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 
27 #ifndef _NGS_CAPABILITIE_READONLY_H_
28 #define _NGS_CAPABILITIE_READONLY_H_
29 
30 
31 #include "ngs/capabilities/handler.h"
32 #include "ngs/mysqlx/setter_any.h"
33 
34 
35 namespace ngs
36 {
37 
38 
39   class Capability_readonly_value : public Capability_handler
40   {
41   public:
42     template<typename ValueType>
Capability_readonly_value(const std::string & cap_name,const ValueType & value)43     Capability_readonly_value(const std::string &cap_name, const ValueType& value)
44     : m_name(cap_name)
45     {
46       Setter_any::set_scalar(m_value, value);
47     }
48 
name()49     virtual const std::string name() const { return m_name; }
is_supported()50     virtual bool is_supported() const { return true; }
51 
get(::Mysqlx::Datatypes::Any & any)52     virtual void get(::Mysqlx::Datatypes::Any &any) {any.CopyFrom(m_value); }
set(const::Mysqlx::Datatypes::Any & any)53     virtual bool set(const ::Mysqlx::Datatypes::Any &any) { return false; };
54 
commit()55     virtual void commit() {}
56 
57   private:
58     const std::string        m_name;
59     ::Mysqlx::Datatypes::Any m_value;
60   };
61 
62 
63 } // namespace ngs
64 
65 
66 #endif // _NGS_CAPABILITIE_READONLY_H_
67