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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <common/OdbcData.hpp>
#include <common/DiagArea.hpp>
#include <common/DataType.hpp>
#include "HandleRoot.hpp"
#include "HandleDbc.hpp"
#include "HandleDesc.hpp"
HandleDesc::HandleDesc(HandleDbc* pDbc) :
m_dbc(pDbc),
m_descArea(this, m_descSpec)
{
}
HandleDesc::~HandleDesc()
{
}
void
HandleDesc::ctor(Ctx& ctx)
{
}
void
HandleDesc::dtor(Ctx& ctx)
{
}
// allocate and free handles (no valid case)
void
HandleDesc::sqlAllocHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase** ppChild)
{
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "inappropriate handle type");
}
void
HandleDesc::sqlFreeHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase* ppChild)
{
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "inappropriate handle type");
}
// set and get descriptor values
void
HandleDesc::sqlSetDescField(Ctx& ctx, SQLSMALLINT recNumber, SQLSMALLINT fieldIdentifier, SQLPOINTER value, SQLINTEGER bufferLength)
{
const DescSpec& spec = m_descArea.findSpec(fieldIdentifier);
if (spec.m_pos == Desc_pos_end) {
ctx.pushStatus(Sqlstate::_HY091, Error::Gen, "invalid descriptor id %d", (int)fieldIdentifier);
return;
}
OdbcData data;
data.copyin(ctx, spec.m_type, value, bufferLength);
if (! ctx.ok())
return;
const bool header = (spec.m_pos == Desc_pos_header);
const bool record = (spec.m_pos == Desc_pos_record);
ctx_assert(header || record);
DescArea& area = m_descArea;
if (header) {
area.getHeader().setField(ctx, fieldIdentifier, data);
}
if (record) {
if (recNumber < 0) {
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "invalid record number %d", (int)recNumber);
return;
}
if (recNumber == 0) { // bookmark record
if (area.getUsage() == Desc_usage_IPD) {
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "cannot set bookmark IPD");
return;
}
if (area.getUsage() == Desc_usage_APD) {
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "cannot set bookmark APD");
return;
}
}
area.getRecord(recNumber).setField(ctx, fieldIdentifier, data);
}
}
void
HandleDesc::sqlGetDescField(Ctx& ctx, SQLSMALLINT recNumber, SQLSMALLINT fieldIdentifier, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength, SQLSMALLINT* stringLength2)
{
const DescSpec& spec = m_descArea.findSpec(fieldIdentifier);
if (spec.m_pos == Desc_pos_end) {
ctx.pushStatus(Sqlstate::_HY091, Error::Gen, "invalid descriptor id %d", (int)fieldIdentifier);
return;
}
const bool header = (spec.m_pos == Desc_pos_header);
const bool record = (spec.m_pos == Desc_pos_record);
ctx_assert(header || record);
DescArea& area = m_descArea;
OdbcData data;
if (header) {
area.getHeader().getField(ctx, fieldIdentifier, data);
if (! ctx.ok())
return;
}
if (record) {
if (recNumber < 0) {
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "invalid record number %d", (int)recNumber);
return;
}
if (recNumber == 0) { // bookmark record
if (area.getUsage() == Desc_usage_IPD) {
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "cannot get bookmark IPD");
return;
}
if (area.getUsage() == Desc_usage_IRD) {
// XXX check SQL_ATTR_USE_BOOKMARK != SQL_UB_OFF
}
}
if ((unsigned)recNumber > area.getCount()) {
ctx.setCode(SQL_NO_DATA);
return;
}
area.getRecord(recNumber).getField(ctx, fieldIdentifier, data);
if (! ctx.ok())
return;
}
// if no data, return success and undefined value
if (data.type() == OdbcData::Undef)
return;
data.copyout(ctx, value, bufferLength, stringLength, stringLength2);
}
void
HandleDesc::sqlColAttribute(Ctx& ctx, SQLUSMALLINT columnNumber, SQLUSMALLINT fieldIdentifier, SQLPOINTER characterAttribute, SQLSMALLINT bufferLength, SQLSMALLINT* stringLength, SQLPOINTER numericAttribute)
{
ctx_log3(("sqlColAttribute col=%d id=%d", columnNumber, fieldIdentifier));
if (fieldIdentifier == SQL_COLUMN_LENGTH) { // XXX iODBC workaround
fieldIdentifier = SQL_DESC_LENGTH;
}
if (fieldIdentifier == 1205 || fieldIdentifier == 1206) {
ctx_log2(("ignore unknown OSQL fieldIdentifier %d", (int)fieldIdentifier));
if (characterAttribute != 0)
*(char*)characterAttribute = 0;
if (stringLength != 0)
*stringLength = 0;
return;
}
const DescSpec& spec = m_descArea.findSpec(fieldIdentifier);
if (spec.m_pos == Desc_pos_end) {
ctx.pushStatus(Sqlstate::_HY091, Error::Gen, "invalid descriptor id %d", (int)fieldIdentifier);
return;
}
if (spec.m_type == OdbcData::Sqlchar || spec.m_type == OdbcData::Sqlstate)
sqlGetDescField(ctx, columnNumber, fieldIdentifier, characterAttribute, bufferLength, 0, stringLength);
else {
sqlGetDescField(ctx, columnNumber, fieldIdentifier, numericAttribute, -1, 0);
}
if (ctx.getCode() == SQL_NO_DATA) {
ctx.setCode(SQL_SUCCESS);
ctx.pushStatus(Sqlstate::_07009, Error::Gen, "invalid column number %d", (int)columnNumber);
}
}
void
HandleDesc::sqlColAttributes(Ctx& ctx, SQLUSMALLINT icol, SQLUSMALLINT fdescType, SQLPOINTER rgbDesc, SQLSMALLINT cbDescMax, SQLSMALLINT* pcbDesc, SQLINTEGER* pfDesc)
{
ctx_log3(("sqlColAttributes col=%hu id=%hu", icol, fdescType));
SQLUSMALLINT columnNumber = icol;
SQLUSMALLINT fieldIdentifier;
// XXX incomplete
if (fdescType == SQL_COLUMN_TYPE) {
fieldIdentifier = SQL_DESC_TYPE;
} else if (fdescType == SQL_COLUMN_PRECISION) {
SQLSMALLINT type;
sqlGetDescField(ctx, columnNumber, SQL_DESC_TYPE, static_cast<SQLPOINTER>(&type), -1, 0);
if (! ctx.ok())
return;
switch (type) {
case SQL_CHAR:
case SQL_VARCHAR:
case SQL_BINARY:
case SQL_VARBINARY:
case SQL_LONGVARCHAR:
case SQL_LONGVARBINARY:
case SQL_DATE:
fieldIdentifier = SQL_DESC_LENGTH;
break;
default:
fieldIdentifier = SQL_DESC_PRECISION;
break;
}
} else if (fdescType == SQL_COLUMN_SCALE) {
SQLSMALLINT type;
sqlGetDescField(ctx, columnNumber, SQL_DESC_TYPE, static_cast<SQLPOINTER>(&type), -1, 0);
if (! ctx.ok())
return;
switch (type) {
default:
fieldIdentifier = SQL_DESC_SCALE;
break;
}
} else if (fdescType == SQL_COLUMN_LENGTH) {
SQLSMALLINT type;
sqlGetDescField(ctx, columnNumber, SQL_DESC_TYPE, static_cast<SQLPOINTER>(&type), -1, 0);
if (! ctx.ok())
return;
switch (type) {
default:
fieldIdentifier = SQL_DESC_LENGTH;
break;
}
} else {
fieldIdentifier = fdescType;
}
sqlColAttribute(ctx, columnNumber, fieldIdentifier, rgbDesc, cbDescMax, pcbDesc, pfDesc);
}
// set and get several common descriptor values
void
HandleDesc::sqlSetDescRec(Ctx& ctx, SQLSMALLINT recNumber, SQLSMALLINT type, SQLSMALLINT subType, SQLINTEGER length, SQLSMALLINT precision, SQLSMALLINT scale, SQLPOINTER data, SQLINTEGER* stringLength, SQLINTEGER* indicator)
{
sqlSetDescField(ctx, recNumber, SQL_DESC_TYPE, reinterpret_cast<SQLPOINTER>(type), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_DATETIME_INTERVAL_CODE, reinterpret_cast<SQLPOINTER>(subType), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_OCTET_LENGTH, reinterpret_cast<SQLPOINTER>(length), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_PRECISION, reinterpret_cast<SQLPOINTER>(precision), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_SCALE, reinterpret_cast<SQLPOINTER>(scale), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_DATA_PTR, data, -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_OCTET_LENGTH_PTR, reinterpret_cast<SQLPOINTER>(stringLength), -1);
sqlSetDescField(ctx, recNumber, SQL_DESC_INDICATOR_PTR, reinterpret_cast<SQLPOINTER>(indicator), -1);
}
void
HandleDesc::sqlGetDescRec(Ctx& ctx, SQLSMALLINT recNumber, SQLCHAR* name, SQLSMALLINT bufferLength, SQLSMALLINT* stringLength, SQLSMALLINT* type, SQLSMALLINT* subType, SQLINTEGER* length, SQLSMALLINT* precision, SQLSMALLINT* scale, SQLSMALLINT* nullable)
{
sqlGetDescField(ctx, recNumber, SQL_DESC_NAME, reinterpret_cast<SQLPOINTER>(name), bufferLength, 0, stringLength);
sqlGetDescField(ctx, recNumber, SQL_DESC_TYPE, reinterpret_cast<SQLPOINTER>(type), -1, 0);
sqlGetDescField(ctx, recNumber, SQL_DESC_DATETIME_INTERVAL_CODE, reinterpret_cast<SQLPOINTER>(subType), -1, 0);
sqlGetDescField(ctx, recNumber, SQL_DESC_OCTET_LENGTH, reinterpret_cast<SQLPOINTER>(length), -1, 0);
sqlGetDescField(ctx, recNumber, SQL_DESC_PRECISION, reinterpret_cast<SQLPOINTER>(precision), -1, 0);
sqlGetDescField(ctx, recNumber, SQL_DESC_SCALE, reinterpret_cast<SQLPOINTER>(scale), -1, 0);
sqlGetDescField(ctx, recNumber, SQL_DESC_NULLABLE, reinterpret_cast<SQLPOINTER>(nullable), -1, 0);
}
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