115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include <string.h>
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#include "objit/common/ob_item_type.h"
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#include "sql/engine/expr/ob_expr_ip2int.h"
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//#include "sql/engine/expr/ob_expr_promotion_util.h"
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#include "share/object/ob_obj_cast.h"
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using namespace oceanbase::common;
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using namespace oceanbase::sql;
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namespace oceanbase
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{
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namespace sql
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{
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ObExprIp2int::ObExprIp2int(ObIAllocator &alloc)
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: ObFuncExprOperator(alloc, T_FUN_SYS_IP2INT, N_IP2INT, 1, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
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{
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}
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ObExprIp2int::~ObExprIp2int()
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{
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}
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template <typename T>
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int ObExprIp2int::ip2int(T &result, const ObString &text)
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{
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int ret = OB_SUCCESS;
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char buf[16];
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if (text.length() > 15) {
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LOG_WARN("ip format invalid", K(text));
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result.set_null();
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} else {
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MEMCPY(buf, text.ptr(), text.length());
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int len = text.length();
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buf[len] = '\0';
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int cnt = 0;
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for (int i = 0; OB_SUCC(ret) && i < len; ++i) {
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if (text.ptr()[i] == '.') {
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cnt++;
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} else {}
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}
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if (OB_FAIL(ret)) {
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} else if (cnt != 3) {
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LOG_WARN("ip format invalid", K(cnt));
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result.set_null();
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} else {
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struct in_addr addr;
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int err = inet_aton(buf, &addr);
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if (0 != err) {
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result.set_int(ntohl(addr.s_addr));
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} else {
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LOG_WARN("ip format invalid", K(err), K(buf));
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result.set_null();
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}
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}
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}
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return ret;
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}
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int ObExprIp2int::cg_expr(ObExprCGCtx &op_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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UNUSED(op_cg_ctx);
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UNUSED(raw_expr);
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int ret = OB_SUCCESS;
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if (rt_expr.arg_cnt_ != 1) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("ip2int expr should have one param", K(ret), K(rt_expr.arg_cnt_));
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} else if (OB_ISNULL(rt_expr.args_) || OB_ISNULL(rt_expr.args_[0])) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("children of ip2int expr is null", K(ret), K(rt_expr.args_));
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} else {
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CK(ObVarcharType == rt_expr.args_[0]->datum_meta_.type_);
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rt_expr.eval_func_ = ObExprIp2int::ip2int_varchar;
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}
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return ret;
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}
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int ObExprIp2int::ip2int_varchar(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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if (OB_FAIL(expr.eval_param_value(ctx))) {
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LOG_WARN("ip2int expr eval param value failed", K(ret));
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} else {
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ObDatum &text = expr.locate_param_datum(ctx, 0);
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if (text.is_null()) {
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expr_datum.set_null();
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} else {
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ObString m_text = text.get_string();
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if (OB_FAIL(ip2int(expr_datum, m_text))) {
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LOG_WARN("fail to convert ip to int", K(ret), K(m_text));
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}
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}
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}
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return ret;
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}
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}
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}
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