Qpid Proton C++  0.17.0
message_id.hpp
1 #ifndef PROTON_MESSAGE_ID_HPP
2 #define PROTON_MESSAGE_ID_HPP
3 
4 /*
5  *
6  * Licensed to the Apache Software Foundation (ASF) under one
7  * or more contributor license agreements. See the NOTICE file
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10  * to you under the Apache License, Version 2.0 (the
11  * "License"); you may not use this file except in compliance
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13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
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18  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
19  * KIND, either express or implied. See the License for the
20  * specific language governing permissions and limitations
21  * under the License.
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23  */
24 
25 #include "./binary.hpp"
26 #include "./scalar_base.hpp"
27 #include "./uuid.hpp"
28 
29 #include <proton/type_compat.h>
30 
31 #include <string>
32 
33 namespace proton {
34 
44 class message_id : public scalar_base {
45  public:
48 
50  template <class T> message_id(const T& x) { *this = x; }
51 
56  message_id& operator=(uint64_t x) { put_(x); return *this; }
57  message_id& operator=(const uuid& x) { put_(x); return *this; }
58  message_id& operator=(const binary& x) { put_(x); return *this; }
59  message_id& operator=(const std::string& x) { put_(x); return *this; }
60  message_id& operator=(const char* x) { put_(x); return *this; }
61 
63  private:
64  message_id(const pn_atom_t& a): scalar_base(a) {}
65 
67  friend class message;
68  friend class codec::decoder;
70 };
71 
74 template <class T> T get(const message_id& x);
76 
78 template<> inline uint64_t get<uint64_t>(const message_id& x) { return internal::get<uint64_t>(x); }
80 template<> inline uuid get<uuid>(const message_id& x) { return internal::get<uuid>(x); }
82 template<> inline binary get<binary>(const message_id& x) { return internal::get<binary>(x); }
84 template<> inline std::string get<std::string>(const message_id& x) { return internal::get<std::string>(x); }
85 
88 template<class T> T coerce(const message_id& x) { return internal::coerce<T>(x); }
89 
90 } // proton
91 
92 #endif // PROTON_MESSAGE_ID_HPP
An AMQP message.
Definition: message.hpp:47
T coerce(const message_id &x)
Coerce the contained value to type T.
Definition: message_id.hpp:88
A 16-byte universally unique identifier.
Definition: uuid.hpp:34
Base class for scalar types.
Definition: scalar_base.hpp:57
message_id(const T &x)
Construct from any type that can be assigned.
Definition: message_id.hpp:50
Arbitrary binary data.
Definition: binary.hpp:37
message_id & operator=(const char *x)
Treated as amqp::STRING.
Definition: message_id.hpp:60
The main Proton namespace.
Definition: annotation_key.hpp:30
Experimental - Stream-like decoder from AMQP bytes to C++ values.
Definition: decoder.hpp:53
An AMQP message ID.
Definition: message_id.hpp:44
message_id()
An empty message_id.
Definition: message_id.hpp:47