64 lines
2.3 KiB
C++
64 lines
2.3 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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#ifndef OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_INT2IP_
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#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_INT2IP_
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#include "sql/engine/expr/ob_expr_operator.h"
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namespace oceanbase
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{
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namespace sql
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{
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class ObExprInt2ip : public ObStringExprOperator
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{
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public:
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explicit ObExprInt2ip(common::ObIAllocator &alloc);
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virtual ~ObExprInt2ip();
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virtual int calc_result_type1(ObExprResType &type,
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ObExprResType &text,
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common::ObExprTypeCtx &type_ctx) const;
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static int calc(common::ObObj &result,
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const common::ObObj &text,
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common::ObExprStringBuf &string_buf);
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virtual int cg_expr(ObExprCGCtx &op_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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static int int2ip_varchar(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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private:
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// helper func
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static int int2ip(common::ObObj &result,
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const int64_t text,
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common::ObExprStringBuf &string_buf);
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static int int2ip(common::ObDatum &result,
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const int64_t text);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprInt2ip);
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};
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inline int ObExprInt2ip::calc_result_type1(ObExprResType &type,
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ObExprResType &text,
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common::ObExprTypeCtx &type_ctx) const
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{
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type_ctx.set_cast_mode(type_ctx.get_cast_mode() | CM_STRING_INTEGER_TRUNC);
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text.set_calc_type(common::ObIntType);
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type.set_varchar();
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type.set_length(common::MAX_IP_ADDR_LENGTH);
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type.set_collation_level(common::CS_LEVEL_COERCIBLE);
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type.set_default_collation_type();
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return common::OB_SUCCESS;
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}
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}
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}
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#endif /* OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_INT2IP_ */
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