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annotate FileDBLink.hpp @ 86:af7962f3274b

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Use quint64 for sizes, rather than qint64.
author Tom Fredrik Blenning Klaussen <bfg@bfgconsult.no>
date Thu, 10 Oct 2013 16:07:35 +0200
parents 1f9e27a0bd7f
children f49023c61dac
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1 #ifndef FILEDBLINK
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2 #define FILEDBLINK
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3
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4 #include <QtCore/QCryptographicHash>
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5 #include <QtCore/QDateTime>
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6 #include <QtCore/QFileInfo>
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7
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8 class FileDBLink {
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9 public:
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10 class DBInfo {
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11 public:
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12 DBInfo(const QString& path, quint64 size,
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13 const QDateTime& mtime, const QByteArray& hash) : path_(path),
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14 size_(size),
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15 mtime_(mtime),
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16 hash_(hash)
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17 {}
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18 DBInfo() {}
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19
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20 virtual ~DBInfo() {}
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21
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22 const QString& path() const
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23 {
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24 return path_;
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25 }
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26
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27 QString name() const
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28 {
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29 QFileInfo finf(path());
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30 return finf.fileName();
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31 }
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32
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33 quint64 size() const
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34 {
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35 return size_;
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36 }
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37
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38 const QDateTime& mtime() const
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39 {
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40 return mtime_;
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41 }
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42
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43 const QByteArray checksum() const
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44 {
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45 return hash_;
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46 }
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47
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48 virtual QString serialize() const
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49 {
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50 QString size = QString::number(size_);
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51 QString str = path_;
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52 str += ", " + size;
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53 str += ", " + mtime_.toString();
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54 str += ", " + hash_.toHex();
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55 return str;
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56 }
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57
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58 private:
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59 QString path_;
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60 quint64 size_;
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61 QDateTime mtime_;
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62 QByteArray hash_;
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63 };
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64
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65 class ExtendedDBInfo : public DBInfo {
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66 public:
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67 ExtendedDBInfo(const DBInfo& dbinfo,
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68 const QString& closestEditPath,
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69 int editDistance) :
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70 DBInfo(dbinfo),
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71 closestEditPath_(closestEditPath),
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72 editDistance_(editDistance)
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73 {
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74 }
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75 ExtendedDBInfo()
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76 {
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77 }
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79 virtual ~ExtendedDBInfo()
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80 {
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81 }
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82
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83 virtual QString serialize() const
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84 {
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85 QString dist = QString::number(editDistance_);
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86 QString str = DBInfo::serialize();
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87 str += ", " + closestEditPath_;
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88 str += ", " + dist;
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89 return str;
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90 }
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91
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92 int editDistance() const
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93 {
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94 return editDistance_;
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95 }
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96
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97 private:
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98 QString closestEditPath_;
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99 int editDistance_;
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100 };
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101 typedef QSharedPointer<DBInfo> dbinf_ptr_t;
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102
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103 static dbinf_ptr_t
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104 computedValue(const dbinf_ptr_t& info,
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105 const QList<dbinf_ptr_t >&);
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106
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107 static QByteArray
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108 computeHash(const QString& path,
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109 QCryptographicHash::Algorithm = QCryptographicHash::Sha1);
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110
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111 public:
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112 enum DBStatus { NONE = 0, MTIME_DIFFERENT, SAME};
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113
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114 virtual ~FileDBLink() {}
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115
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116 void updateIfModified(const QString& path, bool lazy = false);
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117
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118 virtual void addFile(const QString& path, quint64 size,
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119 const QDateTime& dtime, const QByteArray& hash) = 0;
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120 virtual void keepOnlyFromPrefix(const QString& prefix,
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121 const QStringList& files) = 0;
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122 virtual void deleteFileFromDB(const QString& path) = 0;
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123
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124 virtual const QList<dbinf_ptr_t> filesWithSize(quint64 size, const QString& prefix = QString()) const;
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125
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126 bool updateAllWithSize(quint64 size);
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128 virtual dbinf_ptr_t value(const QString& path) const;
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129
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130 void addFile(const QString& path, quint64 size, const QDateTime& dtime, bool lazy = false);
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131 void addFile(const QFileInfo& fileinfo, bool lazy = false);
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132
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133 virtual void updateFile(const QString& path, quint64 size,
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134 const QDateTime& dtime, const QByteArray& hash) = 0;
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135 void updateFile(const QString& path, quint64 size, const QDateTime& dtime, bool lazy = false);
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136 void updateFile(const QFileInfo& fileinfo, bool lazy = false);
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137
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138 virtual bool exists(const QString& path) = 0;
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139 virtual DBStatus existsWithMtime(const QString& path,
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140 const QDateTime& mtime) = 0;
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141
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142 virtual const QList<dbinf_ptr_t>
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143 values(const QString& prefix = QString() ) const = 0;
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144
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145 virtual const QList<dbinf_ptr_t>
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146 computedValues(const QString& prefix = QString() ) const;
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147
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148 enum SORTORDER { PATH, SIZE, MTIME, CHECKSUM, EDIT };
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149
64
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150 virtual const QList<dbinf_ptr_t>
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151 sortOn(const QString& prefix, SORTORDER order, bool extended = false);
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152 };
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153
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154 #endif //FILEDBLINK