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comparison OrthancStone/Sources/Messages/IMessage.h @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Framework/Messages/IMessage.h@7ec8fea061b9
children 85e117739eca
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1511:9dfeee74c1e6 1512:244ad1e4e76a
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #pragma once
23
24 #include <boost/lexical_cast.hpp>
25 #include <boost/noncopyable.hpp>
26
27 #include <string.h>
28
29 namespace OrthancStone
30 {
31 class MessageIdentifier
32 {
33 private:
34 const char* file_;
35 int line_;
36
37 bool IsEqual(const MessageIdentifier& other) const
38 {
39 return (line_ == other.line_ &&
40 strcmp(file_, other.file_) == 0);
41 }
42
43 public:
44 MessageIdentifier(const char* file,
45 int line) :
46 file_(file),
47 line_(line)
48 {
49 }
50
51 MessageIdentifier() :
52 file_(NULL),
53 line_(0)
54 {
55 }
56
57 std::string AsString() const
58 {
59 return std::string(file_) + ":" + boost::lexical_cast<std::string>(line_);
60 }
61
62 bool operator< (const MessageIdentifier& other) const
63 {
64 if (file_ == NULL)
65 {
66 return false;
67 }
68 else if (line_ != other.line_)
69 {
70 return line_ < other.line_;
71 }
72 else
73 {
74 return strcmp(file_, other.file_) < 0;
75 }
76 }
77
78 bool operator== (const MessageIdentifier& other) const
79 {
80 return IsEqual(other);
81 }
82
83 bool operator!= (const MessageIdentifier& other) const
84 {
85 return !IsEqual(other);
86 }
87 };
88
89
90 /**
91 * Base messages that are exchanged between IObservable and
92 * IObserver. Messages are distinguished by the "__FILE__" and
93 * "__LINE__" macro, as in "Orthanc::SQLite::StatementId".
94 **/
95 class IMessage : public boost::noncopyable
96 {
97 public:
98 virtual ~IMessage()
99 {
100 }
101
102 virtual const MessageIdentifier& GetIdentifier() const = 0;
103 };
104
105
106 /**
107 * Simple message implementation when no payload is needed but the
108 * origin is required. Sample usage:
109 * typedef OriginMessage<OrthancSlicesLoader> SliceGeometryErrorMessage;
110 **/
111 template <typename TOrigin>
112 class OriginMessage : public IMessage
113 {
114 private:
115 const TOrigin& origin_;
116
117 public:
118 OriginMessage(const TOrigin& origin) :
119 origin_(origin)
120 {
121 }
122
123 const TOrigin& GetOrigin() const
124 {
125 return origin_;
126 }
127 };
128 }
129
130
131 #define ORTHANC_STONE_MESSAGE(FILE, LINE) \
132 public: \
133 static const ::OrthancStone::MessageIdentifier& GetStaticIdentifier() \
134 { \
135 static const ::OrthancStone::MessageIdentifier id(FILE, LINE); \
136 return id; \
137 } \
138 \
139 virtual const ::OrthancStone::MessageIdentifier& GetIdentifier() const \
140 { \
141 return GetStaticIdentifier(); \
142 }
143
144
145 #define ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(FILE, LINE, NAME, ORIGIN) \
146 class NAME : public ::OrthancStone::OriginMessage<ORIGIN> \
147 { \
148 ORTHANC_STONE_MESSAGE(FILE, LINE); \
149 \
150 NAME(const ORIGIN& origin) : \
151 OriginMessage(origin) \
152 { \
153 } \
154 };
155
156
157 #define ORTHANC_STONE_DEFINE_EMPTY_MESSAGE(FILE, LINE, NAME) \
158 class NAME : public ::OrthancStone::IMessage \
159 { \
160 ORTHANC_STONE_MESSAGE(FILE, LINE); \
161 };