annotate Core/RestApi/RestApiOutput.cpp @ 215:c07170f3f4f7

refactoring of access to images in REST
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 29 Nov 2012 11:25:29 +0100
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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33 #include "RestApiOutput.h"
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35 #include "../OrthancException.h"
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37 namespace Orthanc
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38 {
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39 RestApiOutput::RestApiOutput(HttpOutput& output) :
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40 output_(output)
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41 {
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42 existingResource_ = false;
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43 }
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44
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45 RestApiOutput::~RestApiOutput()
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46 {
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47 if (!existingResource_)
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48 {
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49 output_.SendHeader(Orthanc_HttpStatus_400_BadRequest);
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50 }
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51 }
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52
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53 void RestApiOutput::CheckStatus()
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54 {
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55 if (existingResource_)
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56 {
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57 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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58 }
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59 }
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60
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61 void RestApiOutput::AnswerFile(HttpFileSender& sender)
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62 {
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63 CheckStatus();
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64 sender.Send(output_);
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65 existingResource_ = true;
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66 }
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67
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68 void RestApiOutput::AnswerJson(const Json::Value& value)
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69 {
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70 CheckStatus();
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71 Json::StyledWriter writer;
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72 std::string s = writer.write(value);
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73 output_.AnswerBufferWithContentType(s, "application/json");
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74 existingResource_ = true;
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75 }
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77 void RestApiOutput::AnswerBuffer(const std::string& buffer,
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78 const std::string& contentType)
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79 {
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80 CheckStatus();
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81 output_.AnswerBufferWithContentType(buffer, contentType);
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82 existingResource_ = true;
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83 }
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84
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85 void RestApiOutput::Redirect(const std::string& path)
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86 {
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87 CheckStatus();
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88 output_.Redirect(path);
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89 existingResource_ = true;
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90 }
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91 }