_SUPPORT)
+ case TAB_BSON: tdp= new(g) BSONDEF; break;
+#endif // BSON_SUPPORT
+#if defined(ZIP_SUPPORT)
+ case TAB_ZIP: tdp= new(g) ZIPDEF; break;
+#endif // ZIP_SUPPORT
+#if defined(REST_SUPPORT)
+ case TAB_REST: tdp= new (g) RESTDEF; break;
+#endif // REST_SUPPORT
+#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT)
+ case TAB_MONGO:
+ if (MongoEnabled()) {
+ tdp = new(g) MGODEF;
+ break;
+ } // endif enabled
+ /* fall through */
+#endif // JAVA_SUPPORT || CMGO_SUPPORT
+ default:
+ snprintf(g->Message, sizeof(g->Message), MSG(BAD_TABLE_TYPE), am, name);
+ } // endswitch
+
+ // Do make the table/view definition
+ if (tdp && tdp->Define(g, this, name, schema, am))
+ tdp = NULL;
+
+ if (trace(1))
+ htrc("Table %s made\n", am);
+
+ return tdp;
+ } // end of MakeTableDesc
+
+/***********************************************************************/
+/* Initialize a Table Description Block construction. */
+/***********************************************************************/
+PTDB MYCAT::GetTable(PGLOBAL g, PTABLE tablep, MODE mode, LPCSTR type)
+ {
+ PTABDEF tdp;
+ PTDB tdbp= NULL;
+// LPCSTR name= tablep->GetName();
+
+ if (trace(1))
+ htrc("GetTableDB: name=%s\n", tablep->GetName());
+
+ // Look for the description of the requested table
+ tdp= GetTableDesc(g, tablep, type);
+
+ if (tdp) {
+ if (trace(1))
+ htrc("tdb=%p type=%s\n", tdp, tdp->GetType());
+
+ if (tablep->GetSchema())
+ tdp->Database = SetPath(g, tablep->GetSchema());
+
+ if (trace(2))
+ htrc("Going to get table...\n");
+
+ tdbp= tdp->GetTable(g, mode);
+ } // endif tdp
+
+ if (tdbp) {
+ if (trace(1))
+ htrc("tdbp=%p name=%s amtype=%d\n", tdbp, tdbp->GetName(),
+ tdbp->GetAmType());
+ tablep->SetTo_Tdb(tdbp);
+ tdbp->SetTable(tablep);
+ tdbp->SetMode(mode);
+ } // endif tdbp
+
+ return (tdbp);
+ } // end of GetTable
+
+/***********************************************************************/
+/* ClearDB: Terminates Database usage. */
+/***********************************************************************/
+void MYCAT::ClearDB(PGLOBAL)
+ {
+ } // end of ClearDB
+
+/* ------------------------ End of MYCAT --------------------------- */
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