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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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32
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33 #pragma once
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34
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35 #include <boost/filesystem.hpp>
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36 #include <set>
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37
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38 #include "Compression/BufferCompressor.h"
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39
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40 namespace Orthanc
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41 {
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42 class FileStorage : public boost::noncopyable
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43 {
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44 friend class HttpOutput;
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45
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46 private:
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47 std::auto_ptr<BufferCompressor> compressor_;
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48
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49 boost::filesystem::path root_;
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50
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51 boost::filesystem::path GetPath(const std::string& uuid) const;
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52
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53 std::string CreateFileWithoutCompression(const void* content, size_t size);
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54
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55 public:
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56 FileStorage(std::string root);
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57
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58 void SetBufferCompressor(BufferCompressor* compressor) // Takes the ownership
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59 {
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60 compressor_.reset(compressor);
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61 }
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62
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63 bool HasBufferCompressor() const
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64 {
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65 return compressor_.get() != NULL;
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66 }
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67
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68 std::string Create(const void* content, size_t size);
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69
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70 std::string Create(const std::vector<uint8_t>& content);
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71
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72 std::string Create(const std::string& content);
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73
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74 void ReadFile(std::string& content,
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75 const std::string& uuid) const;
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76
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77 void ListAllFiles(std::set<std::string>& result) const;
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78
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79 uintmax_t GetCompressedSize(const std::string& uuid) const;
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80
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81 void Clear();
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82
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83 void Remove(const std::string& uuid);
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84
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85 uintmax_t GetCapacity() const;
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86
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87 uintmax_t GetAvailableSpace() const;
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88
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89 std::string GetPath() const
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90 {
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91 return root_.string();
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92 }
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93 };
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94 }
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