1 /* 2 * Copyright (c) 2015, 2021, Oracle and/or its affiliates. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License, version 2.0, 6 * as published by the Free Software Foundation. 7 * 8 * This program is also distributed with certain software (including 9 * but not limited to OpenSSL) that is licensed under separate terms, 10 * as designated in a particular file or component or in included license 11 * documentation. The authors of MySQL hereby grant you an additional 12 * permission to link the program and your derivative works with the 13 * separately licensed software that they have included with MySQL. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License, version 2.0, for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 23 * 02110-1301 USA 24 */ 25 26 #ifndef _NGS_GETTER_ANY_H_ 27 #define _NGS_GETTER_ANY_H_ 28 29 #include <string> 30 #include <vector> 31 #include <sstream> 32 33 #include "ngs_common/protocol_protobuf.h" 34 #include "ngs/ngs_error.h" 35 #include "ngs/error_code.h" 36 37 38 namespace ngs 39 { 40 41 42 class Getter_any 43 { 44 public: 45 template <typename Value_type> get_numeric_value(const::Mysqlx::Datatypes::Any & any)46 static Value_type get_numeric_value(const ::Mysqlx::Datatypes::Any &any) 47 { 48 using namespace ::Mysqlx::Datatypes; 49 50 if (Any::SCALAR != any.type()) 51 throw ngs::Error_code(ER_X_INVALID_PROTOCOL_DATA, "Invalid data, expecting scalar"); 52 53 const Scalar &scalar = any.scalar(); 54 55 switch (scalar.type()) 56 { 57 case Scalar::V_BOOL: 58 return static_cast<Value_type>(scalar.v_bool()); 59 60 case Scalar::V_DOUBLE: 61 return static_cast<Value_type>(scalar.v_double()); 62 63 case Scalar::V_FLOAT: 64 return static_cast<Value_type>(scalar.v_float()); 65 66 case Scalar::V_SINT: 67 return static_cast<Value_type>(scalar.v_signed_int()); 68 69 case Scalar::V_UINT: 70 return static_cast<Value_type>(scalar.v_unsigned_int()); 71 72 default: 73 throw ngs::Error_code(ER_X_INVALID_PROTOCOL_DATA, "Invalid data, expected numeric type"); 74 } 75 } 76 77 78 template <typename Value_type> get_numeric_value_or_default(const::Mysqlx::Datatypes::Any & any,const Value_type & default_value)79 static Value_type get_numeric_value_or_default(const ::Mysqlx::Datatypes::Any &any, const Value_type & default_value) 80 { 81 try 82 { 83 return get_numeric_value<Value_type>(any); 84 } 85 catch (const ngs::Error_code&) 86 { 87 } 88 89 return default_value; 90 } 91 92 93 template <typename Functor> put_scalar_value_to_functor(const::Mysqlx::Datatypes::Any & any,Functor & functor)94 static void put_scalar_value_to_functor(const ::Mysqlx::Datatypes::Any &any, Functor & functor) 95 { 96 if (!any.has_type()) 97 throw ngs::Error_code(ER_X_INVALID_PROTOCOL_DATA, "Invalid data, expecting type"); 98 99 if (::Mysqlx::Datatypes::Any::SCALAR != any.type()) 100 throw ngs::Error_code(ER_X_INVALID_PROTOCOL_DATA, "Invalid data, expecting scalar"); 101 102 using ::Mysqlx::Datatypes::Scalar; 103 const Scalar &scalar = any.scalar(); 104 105 switch (scalar.type()) 106 { 107 case Scalar::V_SINT: 108 throw_invalid_type_if_false(scalar, scalar.has_v_signed_int()); 109 functor(scalar.v_signed_int()); 110 break; 111 112 case Scalar::V_UINT: 113 throw_invalid_type_if_false(scalar, scalar.has_v_unsigned_int()); 114 functor(scalar.v_unsigned_int()); 115 break; 116 117 case Scalar::V_NULL: 118 functor(); 119 break; 120 121 case Scalar::V_OCTETS: 122 throw_invalid_type_if_false(scalar, scalar.has_v_octets() && scalar.v_octets().has_value()); 123 functor(scalar.v_octets().value()); 124 break; 125 126 case Scalar::V_DOUBLE: 127 throw_invalid_type_if_false(scalar, scalar.has_v_double()); 128 functor(scalar.v_double()); 129 break; 130 131 case Scalar::V_FLOAT: 132 throw_invalid_type_if_false(scalar, scalar.has_v_float()); 133 functor(scalar.v_float()); 134 break; 135 136 case Scalar::V_BOOL: 137 throw_invalid_type_if_false(scalar, scalar.has_v_bool()); 138 functor(scalar.v_bool()); 139 break; 140 141 case Scalar::V_STRING: 142 //XXX 143 // implement char-set handling 144 const bool is_valid = scalar.has_v_string() && scalar.v_string().has_value(); 145 146 throw_invalid_type_if_false(scalar, is_valid); 147 functor(scalar.v_string().value()); 148 break; 149 } 150 } 151 152 private: throw_invalid_type_if_false(const::Mysqlx::Datatypes::Scalar & scalar,const bool is_valid)153 static void throw_invalid_type_if_false(const ::Mysqlx::Datatypes::Scalar &scalar, const bool is_valid) 154 { 155 if (!is_valid) 156 throw ngs::Error(ER_X_INVALID_PROTOCOL_DATA, 157 "Missing field required for ScalarType: %d", scalar.type()); 158 } 159 }; 160 161 162 } // namespace ngs 163 164 165 #endif // _NGS_GETTER_ANY_H_ 166