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annotate Core/HttpServer/FilesystemHttpSender.h @ 1519:8bd0d897763f

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refactoring: IHttpStreamAnswer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Aug 2015 13:15:16 +0200
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children f938f7779bcb
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, 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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32 #pragma once
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33
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34 #include "HttpFileSender.h"
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35 #include "../FileStorage/FilesystemStorage.h"
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36
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37 #include <fstream>
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38
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39 namespace Orthanc
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40 {
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41 class FilesystemHttpSender : public HttpFileSender
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42 {
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43 private:
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44 boost::filesystem::path path_;
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45 std::ifstream file_;
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46 uint64_t size_;
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47 std::string chunk_;
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48 size_t chunkSize_;
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49
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50 void Open();
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51
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52 public:
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53 FilesystemHttpSender(const char* path);
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54
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55 FilesystemHttpSender(const boost::filesystem::path& path);
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56
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57 FilesystemHttpSender(const FilesystemStorage& storage,
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58 const std::string& uuid);
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59
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61 /**
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62 * Implementation of the IHttpStreamAnswer interface.
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63 **/
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64
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65 virtual uint64_t GetContentLength()
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66 {
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67 return size_;
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68 }
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69
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70 virtual bool ReadNextChunk();
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71
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72 virtual const char* GetChunkContent()
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73 {
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74 return chunk_.c_str();
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75 }
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76
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77 virtual size_t GetChunkSize()
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78 {
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79 return chunkSize_;
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80 }
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81 };
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82 }