annotate Framework/Oracle/GetOrthancImageCommand.cpp @ 1132:58799b7317fa

merge
author Alain Mazy <alain@mazy.be>
date Wed, 06 Nov 2019 10:47:05 +0100
parents a7351ad54960
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "GetOrthancImageCommand.h"
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23
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24 #include <Core/Images/JpegReader.h>
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25 #include <Core/Images/PamReader.h>
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26 #include <Core/Images/PngReader.h>
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27 #include <Core/OrthancException.h>
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28 #include <Core/Toolbox.h>
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29
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30 namespace OrthancStone
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31 {
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32 GetOrthancImageCommand::SuccessMessage::SuccessMessage(const GetOrthancImageCommand& command,
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33 Orthanc::ImageAccessor* image, // Takes ownership
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34 Orthanc::MimeType mime) :
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35 OriginMessage(command),
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36 image_(image),
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37 mime_(mime)
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38 {
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39 if (image == NULL)
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40 {
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41 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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42 }
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43 }
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44
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45
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46 GetOrthancImageCommand::GetOrthancImageCommand() :
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47 uri_("/"),
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48 timeout_(600),
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49 hasExpectedFormat_(false)
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50 {
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51 }
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52
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53
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54 void GetOrthancImageCommand::SetExpectedPixelFormat(Orthanc::PixelFormat format)
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55 {
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56 hasExpectedFormat_ = true;
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57 expectedFormat_ = format;
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58 }
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59
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60
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61 void GetOrthancImageCommand::SetInstanceUri(const std::string& instance,
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62 Orthanc::PixelFormat pixelFormat)
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63 {
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64 uri_ = "/instances/" + instance;
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65
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66 switch (pixelFormat)
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67 {
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68 case Orthanc::PixelFormat_RGB24:
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69 uri_ += "/preview";
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70 break;
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71
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72 case Orthanc::PixelFormat_Grayscale16:
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73 uri_ += "/image-uint16";
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74 break;
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75
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76 case Orthanc::PixelFormat_SignedGrayscale16:
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77 uri_ += "/image-int16";
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78 break;
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79
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80 default:
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81 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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82 }
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83 }
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84
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85 void GetOrthancImageCommand::ProcessHttpAnswer(IMessageEmitter& emitter,
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86 const IObserver& receiver,
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87 const std::string& answer,
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88 const HttpHeaders& answerHeaders) const
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89 {
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90 Orthanc::MimeType contentType = Orthanc::MimeType_Binary;
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91
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92 for (HttpHeaders::const_iterator it = answerHeaders.begin();
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93 it != answerHeaders.end(); ++it)
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94 {
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95 std::string s;
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96 Orthanc::Toolbox::ToLowerCase(s, it->first);
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97
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98 if (s == "content-type")
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99 {
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100 contentType = Orthanc::StringToMimeType(it->second);
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101 break;
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102 }
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103 }
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104
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105 std::auto_ptr<Orthanc::ImageAccessor> image;
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106
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107 switch (contentType)
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108 {
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109 case Orthanc::MimeType_Png:
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110 {
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111 image.reset(new Orthanc::PngReader);
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112 dynamic_cast<Orthanc::PngReader&>(*image).ReadFromMemory(answer);
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113 break;
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114 }
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115
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116 case Orthanc::MimeType_Pam:
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117 {
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118 image.reset(new Orthanc::PamReader);
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119 dynamic_cast<Orthanc::PamReader&>(*image).ReadFromMemory(answer);
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120 break;
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121 }
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122
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123 case Orthanc::MimeType_Jpeg:
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124 {
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125 image.reset(new Orthanc::JpegReader);
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126 dynamic_cast<Orthanc::JpegReader&>(*image).ReadFromMemory(answer);
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127 break;
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128 }
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129
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130 default:
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131 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol,
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132 "Unsupported HTTP Content-Type for an image: " +
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133 std::string(Orthanc::EnumerationToString(contentType)));
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134 }
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135
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136 if (hasExpectedFormat_)
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137 {
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138 if (expectedFormat_ == Orthanc::PixelFormat_SignedGrayscale16 &&
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139 image->GetFormat() == Orthanc::PixelFormat_Grayscale16)
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140 {
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141 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16);
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142 }
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143
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144 if (expectedFormat_ != image->GetFormat())
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145 {
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146 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
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147 }
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148 }
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149
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150 SuccessMessage message(*this, image.release(), contentType);
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151 emitter.EmitMessage(receiver, message);
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152 }
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153 }