static GdaRow *
fetch_next_oracle_row (GdaOracleRecordset *model, G_GNUC_UNUSED gboolean do_store, GError **error)
{
int result;
GdaRow *prow = NULL;
GdaOraclePStmt *ps = GDA_ORACLE_PSTMT (((GdaDataSelect*)model)->prep_stmt);
OracleConnectionData *cdata;
GdaConnection *cnc;
cnc = gda_data_select_get_connection ((GdaDataSelect*) model);
cdata = (OracleConnectionData*) gda_connection_internal_get_provider_data_error (cnc, error);
if (!cdata)
return NULL;
/* fetch row */
if (cdata->major_version > 9)
result = OCIStmtFetch2 (ps->hstmt,
cdata->herr,
(ub4) 1,
(ub2) OCI_FETCH_NEXT,
(sb4) 1,
(ub4) OCI_DEFAULT);
else
result = OCIStmtFetch (ps->hstmt,
cdata->herr,
(ub4) 1,
(ub2) OCI_FETCH_NEXT,
(ub4) OCI_DEFAULT);
if (result == OCI_NO_DATA) {
GDA_DATA_SELECT (model)->advertized_nrows = model->priv->next_row_num;
return NULL;
}
else {
GdaConnectionEvent *event;
if ((event = gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not fetch next row")))) {
/* set @error */
g_set_error (error, GDA_SERVER_PROVIDER_ERROR, GDA_SERVER_PROVIDER_DATA_ERROR,
"%s", gda_connection_event_get_description (event));
return NULL;
}
}
prow = new_row ((GdaDataSelect*) model, cnc, ps);
gda_data_select_take_row ((GdaDataSelect*) model, prow, model->priv->next_row_num);
model->priv->next_row_num ++;
return prow;
}
void
_gda_oracle_set_value (GValue *value,
GdaOracleValue *ora_value,
GdaConnection *cnc)
{
GdaTime gtime;
GdaTimestamp timestamp;
sb2 year;
ub1 month;
ub1 day;
ub1 hour;
ub1 min;
ub1 sec;
if (ora_value->indicator == -1) {
gda_value_set_null (value);
return;
}
gda_value_reset_with_type (value, ora_value->g_type);
switch (ora_value->s_type) {
case GDA_STYPE_INT:
g_value_set_int (value, *((gint *) ora_value->value));
break;
case GDA_STYPE_STRING: {
gchar *string_buffer, *tmp;
string_buffer = (gchar *) ora_value->value;
string_buffer [ora_value->rlen] = '\0';
g_strchomp (string_buffer);
//tmp = g_locale_to_utf8 (string_buffer, -1, NULL, NULL, NULL);
//g_value_take_string (value, tmp);
g_value_set_string (value, string_buffer);
if (ora_value->use_callback) {
g_free (string_buffer);
ora_value->value = NULL;
}
break;
}
case GDA_STYPE_BOOLEAN:
g_value_set_boolean (value, (*((gint *) ora_value->value)) ? TRUE: FALSE);
break;
case GDA_STYPE_DATE: {
GDate *date;
OCIDateGetDate ((CONST OCIDate *) ora_value->value,
(sb2 *) &year,
(ub1 *) &month,
(ub1 *) &day);
date = g_date_new_dmy (day, month, year);
g_value_take_boxed (value, date);
break;
}
case GDA_STYPE_TIME: {
OCIDateGetTime ((CONST OCIDate *) ora_value->value,
(ub1 *) &hour,
(ub1 *) &min,
(ub1 *) &sec);
gtime.hour = hour;
gtime.minute = min;
gtime.second = sec;
gda_value_set_time (value, >ime);
break;
}
case GDA_STYPE_TIMESTAMP: {
OCIDateGetDate ((CONST OCIDate *) ora_value->value,
(sb2 *) &year,
(ub1 *) &month,
(ub1 *) &day);
OCIDateGetTime ((CONST OCIDate *) ora_value->value,
(ub1 *) &hour,
(ub1 *) &min,
(ub1 *) &sec);
timestamp.year = year;
timestamp.month = month;
timestamp.day = day;
timestamp.hour = hour;
timestamp.minute = min;
timestamp.second = sec;
timestamp.fraction = 0;
timestamp.timezone = 0;
gda_value_set_timestamp(value, ×tamp);
break;
}
case GDA_STYPE_INT64:
TO_IMPLEMENT; /* test that value fits in */
g_value_set_int64 (value, atoll (ora_value->value));
break;
case GDA_STYPE_UINT64:
TO_IMPLEMENT; /* test that value fits in */
g_value_set_uint64 (value, atoll (ora_value->value));
break;
case GDA_STYPE_UINT:
TO_IMPLEMENT; /* test that value fits in */
g_value_set_uint (value, *((guint*) ora_value->value));
break;
case GDA_STYPE_FLOAT:
g_value_set_float (value, *((gfloat*) ora_value->value));
break;
case GDA_STYPE_DOUBLE:
g_value_set_double (value, *((gdouble*) ora_value->value));
break;
case GDA_STYPE_LONG:
TO_IMPLEMENT;
break;
case GDA_STYPE_ULONG:
TO_IMPLEMENT;
break;
case GDA_STYPE_NUMERIC: {
GdaNumeric *numeric;
gchar *tmp;
g_assert (!ora_value->use_callback);
tmp = g_malloc0 (ora_value->defined_size);
memcpy (tmp, ora_value->value, ora_value->defined_size);
tmp [ora_value->rlen] = '\0';
g_strchomp (tmp);
numeric = gda_numeric_new ();
gda_numeric_set_from_string (numeric, tmp);
g_free (tmp);
gda_numeric_set_precision (numeric, ora_value->precision);
gda_numeric_set_width (numeric, ora_value->scale);
g_value_take_boxed (value, numeric);
break;
}
case GDA_STYPE_BINARY: {
GdaBinary *bin;
bin = g_new0 (GdaBinary, 1);
if (ora_value->use_callback) {
bin->data = ora_value->value;
ora_value->value = NULL;
}
else {
bin->data = g_new (guchar, ora_value->rlen);
memcpy (bin->data, ora_value->value, ora_value->rlen);
}
bin->binary_length = ora_value->rlen;
gda_value_take_binary (value, bin);
break;
}
case GDA_STYPE_BLOB: {
GdaBlob *blob;
GdaBlobOp *op;
OCILobLocator *lobloc;
OracleConnectionData *cdata;
gint result;
/* REM: we need to make a "copy" of the lob locator to give to the GdaOracleblobOp object */
cdata = (OracleConnectionData*) gda_connection_internal_get_provider_data_error (cnc, NULL);
if (!cdata) {
gda_connection_add_event_string (cnc, _("Invalid Oracle handle"));
gda_value_set_null (value);
return;
}
result = OCIDescriptorAlloc ((dvoid *) cdata->henv, (dvoid **) &lobloc,
(ub4) gda_oracle_blob_type (ora_value->sql_type), (size_t) 0, (dvoid **) 0);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not allocate Lob locator"))) {
gda_value_set_null (value);
return;
}
result = OCILobAssign ((dvoid *) cdata->henv, (dvoid *) cdata->herr, ora_value->value, &lobloc);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not copy Lob locator"))) {
gda_value_set_null (value);
return;
}
blob = g_new0 (GdaBlob, 1);
op = gda_oracle_blob_op_new (cnc, lobloc);
gda_blob_set_op (blob, op);
g_object_unref (op);
gda_value_take_blob (value, blob);
break;
}
case GDA_STYPE_CHAR: {
TO_IMPLEMENT; /* test that value fits in */
g_value_set_schar (value, *((gint8*) ora_value->value));
break;
}
case GDA_STYPE_SHORT: {
TO_IMPLEMENT; /* test that value fits in */
gda_value_set_short (value, *((gint*) ora_value->value));
break;
}
case GDA_STYPE_GTYPE:
TO_IMPLEMENT;
break;
case GDA_STYPE_GEOMETRIC_POINT:
TO_IMPLEMENT;
break;
case GDA_STYPE_NULL:
gda_value_set_null (value);
break;
default:
g_assert_not_reached ();
}
}
/*
* the @ps struct is modified and transferred to the new data model created in
* this function
*/
GdaDataModel *
gda_oracle_recordset_new (GdaConnection *cnc, GdaOraclePStmt *ps, GdaSet *exec_params,
GdaDataModelAccessFlags flags, GType *col_types)
{
GdaOracleRecordset *model;
OracleConnectionData *cdata;
gint i;
GdaDataModelAccessFlags rflags;
gint nb_rows = -1;
g_return_val_if_fail (GDA_IS_CONNECTION (cnc), NULL);
g_return_val_if_fail (ps != NULL, NULL);
cdata = (OracleConnectionData*) gda_connection_internal_get_provider_data_error (cnc, NULL);
if (!cdata)
return NULL;
/* make sure @ps reports the correct number of columns using the API */
if (_GDA_PSTMT (ps)->ncols < 0) {
ub4 ncolumns;
int result;
/* get the number of columns in the result set */
result = OCIAttrGet ((dvoid *) ps->hstmt,
(ub4) OCI_HTYPE_STMT,
(dvoid *) &ncolumns,
(ub4 *) 0,
(ub4) OCI_ATTR_PARAM_COUNT,
cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the number of columns in the result set")))
return NULL;
_GDA_PSTMT (ps)->ncols = ncolumns;
}
/* completing @ps if not yet done */
if (!_GDA_PSTMT (ps)->types && (_GDA_PSTMT (ps)->ncols > 0)) {
/* create prepared statement's columns */
GSList *list;
GList *ora_values = NULL;
for (i = 0; i < _GDA_PSTMT (ps)->ncols; i++)
_GDA_PSTMT (ps)->tmpl_columns = g_slist_prepend (_GDA_PSTMT (ps)->tmpl_columns,
gda_column_new ());
_GDA_PSTMT (ps)->tmpl_columns = g_slist_reverse (_GDA_PSTMT (ps)->tmpl_columns);
/* create prepared statement's types, all types are initialized to GDA_TYPE_NULL */
_GDA_PSTMT (ps)->types = g_new (GType, _GDA_PSTMT (ps)->ncols);
for (i = 0; i < _GDA_PSTMT (ps)->ncols; i++)
_GDA_PSTMT (ps)->types [i] = GDA_TYPE_NULL;
if (col_types) {
for (i = 0; ; i++) {
if (col_types [i] > 0) {
if (col_types [i] == G_TYPE_NONE)
break;
if (i >= _GDA_PSTMT (ps)->ncols) {
g_warning (_("Column %d out of range (0-%d), ignoring its specified type"), i,
_GDA_PSTMT (ps)->ncols - 1);
break;
}
else
_GDA_PSTMT (ps)->types [i] = col_types [i];
}
}
}
/* fill GdaColumn's data and define the GdaOracleValue structures */
for (i=0, list = _GDA_PSTMT (ps)->tmpl_columns;
i < GDA_PSTMT (ps)->ncols;
i++, list = list->next) {
GdaColumn *column;
int result;
GdaOracleValue *ora_value;
gboolean use_callback = FALSE;
ora_value = g_new0 (GdaOracleValue, 1);
ora_values = g_list_prepend (ora_values, ora_value);
/* parameter to get attributes */
result = OCIParamGet (ps->hstmt,
OCI_HTYPE_STMT,
cdata->herr,
(dvoid **) &(ora_value->pard),
(ub4) i+1);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the Oracle parameter descripter in the result set"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
/* data size */
result = OCIAttrGet ((dvoid *) (ora_value->pard),
OCI_DTYPE_PARAM,
&(ora_value->defined_size),
0,
(ub4) OCI_ATTR_DATA_SIZE,
cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the parameter defined size"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
ora_value->defined_size++;
/* data type */
result = OCIAttrGet ((dvoid *) (ora_value->pard),
OCI_DTYPE_PARAM,
&(ora_value->sql_type),
0,
OCI_ATTR_DATA_TYPE,
cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the parameter data type"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
result = OCIAttrGet ((dvoid *) (ora_value->pard),
OCI_DTYPE_PARAM,
&(ora_value->precision),
0,
OCI_ATTR_PRECISION,
cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the type's precision"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
result = OCIAttrGet ((dvoid *) (ora_value->pard),
OCI_DTYPE_PARAM,
&(ora_value->scale),
0,
OCI_ATTR_SCALE,
cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get the type's scale"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
/* column's name */
text *name;
ub4 name_len;
column = GDA_COLUMN (list->data);
result = OCIAttrGet ((dvoid *) (ora_value->pard),
(ub4) OCI_DTYPE_PARAM,
(dvoid **) &name,
(ub4 *) &name_len,
(ub4) OCI_ATTR_NAME,
(OCIError *) cdata->herr);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not get column name in the result set"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
gchar *name_buffer;
name_buffer = g_new (gchar, name_len + 1);
memcpy (name_buffer, name, name_len);
name_buffer [name_len] = '\0';
gda_column_set_name (column, name_buffer);
gda_column_set_description (column, name_buffer);
g_free (name_buffer);
/* for data fetching */
if (_GDA_PSTMT (ps)->types [i] != GDA_TYPE_NULL)
ora_value->sql_type = _g_type_to_oracle_sqltype (_GDA_PSTMT (ps)->types [i]);
switch (ora_value->sql_type) {
case SQLT_CHR: /* for G_TYPE_STRING => request SQLT_CHR */
case SQLT_STR:
case SQLT_VCS:
case SQLT_RID:
case SQLT_AVC:
case SQLT_AFC:
ora_value->sql_type = SQLT_CHR;
if (ora_value->defined_size == 1)
use_callback = TRUE;
break;
case SQLT_INT:
ora_value->defined_size = sizeof (gint);
break;
case SQLT_FLT:
case SQLT_BFLOAT:
ora_value->defined_size = sizeof (gfloat);
break;
case SQLT_BDOUBLE:
ora_value->defined_size = sizeof (gdouble);
break;
case SQLT_DAT: /* request OCIDate */
ora_value->sql_type = SQLT_ODT;
break;
case SQLT_NUM: /* for GDA_TYPE_NUMERIC => request SQLT_CHR */
case SQLT_VNU:
ora_value->sql_type = SQLT_CHR;
break;
case SQLT_LBI:
case SQLT_LVB:
case SQLT_LVC:
case SQLT_LNG:
case SQLT_VBI:
case SQLT_BIN:
use_callback = TRUE;
break;
default:
use_callback = TRUE;
break;
}
if (_GDA_PSTMT (ps)->types [i] != GDA_TYPE_NULL)
ora_value->g_type = _GDA_PSTMT (ps)->types [i];
else
ora_value->g_type = _oracle_sqltype_to_g_type (ora_value->sql_type, ora_value->precision,
ora_value->scale);
if (ora_value->g_type == GDA_TYPE_BLOB) {
/* allocate a Lob locator */
OCILobLocator *lob;
result = OCIDescriptorAlloc ((dvoid *) cdata->henv, (dvoid **) &lob,
(ub4) gda_oracle_blob_type (ora_value->sql_type),
(size_t) 0, (dvoid **) 0);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not allocate Lob locator"))) {
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
ora_value->value = lob;
ora_value->defined_size = 0;
}
else if (use_callback) {
ora_value->value = NULL;
ora_value->defined_size = 33554432; /* 32M */
}
else
ora_value->value = g_malloc0 (ora_value->defined_size);
ora_value->s_type = gda_g_type_to_static_type (ora_value->g_type);
if (_GDA_PSTMT (ps)->types [i] == GDA_TYPE_NULL)
_GDA_PSTMT (ps)->types [i] = ora_value->g_type;
gda_column_set_g_type (column, ora_value->g_type);
#ifdef GDA_DEBUG_NO
g_print ("**COL type is %d, GType is %s, ORA defined size is %d%s\n",
ora_value->sql_type,
g_type_name (ora_value->g_type),
ora_value->defined_size - 1,
use_callback ? " using callback": "");
#endif
ora_value->hdef = (OCIDefine *) 0;
ora_value->indicator = 0;
result = OCIDefineByPos ((OCIStmt *) ps->hstmt,
(OCIDefine **) &(ora_value->hdef),
(OCIError *) cdata->herr,
(ub4) i + 1,
ora_value->value,
ora_value->defined_size,
ora_value->sql_type,
(dvoid *) &(ora_value->indicator),
&(ora_value->rlen),
&(ora_value->rcode),
(ub4) (use_callback ? OCI_DYNAMIC_FETCH : OCI_DEFAULT));
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not define by position"))) {
OCIDescriptorFree ((dvoid *) ora_value->pard, OCI_DTYPE_PARAM);
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
if (use_callback) {
result = OCIDefineDynamic ((OCIDefine *) (ora_value->hdef),
(OCIError *) (cdata->herr),
(dvoid*) (ora_value),
(OCICallbackDefine) ora_def_callback);
if (gda_oracle_check_result (result, cnc, cdata, OCI_HTYPE_ERROR,
_("Could not define by position"))) {
OCIDescriptorFree ((dvoid *) ora_value->pard, OCI_DTYPE_PARAM);
g_list_foreach (ora_values, (GFunc) _gda_oracle_value_free, NULL);
return NULL;
}
}
ora_value->use_callback = use_callback;
}
ps->ora_values = g_list_reverse (ora_values);
}
/* determine access mode: RANDOM or CURSOR FORWARD are the only supported; if CURSOR BACKWARD
* is requested, then we need RANDOM mode */
if (flags & GDA_DATA_MODEL_ACCESS_RANDOM)
rflags = GDA_DATA_MODEL_ACCESS_RANDOM;
else if (flags & GDA_DATA_MODEL_ACCESS_CURSOR_BACKWARD)
rflags = GDA_DATA_MODEL_ACCESS_RANDOM;
else
rflags = GDA_DATA_MODEL_ACCESS_CURSOR_FORWARD;
ub4 prefetch;
prefetch = (ub4) (100);
OCIAttrSet (ps->hstmt, OCI_HTYPE_STMT,
&prefetch, 0,
OCI_ATTR_PREFETCH_ROWS, cdata->herr);
/* create data model */
model = g_object_new (GDA_TYPE_ORACLE_RECORDSET,
"connection", cnc,
"prepared-stmt", ps,
"model-usage", rflags,
"exec-params", exec_params, NULL);
GDA_DATA_SELECT (model)->advertized_nrows = nb_rows;
return GDA_DATA_MODEL (model);
}