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1 /** |
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2 * Relational pipes |
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3 * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info) |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation, version 3 of the License. |
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8 * |
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9 * This program is distributed in the hope that it will be useful, |
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 * GNU General Public License for more details. |
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13 * |
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14 * You should have received a copy of the GNU General Public License |
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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16 */ |
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17 #pragma once |
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18 |
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19 #include <cstdlib> |
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20 #include <iostream> |
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21 #include <sstream> |
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22 #include <string> |
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23 #include <vector> |
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24 #include <map> |
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25 #include <memory> |
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26 #include <algorithm> |
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27 #include <filesystem> |
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28 |
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29 #include <pwd.h> |
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30 #include <grp.h> |
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31 #include <sys/stat.h> |
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32 |
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33 #include <sys/xattr.h> |
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34 |
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35 #include <relpipe/writer/typedefs.h> |
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36 |
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37 #include "Configuration.h" |
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38 #include "AttributeFinder.h" |
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39 #include "FileAttributeFinder.h" |
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40 #include "XattrAttributeFinder.h" |
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41 #include "StreamletAttributeFinder.h" |
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42 |
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43 namespace relpipe { |
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44 namespace in { |
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45 namespace filesystem { |
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46 |
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47 namespace fs = std::filesystem; |
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48 using namespace relpipe::writer; |
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49 |
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50 class FilesystemCommandBase { |
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51 protected: |
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52 std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings. |
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53 |
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54 std::map<string_t, std::shared_ptr<AttributeFinder>> createAttributeFinders() { |
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55 return { |
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56 {RequestedField::GROUP_FILE, std::make_shared<FileAttributeFinder>()}, |
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57 {RequestedField::GROUP_STREAMLET, std::make_shared<StreamletAttributeFinder>()}, |
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58 {RequestedField::GROUP_XATTR, std::make_shared<XattrAttributeFinder>()}}; |
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59 } |
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60 |
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61 void reset(std::stringstream& stream) { |
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62 stream.str(""); |
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63 stream.clear(); |
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64 } |
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65 |
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66 bool readNext(std::istream& input, std::stringstream& originalName) { |
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67 for (char ch; input.get(ch);) { |
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68 if (ch == 0) return true; |
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69 else originalName << ch; |
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70 } |
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71 return originalName.tellp(); |
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72 } |
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73 |
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74 public: |
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75 |
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76 virtual ~FilesystemCommandBase() = default; |
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77 |
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78 virtual void process(std::istream& input, std::ostream& output, Configuration& configuration) = 0; |
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79 }; |
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80 |
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81 } |
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82 } |
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83 } |