diff options
Diffstat (limited to 'storage/connect/tabbson.cpp')
-rw-r--r-- | storage/connect/tabbson.cpp | 2633 |
1 files changed, 2633 insertions, 0 deletions
diff --git a/storage/connect/tabbson.cpp b/storage/connect/tabbson.cpp new file mode 100644 index 00000000..dfaf2284 --- /dev/null +++ b/storage/connect/tabbson.cpp @@ -0,0 +1,2633 @@ +/************* tabbson C++ Program Source Code File (.CPP) *************/ +/* PROGRAM NAME: tabbson Version 1.2 */ +/* (C) Copyright to the author Olivier BERTRAND 2020 - 2021 */ +/* This program are the BSON class DB execution routines. */ +/***********************************************************************/ + +/***********************************************************************/ +/* Include relevant sections of the MariaDB header file. */ +/***********************************************************************/ +#include <my_global.h> + +/***********************************************************************/ +/* Include application header files: */ +/* global.h is header containing all global declarations. */ +/* plgdbsem.h is header containing the DB application declarations. */ +/* tdbdos.h is header containing the TDBDOS declarations. */ +/* json.h is header containing the JSON classes declarations. */ +/***********************************************************************/ +#include "global.h" +#include "plgdbsem.h" +#include "maputil.h" +#include "filamtxt.h" +#include "tabdos.h" +#include "tabbson.h" +#include "filamap.h" +#if defined(GZ_SUPPORT) +#include "filamgz.h" +#endif // GZ_SUPPORT +#if defined(ZIP_SUPPORT) +#include "filamzip.h" +#endif // ZIP_SUPPORT +#if defined(JAVA_SUPPORT) +#include "jmgfam.h" +#endif // JAVA_SUPPORT +#if defined(CMGO_SUPPORT) +#include "cmgfam.h" +#endif // CMGO_SUPPORT +#include "tabmul.h" +#include "checklvl.h" +#include "resource.h" +#include "mycat.h" // for FNC_COL +#include "m_string.h" + +/***********************************************************************/ +/* This should be an option. */ +/***********************************************************************/ +#define MAXCOL 200 /* Default max column nb in result */ +//#define TYPE_UNKNOWN 12 /* Must be greater than other types */ + +/***********************************************************************/ +/* External functions. */ +/***********************************************************************/ +USETEMP UseTemp(void); +bool JsonAllPath(void); +int GetDefaultDepth(void); +char *GetJsonNull(void); +bool Stringified(PCSZ, char*); + +/***********************************************************************/ +/* BSONColumns: construct the result blocks containing the description */ +/* of all the columns of a table contained inside a JSON file. */ +/***********************************************************************/ +PQRYRES BSONColumns(PGLOBAL g, PCSZ db, PCSZ dsn, PTOS topt, bool info) +{ + static int buftyp[] = { TYPE_STRING, TYPE_SHORT, TYPE_STRING, TYPE_INT, + TYPE_INT, TYPE_SHORT, TYPE_SHORT, TYPE_STRING }; + static XFLD fldtyp[] = { FLD_NAME, FLD_TYPE, FLD_TYPENAME, FLD_PREC, + FLD_LENGTH, FLD_SCALE, FLD_NULL, FLD_FORMAT }; + static unsigned int length[] = { 0, 6, 8, 10, 10, 6, 6, 0 }; + int i, n = 0; + int ncol = sizeof(buftyp) / sizeof(int); + PJCL jcp; + BSONDISC* pjdc = NULL; + PQRYRES qrp; + PCOLRES crp; + + if (info) { + length[0] = 128; + length[7] = 256; + goto skipit; + } // endif info + + if (GetIntegerTableOption(g, topt, "Multiple", 0)) { + safe_strcpy(g->Message, sizeof(g->Message), "Cannot find column definition for multiple table"); + return NULL; + } // endif Multiple + + pjdc = new(g) BSONDISC(g, length); + + if (!(n = pjdc->GetColumns(g, db, dsn, topt))) + return NULL; + +skipit: + if (trace(1)) + htrc("BSONColumns: n=%d len=%d\n", n, length[0]); + + /*********************************************************************/ + /* Allocate the structures used to refer to the result set. */ + /*********************************************************************/ + qrp = PlgAllocResult(g, ncol, n, IDS_COLUMNS + 3, + buftyp, fldtyp, length, false, false); + + crp = qrp->Colresp->Next->Next->Next->Next->Next->Next; + crp->Name = PlugDup(g, "Nullable"); + crp->Next->Name = PlugDup(g, "Jpath"); + + if (info || !qrp) + return qrp; + + qrp->Nblin = n; + + /*********************************************************************/ + /* Now get the results into blocks. */ + /*********************************************************************/ + for (i = 0, jcp = pjdc->fjcp; jcp; i++, jcp = jcp->Next) { + if (jcp->Type == TYPE_UNKNOWN) + jcp->Type = TYPE_STRG; // Void column + + crp = qrp->Colresp; // Column Name + crp->Kdata->SetValue(jcp->Name, i); + crp = crp->Next; // Data Type + crp->Kdata->SetValue(jcp->Type, i); + crp = crp->Next; // Type Name + crp->Kdata->SetValue(GetTypeName(jcp->Type), i); + crp = crp->Next; // Precision + crp->Kdata->SetValue(jcp->Len, i); + crp = crp->Next; // Length + crp->Kdata->SetValue(jcp->Len, i); + crp = crp->Next; // Scale (precision) + crp->Kdata->SetValue(jcp->Scale, i); + crp = crp->Next; // Nullable + crp->Kdata->SetValue(jcp->Cbn ? 1 : 0, i); + crp = crp->Next; // Field format + + if (crp->Kdata) + crp->Kdata->SetValue(jcp->Fmt, i); + + } // endfor i + +/*********************************************************************/ +/* Return the result pointer. */ +/*********************************************************************/ + return qrp; +} // end of BSONColumns + +/* -------------------------- Class BSONDISC ------------------------- */ + +/***********************************************************************/ +/* Class used to get the columns of a JSON table. */ +/***********************************************************************/ +BSONDISC::BSONDISC(PGLOBAL g, uint* lg) +{ + length = lg; + jcp = fjcp = pjcp = NULL; + tdp = NULL; + tjnp = NULL; + jpp = NULL; + tjsp = NULL; + jsp = NULL; + bp = NULL; + row = NULL; + sep = NULL; + strfy = NULL; + i = n = bf = ncol = lvl = sz = limit = 0; + all = false; +} // end of BSONDISC constructor + +int BSONDISC::GetColumns(PGLOBAL g, PCSZ db, PCSZ dsn, PTOS topt) +{ + char filename[_MAX_PATH]; + bool mgo = (GetTypeID(topt->type) == TAB_MONGO); + PBVAL bdp = NULL; + + lvl = GetIntegerTableOption(g, topt, "Level", GetDefaultDepth()); + lvl = GetIntegerTableOption(g, topt, "Depth", lvl); + sep = GetStringTableOption(g, topt, "Separator", "."); + sz = GetIntegerTableOption(g, topt, "Jsize", 1024); + limit = GetIntegerTableOption(g, topt, "Limit", 50); + strfy = GetStringTableOption(g, topt, "Stringify", NULL); + + /*********************************************************************/ + /* Open the input file. */ + /*********************************************************************/ + tdp = new(g) BSONDEF; + tdp->G = NULL; +#if defined(ZIP_SUPPORT) + tdp->Entry = GetStringTableOption(g, topt, "Entry", NULL); + tdp->Zipped = GetBooleanTableOption(g, topt, "Zipped", false); +#endif // ZIP_SUPPORT + tdp->Fn = GetStringTableOption(g, topt, "Filename", NULL); + + if (!tdp->Fn && topt->http) + tdp->Fn = GetStringTableOption(g, topt, "Subtype", NULL); + + if (!(tdp->Database = SetPath(g, db))) + return 0; + + if ((tdp->Objname = GetStringTableOption(g, topt, "Object", NULL))) { + if (*tdp->Objname == '$') tdp->Objname++; + if (*tdp->Objname == '.') tdp->Objname++; + } // endif Objname + + tdp->Base = GetIntegerTableOption(g, topt, "Base", 0) ? 1 : 0; + tdp->Pretty = GetIntegerTableOption(g, topt, "Pretty", 2); + tdp->Xcol = GetStringTableOption(g, topt, "Expand", NULL); + tdp->Accept = GetBooleanTableOption(g, topt, "Accept", false); + tdp->Uri = (dsn && *dsn ? dsn : NULL); + + if (!tdp->Fn && !tdp->Uri) { + safe_strcpy(g->Message, sizeof(g->Message), MSG(MISSING_FNAME)); + return 0; + } else + topt->subtype = NULL; + + if (tdp->Fn) { + // We used the file name relative to recorded datapath + PlugSetPath(filename, tdp->Fn, tdp->GetPath()); + tdp->Fn = PlugDup(g, filename); + } // endif Fn + + if (trace(1)) + htrc("File %s objname=%s pretty=%d lvl=%d\n", + tdp->Fn, tdp->Objname, tdp->Pretty, lvl); + + if (tdp->Uri) { +#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT) + tdp->Collname = GetStringTableOption(g, topt, "Tabname", NULL); + tdp->Schema = GetStringTableOption(g, topt, "Dbname", "test"); + tdp->Options = (PSZ)GetStringTableOption(g, topt, "Colist", "all"); + tdp->Pipe = GetBooleanTableOption(g, topt, "Pipeline", false); + tdp->Driver = (PSZ)GetStringTableOption(g, topt, "Driver", NULL); + tdp->Version = GetIntegerTableOption(g, topt, "Version", 3); + tdp->Wrapname = (PSZ)GetStringTableOption(g, topt, "Wrapper", + (tdp->Version == 2) ? "Mongo2Interface" : "Mongo3Interface"); + tdp->Pretty = 0; +#else // !MONGO_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "MONGO"); + return 0; +#endif // !MONGO_SUPPORT + } // endif Uri + + if (tdp->Pretty == 2) { + tdp->G = g; + + if (tdp->Zipped) { +#if defined(ZIP_SUPPORT) + tjsp = new(g) TDBBSON(g, tdp, new(g) UNZFAM(tdp)); +#else // !ZIP_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "ZIP"); + return 0; +#endif // !ZIP_SUPPORT + } else + tjsp = new(g) TDBBSON(g, tdp, new(g) MAPFAM(tdp)); + + if (tjsp->MakeDocument(g)) + return 0; + + bp = tjsp->Bp; +// bdp = tjsp->GetDoc() ? bp->GetBson(tjsp->GetDoc()) : NULL; + bdp = tjsp->GetDoc(); + jsp = bdp ? bp->GetArrayValue(bdp, 0) : NULL; + } else { + if (!((tdp->Lrecl = GetIntegerTableOption(g, topt, "Lrecl", 0)))) { + if (!mgo) { + snprintf(g->Message, sizeof(g->Message), "LRECL must be specified for pretty=%d", tdp->Pretty); + return 0; + } else + tdp->Lrecl = 8192; // Should be enough + + } // endif Lrecl + + // Allocate the parse work memory + tdp->G = PlugInit(NULL, (size_t)tdp->Lrecl * (tdp->Pretty >= 0 ? 4 : 2)); + tdp->Ending = GetIntegerTableOption(g, topt, "Ending", CRLF); + + if (tdp->Zipped) { +#if defined(ZIP_SUPPORT) + tjnp = new(g)TDBBSN(g, tdp, new(g) UNZFAM(tdp)); +#else // !ZIP_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "ZIP"); + return NULL; +#endif // !ZIP_SUPPORT + } else if (tdp->Uri) { + if (tdp->Driver && toupper(*tdp->Driver) == 'C') { +#if defined(CMGO_SUPPORT) + tjnp = new(g) TDBBSN(g, tdp, new(g) CMGFAM(tdp)); +#else + snprintf(g->Message, sizeof(g->Message), "Mongo %s Driver not available", "C"); + return 0; +#endif + } else if (tdp->Driver && toupper(*tdp->Driver) == 'J') { +#if defined(JAVA_SUPPORT) + tjnp = new(g) TDBBSN(g, tdp, new(g) JMGFAM(tdp)); +#else + snprintf(g->Message, sizeof(g->Message), "Mongo %s Driver not available", "Java"); + return 0; +#endif + } else { // Driver not specified +#if defined(CMGO_SUPPORT) + tjnp = new(g) TDBBSN(g, tdp, new(g) CMGFAM(tdp)); +#elif defined(JAVA_SUPPORT) + tjnp = new(g) TDBBSN(g, tdp, new(g) JMGFAM(tdp)); +#else + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "MONGO"); + return 0; +#endif + } // endif Driver + + } else if (tdp->Pretty >= 0) + tjnp = new(g) TDBBSN(g, tdp, new(g) DOSFAM(tdp)); + else + tjnp = new(g) TDBBSN(g, tdp, new(g) BINFAM(tdp)); + + tjnp->SetMode(MODE_READ); + bp = tjnp->Bp; + + if (tjnp->OpenDB(g)) + return 0; + + switch (tjnp->ReadDB(g)) { + case RC_EF: + safe_strcpy(g->Message, sizeof(g->Message), "Void json table"); + case RC_FX: + goto err; + default: + jsp = tjnp->Row; + } // endswitch ReadDB + + } // endif pretty + + if (!(row = (jsp) ? bp->GetObject(jsp) : NULL)) { + safe_strcpy(g->Message, sizeof(g->Message), "Can only retrieve columns from object rows"); + goto err; + } // endif row + + all = GetBooleanTableOption(g, topt, "Fullarray", false); + jcol.Name = jcol.Fmt = NULL; + jcol.Next = NULL; + jcol.Found = true; + colname[0] = 0; + + if (!tdp->Uri) { + fmt[0] = '$'; + fmt[1] = '.'; + bf = 2; + } // endif Uri + + /*********************************************************************/ + /* Analyse the JSON tree and define columns. */ + /*********************************************************************/ + for (i = 1; ; i++) { + for (jpp = row; jpp; jpp = bp->GetNext(jpp)) { + strncpy(colname, bp->GetKey(jpp), 64); + fmt[bf] = 0; + + if (Find(g, bp->GetVlp(jpp), colname, MY_MIN(lvl, 0))) + goto err; + + } // endfor jpp + + // Missing column can be null + for (jcp = fjcp; jcp; jcp = jcp->Next) { + jcp->Cbn |= !jcp->Found; + jcp->Found = false; + } // endfor jcp + + if (tdp->Pretty != 2) { + // Read next record + switch (tjnp->ReadDB(g)) { + case RC_EF: + jsp = NULL; + break; + case RC_FX: + goto err; + default: + jsp = tjnp->Row; + } // endswitch ReadDB + + } else + jsp = bp->GetNext(jsp); + + if (!(row = (jsp) ? bp->GetObject(jsp) : NULL)) + break; + + } // endfor i + + if (tdp->Pretty != 2) + tjnp->CloseDB(g); + + return n; + +err: + if (tdp->Pretty != 2) + tjnp->CloseDB(g); + + return 0; +} // end of GetColumns + +bool BSONDISC::Find(PGLOBAL g, PBVAL jvp, PCSZ key, int j) +{ + char *p, *pc = colname + strlen(colname), buf[32]; + int ars; + size_t n; + PBVAL job; + PBVAL jar; + + if (jvp && !bp->IsJson(jvp)) { + if (JsonAllPath() && !fmt[bf]) + safe_strcat(fmt, sizeof(fmt), colname); + + jcol.Type = (JTYP)jvp->Type; + + switch (jvp->Type) { + case TYPE_STRG: + case TYPE_DTM: + jcol.Len = (int)strlen(bp->GetString(jvp)); + break; + case TYPE_INTG: + case TYPE_BINT: + jcol.Len = (int)strlen(bp->GetString(jvp, buf)); + break; + case TYPE_DBL: + case TYPE_FLOAT: + jcol.Len = (int)strlen(bp->GetString(jvp, buf)); + jcol.Scale = jvp->Nd; + break; + case TYPE_BOOL: + jcol.Len = 1; + break; + default: + jcol.Len = 0; + break; + } // endswitch Type + + jcol.Scale = jvp->Nd; + jcol.Cbn = jvp->Type == TYPE_NULL; + } else if (!jvp || bp->IsValueNull(jvp)) { + jcol.Type = TYPE_UNKNOWN; + jcol.Len = jcol.Scale = 0; + jcol.Cbn = true; + } else if (j < lvl && !Stringified(strfy, colname)) { + if (!fmt[bf]) + safe_strcat(fmt, sizeof(fmt), colname); + + p = fmt + strlen(fmt); + jsp = jvp; + + switch (jsp->Type) { + case TYPE_JOB: + job = jsp; + + for (PBPR jrp = bp->GetObject(job); jrp; jrp = bp->GetNext(jrp)) { + PCSZ k = bp->GetKey(jrp); + + if (*k != '$') { + n = sizeof(fmt) - strlen(fmt) - 1; + strncat(strncat(fmt, sep, n), k, n - strlen(sep)); + n = sizeof(colname) - strlen(colname) - 1; + strncat(strncat(colname, "_", n), k, n - 1); + } // endif Key + + if (Find(g, bp->GetVlp(jrp), k, j + 1)) + return true; + + *p = *pc = 0; + } // endfor jrp + + return false; + case TYPE_JAR: + jar = jsp; + + if (all || (tdp->Xcol && !stricmp(tdp->Xcol, key))) + ars = MY_MIN(bp->GetArraySize(jar), limit); + else + ars = MY_MIN(bp->GetArraySize(jar), 1); + + for (int k = 0; k < ars; k++) { + n = sizeof(fmt) - (strlen(fmt) + 1); + + if (!tdp->Xcol || stricmp(tdp->Xcol, key)) { + snprintf(buf, sizeof(buf), "%d", k); + + if (tdp->Uri) { + strncat(strncat(fmt, sep, n), buf, n - strlen(sep)); + } else { + strncat(strncat(fmt, "[", n), buf, n - 1); + strncat(fmt, "]", n - (strlen(buf) + 1)); + } // endif uri + + if (all) { + n = sizeof(colname) - (strlen(colname) + 1); + strncat(strncat(colname, "_", n), buf, n - 1); + } // endif all + + } else { + strncat(fmt, (tdp->Uri ? sep : "[*]"), n); + } + + if (Find(g, bp->GetArrayValue(jar, k), "", j)) + return true; + + *p = *pc = 0; + } // endfor k + + return false; + default: + snprintf(g->Message, sizeof(g->Message), "Logical error after %s", fmt); + return true; + } // endswitch Type + + } else if (lvl >= 0) { + if (Stringified(strfy, colname)) { + if (!fmt[bf]) + safe_strcat(fmt, sizeof(fmt), colname); + + safe_strcat(fmt, sizeof(fmt), ".*"); + } else if (JsonAllPath() && !fmt[bf]) + safe_strcat(fmt, sizeof(fmt), colname); + + jcol.Type = TYPE_STRG; + jcol.Len = sz; + jcol.Scale = 0; + jcol.Cbn = true; + } else + return false; + + AddColumn(g); + return false; +} // end of Find + +void BSONDISC::AddColumn(PGLOBAL g) +{ + bool b = fmt[bf] != 0; // True if formatted + + // Check whether this column was already found + for (jcp = fjcp; jcp; jcp = jcp->Next) + if (!strcmp(colname, jcp->Name)) + break; + + if (jcp) { + if (jcp->Type != jcol.Type) { + if (jcp->Type == TYPE_UNKNOWN || jcp->Type == TYPE_NULL) + jcp->Type = jcol.Type; + // else if (jcol.Type != TYPE_UNKNOWN && jcol.Type != TYPE_VOID) + // jcp->Type = TYPE_STRING; + else if (jcp->Type != TYPE_STRG) + switch (jcol.Type) { + case TYPE_STRG: + case TYPE_DBL: + jcp->Type = jcol.Type; + break; + case TYPE_BINT: + if (jcp->Type == TYPE_INTG || jcp->Type == TYPE_BOOL) + jcp->Type = jcol.Type; + + break; + case TYPE_INTG: + if (jcp->Type == TYPE_BOOL) + jcp->Type = jcol.Type; + + break; + default: + break; + } // endswith Type + + } // endif Type + + if (b && (!jcp->Fmt || strlen(jcp->Fmt) < strlen(fmt))) { + jcp->Fmt = PlugDup(g, fmt); + length[7] = MY_MAX(length[7], strlen(fmt)); + } // endif fmt + + jcp->Len = MY_MAX(jcp->Len, jcol.Len); + jcp->Scale = MY_MAX(jcp->Scale, jcol.Scale); + jcp->Cbn |= jcol.Cbn; + jcp->Found = true; + } else if (jcol.Type != TYPE_UNKNOWN || tdp->Accept) { + // New column + jcp = (PJCL)PlugSubAlloc(g, NULL, sizeof(JCOL)); + *jcp = jcol; + jcp->Cbn |= (i > 1); + jcp->Name = PlugDup(g, colname); + length[0] = MY_MAX(length[0], strlen(colname)); + + if (b) { + jcp->Fmt = PlugDup(g, fmt); + length[7] = MY_MAX(length[7], strlen(fmt)); + } else + jcp->Fmt = NULL; + + if (pjcp) { + jcp->Next = pjcp->Next; + pjcp->Next = jcp; + } else + fjcp = jcp; + + n++; + } // endif jcp + + if (jcp) + pjcp = jcp; + +} // end of AddColumn + +/* -------------------------- Class BTUTIL --------------------------- */ + +/***********************************************************************/ +/* Find the row in the tree structure. */ +/***********************************************************************/ +PBVAL BTUTIL::FindRow(PGLOBAL g) +{ + char *p, *objpath = PlugDup(g, Tp->Objname); + char *sep = (char*)(Tp->Sep == ':' ? ":[" : ".["); + bool bp = false, b = false; + PBVAL jsp = Tp->Row; + PBVAL val = NULL; + + for (; jsp && objpath; objpath = p, bp = b) { + if ((p = strpbrk(objpath + 1, sep))) { + b = (*p == '['); + *p++ = 0; + } // endif p + + if (!bp && *objpath != '[' && !IsNum(objpath)) { // objpass is a key + val = (jsp->Type == TYPE_JOB) ? + GetKeyValue(jsp, objpath) : NULL; + } else { + if (bp || *objpath == '[') { // Old style + if (objpath[strlen(objpath) - 1] != ']') { + snprintf(g->Message, sizeof(g->Message), "Invalid Table path %s", Tp->Objname); + return NULL; + } else if (!bp) + objpath++; + + } // endif bp + + val = (jsp->Type == TYPE_JAR) ? + GetArrayValue(jsp, atoi(objpath) - Tp->B) : NULL; + } // endif objpath + + // jsp = (val) ? val->GetJson() : NULL; + jsp = val; + } // endfor objpath + + if (jsp && jsp->Type != TYPE_JOB) { + if (jsp->Type == TYPE_JAR) { + jsp = GetArrayValue(jsp, Tp->B); + + if (jsp->Type != TYPE_JOB) + jsp = NULL; + + } else + jsp = NULL; + + } // endif Type + + return jsp; +} // end of FindRow + +/***********************************************************************/ +/* Parse the read line. */ +/***********************************************************************/ +PBVAL BTUTIL::ParseLine(PGLOBAL g, int prty, bool cma) +{ + pretty = prty; + comma = cma; + return ParseJson(g, Tp->To_Line, strlen(Tp->To_Line)); +} // end of ParseLine + +/***********************************************************************/ +/* Make the top tree from the object path. */ +/***********************************************************************/ +PBVAL BTUTIL::MakeTopTree(PGLOBAL g, int type) +{ + PBVAL top = NULL, val = NULL; + + if (Tp->Objname) { + if (!Tp->Row) { + // Parse and allocate Objpath item(s) + char *p, *objpath = PlugDup(g, Tp->Objname); + char *sep = (char*)(Tp->Sep == ':' ? ":[" : ".["); + int i; + bool bp = false, b = false; + PBVAL objp = NULL; + PBVAL arp = NULL; + + for (; objpath; objpath = p, bp = b) { + if ((p = strpbrk(objpath + 1, sep))) { + b = (*p == '['); + *p++ = 0; + } // endif p + + + if (!bp && *objpath != '[' && !IsNum(objpath)) { + // objpass is a key + objp = NewVal(TYPE_JOB); + + if (!top) + top = objp; + + if (val) + SetValueObj(val, objp); + + val = NewVal(); + SetKeyValue(objp, MOF(val), objpath); + } else { + if (bp || *objpath == '[') { + // Old style + if (objpath[strlen(objpath) - 1] != ']') { + snprintf(g->Message, sizeof(g->Message), "Invalid Table path %s", Tp->Objname); + return NULL; + } else if (!bp) + objpath++; + + } // endif bp + + if (!top) + top = NewVal(TYPE_JAR); + + if (val) + SetValueArr(val, arp); + + val = NewVal(); + i = atoi(objpath) - Tp->B; + SetArrayValue(arp, val, i); + } // endif objpath + + } // endfor p + + } // endif Val + + Tp->Row = val; + if (Tp->Row) Tp->Row->Type = type; + } else + top = Tp->Row = NewVal(type); + + return top; +} // end of MakeTopTree + +PSZ BTUTIL::SerialVal(PGLOBAL g, PBVAL vlp, int pretty) +{ + return Serialize(g, vlp, NULL, pretty); +} // en of SerialTop + +/* -------------------------- Class BCUTIL --------------------------- */ + +/***********************************************************************/ +/* SetValue: Set a value from a BVALUE contains. */ +/***********************************************************************/ +void BCUTIL::SetJsonValue(PGLOBAL g, PVAL vp, PBVAL jvp) +{ + if (jvp) { + vp->SetNull(false); + + if (Jb) { + vp->SetValue_psz(Serialize(g, jvp, NULL, 0)); + Jb = false; + } else switch (jvp->Type) { + case TYPE_STRG: + case TYPE_INTG: + case TYPE_BINT: + case TYPE_DBL: + case TYPE_DTM: + case TYPE_FLOAT: + switch (vp->GetType()) { + case TYPE_STRING: + case TYPE_DECIM: + vp->SetValue_psz(GetString(jvp)); + break; + case TYPE_INT: + case TYPE_SHORT: + case TYPE_TINY: + vp->SetValue(GetInteger(jvp)); + break; + case TYPE_BIGINT: + vp->SetValue(GetBigint(jvp)); + break; + case TYPE_DOUBLE: + vp->SetValue(GetDouble(jvp)); + + if (jvp->Type == TYPE_DBL || jvp->Type == TYPE_FLOAT) + vp->SetPrec(jvp->Nd); + + break; + case TYPE_DATE: + if (jvp->Type == TYPE_STRG) { + PSZ dat = GetString(jvp); + + if (!IsNum(dat)) { + if (!((DTVAL*)vp)->IsFormatted()) + ((DTVAL*)vp)->SetFormat(g, "YYYY-MM-DDThh:mm:ssZ", 20, 0); + + vp->SetValue_psz(dat); + } else + vp->SetValue(atoi(dat)); + + } else + vp->SetValue(GetInteger(jvp)); + + break; + default: + snprintf(G->Message, sizeof(G->Message), "Unsupported column type %d", vp->GetType()); + throw 888; + } // endswitch Type + + break; + case TYPE_BOOL: + if (vp->IsTypeNum()) + vp->SetValue(GetInteger(jvp) ? 1 : 0); + else + vp->SetValue_psz((PSZ)(GetInteger(jvp) ? "true" : "false")); + + break; + case TYPE_JAR: + case TYPE_JOB: + // SetJsonValue(g, vp, val->GetArray()->GetValue(0)); + vp->SetValue_psz(GetValueText(g, jvp, NULL)); + break; + default: + vp->Reset(); + vp->SetNull(true); + } // endswitch Type + + } else { + vp->Reset(); + vp->SetNull(true); + } // endif val + +} // end of SetJsonValue + +/***********************************************************************/ +/* MakeJson: Serialize the json item and set value to it. */ +/***********************************************************************/ +PBVAL BCUTIL::MakeBson(PGLOBAL g, PBVAL jsp, int n) +{ + PBVAL vlp, jvp = jsp; + + if (n < Cp->Nod - 1) { + if (jsp->Type == TYPE_JAR) { + int ars = GetArraySize(jsp); + PJNODE jnp = &Cp->Nodes[n]; + + jvp = NewVal(TYPE_JAR); + jnp->Op = OP_EQ; + + for (int i = 0; i < ars; i++) { + jnp->Rank = i; + vlp = GetRowValue(g, jsp, n); + AddArrayValue(jvp,DupVal(vlp)); + } // endfor i + + jnp->Op = OP_XX; + jnp->Rank = 0; + } else if (jsp->Type == TYPE_JOB) { + jvp = NewVal(TYPE_JOB); + + for (PBPR prp = GetObject(jsp); prp; prp = GetNext(prp)) { + vlp = GetRowValue(g, GetVlp(prp), n + 1); + SetKeyValue(jvp, vlp, MZP(prp->Key)); + } // endfor prp + + } // endif Type + + } // endif's + + Jb = true; + return jvp; +} // end of MakeBson + +/***********************************************************************/ +/* GetRowValue: */ +/***********************************************************************/ +PBVAL BCUTIL::GetRowValue(PGLOBAL g, PBVAL row, int i) +{ + int nod = Cp->Nod; + JNODE *nodes = Cp->Nodes; + PBVAL arp; + PBVAL bvp = NULL; + + for (; i < nod && row; i++) { + if (nodes[i].Op == OP_NUM) { + bvp = NewVal(TYPE_INT); + bvp->N = (row->Type == TYPE_JAR) ? GetSize(row) : 1; + return(bvp); + } else if (nodes[i].Op == OP_XX) { + return MakeBson(g, row, i); + } else switch (row->Type) { + case TYPE_JOB: + if (!nodes[i].Key) { + // Expected Array was not there, wrap the value + if (i < nod - 1) + continue; + else + bvp = row; + + } else + bvp = GetKeyValue(row, nodes[i].Key); + + break; + case TYPE_JAR: + arp = row; + + if (!nodes[i].Key) { + if (nodes[i].Op == OP_EQ) + bvp = GetArrayValue(arp, nodes[i].Rank); + else if (nodes[i].Op == OP_EXP) + return NewVal(ExpandArray(g, arp, i)); + else + return NewVal(CalculateArray(g, arp, i)); + + } else { + // Unexpected array, unwrap it as [0] + bvp = GetArrayValue(arp, 0); + i--; + } // endif's + + break; + case TYPE_JVAL: + bvp = row; + break; + default: + snprintf(g->Message, sizeof(g->Message), "Invalid row JSON type %d", row->Type); + bvp = NULL; + } // endswitch Type + + if (i < nod - 1) + row = bvp; + + } // endfor i + + return bvp; +} // end of GetRowValue + +/***********************************************************************/ +/* GetColumnValue: */ +/***********************************************************************/ +PVAL BCUTIL::GetColumnValue(PGLOBAL g, PBVAL row, int i) +{ + PVAL value = Cp->Value; + PBVAL bvp = GetRowValue(g, row, i); + + SetJsonValue(g, value, bvp); + return value; +} // end of GetColumnValue + +/***********************************************************************/ +/* ExpandArray: */ +/***********************************************************************/ +PVAL BCUTIL::ExpandArray(PGLOBAL g, PBVAL arp, int n) +{ + int nod = Cp->Nod, ars = MY_MIN(Tp->Limit, GetArraySize(arp)); + JNODE *nodes = Cp->Nodes; + PVAL value = Cp->Value; + PBVAL bvp; + BVAL bval; + + if (!ars) { + value->Reset(); + value->SetNull(true); + Tp->NextSame = 0; + return value; + } // endif ars + + if (!(bvp = GetArrayValue(arp, (nodes[n].Rx = nodes[n].Nx)))) { + safe_strcpy(g->Message, sizeof(g->Message), "Logical error expanding array"); + throw 666; + } // endif jvp + + if (n < nod - 1 && IsJson(bvp)) { + SetValue(&bval, GetColumnValue(g, bvp, n + 1)); + bvp = &bval; + } // endif n + + if (n >= Tp->NextSame) { + if (++nodes[n].Nx == ars) { + nodes[n].Nx = 0; + Cp->Xnod = 0; + } else + Cp->Xnod = n; + + Tp->NextSame = Cp->Xnod; + } // endif NextSame + + SetJsonValue(g, value, bvp); + return value; +} // end of ExpandArray + +/***********************************************************************/ +/* CalculateArray: */ +/***********************************************************************/ +PVAL BCUTIL::CalculateArray(PGLOBAL g, PBVAL arp, int n) +{ + int i, ars, nv = 0, nextsame = Tp->NextSame; + bool err; + int nod = Cp->Nod; + JNODE *nodes = Cp->Nodes; + OPVAL op = nodes[n].Op; + PVAL val[2], vp = nodes[n].Valp, mulval = Cp->MulVal; + PBVAL jvrp, jvp; + BVAL jval; + + vp->Reset(); + ars = MY_MIN(Tp->Limit, GetArraySize(arp)); + xtrc(1,"CalculateArray: size=%d op=%d nextsame=%d\n", ars, op, nextsame); + + for (i = 0; i < ars; i++) { + jvrp = GetArrayValue(arp, i); + xtrc(1, "i=%d nv=%d\n", i, nv); + + if (!IsValueNull(jvrp) || (op == OP_CNC && GetJsonNull())) do { + if (IsValueNull(jvrp)) { + SetString(jvrp, PlugDup(G, GetJsonNull())); + jvp = jvrp; + } else if (n < nod - 1 && IsJson(jvrp)) { + Tp->NextSame = nextsame; + SetValue(&jval, GetColumnValue(g, jvrp, n + 1)); + jvp = &jval; + } else + jvp = jvrp; + + xtrc(1, "jvp=%s null=%d\n", GetString(jvp), IsValueNull(jvp) ? 1 : 0); + + if (!nv++) { + SetJsonValue(g, vp, jvp); + continue; + } else + SetJsonValue(g, mulval, jvp); + + if (!mulval->IsNull()) { + switch (op) { + case OP_CNC: + if (nodes[n].CncVal) { + val[0] = nodes[n].CncVal; + err = vp->Compute(g, val, 1, op); + } // endif CncVal + + val[0] = mulval; + err = vp->Compute(g, val, 1, op); + break; + // case OP_NUM: + case OP_SEP: + val[0] = nodes[n].Valp; + val[1] = mulval; + err = vp->Compute(g, val, 2, OP_ADD); + break; + default: + val[0] = nodes[n].Valp; + val[1] = mulval; + err = vp->Compute(g, val, 2, op); + } // endswitch Op + + if (err) + vp->Reset(); + + if (trace(1)) { + char buf(32); + + htrc("vp='%s' err=%d\n", + vp->GetCharString(&buf), err ? 1 : 0); + + } // endif trace + + } // endif Null + + } while (Tp->NextSame > nextsame); + + } // endfor i + + if (op == OP_SEP) { + // Calculate average + mulval->SetValue(nv); + val[0] = vp; + val[1] = mulval; + + if (vp->Compute(g, val, 2, OP_DIV)) + vp->Reset(); + + } // endif Op + + Tp->NextSame = nextsame; + return vp; +} // end of CalculateArray + +/***********************************************************************/ +/* GetRow: Get the object containing this column. */ +/***********************************************************************/ +PBVAL BCUTIL::GetRow(PGLOBAL g) +{ + int nod = Cp->Nod; + JNODE *nodes = Cp->Nodes; + PBVAL val = NULL; + PBVAL arp; + PBVAL nwr, row = Tp->Row; + + for (int i = 0; i < nod && row; i++) { + if (i < nod-1 && nodes[i+1].Op == OP_XX) + break; + else switch (row->Type) { + case TYPE_JOB: + if (!nodes[i].Key) + // Expected Array was not there, wrap the value + continue; + + val = GetKeyValue(row, nodes[i].Key); + break; + case TYPE_JAR: + arp = row; + + if (!nodes[i].Key) { + if (nodes[i].Op == OP_EQ) + val = GetArrayValue(arp, nodes[i].Rank); + else + val = GetArrayValue(arp, nodes[i].Rx); + + } else { + // Unexpected array, unwrap it as [0] + val = GetArrayValue(arp, 0); + i--; + } // endif Nodes + + break; + case TYPE_JVAL: + val = row; + break; + default: + snprintf(g->Message, sizeof(g->Message), "Invalid row JSON type %d", row->Type); + val = NULL; + } // endswitch Type + + if (val) { + row = val; + } else { + // Construct missing objects + for (i++; row && i < nod; i++) { + int type; + + if (nodes[i].Op == OP_XX) + break; + else if (!nodes[i].Key) + // Construct intermediate array + type = TYPE_JAR; + else + type = TYPE_JOB; + + if (row->Type == TYPE_JOB) { + nwr = AddPair(row, nodes[i - 1].Key, type); + } else if (row->Type == TYPE_JAR) { + AddArrayValue(row, (nwr = NewVal(type))); + } else { + safe_strcpy(g->Message, sizeof(g->Message), "Wrong type when writing new row"); + nwr = NULL; + } // endif's + + row = nwr; + } // endfor i + + break; + } // endelse + + } // endfor i + + return row; +} // end of GetRow + + +/* -------------------------- Class BSONDEF -------------------------- */ + +BSONDEF::BSONDEF(void) +{ + Jmode = MODE_OBJECT; + Objname = NULL; + Xcol = NULL; + Pretty = 2; + Limit = 1; + Base = 0; + Strict = false; + Sep = '.'; + Uri = NULL; + Collname = Options = Filter = NULL; + Pipe = false; + Driver = NULL; + Version = 0; + Wrapname = NULL; +} // end of BSONDEF constructor + +/***********************************************************************/ +/* DefineAM: define specific AM block values. */ +/***********************************************************************/ +bool BSONDEF::DefineAM(PGLOBAL g, LPCSTR am, int poff) +{ + G = g; + Schema = GetStringCatInfo(g, "DBname", Schema); + Jmode = (JMODE)GetIntCatInfo("Jmode", MODE_OBJECT); + + if ((Objname = GetStringCatInfo(g, "Object", NULL))) { + if (*Objname == '$') Objname++; + if (*Objname == '.') Objname++; + } // endif Objname + + Xcol = GetStringCatInfo(g, "Expand", NULL); + Pretty = GetIntCatInfo("Pretty", 2); + Limit = GetIntCatInfo("Limit", 50); + Base = GetIntCatInfo("Base", 0) ? 1 : 0; + Sep = *GetStringCatInfo(g, "Separator", "."); + Accept = GetBoolCatInfo("Accept", false); + + // Don't use url as MONGO uri when called from REST + if (stricmp(am, "REST") && (Uri = GetStringCatInfo(g, "Connect", NULL))) { +#if defined(JAVA_SUPPORT) || defined(CMGO_SUPPORT) + Collname = GetStringCatInfo(g, "Name", + (Catfunc & (FNC_TABLE | FNC_COL)) ? NULL : Name); + Collname = GetStringCatInfo(g, "Tabname", Collname); + Options = GetStringCatInfo(g, "Colist", Xcol ? "all" : NULL); + Filter = GetStringCatInfo(g, "Filter", NULL); + Pipe = GetBoolCatInfo("Pipeline", false); + Driver = GetStringCatInfo(g, "Driver", NULL); + Version = GetIntCatInfo("Version", 3); + Pretty = 0; +#if defined(JAVA_SUPPORT) + if (Version == 2) + Wrapname = GetStringCatInfo(g, "Wrapper", "Mongo2Interface"); + else + Wrapname = GetStringCatInfo(g, "Wrapper", "Mongo3Interface"); +#endif // JAVA_SUPPORT +#else // !MONGO_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "MONGO"); + return true; +#endif // !MONGO_SUPPORT + } // endif Uri + + return DOSDEF::DefineAM(g, (Uri ? "XMGO" : "DOS"), poff); +} // end of DefineAM + +/***********************************************************************/ +/* GetTable: makes a new Table Description Block. */ +/***********************************************************************/ +PTDB BSONDEF::GetTable(PGLOBAL g, MODE m) +{ + if (trace(1)) + htrc("BSON GetTable Pretty=%d Uri=%s\n", Pretty, SVP(Uri)); + + if (Catfunc == FNC_COL) + return new(g)TDBBCL(this); + + PTDBASE tdbp; + PTXF txfp = NULL; + + // JSN not used for pretty=1 for insert or delete + if (Pretty <= 0 || (Pretty == 1 && (m == MODE_READ || m == MODE_UPDATE))) { + USETEMP tmp = UseTemp(); + bool map = Mapped && Pretty >= 0 && m != MODE_INSERT && + !(tmp != TMP_NO && m == MODE_UPDATE) && + !(tmp == TMP_FORCE && (m == MODE_UPDATE || m == MODE_DELETE)); + + if (Lrecl) { + // Allocate the parse work memory + G = PlugInit(NULL, (size_t)Lrecl * (Pretty < 0 ? 3 : 5)); + } else { + safe_strcpy(g->Message, sizeof(g->Message), "LRECL is not defined"); + return NULL; + } // endif Lrecl + + if (Pretty < 0) { // BJsonfile + txfp = new(g) BINFAM(this); + } else if (Uri) { + if (Driver && toupper(*Driver) == 'C') { +#if defined(CMGO_SUPPORT) + txfp = new(g) CMGFAM(this); +#else + snprintf(g->Message, sizeof(g->Message), "Mongo %s Driver not available", "C"); + return NULL; +#endif + } else if (Driver && toupper(*Driver) == 'J') { +#if defined(JAVA_SUPPORT) + txfp = new(g) JMGFAM(this); +#else + snprintf(g->Message, sizeof(g->Message), "Mongo %s Driver not available", "Java"); + return NULL; +#endif + } else { // Driver not specified +#if defined(CMGO_SUPPORT) + txfp = new(g) CMGFAM(this); +#elif defined(JAVA_SUPPORT) + txfp = new(g) JMGFAM(this); +#else // !MONGO_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "MONGO"); + return NULL; +#endif // !MONGO_SUPPORT + } // endif Driver + + Pretty = 4; // Not a file + } else if (Zipped) { +#if defined(ZIP_SUPPORT) + if (m == MODE_READ || m == MODE_ANY || m == MODE_ALTER) { + txfp = new(g) UNZFAM(this); + } else if (m == MODE_INSERT) { + txfp = new(g) ZIPFAM(this); + } else { + safe_strcpy(g->Message, sizeof(g->Message), "UPDATE/DELETE not supported for ZIP"); + return NULL; + } // endif's m +#else // !ZIP_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "ZIP"); + return NULL; +#endif // !ZIP_SUPPORT + } else if (Compressed) { +#if defined(GZ_SUPPORT) + if (Compressed == 1) + txfp = new(g) GZFAM(this); + else + txfp = new(g) ZLBFAM(this); +#else // !GZ_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "GZ"); + return NULL; +#endif // !GZ_SUPPORT + } else if (map) { + txfp = new(g) MAPFAM(this); + } else + txfp = new(g) DOSFAM(this); + + // Txfp must be set for TDBBSN + tdbp = new(g) TDBBSN(g, this, txfp); + } else { + if (Zipped) { +#if defined(ZIP_SUPPORT) + if (m == MODE_READ || m == MODE_ANY || m == MODE_ALTER) { + txfp = new(g) UNZFAM(this); + } else if (m == MODE_INSERT) { + safe_strcpy(g->Message, sizeof(g->Message), "INSERT supported only for zipped JSON when pretty=0"); + return NULL; + } else { + safe_strcpy(g->Message, sizeof(g->Message), "UPDATE/DELETE not supported for ZIP"); + return NULL; + } // endif's m +#else // !ZIP_SUPPORT + snprintf(g->Message, sizeof(g->Message), MSG(NO_FEAT_SUPPORT), "ZIP"); + return NULL; +#endif // !ZIP_SUPPORT + } else + txfp = new(g) MAPFAM(this); + + tdbp = new(g) TDBBSON(g, this, txfp); + } // endif Pretty + + if (Multiple) + tdbp = new(g) TDBMUL(tdbp); + + return tdbp; +} // end of GetTable + +/* --------------------------- Class TDBBSN -------------------------- */ + +/***********************************************************************/ +/* Implementation of the TDBBSN class (Pretty < 2) */ +/***********************************************************************/ +TDBBSN::TDBBSN(PGLOBAL g, PBDEF tdp, PTXF txfp) : TDBDOS(tdp, txfp) +{ + Bp = new(g) BTUTIL(tdp->G, this); + Top = NULL; + Row = NULL; + Colp = NULL; + + if (tdp) { + Jmode = tdp->Jmode; + Objname = tdp->Objname; + Xcol = tdp->Xcol; + Limit = tdp->Limit; + Pretty = tdp->Pretty; + B = tdp->Base ? 1 : 0; + Sep = tdp->Sep; + Strict = tdp->Strict; + } else { + Jmode = MODE_OBJECT; + Objname = NULL; + Xcol = NULL; + Limit = 1; + Pretty = 0; + B = 0; + Sep = '.'; + Strict = false; + } // endif tdp + + Fpos = -1; + N = M = 0; + NextSame = 0; + SameRow = 0; + Xval = -1; + Comma = false; + Bp->SetPretty(Pretty); +} // end of TDBBSN standard constructor + +TDBBSN::TDBBSN(TDBBSN* tdbp) : TDBDOS(NULL, tdbp) +{ + Bp = tdbp->Bp; + Top = tdbp->Top; + Row = tdbp->Row; + Colp = tdbp->Colp; + Jmode = tdbp->Jmode; + Objname = tdbp->Objname; + Xcol = tdbp->Xcol; + Fpos = tdbp->Fpos; + N = tdbp->N; + M = tdbp->M; + Limit = tdbp->Limit; + NextSame = tdbp->NextSame; + SameRow = tdbp->SameRow; + Xval = tdbp->Xval; + B = tdbp->B; + Sep = tdbp->Sep; + Pretty = tdbp->Pretty; + Strict = tdbp->Strict; + Comma = tdbp->Comma; +} // end of TDBBSN copy constructor + +// Used for update +PTDB TDBBSN::Clone(PTABS t) +{ + PTDB tp; + PBSCOL cp1, cp2; + PGLOBAL g = t->G; + + tp = new(g) TDBBSN(this); + + for (cp1 = (PBSCOL)Columns; cp1; cp1 = (PBSCOL)cp1->GetNext()) { + cp2 = new(g) BSONCOL(cp1, tp); // Make a copy + NewPointer(t, cp1, cp2); + } // endfor cp1 + + return tp; +} // end of Clone + +/***********************************************************************/ +/* Allocate JSN column description block. */ +/***********************************************************************/ +PCOL TDBBSN::MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n) +{ + PBSCOL colp = new(g) BSONCOL(g, cdp, this, cprec, n); + + return (colp->ParseJpath(g)) ? NULL : colp; +} // end of MakeCol + +/***********************************************************************/ +/* InsertSpecialColumn: Put a special column ahead of the column list.*/ +/***********************************************************************/ +PCOL TDBBSN::InsertSpecialColumn(PCOL colp) +{ + if (!colp->IsSpecial()) + return NULL; + + //if (Xcol && ((SPCBLK*)colp)->GetRnm()) + // colp->SetKey(0); // Rownum is no more a key + + colp->SetNext(Columns); + Columns = colp; + return colp; +} // end of InsertSpecialColumn + +/***********************************************************************/ +/* JSON Cardinality: returns table size in number of rows. */ +/***********************************************************************/ +int TDBBSN::Cardinality(PGLOBAL g) +{ + if (!g) + return 0; + else if (Cardinal < 0) { + Cardinal = TDBDOS::Cardinality(g); + + } // endif Cardinal + + return Cardinal; +} // end of Cardinality + +/***********************************************************************/ +/* JSON GetMaxSize: returns file size estimate in number of lines. */ +/***********************************************************************/ +int TDBBSN::GetMaxSize(PGLOBAL g) +{ + if (MaxSize < 0) + MaxSize = TDBDOS::GetMaxSize(g) * ((Xcol) ? Limit : 1); + + return MaxSize; +} // end of GetMaxSize + +/***********************************************************************/ +/* JSON EstimatedLength. Returns an estimated minimum line length. */ +/***********************************************************************/ +int TDBBSN::EstimatedLength(void) +{ + if (AvgLen <= 0) + return (Lrecl ? Lrecl : 1024) / 8; // TODO: make it better + else + return AvgLen; + +} // end of Estimated Length + +/***********************************************************************/ +/* OpenDB: Data Base open routine for BSN access method. */ +/***********************************************************************/ +bool TDBBSN::OpenDB(PGLOBAL g) +{ + TUSE use = Use; + + if (Use == USE_OPEN) { + /*******************************************************************/ + /* Table already open replace it at its beginning. ??? */ + /*******************************************************************/ + Fpos = -1; + NextSame = 0; + SameRow = 0; + } // endif Use + + /*********************************************************************/ + /* Open according to logical input/output mode required. */ + /*********************************************************************/ + if (TDBDOS::OpenDB(g)) + return true; + + if (use == USE_OPEN) + return false; + + if (Pretty < 0) { + /*********************************************************************/ + /* Binary BJSON table. */ + /*********************************************************************/ + xtrc(1, "JSN OpenDB: tdbp=%p tdb=R%d use=%d mode=%d\n", + this, Tdb_No, Use, Mode); + + // Lrecl is Ok + size_t linelen = Lrecl; + MODE mode = Mode; + + // Buffer must be allocated in G->Sarea + Mode = MODE_ANY; + Txfp->AllocateBuffer(Bp->G); + Mode = mode; + + if (Mode == MODE_INSERT) + Bp->SubSet(true); + else + Bp->MemSave(); + + To_Line = Txfp->GetBuf(); + memset(To_Line, 0, linelen); + xtrc(1, "OpenJSN: R%hd mode=%d To_Line=%p\n", Tdb_No, Mode, To_Line); + } // endif Pretty + + /***********************************************************************/ + /* First opening. */ + /***********************************************************************/ + if (Mode == MODE_INSERT) { + int type; + + switch (Jmode) { + case MODE_OBJECT: type = TYPE_JOB; break; + case MODE_ARRAY: type = TYPE_JAR; break; + case MODE_VALUE: type = TYPE_JVAL; break; + default: + snprintf(g->Message, sizeof(g->Message), "Invalid Jmode %d", Jmode); + return true; + } // endswitch Jmode + + Top = Bp->MakeTopTree(g, type); + Bp->MemSave(); + } // endif Mode + + if (Xcol) + To_Filter = NULL; // Not compatible + + return false; +} // end of OpenDB + +/***********************************************************************/ +/* SkipHeader: Physically skip first header line if applicable. */ +/* This is called from TDBDOS::OpenDB and must be executed before */ +/* Kindex construction if the file is accessed using an index. */ +/***********************************************************************/ +bool TDBBSN::SkipHeader(PGLOBAL g) +{ + int len = GetFileLength(g); + bool rc = false; + +#if defined(_DEBUG) + if (len < 0) + return true; +#endif // _DEBUG + + if (Pretty == 1) { + if (Mode == MODE_INSERT || Mode == MODE_DELETE) { + // Mode Insert and delete are no more handled here + DBUG_ASSERT(false); + } else if (len > 0) // !Insert && !Delete + rc = (Txfp->SkipRecord(g, false) == RC_FX || Txfp->RecordPos(g)); + + } // endif Pretty + + return rc; +} // end of SkipHeader + +/***********************************************************************/ +/* ReadDB: Data Base read routine for JSN access method. */ +/***********************************************************************/ +int TDBBSN::ReadDB(PGLOBAL g) +{ + int rc; + + N++; + + if (NextSame) { + SameRow = NextSame; + NextSame = 0; + M++; + return RC_OK; + } else if ((rc = TDBDOS::ReadDB(g)) == RC_OK) { + if (!IsRead() && ((rc = ReadBuffer(g)) != RC_OK)) + return rc; // Deferred reading failed + + if (Pretty >= 0) { + // Recover the memory used for parsing + Bp->SubSet(); + + if ((Row = Bp->ParseLine(g, Pretty, Comma))) { + Top = Row; + Row = Bp->FindRow(g); + SameRow = 0; + Fpos++; + M = 1; + rc = RC_OK; + } else if (Pretty != 1 || strcmp(To_Line, "]")) { + Bp->GetMsg(g); + rc = RC_FX; + } else + rc = RC_EF; + + } else { // Here we get a movable Json binary tree + Bp->MemSet(((BINFAM*)Txfp)->Recsize); // Useful when updating + Row = Top = (PBVAL)To_Line; + Row = Bp->FindRow(g); + SameRow = 0; + Fpos++; + M = 1; + rc = RC_OK; + } // endif Pretty + + } // endif ReadDB + + return rc; +} // end of ReadDB + +/***********************************************************************/ +/* PrepareWriting: Prepare the line for WriteDB. */ +/***********************************************************************/ +bool TDBBSN::PrepareWriting(PGLOBAL g) +{ + if (Pretty >= 0) { + PSZ s; + +// if (!(Top = Bp->MakeTopTree(g, Row->Type))) +// return true; + + if ((s = Bp->SerialVal(g, Top, Pretty))) { + if (Comma) + strcat(s, ","); + + if ((signed)strlen(s) > Lrecl) { + safe_strcpy(To_Line, Lrecl, s); + snprintf(g->Message, sizeof(g->Message), "Line truncated (lrecl=%d)", Lrecl); + return PushWarning(g, this); + } else + strcpy(To_Line, s); + + return false; + } else + return true; + } else + ((BINFAM*)Txfp)->Recsize = ((size_t)PlugSubAlloc(Bp->G, NULL, 0) + - (size_t)To_Line); + return false; +} // end of PrepareWriting + +/***********************************************************************/ +/* WriteDB: Data Base write routine for JSON access method. */ +/***********************************************************************/ +int TDBBSN::WriteDB(PGLOBAL g) { + int rc = TDBDOS::WriteDB(g); + + Bp->SubSet(); + Bp->Clear(Row); + return rc; +} // end of WriteDB + +/***********************************************************************/ +/* Data Base close routine for JSON access method. */ +/***********************************************************************/ +void TDBBSN::CloseDB(PGLOBAL g) +{ + TDBDOS::CloseDB(g); + Bp->G = PlugExit(Bp->G); +} // end of CloseDB + +/* ---------------------------- BSONCOL ------------------------------ */ + +/***********************************************************************/ +/* BSONCOL public constructor. */ +/***********************************************************************/ +BSONCOL::BSONCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i) + : DOSCOL(g, cdp, tdbp, cprec, i, "DOS") +{ + Tbp = (TDBBSN*)(tdbp->GetOrig() ? tdbp->GetOrig() : tdbp); + Cp = new(g) BCUTIL(((PBDEF)Tbp->To_Def)->G, this, Tbp); + Jpath = cdp->GetFmt(); + MulVal = NULL; + Nodes = NULL; + Nod = 0; + Sep = Tbp->Sep; + Xnod = -1; + Xpd = false; + Parsed = false; + Warned = false; + Sgfy = false; +} // end of BSONCOL constructor + +/***********************************************************************/ +/* BSONCOL constructor used for copying columns. */ +/* tdbp is the pointer to the new table descriptor. */ +/***********************************************************************/ +BSONCOL::BSONCOL(BSONCOL* col1, PTDB tdbp) : DOSCOL(col1, tdbp) +{ + Tbp = col1->Tbp; + Cp = col1->Cp; + Jpath = col1->Jpath; + MulVal = col1->MulVal; + Nodes = col1->Nodes; + Nod = col1->Nod; + Sep = col1->Sep; + Xnod = col1->Xnod; + Xpd = col1->Xpd; + Parsed = col1->Parsed; + Warned = col1->Warned; + Sgfy = col1->Sgfy; +} // end of BSONCOL copy constructor + +/***********************************************************************/ +/* SetBuffer: prepare a column block for write operation. */ +/***********************************************************************/ +bool BSONCOL::SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check) +{ + if (DOSCOL::SetBuffer(g, value, ok, check)) + return true; + + // Parse the json path + if (ParseJpath(g)) + return true; + + Tbp = (TDBBSN*)To_Tdb; + return false; +} // end of SetBuffer + +/***********************************************************************/ +/* Check whether this object is expanded. */ +/***********************************************************************/ +bool BSONCOL::CheckExpand(PGLOBAL g, int i, PSZ nm, bool b) +{ + if ((Tbp->Xcol && nm && !strcmp(nm, Tbp->Xcol) && + (Tbp->Xval < 0 || Tbp->Xval == i)) || Xpd) { + Xpd = true; // Expandable object + Nodes[i].Op = OP_EXP; + } else if (b) { + safe_strcpy(g->Message, sizeof(g->Message), "Cannot expand more than one branch"); + return true; + } // endif Xcol + + return false; +} // end of CheckExpand + +/***********************************************************************/ +/* Analyse array processing options. */ +/***********************************************************************/ +bool BSONCOL::SetArrayOptions(PGLOBAL g, char* p, int i, PSZ nm) +{ + int n; + bool dg = true, b = false; + PJNODE jnp = &Nodes[i]; + + //if (*p == '[') p++; // Old syntax .[ or :[ + n = (int)strlen(p); + + if (*p) { + if (p[n - 1] == ']') { + p[--n] = 0; + } else if (!IsNum(p)) { + // Wrong array specification + snprintf(g->Message, sizeof(g->Message), "Invalid array specification %s for %s", p, Name); + return true; + } // endif p + + } else + b = true; + + // To check whether a numeric Rank was specified + dg = IsNum(p); + + if (!n) { + // Default specifications + if (CheckExpand(g, i, nm, false)) + return true; + else if (jnp->Op != OP_EXP) { + if (b) { + // Return 1st value (B is the index base) + jnp->Rank = Tbp->B; + jnp->Op = OP_EQ; + } else if (!Value->IsTypeNum()) { + jnp->CncVal = AllocateValue(g, (void*)", ", TYPE_STRING); + jnp->Op = OP_CNC; + } else + jnp->Op = OP_ADD; + + } // endif OP + + } else if (dg) { + // Return nth value + jnp->Rank = atoi(p) - Tbp->B; + jnp->Op = OP_EQ; + } else if (n == 1) { + // Set the Op value; + if (Sep == ':') + switch (*p) { + case '*': *p = 'x'; break; + case 'x': + case 'X': *p = '*'; break; // Expand this array + default: break; + } // endswitch p + + switch (*p) { + case '+': jnp->Op = OP_ADD; break; + case 'x': jnp->Op = OP_MULT; break; + case '>': jnp->Op = OP_MAX; break; + case '<': jnp->Op = OP_MIN; break; + case '!': jnp->Op = OP_SEP; break; // Average + case '#': jnp->Op = OP_NUM; break; + case '*': // Expand this array + if (!Tbp->Xcol && nm) { + Xpd = true; + jnp->Op = OP_EXP; + Tbp->Xval = i; + Tbp->Xcol = nm; + } else if (CheckExpand(g, i, nm, true)) + return true; + + break; + default: + snprintf(g->Message, sizeof(g->Message), + "Invalid function specification %c for %s", *p, Name); + return true; + } // endswitch *p + + } else if (*p == '"' && p[n - 1] == '"') { + // This is a concat specification + jnp->Op = OP_CNC; + + if (n > 2) { + // Set concat intermediate string + p[n - 1] = 0; + jnp->CncVal = AllocateValue(g, p + 1, TYPE_STRING); + } // endif n + + } else { + snprintf(g->Message, sizeof(g->Message), "Wrong array specification for %s", Name); + return true; + } // endif's + + // For calculated arrays, a local Value must be used + switch (jnp->Op) { + case OP_NUM: + jnp->Valp = AllocateValue(g, TYPE_INT); + break; + case OP_ADD: + case OP_MULT: + case OP_SEP: + if (!IsTypeChar(Buf_Type)) + jnp->Valp = AllocateValue(g, Buf_Type, 0, GetPrecision()); + else + jnp->Valp = AllocateValue(g, TYPE_DOUBLE, 0, 2); + + break; + case OP_MIN: + case OP_MAX: + jnp->Valp = AllocateValue(g, Buf_Type, Long, GetPrecision()); + break; + case OP_CNC: + if (IsTypeChar(Buf_Type)) + jnp->Valp = AllocateValue(g, TYPE_STRING, Long, GetPrecision()); + else + jnp->Valp = AllocateValue(g, TYPE_STRING, 512); + + break; + default: + break; + } // endswitch Op + + if (jnp->Valp) + MulVal = AllocateValue(g, jnp->Valp); + + return false; +} // end of SetArrayOptions + +/***********************************************************************/ +/* Parse the eventual passed Jpath information. */ +/* This information can be specified in the Fieldfmt column option */ +/* when creating the table. It permits to indicate the position of */ +/* the node corresponding to that column. */ +/***********************************************************************/ +bool BSONCOL::ParseJpath(PGLOBAL g) +{ + char* p, * p1 = NULL, * p2 = NULL, * pbuf = NULL; + int i; + bool a; + + if (Parsed) + return false; // Already done + else if (InitValue(g)) + return true; + else if (!Jpath) + Jpath = Name; + + if (To_Tdb->GetOrig()) { + // This is an updated column, get nodes from origin + for (PBSCOL colp = (PBSCOL)Tbp->GetColumns(); colp; + colp = (PBSCOL)colp->GetNext()) + if (!stricmp(Name, colp->GetName())) { + Nod = colp->Nod; + Nodes = colp->Nodes; + Xpd = colp->Xpd; + goto fin; + } // endif Name + + snprintf(g->Message, sizeof(g->Message), "Cannot parse updated column %s", Name); + return true; + } // endif To_Orig + + pbuf = PlugDup(g, Jpath); + if (*pbuf == '$') pbuf++; + if (*pbuf == Sep) pbuf++; + if (*pbuf == '[') p1 = pbuf++; + + // Estimate the required number of nodes + for (i = 0, p = pbuf; (p = NextChr(p, Sep)); i++, p++) + Nod++; // One path node found + + Nodes = (PJNODE)PlugSubAlloc(g, NULL, (++Nod) * sizeof(JNODE)); + memset(Nodes, 0, (Nod) * sizeof(JNODE)); + + // Analyze the Jpath for this column + for (i = 0, p = pbuf; p && i < Nod; i++, p = (p2 ? p2 : NULL)) { + a = (p1 != NULL); + p1 = strchr(p, '['); + p2 = strchr(p, Sep); + + if (!p2) + p2 = p1; + else if (p1) { + if (p1 < p2) + p2 = p1; + else if (p1 == p2 + 1) + *p2++ = 0; // Old syntax .[ or :[ + else + p1 = NULL; + + } // endif p1 + + if (p2) + *p2++ = 0; + + // Jpath must be explicit + if (a || *p == 0 || *p == '[' || IsNum(p)) { + // Analyse intermediate array processing + if (SetArrayOptions(g, p, i, Nodes[i - 1].Key)) + return true; + else if (Xpd && Tbp->Mode == MODE_DELETE) { + safe_strcpy(g->Message, sizeof(g->Message), "Cannot delete expanded columns"); + return true; + } // endif Xpd + + } else if (*p == '*') { + // Return JSON + Nodes[i].Op = OP_XX; + } else { + Nodes[i].Key = p; + Nodes[i].Op = OP_EXIST; + } // endif's + + } // endfor i, p + + Nod = i; + +fin: + MulVal = AllocateValue(g, Value); + Parsed = true; + return false; +} // end of ParseJpath + +/***********************************************************************/ +/* Get Jpath converted to Mongo path. */ +/***********************************************************************/ +PSZ BSONCOL::GetJpath(PGLOBAL g, bool proj) +{ + if (Jpath) { + char* p1, * p2, * mgopath; + int i = 0; + + if (strcmp(Jpath, "*")) { + p1 = Jpath; + if (*p1 == '$') p1++; + if (*p1 == '.') p1++; + mgopath = PlugDup(g, p1); + } else { + Sgfy = true; + return NULL; + } // endif + + for (p1 = p2 = mgopath; *p1; p1++) + { + if (i) { // Inside [] + if (isdigit(*p1)) { + if (!proj) + *p2++ = *p1; + + } else if (*p1 == ']' && i == 1) { + if (proj && p1[1] == '.') + p1++; + + i = 0; + } else if (*p1 == '.' && i == 2) { + if (!proj) + *p2++ = '.'; + + i = 0; + } else if (!proj) + return NULL; + + } else switch (*p1) { + case ':': + case '.': + if (isdigit(p1[1])) + i = 2; + + *p2++ = '.'; + break; + case '[': + if (*(p2 - 1) != '.') + *p2++ = '.'; + + i = 1; + break; + case '*': + if (*(p2 - 1) == '.' && !*(p1 + 1)) { + p2--; // Suppress last :* + Sgfy = true; + break; + } // endif p2 + /* fall through */ + default: + *p2++ = *p1; + break; + } // endswitch p1; + } + + if (*(p2 - 1) == '.') + p2--; + + *p2 = 0; + return mgopath; + } else + return NULL; + +} // end of GetJpath + +/***********************************************************************/ +/* ReadColumn: */ +/***********************************************************************/ +void BSONCOL::ReadColumn(PGLOBAL g) +{ + if (!Tbp->SameRow || Xnod >= Tbp->SameRow) + Value->SetValue_pval(Cp->GetColumnValue(g, Tbp->Row, 0)); + +#if defined(DEVELOPMENT) + if (Xpd && Value->IsNull() && !((PBDEF)Tbp->To_Def)->Accept) + htrc("Null expandable JSON value for column %s\n", Name); +#endif // DEVELOPMENT + + // Set null when applicable + if (!Nullable) + Value->SetNull(false); + +} // end of ReadColumn + +/***********************************************************************/ +/* WriteColumn: */ +/***********************************************************************/ +void BSONCOL::WriteColumn(PGLOBAL g) +{ + if (Xpd && Tbp->Pretty < 2) { + safe_strcpy(g->Message, sizeof(g->Message), "Cannot write expanded column when Pretty is not 2"); + throw 666; + } // endif Xpd + + /*********************************************************************/ + /* Check whether this node must be written. */ + /*********************************************************************/ + if (Value != To_Val) + Value->SetValue_pval(To_Val, FALSE); // Convert the updated value + + /*********************************************************************/ + /* On INSERT Null values are represented by no node. */ + /*********************************************************************/ + if (Value->IsNull() && Tbp->Mode == MODE_INSERT) + return; + + PBVAL jsp, row = Cp->GetRow(g); + + if (row) switch (Buf_Type) { + case TYPE_STRING: + case TYPE_DATE: + case TYPE_INT: + case TYPE_TINY: + case TYPE_SHORT: + case TYPE_BIGINT: + case TYPE_DOUBLE: + if (Buf_Type == TYPE_STRING && Nodes[Nod - 1].Op == OP_XX) { + char *s = Value->GetCharValue(); + + if (!(jsp = Cp->ParseJson(g, s, strlen(s)))) { + safe_strcpy(g->Message, sizeof(g->Message), s); + throw 666; + } // endif jsp + + switch (row->Type) { + case TYPE_JAR: + if (Nod > 1 && Nodes[Nod - 2].Op == OP_EQ) + Cp->SetArrayValue(row, jsp, Nodes[Nod - 2].Rank); + else + Cp->AddArrayValue(row, jsp); + + break; + case TYPE_JOB: + if (Nod > 1 && Nodes[Nod - 2].Key) + Cp->SetKeyValue(row, jsp, Nodes[Nod - 2].Key); + + break; + case TYPE_JVAL: + default: + Cp->SetValueVal(row, jsp); + } // endswitch Type + + break; + } else + jsp = Cp->NewVal(Value); + + switch (row->Type) { + case TYPE_JAR: + if (Nodes[Nod - 1].Op == OP_EQ) + Cp->SetArrayValue(row, jsp, Nodes[Nod - 1].Rank); + else + Cp->AddArrayValue(row, jsp); + + break; + case TYPE_JOB: + if (Nodes[Nod - 1].Key) + Cp->SetKeyValue(row, jsp, Nodes[Nod - 1].Key); + + break; + case TYPE_JVAL: + default: + Cp->SetValueVal(row, jsp); + } // endswitch Type + + break; + default: // ?????????? + snprintf(g->Message, sizeof(g->Message), "Invalid column type %d", Buf_Type); + } // endswitch Type + +} // end of WriteColumn + +/* -------------------------- Class TDBBSON -------------------------- */ + +/***********************************************************************/ +/* Implementation of the TDBBSON class. */ +/***********************************************************************/ +TDBBSON::TDBBSON(PGLOBAL g, PBDEF tdp, PTXF txfp) : TDBBSN(g, tdp, txfp) +{ + Docp = NULL; + Docrow = NULL; + Multiple = tdp->Multiple; + Docsize = 0; + Done = Changed = false; + Bp->SetPretty(2); +} // end of TDBBSON standard constructor + +TDBBSON::TDBBSON(PBTDB tdbp) : TDBBSN(tdbp) +{ + Docp = tdbp->Docp; + Docrow = tdbp->Docrow; + Multiple = tdbp->Multiple; + Docsize = tdbp->Docsize; + Done = tdbp->Done; + Changed = tdbp->Changed; +} // end of TDBBSON copy constructor + +// Used for update +PTDB TDBBSON::Clone(PTABS t) +{ + PTDB tp; + PBSCOL cp1, cp2; + PGLOBAL g = t->G; + + tp = new(g) TDBBSON(this); + + for (cp1 = (PBSCOL)Columns; cp1; cp1 = (PBSCOL)cp1->GetNext()) { + cp2 = new(g) BSONCOL(cp1, tp); // Make a copy + NewPointer(t, cp1, cp2); + } // endfor cp1 + + return tp; +} // end of Clone + +/***********************************************************************/ +/* Make the document tree from the object path. */ +/***********************************************************************/ +int TDBBSON::MakeNewDoc(PGLOBAL g) +{ + // Create a void table that will be populated + Docp = Bp->NewVal(TYPE_JAR); + + if (!(Top = Bp->MakeTopTree(g, TYPE_JAR))) + return RC_FX; + + Docp = Row; + Done = true; + return RC_OK; +} // end of MakeNewDoc + +/***********************************************************************/ +/* Make the document tree from a file. */ +/***********************************************************************/ +int TDBBSON::MakeDocument(PGLOBAL g) +{ + char *p, *p1, *p2, *memory, *objpath, *key = NULL; + int i = 0; + size_t len; + my_bool a; + MODE mode = Mode; + PBVAL jsp; + PBVAL objp = NULL; + PBVAL arp = NULL; + PBVAL val = NULL; + + if (Done) + return RC_OK; + + /*********************************************************************/ + /* Create the mapping file object in mode read. */ + /*********************************************************************/ + Mode = MODE_READ; + + if (!Txfp->OpenTableFile(g)) { + PFBLOCK fp = Txfp->GetTo_Fb(); + + if (fp) { + len = fp->Length; + memory = fp->Memory; + } else { + Mode = mode; // Restore saved Mode + return MakeNewDoc(g); + } // endif fp + + } else + return RC_FX; + + /*********************************************************************/ + /* Parse the json file and allocate its tree structure. */ + /*********************************************************************/ + g->Message[0] = 0; + jsp = Top = Bp->ParseJson(g, memory, len); + Txfp->CloseTableFile(g, false); + Mode = mode; // Restore saved Mode + + if (!jsp && g->Message[0]) + return RC_FX; + + if ((objpath = PlugDup(g, Objname))) { + p1 = (*objpath == '[') ? objpath++ : NULL; + + /*********************************************************************/ + /* Find the table in the tree structure. */ + /*********************************************************************/ + for (p = objpath; jsp && p; p = (p2 ? p2 : NULL)) { + a = (p1 != NULL); + p1 = strchr(p, '['); + p2 = strchr(p, '.'); + + if (!p2) + p2 = p1; + else if (p1) { + if (p1 < p2) + p2 = p1; + else if (p1 == p2 + 1) + *p2++ = 0; // Old syntax .[ + else + p1 = NULL; + + } // endif p1 + + if (p2) + *p2++ = 0; + + if (!a && *p && *p != '[' && !IsNum(p)) { + // obj is a key + if (jsp->Type != TYPE_JOB) { + safe_strcpy(g->Message, sizeof(g->Message), "Table path does not match the json file"); + return RC_FX; + } // endif Type + + key = p; + objp = jsp; + arp = NULL; + val = Bp->GetKeyValue(objp, key); + + if (!val || !(jsp = Bp->GetBson(val))) { + snprintf(g->Message, sizeof(g->Message), "Cannot find object key %s", key); + return RC_FX; + } // endif val + + } else { + if (*p == '[') { + // Old style + if (p[strlen(p) - 1] != ']') { + snprintf(g->Message, sizeof(g->Message), "Invalid Table path near %s", p); + return RC_FX; + } else + p++; + + } // endif p + + if (jsp->Type != TYPE_JAR) { + safe_strcpy(g->Message, sizeof(g->Message), "Table path does not match the json file"); + return RC_FX; + } // endif Type + + arp = jsp; + objp = NULL; + i = atoi(p) - B; + val = Bp->GetArrayValue(arp, i); + + if (!val) { + snprintf(g->Message, sizeof(g->Message), "Cannot find array value %d", i); + return RC_FX; + } // endif val + + } // endif + + jsp = val; + } // endfor p + + } // endif objpath + + if (jsp && jsp->Type == TYPE_JAR) + Docp = jsp; + else { + // The table is void or is just one object or one value + if (objp) { + Docp = Bp->GetKeyValue(objp, key); + Docp->To_Val = Bp->MOF(Bp->DupVal(Docp)); + Docp->Type = TYPE_JAR; + } else if (arp) { + Docp = Bp->NewVal(TYPE_JAR); + Bp->AddArrayValue(Docp, jsp); + Bp->SetArrayValue(arp, Docp, i); + } else { + Top = Docp = Bp->NewVal(TYPE_JAR); + Bp->AddArrayValue(Docp, jsp); + } // endif's + + } // endif jsp + + Docsize = Bp->GetSize(Docp); + Done = true; + return RC_OK; +} // end of MakeDocument + +/***********************************************************************/ +/* JSON Cardinality: returns table size in number of rows. */ +/***********************************************************************/ +int TDBBSON::Cardinality(PGLOBAL g) +{ + if (!g) + return (Xcol || Multiple) ? 0 : 1; + else if (Cardinal < 0) { + if (!Multiple) { + if (MakeDocument(g) == RC_OK) + Cardinal = Docsize; + + } else + return 10; + + } // endif Cardinal + + return Cardinal; +} // end of Cardinality + +/***********************************************************************/ +/* JSON GetMaxSize: returns table size estimate in number of rows. */ +/***********************************************************************/ +int TDBBSON::GetMaxSize(PGLOBAL g) +{ + if (MaxSize < 0) + MaxSize = Cardinality(g) * ((Xcol) ? Limit : 1); + + return MaxSize; +} // end of GetMaxSize + +/***********************************************************************/ +/* ResetSize: call by TDBMUL when calculating size estimate. */ +/***********************************************************************/ +void TDBBSON::ResetSize(void) +{ + MaxSize = Cardinal = -1; + Fpos = -1; + N = 0; + Docrow = NULL; + Done = false; +} // end of ResetSize + +/***********************************************************************/ +/* TDBBSON is not indexable. */ +/***********************************************************************/ +int TDBBSON::MakeIndex(PGLOBAL g, PIXDEF pxdf, bool) +{ + if (pxdf) { + safe_strcpy(g->Message, sizeof(g->Message), "JSON not indexable when pretty = 2"); + return RC_FX; + } else + return RC_OK; + +} // end of MakeIndex + +/***********************************************************************/ +/* Return the position in the table. */ +/***********************************************************************/ +int TDBBSON::GetRecpos(void) +{ +#if 0 + union { + uint Rpos; + BYTE Spos[4]; + }; + + Rpos = htonl(Fpos); + Spos[0] = (BYTE)NextSame; + return Rpos; +#endif // 0 + return Fpos; +} // end of GetRecpos + +/***********************************************************************/ +/* Set the position in the table. */ +/***********************************************************************/ +bool TDBBSON::SetRecpos(PGLOBAL, int recpos) +{ +#if 0 + union { + uint Rpos; + BYTE Spos[4]; + }; + + Rpos = recpos; + NextSame = Spos[0]; + Spos[0] = 0; + Fpos = (signed)ntohl(Rpos); + + //if (Fpos != (signed)ntohl(Rpos)) { + // Fpos = ntohl(Rpos); + // same = false; + //} else + // same = true; +#endif // 0 + + Fpos = recpos - 1; + Docrow = NULL; + return false; +} // end of SetRecpos + +/***********************************************************************/ +/* JSON Access Method opening routine. */ +/***********************************************************************/ +bool TDBBSON::OpenDB(PGLOBAL g) +{ + if (Use == USE_OPEN) { + /*******************************************************************/ + /* Table already open replace it at its beginning. */ + /*******************************************************************/ + Fpos = -1; + NextSame = false; + SameRow = 0; + Docrow = NULL; + return false; + } // endif use + +/*********************************************************************/ +/* OpenDB: initialize the JSON file processing. */ +/*********************************************************************/ + if (MakeDocument(g) != RC_OK) + return true; + + if (Mode == MODE_INSERT) + switch (Jmode) { + case MODE_OBJECT: Row = Bp->NewVal(TYPE_JOB); break; + case MODE_ARRAY: Row = Bp->NewVal(TYPE_JAR); break; + case MODE_VALUE: Row = Bp->NewVal(TYPE_JVAL); break; + default: + snprintf(g->Message, sizeof(g->Message), "Invalid Jmode %d", Jmode); + return true; + } // endswitch Jmode + + if (Xcol) + To_Filter = NULL; // Imcompatible + + Use = USE_OPEN; + return false; +} // end of OpenDB + +/***********************************************************************/ +/* ReadDB: Data Base read routine for JSON access method. */ +/***********************************************************************/ +int TDBBSON::ReadDB(PGLOBAL) +{ + int rc; + + N++; + + if (NextSame) { + SameRow = NextSame; + NextSame = false; + M++; + rc = RC_OK; + } else if (++Fpos < Docsize) { + Docrow = (Docrow) ? Bp->GetNext(Docrow) : Bp->GetArrayValue(Docp, Fpos); + Row = (Docrow->Type == TYPE_JVAL) ? Bp->GetBson(Docrow) : Docrow; + SameRow = 0; + M = 1; + rc = RC_OK; + } else + rc = RC_EF; + + return rc; +} // end of ReadDB + +/***********************************************************************/ +/* WriteDB: Data Base write routine for JSON access method. */ +/***********************************************************************/ +int TDBBSON::WriteDB(PGLOBAL g) +{ + if (Mode == MODE_INSERT) { + Bp->AddArrayValue(Docp, Row); + + switch(Jmode) { + case MODE_OBJECT: Row = Bp->NewVal(TYPE_JOB); break; + case MODE_ARRAY: Row = Bp->NewVal(TYPE_JAR); break; + default: Row = Bp->NewVal(); break; + } // endswitch Jmode + + } else + Bp->SetArrayValue(Docp, Row, Fpos); + + Changed = true; + return RC_OK; +} // end of WriteDB + +/***********************************************************************/ +/* Data Base delete line routine for JSON access method. */ +/***********************************************************************/ +int TDBBSON::DeleteDB(PGLOBAL g, int irc) +{ + if (irc == RC_OK) + // Deleted current row + Bp->DeleteValue(Docp, Fpos); + else if (irc == RC_FX) + // Delete all + Docp->To_Val = 0; + + Changed = true; + return RC_OK; +} // end of DeleteDB + +/***********************************************************************/ +/* Data Base close routine for JSON access methods. */ +/***********************************************************************/ +void TDBBSON::CloseDB(PGLOBAL g) +{ + if (!Changed) + return; + + // Save the modified document + char filename[_MAX_PATH]; + +//Docp->InitArray(g); + + // We used the file name relative to recorded datapath + PlugSetPath(filename, ((PBDEF)To_Def)->Fn, GetPath()); + + // Serialize the modified table + if (!Bp->Serialize(g, Top, filename, Pretty)) + puts(g->Message); + +} // end of CloseDB + +/* ---------------------------TDBBCL class --------------------------- */ + +/***********************************************************************/ +/* TDBBCL class constructor. */ +/***********************************************************************/ +TDBBCL::TDBBCL(PBDEF tdp) : TDBCAT(tdp) { + Topt = tdp->GetTopt(); + Db = tdp->Schema; + Dsn = tdp->Uri; +} // end of TDBBCL constructor + +/***********************************************************************/ +/* GetResult: Get the list the JSON file columns. */ +/***********************************************************************/ +PQRYRES TDBBCL::GetResult(PGLOBAL g) { + return BSONColumns(g, Db, Dsn, Topt, false); +} // end of GetResult + +/* --------------------------- End of json --------------------------- */ |