Mercurial > hg > orthanc-stl
comparison Sources/ResourcesCache.cpp @ 72:e94f177c3653
reorganization
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 04 Oct 2024 17:25:46 +0200 |
parents | |
children | 1963619e3e87 |
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71:f3bbafc067d0 | 72:e94f177c3653 |
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1 /** | |
2 * SPDX-FileCopyrightText: 2023-2024 Sebastien Jodogne, UCLouvain, Belgium | |
3 * SPDX-License-Identifier: GPL-3.0-or-later | |
4 */ | |
5 | |
6 /** | |
7 * STL plugin for Orthanc | |
8 * Copyright (C) 2023-2024 Sebastien Jodogne, UCLouvain, Belgium | |
9 * | |
10 * This program is free software: you can redistribute it and/or | |
11 * modify it under the terms of the GNU General Public License as | |
12 * published by the Free Software Foundation, either version 3 of the | |
13 * License, or (at your option) any later version. | |
14 * | |
15 * This program is distributed in the hope that it will be useful, but | |
16 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 * General Public License for more details. | |
19 * | |
20 * You should have received a copy of the GNU General Public License | |
21 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 **/ | |
23 | |
24 | |
25 #include "ResourcesCache.h" | |
26 | |
27 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h" | |
28 | |
29 #include <Compatibility.h> | |
30 #include <SystemToolbox.h> | |
31 | |
32 | |
33 // Forward declaration | |
34 void ReadStaticAsset(std::string& target, | |
35 const std::string& path); | |
36 | |
37 | |
38 class ResourcesCache::RestOutputHandler : public IHandler | |
39 { | |
40 private: | |
41 OrthancPluginRestOutput* output_; | |
42 std::string mime_; | |
43 | |
44 public: | |
45 RestOutputHandler(OrthancPluginRestOutput* output, | |
46 const std::string& mime) : | |
47 output_(output), | |
48 mime_(mime) | |
49 { | |
50 } | |
51 | |
52 virtual void Apply(const std::string& resource) ORTHANC_OVERRIDE | |
53 { | |
54 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output_, | |
55 resource.c_str(), resource.size(), mime_.c_str()); | |
56 } | |
57 }; | |
58 | |
59 | |
60 class ResourcesCache::StoreResourceIntoString : public IHandler | |
61 { | |
62 private: | |
63 std::string& target_; | |
64 | |
65 public: | |
66 StoreResourceIntoString(std::string& target) : | |
67 target_(target) | |
68 { | |
69 } | |
70 | |
71 virtual void Apply(const std::string& resource) ORTHANC_OVERRIDE | |
72 { | |
73 target_ = resource; | |
74 } | |
75 }; | |
76 | |
77 | |
78 ResourcesCache::~ResourcesCache() | |
79 { | |
80 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
81 { | |
82 assert(it->second != NULL); | |
83 delete it->second; | |
84 } | |
85 } | |
86 | |
87 | |
88 void ResourcesCache::Apply(IHandler& handler, | |
89 const std::string& path) | |
90 { | |
91 { | |
92 // Check whether the cache already contains the resource | |
93 boost::shared_lock<boost::shared_mutex> lock(mutex_); | |
94 | |
95 Content::const_iterator found = content_.find(path); | |
96 | |
97 if (found != content_.end()) | |
98 { | |
99 assert(found->second != NULL); | |
100 handler.Apply(*found->second); | |
101 return; | |
102 } | |
103 } | |
104 | |
105 // This resource has not been cached yet | |
106 | |
107 std::unique_ptr<std::string> item(new std::string); | |
108 ReadStaticAsset(*item, path); | |
109 handler.Apply(*item); | |
110 | |
111 { | |
112 // Store the resource into the cache | |
113 boost::unique_lock<boost::shared_mutex> lock(mutex_); | |
114 | |
115 if (content_.find(path) == content_.end()) | |
116 { | |
117 content_[path] = item.release(); | |
118 } | |
119 } | |
120 } | |
121 | |
122 | |
123 void ResourcesCache::Answer(OrthancPluginRestOutput* output, | |
124 const std::string& path) | |
125 { | |
126 const std::string mime = Orthanc::EnumerationToString(Orthanc::SystemToolbox::AutodetectMimeType(path)); | |
127 | |
128 RestOutputHandler handler(output, mime); | |
129 Apply(handler, path); | |
130 } | |
131 | |
132 | |
133 void ResourcesCache::ReadResource(std::string& target, | |
134 const std::string& path) | |
135 { | |
136 StoreResourceIntoString handler(target); | |
137 Apply(handler, path); | |
138 } |