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mariadb/storage/connect/jsonudf.cpp
Olivier Bertrand f741fcc9e5 Handle constant function and argument 
modified:   storage/connect/jsonudf.cpp

Record result of json test
  modified:   storage/connect/mysql-test/connect/r/json.result
2015-08-22 12:13:37 +02:00

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/************* jsonudf C++ Program Source Code File (.CPP) *************/
/* PROGRAM NAME: jsonudf Version 1.1 */
/* (C) Copyright to the author Olivier BERTRAND 2015 */
/* This program are the JSON User Defined Functions . */
/***********************************************************************/
/***********************************************************************/
/* Include relevant sections of the MariaDB header file. */
/***********************************************************************/
#include <my_global.h>
#include <mysqld.h>
#include <mysql.h>
#include <sql_error.h>
#include <stdio.h>
#include "jsonudf.h"
#define MEMFIX 4096
#define PUSH_WARNING(M) \
push_warning(current_thd, Sql_condition::WARN_LEVEL_WARN, 0, M)
#define M 7
uint GetJsonGrpSize(void);
static int IsJson(UDF_ARGS *args, uint i);
static PSZ MakePSZ(PGLOBAL g, UDF_ARGS *args, int i);
/* ------------------------------ JSNX ------------------------------- */
/***********************************************************************/
/* JSNX public constructor. */
/***********************************************************************/
JSNX::JSNX(PGLOBAL g, PJSON row, int type, int len, int prec)
{
Row = row;
Value = AllocateValue(g, type, len, prec);
MulVal = NULL;
Nodes = NULL;
Jp = NULL;
Jpath = NULL;
Buf_Type = type;
Long = len;
Prec = prec;
Nod = 0;
Xnod = -1;
B = 0;
Xpd = false;
Parsed = false;
} // end of JSNX constructor
/***********************************************************************/
/* SetJpath: set and parse the json path. */
/***********************************************************************/
my_bool JSNX::SetJpath(PGLOBAL g, char *path)
{
// Check Value was allocated
if (!Value)
return true;
Value->SetNullable(true);
Jpath = path;
// Parse the json path
return ParseJpath(g);
} // end of SetJpath
/***********************************************************************/
/* Check whether this object is expanded. */
/***********************************************************************/
my_bool JSNX::CheckExpand(PGLOBAL g, int i, PSZ nm, my_bool b)
{
#if 0
if ((Tjp->Xcol && nm && !strcmp(nm, Tjp->Xcol) &&
(Tjp->Xval < 0 || Tjp->Xval == i)) || Xpd) {
Xpd = true; // Expandable object
Nodes[i].Op = OP_EXP;
} else if (b) {
strcpy(g->Message, "Cannot expand more than one branch");
return true;
} // endif Xcol
#endif // 0
return false;
} // end of CheckExpand
/***********************************************************************/
/* Analyse array processing options. */
/***********************************************************************/
my_bool JSNX::SetArrayOptions(PGLOBAL g, char *p, int i, PSZ nm)
{
int n = (int)strlen(p);
my_bool dg = true, b = false;
PJNODE jnp = &Nodes[i];
if (*p) {
if (p[--n] == ']') {
p[n--] = 0;
p++;
} else {
// Wrong array specification
sprintf(g->Message,
// "Invalid array specification %s for %s", p, Name);
"Invalid array specification %s", p);
return true;
} // endif p
} else
b = true;
// To check whether a numeric Rank was specified
for (int k = 0; dg && p[k]; k++)
dg = isdigit(p[k]) > 0;
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 = 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) - B;
jnp->Op = OP_EQ;
} else if (n == 1) {
// Set the Op value;
switch (*p) {
case '+': jnp->Op = OP_ADD; break;
case '*': 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 'x':
case 'X': // Expand this array
strcpy(g->Message, "Expand not supported by this function");
return true;
#if 0
if (!Tjp->Xcol && nm) {
Xpd = true;
jnp->Op = OP_EXP;
Tjp->Xval = i;
Tjp->Xcol = nm;
} else if (CheckExpand(g, i, nm, true))
return true;
break;
#endif // 0
default:
sprintf(g->Message,
// "Invalid function specification %c for %s", *p, Name);
"Invalid function specification %c", *p);
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 {
// sprintf(g->Message, "Wrong array specification for %s", Name);
strcpy(g->Message, "Wrong array specification");
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. */
/***********************************************************************/
my_bool JSNX::ParseJpath(PGLOBAL g)
{
char *p, *p2 = NULL, *pbuf = NULL;
int i;
my_bool mul = false;
if (Parsed)
return false; // Already done
//else if (InitValue(g))
// return true;
else if (!Jpath)
// Jpath = Name;
return true;
#if 0
if (To_Tdb->GetOrig()) {
// This is an updated column, get nodes from origin
for (PJCOL colp = (PJCOL)Tjp->GetColumns(); colp;
colp = (PJCOL)colp->GetNext())
if (!stricmp(Name, colp->GetName())) {
Nod = colp->Nod;
Nodes = colp->Nodes;
goto fin;
} // endif Name
sprintf(g->Message, "Cannot parse updated column %s", Name);
return true;
} // endif To_Orig
#endif // 0
pbuf = PlugDup(g, Jpath);
// The Jpath must be analyzed
for (i = 0, p = pbuf; (p = strchr(p, ':')); 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; i < Nod; i++, p = (p2 ? p2 + 1 : p + strlen(p))) {
if ((p2 = strchr(p, ':')))
*p2 = 0;
// Jpath must be explicit
if (*p == 0 || *p == '[') {
// Analyse intermediate array processing
if (SetArrayOptions(g, p, i, Nodes[i-1].Key))
return true;
} 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
//fin:
MulVal = AllocateValue(g, Value);
Parsed = true;
return false;
} // end of ParseJpath
/***********************************************************************/
/* MakeJson: Serialize the json item and set value to it. */
/***********************************************************************/
PVAL JSNX::MakeJson(PGLOBAL g, PJSON jsp)
{
if (Value->IsTypeNum()) {
strcpy(g->Message, "Cannot make Json for a numeric value");
Value->Reset();
} else
Value->SetValue_psz(Serialize(g, jsp, NULL, 0));
return Value;
} // end of MakeJson
/***********************************************************************/
/* SetValue: Set a value from a JVALUE contains. */
/***********************************************************************/
void JSNX::SetJsonValue(PGLOBAL g, PVAL vp, PJVAL val, int n)
{
if (val) {
switch (val->GetValType()) {
case TYPE_STRG:
case TYPE_INTG:
case TYPE_BINT:
case TYPE_DBL:
vp->SetValue_pval(val->GetValue());
break;
case TYPE_BOOL:
if (vp->IsTypeNum())
vp->SetValue(val->GetInteger() ? 1 : 0);
else
vp->SetValue_psz((PSZ)(val->GetInteger() ? "true" : "false"));
break;
case TYPE_JAR:
SetJsonValue(g, vp, val->GetArray()->GetValue(0), n);
break;
case TYPE_JOB:
// if (!vp->IsTypeNum() || !Strict) {
vp->SetValue_psz(val->GetObject()->GetText(g, NULL));
break;
// } // endif Type
default:
vp->Reset();
} // endswitch Type
} else {
vp->SetNull(true);
vp->Reset();
} // endif val
} // end of SetJsonValue
/***********************************************************************/
/* GetJson: */
/***********************************************************************/
PJVAL JSNX::GetJson(PGLOBAL g)
{
return GetValue(g, Row, 0);
} // end of GetJson
/***********************************************************************/
/* ReadValue: */
/***********************************************************************/
void JSNX::ReadValue(PGLOBAL g)
{
//if (!Tjp->SameRow || Xnod >= Tjp->SameRow)
// Value->SetValue_pval(GetColumnValue(g, Tjp->Row, 0));
Value->SetValue_pval(GetColumnValue(g, Row, 0));
// Set null when applicable
//if (Nullable)
// Value->SetNull(Value->IsZero());
} // end of ReadValue
/***********************************************************************/
/* GetColumnValue: */
/***********************************************************************/
PVAL JSNX::GetColumnValue(PGLOBAL g, PJSON row, int i)
{
int n = Nod - 1;
//my_bool expd = false;
//PJAR arp;
PJVAL val = NULL;
#if 0
for (; i < Nod && row; i++) {
if (Nodes[i].Op == OP_NUM) {
Value->SetValue(row->GetType() == TYPE_JAR ? row->size() : 1);
return(Value);
} else if (Nodes[i].Op == OP_XX) {
return MakeJson(g, row);
} else switch (row->GetType()) {
case TYPE_JOB:
if (!Nodes[i].Key) {
// Expected Array was not there
if (i < Nod-1)
continue;
else
val = new(g)JVALUE(row);
} else
val = ((PJOB)row)->GetValue(Nodes[i].Key);
break;
case TYPE_JAR:
arp = (PJAR)row;
if (!Nodes[i].Key) {
if (Nodes[i].Op == OP_EQ)
val = arp->GetValue(Nodes[i].Rank);
else if (Nodes[i].Op == OP_EXP)
return ExpandArray(g, arp, i);
else
return CalculateArray(g, arp, i);
} else if (i < Nod-1) {
strcpy(g->Message, "Unexpected array");
val = NULL; // Not an expected array
} else
val = arp->GetValue(0);
break;
case TYPE_JVAL:
val = (PJVAL)row;
break;
default:
sprintf(g->Message, "Invalid row JSON type %d", row->GetType());
val = NULL;
} // endswitch Type
if (i < Nod-1)
row = (val) ? val->GetJson() : NULL;
} // endfor i
#endif // 0
val = GetValue(g, row, i);
SetJsonValue(g, Value, val, n);
return Value;
} // end of GetColumnValue
/***********************************************************************/
/* GetValue: */
/***********************************************************************/
PJVAL JSNX::GetValue(PGLOBAL g, PJSON row, int i)
{
//int n = Nod - 1;
my_bool expd = false;
PJAR arp;
PJVAL val = NULL;
for (; i < Nod && row; i++) {
if (Nodes[i].Op == OP_NUM) {
Value->SetValue(row->GetType() == TYPE_JAR ? row->size() : 1);
val = new(g) JVALUE(g, Value);
return val;
} else if (Nodes[i].Op == OP_XX) {
return new(g) JVALUE(g, MakeJson(g, row));
} else switch (row->GetType()) {
case TYPE_JOB:
if (!Nodes[i].Key) {
// Expected Array was not there
if (i < Nod-1)
continue;
else
val = new(g) JVALUE(row);
} else
val = ((PJOB)row)->GetValue(Nodes[i].Key);
break;
case TYPE_JAR:
arp = (PJAR)row;
if (!Nodes[i].Key) {
if (Nodes[i].Op == OP_EQ)
val = arp->GetValue(Nodes[i].Rank);
else if (Nodes[i].Op == OP_EXP)
return (PJVAL)ExpandArray(g, arp, i);
else
return new(g) JVALUE(g, CalculateArray(g, arp, i));
} else if (i < Nod-1) {
strcpy(g->Message, "Unexpected array");
val = NULL; // Not an expected array
} else
val = arp->GetValue(0);
break;
case TYPE_JVAL:
val = (PJVAL)row;
break;
default:
sprintf(g->Message, "Invalid row JSON type %d", row->GetType());
val = NULL;
} // endswitch Type
if (i < Nod-1)
row = (val) ? val->GetJson() : NULL;
} // endfor i
// SetJsonValue(g, Value, val, n);
return val;
} // end of GetValue
/***********************************************************************/
/* ExpandArray: */
/***********************************************************************/
PVAL JSNX::ExpandArray(PGLOBAL g, PJAR arp, int n)
{
#if 0
int ars;
PJVAL jvp;
JVALUE jval;
ars = MY_MIN(Tjp->Limit, arp->size());
if (!(jvp = arp->GetValue((Nodes[n].Rx = Nodes[n].Nx)))) {
strcpy(g->Message, "Logical error expanding array");
longjmp(g->jumper[g->jump_level], 666);
} // endif jvp
if (n < Nod - 1 && jvp->GetJson()) {
jval.SetValue(GetColumnValue(g, jvp->GetJson(), n + 1));
jvp = &jval;
} // endif n
if (n >= Tjp->NextSame) {
if (++Nodes[n].Nx == ars) {
Nodes[n].Nx = 0;
Xnod = 0;
} else
Xnod = n;
Tjp->NextSame = Xnod;
} // endif NextSame
SetJsonValue(g, Value, jvp, n);
return Value;
#endif // 0
strcpy(g->Message, "Expand cannot be done by this function");
return NULL;
} // end of ExpandArray
/***********************************************************************/
/* CalculateArray: */
/***********************************************************************/
PVAL JSNX::CalculateArray(PGLOBAL g, PJAR arp, int n)
{
//int i, ars, nv = 0, nextsame = Tjp->NextSame;
int i, ars, nv = 0, nextsame = 0;
my_bool err;
OPVAL op = Nodes[n].Op;
PVAL val[2], vp = Nodes[n].Valp;
PJVAL jvrp, jvp;
JVALUE jval;
vp->Reset();
//ars = MY_MIN(Tjp->Limit, arp->size());
ars = arp->size();
for (i = 0; i < ars; i++) {
jvrp = arp->GetValue(i);
// do {
if (n < Nod - 1 && jvrp->GetJson()) {
// Tjp->NextSame = nextsame;
jval.SetValue(GetColumnValue(g, jvrp->GetJson(), n + 1));
jvp = &jval;
} else
jvp = jvrp;
if (!nv++) {
SetJsonValue(g, vp, jvp, n);
continue;
} else
SetJsonValue(g, MulVal, jvp, n);
if (!MulVal->IsZero()) {
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();
} // endif Zero
// } while (Tjp->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
//Tjp->NextSame = nextsame;
return vp;
} // end of CalculateArray
#if 0
/***********************************************************************/
/* GetRow: Get the object containing this column. */
/***********************************************************************/
PJSON JSNX::GetRow(PGLOBAL g)
{
PJVAL val = NULL;
PJAR arp;
//PJSON nwr, row = Tjp->Row;
PJSON nwr, row = Row;
for (int i = 0; i < Nod-1 && row; i++) {
if (Nodes[i+1].Op == OP_XX)
break;
else switch (row->GetType()) {
case TYPE_JOB:
if (!Nodes[i].Key)
// Expected Array was not there
continue;
val = ((PJOB)row)->GetValue(Nodes[i].Key);
break;
case TYPE_JAR:
if (!Nodes[i].Key) {
arp = (PJAR)row;
if (Nodes[i].Op == OP_EQ)
val = arp->GetValue(Nodes[i].Rank);
else
val = arp->GetValue(Nodes[i].Rx);
} else {
strcpy(g->Message, "Unexpected array");
val = NULL; // Not an expected array
} // endif Nodes
break;
case TYPE_JVAL:
val = (PJVAL)row;
break;
default:
sprintf(g->Message, "Invalid row JSON type %d", row->GetType());
val = NULL;
} // endswitch Type
if (val) {
row = val->GetJson();
} else {
// Construct missing objects
for (i++; row && i < Nod; i++) {
if (Nodes[i].Op == OP_XX)
break;
else if (!Nodes[i].Key)
// Construct intermediate array
nwr = new(g)JARRAY;
else
nwr = new(g)JOBJECT;
if (row->GetType() == TYPE_JOB) {
((PJOB)row)->SetValue(g, new(g)JVALUE(nwr), Nodes[i-1].Key);
} else if (row->GetType() == TYPE_JAR) {
((PJAR)row)->AddValue(g, new(g)JVALUE(nwr));
((PJAR)row)->InitArray(g);
} else {
strcpy(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
/***********************************************************************/
/* WriteColumn: */
/***********************************************************************/
void JSNX::WriteColumn(PGLOBAL g)
{
/*********************************************************************/
/* 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() && Tjp->Mode == MODE_INSERT)
return;
char *s;
PJOB objp = NULL;
PJAR arp = NULL;
PJVAL jvp = NULL;
PJSON jsp, row = GetRow(g);
JTYP type = row->GetType();
switch (row->GetType()) {
case TYPE_JOB: objp = (PJOB)row; break;
case TYPE_JAR: arp = (PJAR)row; break;
case TYPE_JVAL: jvp = (PJVAL)row; break;
default: row = NULL; // ???????????????????????????
} // endswitch Type
if (row) switch (Buf_Type) {
case TYPE_STRING:
if (Nodes[Nod-1].Op == OP_XX) {
s = Value->GetCharValue();
if (!(jsp = ParseJson(g, s, (int)strlen(s)))) {
strcpy(g->Message, s);
longjmp(g->jumper[g->jump_level], 666);
} // endif jsp
if (arp) {
if (Nod > 1 && Nodes[Nod-2].Op == OP_EQ)
arp->SetValue(g, new(g)JVALUE(jsp), Nodes[Nod-2].Rank);
else
arp->AddValue(g, new(g)JVALUE(jsp));
arp->InitArray(g);
} else if (objp) {
if (Nod > 1 && Nodes[Nod-2].Key)
objp->SetValue(g, new(g)JVALUE(jsp), Nodes[Nod-2].Key);
} else if (jvp)
jvp->SetValue(jsp);
break;
} // endif Op
// Passthru
case TYPE_DATE:
case TYPE_INT:
case TYPE_DOUBLE:
if (arp) {
if (Nodes[Nod-1].Op == OP_EQ)
arp->SetValue(g, new(g)JVALUE(g, Value), Nodes[Nod-1].Rank);
else
arp->AddValue(g, new(g)JVALUE(g, Value));
arp->InitArray(g);
} else if (objp) {
if (Nodes[Nod-1].Key)
objp->SetValue(g, new(g)JVALUE(g, Value), Nodes[Nod-1].Key);
} else if (jvp)
jvp->SetValue(Value);
break;
default: // ??????????
sprintf(g->Message, "Invalid column type %d", Buf_Type);
} // endswitch Type
} // end of WriteColumn
#endif // 0
/***********************************************************************/
/* Locate a value in a JSON tree: */
/***********************************************************************/
PSZ JSNX::Locate(PGLOBAL g, PJSON jsp, char *what,
enum Item_result type, unsigned long len)
{
my_bool b = false, err = true;
g->Message[0] = 0;
if (!jsp) {
strcpy(g->Message, "Null json tree");
return NULL;
} else // Write to the path string
Jp = new(g)JOUTPATH(g, what, type, len);
switch (jsp->GetType()) {
case TYPE_JAR:
err = LocateArray((PJAR)jsp);
break;
case TYPE_JOB:
err = LocateObject((PJOB)jsp);
break;
case TYPE_JVAL:
err = LocateValue((PJVAL)jsp);
break;
default:
err = true;
} // endswitch Type
if (err) {
if (!g->Message[0])
strcpy(g->Message, "Invalid json tree");
} else if (Jp->Found) {
Jp->WriteChr('\0');
PlugSubAlloc(g, NULL, Jp->N);
return Jp->Strp;
} // endif's
return NULL;
} // end of Locate
/***********************************************************************/
/* Locate in a JSON Array. */
/***********************************************************************/
my_bool JSNX::LocateArray(PJAR jarp)
{
char s[16];
size_t m = Jp->N;
for (int i = 0; i < jarp->size() && !Jp->Found; i++) {
Jp->N = m;
sprintf(s, "[%d]", i + B);
if (Jp->WriteStr(s))
return true;
if (LocateValue(jarp->GetValue(i)))
return true;
} // endfor i
return false;
} // end of LocateArray
/***********************************************************************/
/* Locate in a JSON Object. */
/***********************************************************************/
my_bool JSNX::LocateObject(PJOB jobp)
{
size_t m = Jp->N;
for (PJPR pair = jobp->First; pair && !Jp->Found; pair = pair->Next) {
Jp->N = m;
if (Jp->WriteStr(pair->Key))
return true;
if (LocateValue(pair->Val))
return true;
} // endfor i
return false;
} // end of LocateObject
/***********************************************************************/
/* Locate a JSON Value. */
/***********************************************************************/
my_bool JSNX::LocateValue(PJVAL jvp)
{
char *p, buf[32];
PJAR jap;
PJOB jop;
PVAL valp;
if ((jap = jvp->GetArray())) {
if (Jp->WriteChr(':'))
return true;
return LocateArray(jap);
} else if ((jop = jvp->GetObject())) {
if (Jp->WriteChr(':'))
return true;
return LocateObject(jop);
} else if (!(valp = jvp->Value) || valp->IsNull())
return false;
else switch (Jp->Type) {
case STRING_RESULT:
p = valp->GetCharString(buf);
Jp->Found = (strlen(p) == Jp->Len &&
!strncmp(Jp->What, valp->GetCharString(buf), Jp->Len));
break;
case INT_RESULT:
Jp->Found = *(longlong*)Jp->What == valp->GetBigintValue();
break;
case DECIMAL_RESULT:
Jp->Found = atof(Jp->What) == valp->GetFloatValue();
break;
case REAL_RESULT:
Jp->Found = *(double*)Jp->What == valp->GetFloatValue();
break;
default:
sprintf(Jp->g->Message, "Invalid type %d", Buf_Type);
return true;
} // endswitch Type
return false;
} // end of LocateValue
/* ---------------------------- JSON UDF ----------------------------- */
/***********************************************************************/
/* Program for SubSet re-initialization of the memory pool. */
/***********************************************************************/
static my_bool JsonSubSet(PGLOBAL g)
{
PPOOLHEADER pph = (PPOOLHEADER)g->Sarea;
pph->To_Free = (OFFSET)((g->Createas) ? g->Createas : sizeof(POOLHEADER));
pph->FreeBlk = g->Sarea_Size - pph->To_Free;
return FALSE;
} /* end of JsonSubSet */
/***********************************************************************/
/* Program for saving the status of the memory pools. */
/***********************************************************************/
inline void JsonMemSave(PGLOBAL g)
{
g->Createas = (int)((PPOOLHEADER)g->Sarea)->To_Free;
} /* end of JsonMemSave */
/***********************************************************************/
/* Allocate and initialise the memory area. */
/***********************************************************************/
static my_bool JsonInit(UDF_INIT *initid, UDF_ARGS *args,
char *message, my_bool mbn,
unsigned long reslen, unsigned long memlen)
{
PGLOBAL g = PlugInit(NULL, memlen);
if (!g) {
strcpy(message, "Allocation error");
return true;
} else if (g->Sarea_Size == 0) {
strcpy(message, g->Message);
PlugExit(g);
return true;
} else
initid->ptr = (char*)g;
g->Mrr = (args->arg_count && args->args[0]) ? 1 : 0;
g->Alchecked = (initid->const_item) ? 1 : 0;
initid->maybe_null = mbn;
initid->max_length = reslen;
return false;
} // end of JsonInit
/***********************************************************************/
/* Check if a path was specified and set jvp according to it. */
/***********************************************************************/
static my_bool CheckPath(PGLOBAL g, UDF_ARGS *args, PJSON top, PJVAL& jvp, int n)
{
for (uint i = n; i < args->arg_count; i++)
if (args->arg_type[i] == STRING_RESULT) {
// A path to a subset of the json tree is given
char *path = MakePSZ(g, args, i);
PJSNX jsx = new(g)JSNX(g, top, TYPE_STRING);
if (jsx->SetJpath(g, path))
return true;
if (!(jvp = jsx->GetJson(g))) {
sprintf(g->Message, "No sub-item at '%s'", path);
return true;
} // endif jvp
break;
} // endif type
return false;
} // end of CheckPath
/***********************************************************************/
/* Make the result according to the first argument type. */
/***********************************************************************/
static char *MakeResult(PGLOBAL g, UDF_ARGS *args, PJSON top, int n = 2)
{
char *str;
if (IsJson(args, 0) == 2) {
// Make the change in the json file
char *msg;
int pretty = 2;
for (uint i = n; i < args->arg_count; i++)
if (args->arg_type[i] == INT_RESULT) {
pretty = (int)*(longlong*)args->args[i];
break;
} // endif type
if ((msg = Serialize(g, top, MakePSZ(g, args, 0), pretty)))
PUSH_WARNING(msg);
str = NULL;
} else if (!(str = Serialize(g, top, NULL, 0)))
PUSH_WARNING(g->Message);
return str;
} // end of MakeResult
/***********************************************************************/
/* Returns not 0 if the argument is a JSON item or file name. */
/***********************************************************************/
static int IsJson(UDF_ARGS *args, uint i)
{
int n = 0;
if (i >= args->arg_count)
n = 0;
else if (!strnicmp(args->attributes[i], "Json_", 5))
n = 1; // arg is a json item
else if (args->arg_type[i] == STRING_RESULT &&
!strnicmp(args->attributes[i], "Jfile_", 6))
n = 2; // arg is a json file name
return n;
} // end of IsJson
/***********************************************************************/
/* GetFileLength: returns file size in number of bytes. */
/***********************************************************************/
static long GetFileLength(char *fn)
{
int h;
long len;
h= open(fn, _O_RDONLY);
if (h != -1) {
if ((len = _filelength(h)) < 0)
len = 0;
close(h);
} else
len = 0;
return len;
} // end of GetFileLength
/***********************************************************************/
/* Calculate the reslen and memlen needed by a function. */
/***********************************************************************/
static my_bool CalcLen(UDF_ARGS *args, my_bool obj,
unsigned long& reslen, unsigned long& memlen,
my_bool mod = false)
{
char fn[_MAX_PATH];
unsigned long i, k, n;
long fl, j = -1;
reslen = args->arg_count + 2;
// Calculate the result max length
for (i = 0; i < args->arg_count; i++) {
if (obj) {
if (!(k = args->attribute_lengths[i]))
k = strlen(args->attributes[i]);
reslen += (k + 3); // For quotes and :
} // endif obj
switch (args->arg_type[i]) {
case STRING_RESULT:
if (IsJson(args, i) == 2 && args->args[i]) {
if (!mod) {
n = MY_MIN(args->lengths[i], sizeof(fn) - 1);
memcpy(fn, args->args[i], n);
fn[n] = 0;
j = i;
fl = GetFileLength(fn);
reslen += fl;
} else
reslen += args->lengths[i];
} else if (IsJson(args, i) == 1)
reslen += args->lengths[i];
else
reslen += (args->lengths[i] + 1) * 2; // Pessimistic !
break;
case INT_RESULT:
reslen += 20;
break;
case REAL_RESULT:
reslen += 31;
break;
case DECIMAL_RESULT:
reslen += (args->lengths[i] + 7); // 6 decimals
break;
case TIME_RESULT:
case ROW_RESULT:
case IMPOSSIBLE_RESULT:
default:
// What should we do here ?
break;
} // endswitch arg_type
} // endfor i
// Calculate the amount of memory needed
memlen = MEMFIX + sizeof(JOUTSTR) + reslen;
for (i = 0; i < args->arg_count; i++) {
memlen += (args->lengths[i] + sizeof(JVALUE));
if (obj) {
if (!(k = args->attribute_lengths[i]))
k = strlen(args->attributes[i]);
memlen += (k + sizeof(JOBJECT) + sizeof(JPAIR));
} else
memlen += sizeof(JARRAY);
switch (args->arg_type[i]) {
case STRING_RESULT:
if (IsJson(args, i) == 2 && args->args[i]) {
if ((signed)i != j) {
n = MY_MIN(args->lengths[i], sizeof(fn) - 1);
memcpy(fn, args->args[i], n);
fn[n] = 0;
j = -1;
fl = GetFileLength(fn);
} // endif i
memlen += fl * M;
} else if (IsJson(args, i) == 1)
memlen += args->lengths[i] * M; // Estimate parse memory
memlen += sizeof(TYPVAL<PSZ>);
break;
case INT_RESULT:
memlen += sizeof(TYPVAL<int>);
break;
case REAL_RESULT:
case DECIMAL_RESULT:
memlen += sizeof(TYPVAL<double>);
break;
case TIME_RESULT:
case ROW_RESULT:
case IMPOSSIBLE_RESULT:
default:
// What should we do here ?
break;
} // endswitch arg_type
} // endfor i
return false;
} // end of CalcLen
/***********************************************************************/
/* Check if the calculated memory is enough. */
/***********************************************************************/
static my_bool CheckMemory(PGLOBAL g, UDF_INIT *initid, UDF_ARGS *args,
uint n, my_bool obj, my_bool mod = false)
{
unsigned long rl, ml;
n = MY_MIN(n, args->arg_count);
for (uint i = 0; i < n; i++)
if (IsJson(args, i) == 2) {
if (CalcLen(args, obj, rl, ml, mod))
return true;
else if (ml > g->Sarea_Size) {
free(g->Sarea);
if (!(g->Sarea = PlugAllocMem(g, ml))) {
char errmsg[256];
sprintf(errmsg, MSG(WORK_AREA), g->Message);
strcpy(g->Message, errmsg);
g->Sarea_Size = 0;
return true;
} // endif Alloc
g->Sarea_Size = ml;
g->Createas = 0;
g->Xchk = NULL;
initid->max_length = rl;
} // endif Size
break;
} // endif IsJson
JsonSubSet(g);
return false;
} // end of CheckMemory
/***********************************************************************/
/* Make a zero terminated string from the passed argument. */
/***********************************************************************/
static PSZ MakePSZ(PGLOBAL g, UDF_ARGS *args, int i)
{
if (args->arg_count > (unsigned)i && args->args[i]) {
int n = args->lengths[i];
PSZ s = (PSZ)PlugSubAlloc(g, NULL, n + 1);
memcpy(s, args->args[i], n);
s[n] = 0;
return s;
} else
return NULL;
} // end of MakePSZ
/***********************************************************************/
/* Make a valid key from the passed argument. */
/***********************************************************************/
static PSZ MakeKey(PGLOBAL g, UDF_ARGS *args, int i)
{
if (args->arg_count > (unsigned)i) {
int n = args->attribute_lengths[i];
my_bool b; // true if attribute is zero terminated
PSZ p, s = args->attributes[i];
if (s && *s && (n || *s == '\'')) {
if ((b = (!n || !s[n])))
n = strlen(s);
if (n > 5 && IsJson(args, i)) {
s += 5;
n -= 5;
} else if (*s == '\'' && s[n-1] == '\'') {
s++;
n -= 2;
b = false;
} // endif *s
if (n < 1)
return "Key";
if (!b) {
p = (PSZ)PlugSubAlloc(g, NULL, n + 1);
memcpy(p, s, n);
p[n] = 0;
s = p;
} // endif b
} // endif s
return s;
} // endif count
return "Key";
} // end of MakeKey
/***********************************************************************/
/* Return a json file contains. */
/***********************************************************************/
static char *GetJsonFile(PGLOBAL g, char *fn)
{
char *str;
int h, n, len;
h= open(fn, _O_RDONLY, _O_TEXT);
if (h == -1) {
sprintf(g->Message, "Error %d opening %s", errno, fn);
return NULL;
} // endif h
if ((len = _filelength(h)) < 0) {
sprintf(g->Message, MSG(FILELEN_ERROR), "_filelength", fn);
close(h);
return NULL;
} // endif len
str = (char*)PlugSubAlloc(g, NULL, len + 1);
if ((n = read(h, str, len)) < 0) {
sprintf(g->Message, "Error %d reading %d bytes from %s", errno, len, fn);
return NULL;
} // endif n
str[n] = 0;
close(h);
return str;
} // end of GetJsonFile
/***********************************************************************/
/* Make a JSON value from the passed argument. */
/***********************************************************************/
static PJVAL MakeValue(PGLOBAL g, UDF_ARGS *args, uint i)
{
char *sap = (args->arg_count > i) ? args->args[i] : NULL;
int n, len;
long long bigint;
PJSON jsp;
PJVAL jvp = new(g) JVALUE;
if (sap) switch (args->arg_type[i]) {
case STRING_RESULT:
if ((len = args->lengths[i])) {
sap = MakePSZ(g, args, i);
if ((n = IsJson(args, i))) {
if (n == 2) {
if (!(sap = GetJsonFile(g, sap)))
PUSH_WARNING(g->Message);
len = (sap) ? strlen(sap) : 0;
} // endif n
if (!(jsp = ParseJson(g, sap, len, 3)))
PUSH_WARNING(g->Message);
if (jsp && jsp->GetType() == TYPE_JVAL)
jvp = (PJVAL)jsp;
else
jvp->SetValue(jsp);
} else
jvp->SetString(g, sap);
} // endif len
break;
case INT_RESULT:
bigint = *(long long*)sap;
if (bigint > INT_MAX32 || bigint < INT_MIN32)
jvp->SetFloat(g, (double)bigint);
else
jvp->SetInteger(g, (int)bigint);
break;
case REAL_RESULT:
jvp->SetFloat(g, *(double*)sap);
break;
case DECIMAL_RESULT:
jvp->SetFloat(g, atof(MakePSZ(g, args, i)));
break;
case TIME_RESULT:
case ROW_RESULT:
case IMPOSSIBLE_RESULT:
default:
break;
} // endswitch arg_type
return jvp;
} // end of MakeValue
/***********************************************************************/
/* Make a Json value containing the parameter. */
/***********************************************************************/
my_bool Json_Value_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count > 1) {
strcpy(message, "Json_Value cannot accept more than 1 argument");
return true;
} else
CalcLen(args, false, reslen, memlen);
return JsonInit(initid, args, message, false, reslen, memlen);
} // end of Json_Value_init
char *Json_Value(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->Xchk) {
if (!CheckMemory(g, initid, args, 1, false)) {
PJVAL jvp = MakeValue(g, args, 0);
if (!(str = Serialize(g, jvp, NULL, 0)))
str = strcpy(result, g->Message);
} else
str = strcpy(result, g->Message);
// Keep result of constant function
g->Xchk = (g->Alchecked) ? str : NULL;
} else
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // end of Json_Value
void Json_Value_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Value_deinit
/***********************************************************************/
/* Make a Json array containing all the parameters. */
/***********************************************************************/
my_bool Json_Array_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
CalcLen(args, false, reslen, memlen);
return JsonInit(initid, args, message, false, reslen, memlen);
} // end of Json_Array_init
char *Json_Array(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->Xchk) {
if (!CheckMemory(g, initid, args, args->arg_count, false)) {
PJAR arp = new(g)JARRAY;
for (uint i = 0; i < args->arg_count; i++)
arp->AddValue(g, MakeValue(g, args, i));
arp->InitArray(g);
if (!(str = Serialize(g, arp, NULL, 0)))
str = strcpy(result, g->Message);
} else
str = strcpy(result, g->Message);
// Keep result of constant function
g->Xchk = (g->Alchecked) ? str : NULL;
} else
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // end of Json_Array
void Json_Array_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Array_deinit
/***********************************************************************/
/* Add one or several values to a Json array. */
/***********************************************************************/
my_bool Json_Array_Add_Values_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Array_Add must have at least 2 arguments");
return true;
} else if (IsJson(args, 0) != 1) {
strcpy(message, "Json_Array_Add first argument must be a json string");
return true;
} else
CalcLen(args, false, reslen, memlen);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Array_Add_Values_init
char *Json_Array_Add_Values(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->Xchk) {
if (!CheckMemory(g, initid, args, args->arg_count, false)) {
PJAR arp;
PJVAL jvp = MakeValue(g, args, 0);
if (jvp->GetValType() != TYPE_JAR) {
arp = new(g)JARRAY;
arp->AddValue(g, jvp);
} else
arp = jvp->GetArray();
for (uint i = 1; i < args->arg_count; i++)
arp->AddValue(g, MakeValue(g, args, i));
arp->InitArray(g);
str = Serialize(g, arp, NULL, 0);
} // endif CheckMemory
if (!str) {
PUSH_WARNING(g->Message);
str = args->args[0];
} // endif str
// Keep result of constant function
g->Xchk = (g->Alchecked) ? str : NULL;
} else
str = (char*)g->Xchk;
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_Array_Add_Values
void Json_Array_Add_Values_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Array_Add_Values_deinit
/***********************************************************************/
/* Add one value to a Json array. */
/***********************************************************************/
my_bool Json_Array_Add_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Array_Add must have at least 2 arguments");
return true;
} else if (!IsJson(args, 0)) {
strcpy(message, "Json_Array_Add first argument must be a json item");
return true;
} else
CalcLen(args, false, reslen, memlen, true);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Array_Add_init
char *Json_Array_Add(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->Xchk) {
// This constant function was recalled
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // endif Xchk
if (!CheckMemory(g, initid, args, 2, false, true)) {
int *x = NULL, n = 2;
PJSON top;
PJVAL jvp;
PJAR arp;
jvp = MakeValue(g, args, 0);
top = jvp->GetJson();
if (args->arg_count > 2) {
if (args->arg_type[2] == INT_RESULT) {
x = (int*)PlugSubAlloc(g, NULL, sizeof(int));
*x = (int)*(longlong*)args->args[2];
n = 3;
} else if (!args->args[2])
n = 3;
} // endif count
if (CheckPath(g, args, top, jvp, n))
PUSH_WARNING(g->Message);
else if (jvp && jvp->GetValType() == TYPE_JAR) {
arp = jvp->GetArray();
arp->AddValue(g, MakeValue(g, args, 1), x);
arp->InitArray(g);
str = MakeResult(g, args, top, n);
} else
PUSH_WARNING("First argument is not an array");
} // endif CheckMemory
// In case of error or file, return unchanged argument
if (!str)
str = MakePSZ(g, args, 0);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
*res_length = strlen(str);
return str;
} // end of Json_Array_Add
void Json_Array_Add_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Array_Add_deinit
/***********************************************************************/
/* Delete a value from a Json array. */
/***********************************************************************/
my_bool Json_Array_Delete_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Array_Delete must have at lest 2 arguments");
return true;
} else if (!IsJson(args, 0)) {
strcpy(message, "Json_Array_Delete first argument must be a json item");
return true;
} else if (args->arg_type[1] != INT_RESULT) {
strcpy(message, "Json_Array_Delete second argument is not an integer (index)");
return true;
} else
CalcLen(args, false, reslen, memlen, true);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Array_Delete_init
char *Json_Array_Delete(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->Xchk) {
// This constant function was recalled
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // endif Xchk
if (!CheckMemory(g, initid, args, 1, false, true)) {
int n;
PJAR arp;
PJVAL jvp = MakeValue(g, args, 0);
PJSON top = jvp->GetJson();
if (CheckPath(g, args, top, jvp, 2))
PUSH_WARNING(g->Message);
else if (jvp && jvp->GetValType() == TYPE_JAR) {
n = *(int*)args->args[1];
arp = jvp->GetArray();
arp->DeleteValue(n);
arp->InitArray(g);
str = MakeResult(g, args, top);
} else
PUSH_WARNING("First argument is not an array");
} // endif CheckMemory
// In case of error or file, return unchanged argument
if (!str)
str = MakePSZ(g, args, 0);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_Array_Delete
void Json_Array_Delete_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Array_Delete_deinit
/***********************************************************************/
/* Make a Json Oject containing all the parameters. */
/***********************************************************************/
my_bool Json_Object_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
CalcLen(args, true, reslen, memlen);
return JsonInit(initid, args, message, false, reslen, memlen);
} // end of Json_Object_init
char *Json_Object(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->Xchk) {
if (!CheckMemory(g, initid, args, args->arg_count, true)) {
PJOB objp = new(g)JOBJECT;
for (uint i = 0; i < args->arg_count; i++)
objp->SetValue(g, MakeValue(g, args, i), MakeKey(g, args, i));
str = Serialize(g, objp, NULL, 0);
} // endif CheckMemory
if (!str)
str = strcpy(result, g->Message);
// Keep result of constant function
g->Xchk = (g->Alchecked) ? str : NULL;
} else
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // end of Json_Object
void Json_Object_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_deinit
/***********************************************************************/
/* Make a Json Oject containing all not null parameters. */
/***********************************************************************/
my_bool Json_Object_Nonull_init(UDF_INIT *initid, UDF_ARGS *args,
char *message)
{
unsigned long reslen, memlen;
CalcLen(args, true, reslen, memlen);
return JsonInit(initid, args, message, false, reslen, memlen);
} // end of Json_Object_Nonull_init
char *Json_Object_Nonull(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->Xchk) {
if (!CheckMemory(g, initid, args, args->arg_count, true)) {
PJVAL jvp;
PJOB objp = new(g)JOBJECT;
for (uint i = 0; i < args->arg_count; i++)
if (!(jvp = MakeValue(g, args, i))->IsNull())
objp->SetValue(g, jvp, MakeKey(g, args, i));
str = Serialize(g, objp, NULL, 0);
} // endif CheckMemory
if (!str)
str = strcpy(result, g->Message);
// Keep result of constant function
g->Xchk = (g->Alchecked) ? str : NULL;
} else
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // end of Json_Object_Nonull
void Json_Object_Nonull_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_nonull_deinit
/***********************************************************************/
/* Add or replace a value in a Json Object. */
/***********************************************************************/
my_bool Json_Object_Add_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Object_Add must have at least 2 arguments");
return true;
} else if (!IsJson(args, 0)) {
strcpy(message, "Json_Object_Add first argument must be a json item");
return true;
} else
CalcLen(args, false, reslen, memlen, true);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Object_Add_init
char *Json_Object_Add(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *key, *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->Xchk) {
// This constant function was recalled
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // endif Xchk
if (!CheckMemory(g, initid, args, 2, false, true)) {
PJOB jobp;
PJVAL jvp = MakeValue(g, args, 0);
PJSON top = jvp->GetJson();
if (CheckPath(g, args, top, jvp, 2))
PUSH_WARNING(g->Message);
else if (jvp && jvp->GetValType() == TYPE_JOB) {
jobp = jvp->GetObject();
jvp = MakeValue(g, args, 1);
key = MakeKey(g, args, 1);
jobp->SetValue(g, jvp, key);
str = MakeResult(g, args, top);
} else
PUSH_WARNING("First argument is not an object");
} // endif CheckMemory
// In case of error or file, return unchanged argument
if (!str)
str = MakePSZ(g, args, 0);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
*res_length = strlen(str);
return str;
} // end of Json_Object_Add
void Json_Object_Add_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_Add_deinit
/***********************************************************************/
/* Delete a value from a Json object. */
/***********************************************************************/
my_bool Json_Object_Delete_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Object_Delete must have 2 or 3 arguments");
return true;
} else if (!IsJson(args, 0)) {
strcpy(message, "Json_Object_Delete first argument must be a json item");
return true;
} else if (args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Json_Object_Delete second argument must be a key string");
return true;
} else
CalcLen(args, false, reslen, memlen, true);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Object_Delete_init
char *Json_Object_Delete(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->Xchk) {
// This constant function was recalled
str = (char*)g->Xchk;
*res_length = strlen(str);
return str;
} // endif Xchk
if (!CheckMemory(g, initid, args, 1, false, true)) {
char *key;
PJOB jobp;
PJVAL jvp = MakeValue(g, args, 0);
PJSON top = jvp->GetJson();
if (CheckPath(g, args, top, jvp, 2))
PUSH_WARNING(g->Message);
else if (jvp && jvp->GetValType() == TYPE_JOB) {
key = MakeKey(g, args, 1);
jobp = jvp->GetObject();
jobp->DeleteKey(key);
str = MakeResult(g, args, top);
} else
PUSH_WARNING("First argument is not an object");
} // endif CheckMemory
// In case of error or file, return unchanged argument
if (!str)
str = MakePSZ(g, args, 0);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
*res_length = strlen(str);
return str;
} // end of Json_Object_Delete
void Json_Object_Delete_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_Delete_deinit
/***********************************************************************/
/* Returns an array of the Json object keys. */
/***********************************************************************/
my_bool Json_Object_List_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count != 1) {
strcpy(message, "Json_Object_List must have 1 arguments");
return true;
} else if (!IsJson(args, 0)) {
strcpy(message, "Json_Object_List argument must be a json item");
return true;
} else
CalcLen(args, false, reslen, memlen);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Object_List_init
char *Json_Object_List(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (!g->N) {
if (!CheckMemory(g, initid, args, 1, false)) {
PJVAL jvp = MakeValue(g, args, 0);
if (jvp && jvp->GetValType() == TYPE_JOB) {
PJOB jobp = jvp->GetObject();
PJAR jarp = jobp->GetKeyList(g);
if (!(str = Serialize(g, jarp, NULL, 0)))
PUSH_WARNING(g->Message);
} else
PUSH_WARNING("First argument is not an object");
} // endif CheckMemory
if (g->Alchecked) {
// Keep result of constant function
g->Xchk = str;
g->N = 1; // str can be NULL
} // endif Alchecked
} else
str = (char*)g->Xchk;
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_Object_List
void Json_Object_List_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_List_deinit
/***********************************************************************/
/* Make a Json array from values coming from rows. */
/***********************************************************************/
my_bool Json_Array_Grp_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen, n = GetJsonGrpSize();
if (args->arg_count != 1) {
strcpy(message, "Json_Array_Grp can only accept 1 argument");
return true;
} else
CalcLen(args, false, reslen, memlen);
reslen *= n;
memlen += ((memlen - MEMFIX) * (n - 1));
if (JsonInit(initid, args, message, false, reslen, memlen))
return true;
PGLOBAL g = (PGLOBAL)initid->ptr;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
g->Activityp = (PACTIVITY)new(g) JARRAY;
g->N = (int)n;
return false;
} // end of Json_Array_Grp_init
void Json_Array_Grp_add(UDF_INIT *initid, UDF_ARGS *args, char*, char*)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
PJAR arp = (PJAR)g->Activityp;
if (g->N-- > 0)
arp->AddValue(g, MakeValue(g, args, 0));
} // end of Json_Array_Grp_add
char *Json_Array_Grp(UDF_INIT *initid, UDF_ARGS *, char *result,
unsigned long *res_length, char *, char *)
{
char *str;
PGLOBAL g = (PGLOBAL)initid->ptr;
PJAR arp = (PJAR)g->Activityp;
if (g->N < 0)
PUSH_WARNING("Result truncated to json_grp_size values");
arp->InitArray(g);
if (!(str = Serialize(g, arp, NULL, 0)))
str = strcpy(result, g->Message);
*res_length = strlen(str);
return str;
} // end of Json_Array_Grp
void Json_Array_Grp_clear(UDF_INIT *initid, char*, char*)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
g->Activityp = (PACTIVITY)new(g) JARRAY;
g->N = GetJsonGrpSize();
} // end of Json_Array_Grp_clear
void Json_Array_Grp_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Array_Grp_deinit
/***********************************************************************/
/* Make a Json object from values coming from rows. */
/***********************************************************************/
my_bool Json_Object_Grp_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen, n = GetJsonGrpSize();
if (args->arg_count != 2) {
strcpy(message, "Json_Array_Grp can only accept 2 arguments");
return true;
} else
CalcLen(args, true, reslen, memlen);
reslen *= n;
memlen += ((memlen - MEMFIX) * (n - 1));
if (JsonInit(initid, args, message, false, reslen, memlen))
return true;
PGLOBAL g = (PGLOBAL)initid->ptr;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
g->Activityp = (PACTIVITY)new(g) JOBJECT;
g->N = (int)n;
return false;
} // end of Json_Object_Grp_init
void Json_Object_Grp_add(UDF_INIT *initid, UDF_ARGS *args, char*, char*)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
PJOB objp = (PJOB)g->Activityp;
if (g->N-- > 0)
objp->SetValue(g, MakeValue(g, args, 0), MakePSZ(g, args, 1));
} // end of Json_Object_Grp_add
char *Json_Object_Grp(UDF_INIT *initid, UDF_ARGS *, char *result,
unsigned long *res_length, char *, char *)
{
char *str;
PGLOBAL g = (PGLOBAL)initid->ptr;
PJOB objp = (PJOB)g->Activityp;
if (g->N < 0)
PUSH_WARNING("Result truncated to json_grp_size values");
if (!(str = Serialize(g, objp, NULL, 0)))
str = strcpy(result, g->Message);
*res_length = strlen(str);
return str;
} // end of Json_Object_Grp
void Json_Object_Grp_clear(UDF_INIT *initid, char*, char*)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
g->Activityp = (PACTIVITY)new(g) JOBJECT;
g->N = GetJsonGrpSize();
} // end of Json_Object_Grp_clear
void Json_Object_Grp_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Object_Grp_deinit
/***********************************************************************/
/* Get a string value from a Json item. */
/***********************************************************************/
my_bool Json_Get_String_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Get_String must have at least 2 arguments");
return true;
} else if (!IsJson(args, 0) && args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Json_Get_String first argument must be a json item");
return true;
} else if (args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Second argument is not a (jpath) string");
return true;
} else
CalcLen(args, false, reslen, memlen);
if (IsJson(args, 0) == 2) {
char fn[_MAX_PATH];
long fl;
memcpy(fn, args->args[0], args->lengths[0]);
fn[args->lengths[0]] = 0;
fl = GetFileLength(fn);
memlen += fl * 3;
} else
memlen += args->lengths[0] * 3;
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Get_String_init
char *Json_Get_String(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N) {
str = (char*)g->Xchk;
goto fin;
} else if (g->Alchecked)
g->N = 1;
if (!CheckMemory(g, initid, args, 1, false)) {
char *p, *path;
PJSON jsp;
PJSNX jsx;
PJVAL jvp;
if (!g->Xchk) {
jvp = MakeValue(g, args, 0);
if ((p = jvp->GetString())) {
if (!(jsp = ParseJson(g, p, strlen(p)))) {
PUSH_WARNING(g->Message);
return NULL;
} // endif jsp
} else
jsp = jvp->GetJson();
if (g->Mrr) { // First argument is a constant
g->Xchk = jsp;
JsonMemSave(g);
} // endif Mrr
} else
jsp = (PJSON)g->Xchk;
path = MakePSZ(g, args, 1);
jsx = new(g)JSNX(g, jsp, TYPE_STRING, initid->max_length);
if (jsx->SetJpath(g, path)) {
PUSH_WARNING(g->Message);
return NULL;
} // endif SetJpath
jsx->ReadValue(g);
if (!jsx->GetValue()->IsNull())
str = jsx->GetValue()->GetCharValue();
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
} // endif CheckMemory
fin:
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_Get_String
void Json_Get_String_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Get_String_deinit
/***********************************************************************/
/* Get an integer value from a Json item. */
/***********************************************************************/
my_bool Json_Get_Int_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count != 2) {
strcpy(message, "Json_Get_Int must have 2 arguments");
return true;
} else if (!IsJson(args, 0) && args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Json_Get_Int first argument must be a json item");
return true;
} else if (args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Second argument is not a (jpath) string");
return true;
} else
CalcLen(args, false, reslen, memlen);
memlen += 1000; // TODO: calculate this
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Get_Int_init
long long Json_Get_Int(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N)
return (g->Xchk) ? *(long long*)g->Xchk : NULL;
else if (g->Alchecked)
g->N = 1;
if (!CheckMemory(g, initid, args, 1, false)) {
char *p, *path;
long long n;
PJSON jsp;
PJSNX jsx;
PJVAL jvp;
if (!g->Xchk) {
jvp = MakeValue(g, args, 0);
if ((p = jvp->GetString())) {
if (!(jsp = ParseJson(g, p, strlen(p)))) {
PUSH_WARNING(g->Message);
return NULL;
} // endif jsp
} else
jsp = jvp->GetJson();
if (g->Mrr) { // First argument is a constant
g->Xchk = jsp;
JsonMemSave(g);
} // endif Mrr
} else
jsp = (PJSON)g->Xchk;
path = MakePSZ(g, args, 1);
jsx = new(g)JSNX(g, jsp, TYPE_BIGINT);
if (jsx->SetJpath(g, path)) {
PUSH_WARNING(g->Message);
return NULL;
} // endif SetJpath
jsx->ReadValue(g);
if (jsx->GetValue()->IsNull()) {
PUSH_WARNING("Value not found");
return NULL;
} // endif IsNull
n = jsx->GetValue()->GetBigintValue();
if (g->Alchecked) {
// Keep result of constant function
long long *np = (long long*)PlugSubAlloc(g, NULL, sizeof(long long));
*np = n;
g->Xchk = np;
} // endif Alchecked
return n;
} else
return NULL;
} // end of Json_Get_Int
void Json_Get_Int_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Get_Int_deinit
/***********************************************************************/
/* Get a double value from a Json item. */
/***********************************************************************/
my_bool Json_Get_Real_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen;
if (args->arg_count < 2) {
strcpy(message, "Json_Get_Real must have at least 2 arguments");
return true;
} else if (!IsJson(args, 0) && args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Json_Get_Real first argument must be a json item");
return true;
} else if (args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Second argument is not a (jpath) string");
return true;
} else if (args->arg_count > 2) {
if (args->arg_type[2] != INT_RESULT) {
strcpy(message, "Third argument is not an integer (decimals)");
return true;
} else
initid->decimals = (uint)*(longlong*)args->args[2];
} else
initid->decimals = 15;
CalcLen(args, false, reslen, memlen);
memlen += 1000; // TODO: calculate this
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Get_Real_init
double Json_Get_Real(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N)
return (g->Xchk) ? *(double*)g->Xchk : NULL;
else if (g->Alchecked)
g->N = 1;
if (!CheckMemory(g, initid, args, 1, false)) {
char *p, *path;
double d;
PJSON jsp;
PJSNX jsx;
PJVAL jvp;
if (!g->Xchk) {
jvp = MakeValue(g, args, 0);
if ((p = jvp->GetString())) {
if (!(jsp = ParseJson(g, p, strlen(p)))) {
PUSH_WARNING(g->Message);
return NULL;
} // endif jsp
} else
jsp = jvp->GetJson();
if (g->Mrr) { // First argument is a constant
g->Xchk = jsp;
JsonMemSave(g);
} // endif Mrr
} else
jsp = (PJSON)g->Xchk;
path = MakePSZ(g, args, 1);
jsx = new(g)JSNX(g, jsp, TYPE_DOUBLE);
if (jsx->SetJpath(g, path)) {
PUSH_WARNING(g->Message);
return NULL;
} // endif SetJpath
jsx->ReadValue(g);
if (jsx->GetValue()->IsNull()) {
PUSH_WARNING("Value not found");
return NULL;
} // endif IsNull
d = jsx->GetValue()->GetFloatValue();
if (g->Alchecked) {
// Keep result of constant function
double *dp = (double*)PlugSubAlloc(g, NULL, sizeof(double));
*dp = d;
g->Xchk = dp;
} // endif Alchecked
return d;
} else
return NULL;
} // end of Json_Get_Real
void Json_Get_Real_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Get_Real_deinit
/***********************************************************************/
/* Locate a value in a Json tree. */
/***********************************************************************/
my_bool Json_Locate_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen, more = 1000;
if (args->arg_count < 2) {
strcpy(message, "Json_Locate must have at least 2 arguments");
return true;
} else if (!IsJson(args, 0) && args->arg_type[0] != STRING_RESULT) {
strcpy(message, "Json_Locate first argument must be a json item");
return true;
} else if (args->arg_count > 2)
if (args->arg_type[2] != INT_RESULT) {
strcpy(message, "Third argument is not an integer (memory)");
return true;
} else
more = (ulong)*(longlong*)args->args[2];
CalcLen(args, false, reslen, memlen);
memlen += more; // TODO: calculate this
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Locate_init
char *Json_Locate(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *path = NULL;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N) {
path = (char*)g->Xchk;
*res_length = (path) ? strlen(path) : 0;
return path;
} else if (g->Alchecked)
g->N = 1;
if (!CheckMemory(g, initid, args, 1, false)) {
char *p;
int rc;
PJVAL jvp;
PJSON jsp;
PJSNX jsx;
// Save stack and allocation environment and prepare error return
if (g->jump_level == MAX_JUMP) {
PUSH_WARNING(MSG(TOO_MANY_JUMPS));
return NULL;
} // endif jump_level
if ((rc= setjmp(g->jumper[++g->jump_level])) != 0) {
PUSH_WARNING(g->Message);
goto err;
} // endif rc
if (!g->Xchk) {
jvp = MakeValue(g, args, 0);
if ((p = jvp->GetString())) {
if (!(jsp = ParseJson(g, p, strlen(p)))) {
PUSH_WARNING(g->Message);
goto err;
} // endif jsp
} else
jsp = jvp->GetJson();
if (g->Mrr) { // First argument is a constant
g->Xchk = jsp;
JsonMemSave(g);
} // endif Mrr
} else
jsp = (PJSON)g->Xchk;
jsx = new(g)JSNX(g, jsp, TYPE_STRING);
path = jsx->Locate(g, jsp, args->args[1], args->arg_type[1], args->lengths[1]);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = path;
err:
g->jump_level--;
*res_length = (path) ? strlen(path) : 0;
return path;
} else
return NULL;
} // end of Json_Locate
void Json_Locate_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Locate_deinit
/***********************************************************************/
/* Returns a json file as a string. */
/***********************************************************************/
my_bool Json_File_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen, fl, more = 1024;
if (args->arg_count < 1 || args->arg_count > 4) {
strcpy(message, "Json_File only accepts 1 to 4 arguments");
return true;
} else if (args->arg_type[0] != STRING_RESULT) {
strcpy(message, "Json_File first argument must be a (string) file name");
return true;
} else if (args->arg_count > 1 && args->arg_type[1] != INT_RESULT) {
strcpy(message, "Second argument is not an integer (check)");
return true;
} else if (args->arg_count > 2 && args->arg_type[2] != INT_RESULT) {
strcpy(message, "Third argument is not an integer (pretty)");
return true;
} else if (args->arg_count > 3) {
if (args->arg_type[3] != INT_RESULT) {
strcpy(message, "Fourth argument is not an integer (memory)");
return true;
} else
more += (ulong)*(longlong*)args->args[2];
} // endifs
initid->maybe_null = 1;
CalcLen(args, false, reslen, memlen);
fl = GetFileLength(args->args[0]);
if (initid->const_item)
more += fl;
if (args->arg_count > 1 && *(longlong*)args->args[1])
more += fl * M;
memlen += more;
return JsonInit(initid, args, message, false, reslen, memlen);
} // end of Json_File_init
char *Json_File(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str, *fn;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N) {
str = (char*)g->Xchk;
goto fin;
} else if (g->Alchecked)
g->N = 1;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
fn = MakePSZ(g, args, 0);
if (args->arg_count > 1 && *(longlong*)args->args[1]) {
char *memory;
int len, pretty;
HANDLE hFile;
MEMMAP mm;
PJSON jsp;
pretty = (args->arg_count > 2) ? (int)*(longlong*)args->args[2] : 3;
/*******************************************************************/
/* Create the mapping file object. */
/*******************************************************************/
hFile = CreateFileMap(g, fn, &mm, MODE_READ, false);
if (hFile == INVALID_HANDLE_VALUE) {
DWORD rc = GetLastError();
if (!(*g->Message))
sprintf(g->Message, MSG(OPEN_MODE_ERROR), "map", (int)rc, fn);
PUSH_WARNING(g->Message);
return NULL;
} // endif hFile
/*******************************************************************/
/* Get the file size (assuming file is smaller than 4 GB) */
/*******************************************************************/
len = mm.lenL;
memory = (char *)mm.memory;
if (!len) { // Empty or deleted file
CloseFileHandle(hFile);
return NULL;
} // endif len
if (!memory) {
CloseFileHandle(hFile);
sprintf(g->Message, MSG(MAP_VIEW_ERROR), fn, GetLastError());
return NULL;
} // endif Memory
CloseFileHandle(hFile); // Not used anymore
hFile = INVALID_HANDLE_VALUE; // For Fblock
/*********************************************************************/
/* Parse the json file and allocate its tree structure. */
/*********************************************************************/
g->Message[0] = 0;
if (!(jsp = ParseJson(g, memory, len, pretty))) {
PUSH_WARNING(g->Message);
str = NULL;
} // endif jsp
CloseMemMap(memory, len);
if (jsp && !(str = Serialize(g, jsp, NULL, 0)))
PUSH_WARNING(g->Message);
} else
str = GetJsonFile(g, fn);
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
fin:
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_File
void Json_File_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_File_deinit
/***********************************************************************/
/* Make a json file from a json item. */
/***********************************************************************/
my_bool Json_Make_File_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
unsigned long reslen, memlen, more = 1024;
if (args->arg_count < 2 || args->arg_count > 3) {
strcpy(message, "Json_Make_File only accepts 2 or 3 arguments");
return true;
} else if (IsJson(args, 0) != 1) {
strcpy(message, "Json_Make_File first argument must be a json item");
return true;
} else if (args->arg_type[1] != STRING_RESULT) {
strcpy(message, "Second argument must be a (string) file name");
return true;
} else if (args->arg_count > 2 && args->arg_type[2] != INT_RESULT) {
strcpy(message, "Third argument is not an integer (pretty)");
return true;
} // endifs
CalcLen(args, false, reslen, memlen);
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of Json_Make_File_init
char *Json_Make_File(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *, char *)
{
char *str, *fn, *msg;
int pretty;
PJVAL jvp;
PGLOBAL g = (PGLOBAL)initid->ptr;
if (g->N) {
str = (char*)g->Xchk;
goto fin;
} else if (g->Alchecked)
g->N = 1;
PlugSubSet(g, g->Sarea, g->Sarea_Size);
if (!g->Xchk) {
jvp = MakeValue(g, args, 0);
if (g->Mrr) { // First argument is a constant
g->Xchk = jvp;
JsonMemSave(g);
} // endif Mrr
} else
jvp = (PJVAL)g->Xchk;
fn = MakePSZ(g, args, 1);
pretty = (args->arg_count > 2) ? (int)*(longlong*)args->args[2] : 2;
if ((msg = Serialize(g, jvp->GetJson(), fn, pretty)))
PUSH_WARNING(msg);
str= fn;
if (g->Alchecked)
// Keep result of constant function
g->Xchk = str;
fin:
*res_length = (str) ? strlen(str) : 0;
return str;
} // end of Json_Make_File
void Json_Make_File_deinit(UDF_INIT* initid)
{
PlugExit((PGLOBAL)initid->ptr);
} // end of Json_Make_File_deinit
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