kitodo /
kitodo-presentation
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| Total Complexity | 54 |
| Total Lines | 294 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Mods often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Mods, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 23 | class Mods implements \Kitodo\Dlf\Common\MetadataInterface |
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| 24 | { |
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| 25 | /** |
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| 26 | * This extracts the essential MODS metadata from XML |
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| 27 | * |
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| 28 | * @access public |
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| 29 | * |
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| 30 | * @param \SimpleXMLElement $xml: The XML to extract the metadata from |
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| 31 | * @param array &$metadata: The metadata array to fill |
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| 32 | * |
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| 33 | * @return void |
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| 34 | */ |
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| 35 | public function extractMetadata(\SimpleXMLElement $xml, array &$metadata) |
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| 53 | } |
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| 54 | |||
| 55 | /** |
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| 56 | * Get "author" and "author_sorting". |
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| 57 | * |
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| 58 | * @access private |
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| 59 | * |
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| 60 | * @return void |
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| 61 | */ |
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| 62 | private function getAuthors() { |
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| 63 | $authors = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="aut"]'); |
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| 64 | |||
| 65 | // Get "author" and "author_sorting" again if that was too sophisticated. |
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| 66 | if (empty($authors)) { |
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| 67 | // Get all names which do not have any role term assigned and assume these are authors. |
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| 68 | $authors = $this->xml->xpath('./mods:name[not(./mods:role)]'); |
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| 69 | } |
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| 70 | |||
| 71 | if (!empty($authors)) { |
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| 72 | for ($i = 0, $j = count($authors); $i < $j; $i++) { |
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| 73 | $authors[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 74 | |||
| 75 | // Check if there is a display form. |
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| 76 | if (($displayForm = $authors[$i]->xpath('./mods:displayForm'))) { |
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| 77 | $this->metadata['author'][$i] = (string) $displayForm[0]; |
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| 78 | } elseif (($nameParts = $authors[$i]->xpath('./mods:namePart'))) { |
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| 79 | $name = []; |
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| 80 | $k = 4; |
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| 81 | foreach ($nameParts as $namePart) { |
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| 82 | if ( |
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| 83 | isset($namePart['type']) |
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| 84 | && (string) $namePart['type'] == 'family' |
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| 85 | ) { |
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| 86 | $name[0] = (string) $namePart; |
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| 87 | } elseif ( |
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| 88 | isset($namePart['type']) |
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| 89 | && (string) $namePart['type'] == 'given' |
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| 90 | ) { |
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| 91 | $name[1] = (string) $namePart; |
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| 92 | } elseif ( |
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| 93 | isset($namePart['type']) |
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| 94 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 95 | ) { |
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| 96 | $name[2] = (string) $namePart; |
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| 97 | } elseif ( |
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| 98 | isset($namePart['type']) |
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| 99 | && (string) $namePart['type'] == 'date' |
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| 100 | ) { |
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| 101 | $name[3] = (string) $namePart; |
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| 102 | } else { |
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| 103 | $name[$k] = (string) $namePart; |
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| 104 | } |
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| 105 | $k++; |
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| 106 | } |
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| 107 | ksort($name); |
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| 108 | $this->metadata['author'][$i] = trim(implode(', ', $name)); |
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| 109 | } |
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| 110 | // Append "valueURI" to name using Unicode unit separator. |
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| 111 | if (isset($authors[$i]['valueURI'])) { |
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| 112 | $this->metadata['author'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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| 113 | } |
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| 114 | } |
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| 115 | } |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Get holder. |
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| 120 | * |
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| 121 | * @access private |
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| 122 | * |
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| 123 | * @return void |
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| 124 | */ |
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| 125 | private function getHolders() { |
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| 126 | $holders = $this->xml->xpath('./mods:name[./mods:role/mods:roleTerm[@type="code" and @authority="marcrelator"]="prv"]'); |
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| 127 | |||
| 128 | if (!empty($holders)) { |
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| 129 | for ($i = 0, $j = count($holders); $i < $j; $i++) { |
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| 130 | $holders[$i]->registerXPathNamespace('mods', 'http://www.loc.gov/mods/v3'); |
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| 131 | |||
| 132 | // Check if there is a display form. |
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| 133 | if (($displayForm = $holders[$i]->xpath('./mods:displayForm'))) { |
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| 134 | $this->metadata['holder'][$i] = (string) $displayForm[0]; |
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| 135 | } elseif (($nameParts = $holders[$i]->xpath('./mods:namePart'))) { |
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| 136 | $name = []; |
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| 137 | $k = 4; |
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| 138 | foreach ($nameParts as $namePart) { |
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| 139 | if ( |
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| 140 | isset($namePart['type']) |
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| 141 | && (string) $namePart['type'] == 'family' |
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| 142 | ) { |
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| 143 | $name[0] = (string) $namePart; |
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| 144 | } elseif ( |
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| 145 | isset($namePart['type']) |
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| 146 | && (string) $namePart['type'] == 'given' |
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| 147 | ) { |
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| 148 | $name[1] = (string) $namePart; |
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| 149 | } elseif ( |
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| 150 | isset($namePart['type']) |
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| 151 | && (string) $namePart['type'] == 'termsOfAddress' |
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| 152 | ) { |
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| 153 | $name[2] = (string) $namePart; |
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| 154 | } elseif ( |
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| 155 | isset($namePart['type']) |
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| 156 | && (string) $namePart['type'] == 'date' |
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| 157 | ) { |
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| 158 | $name[3] = (string) $namePart; |
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| 159 | } else { |
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| 160 | $name[$k] = (string) $namePart; |
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| 161 | } |
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| 162 | $k++; |
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| 163 | } |
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| 164 | ksort($name); |
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| 165 | $this->metadata['holder'][$i] = trim(implode(', ', $name)); |
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| 166 | } |
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| 167 | // Append "valueURI" to name using Unicode unit separator. |
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| 168 | if (isset($authors[$i]['valueURI'])) { |
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| 169 | $this->metadata['holder'][$i] .= chr(31) . (string) $authors[$i]['valueURI']; |
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| 170 | } |
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| 171 | } |
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| 172 | } |
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| 173 | } |
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| 174 | |||
| 175 | /** |
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| 176 | * Get "place" and "place_sorting". |
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| 177 | * |
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| 178 | * @access private |
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| 179 | * |
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| 180 | * @return void |
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| 181 | */ |
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| 182 | private function getPlaces() { |
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| 183 | $places = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:place/mods:placeTerm'); |
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| 184 | // Get "place" and "place_sorting" again if that was to sophisticated. |
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| 185 | if (empty($places)) { |
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| 186 | // Get all places and assume these are places of publication. |
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| 187 | $places = $this->xml->xpath('./mods:originInfo/mods:place/mods:placeTerm'); |
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| 188 | } |
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| 189 | if (!empty($places)) { |
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| 190 | foreach ($places as $place) { |
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| 191 | $this->metadata['place'][] = (string) $place; |
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| 192 | if (!$this->metadata['place_sorting'][0]) { |
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| 193 | $this->metadata['place_sorting'][0] = preg_replace('/[[:punct:]]/', '', (string) $place); |
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| 194 | } |
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| 195 | } |
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| 196 | } |
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| 197 | } |
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| 198 | |||
| 199 | /** |
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| 200 | * Get "year" and "year_sorting". |
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| 201 | * |
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| 202 | * @access private |
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| 203 | * |
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| 204 | * @return void |
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| 205 | */ |
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| 206 | private function getYears() { |
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| 207 | // Get "year_sorting". |
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| 208 | if (($years_sorting = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateOther[@type="order" and @encoding="w3cdtf"]'))) { |
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| 209 | foreach ($years_sorting as $year_sorting) { |
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| 210 | $this->metadata['year_sorting'][0] = intval($year_sorting); |
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| 211 | } |
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| 212 | } |
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| 213 | // Get "year" and "year_sorting" if not specified separately. |
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| 214 | $years = $this->xml->xpath('./mods:originInfo[not(./mods:edition="[Electronic ed.]")]/mods:dateIssued[@keyDate="yes"]'); |
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| 215 | // Get "year" and "year_sorting" again if that was to sophisticated. |
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| 216 | if (empty($years)) { |
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| 217 | // Get all dates and assume these are dates of publication. |
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| 218 | $years = $this->xml->xpath('./mods:originInfo/mods:dateIssued'); |
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| 219 | } |
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| 220 | if (!empty($years)) { |
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| 221 | foreach ($years as $year) { |
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| 222 | $this->metadata['year'][] = (string) $year; |
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| 223 | if (!$this->metadata['year_sorting'][0]) { |
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| 224 | $year_sorting = str_ireplace('x', '5', preg_replace('/[^\d.x]/i', '', (string) $year)); |
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| 225 | if ( |
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| 226 | strpos($year_sorting, '.') |
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| 227 | || strlen($year_sorting) < 3 |
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| 228 | ) { |
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| 229 | $year_sorting = ((intval(trim($year_sorting, '.')) - 1) * 100) + 50; |
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| 230 | } |
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| 231 | $this->metadata['year_sorting'][0] = intval($year_sorting); |
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| 232 | } |
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| 233 | } |
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| 234 | } |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * Get "description" stored in recordInfoNote. |
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| 239 | * |
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| 240 | * @access private |
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| 241 | * |
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| 242 | * @return void |
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| 243 | */ |
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| 244 | private function getDescription() { |
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| 245 | $this->getSingleMetadata('description', './mods:recordInfo/mods:recordInfoNote/text()'); |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Get "identifier" - example: hotels (built public accommodations), AAT ID: 300007166. |
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| 250 | * |
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| 251 | * @access private |
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| 252 | * |
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| 253 | * @return void |
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| 254 | */ |
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| 255 | private function getIdentifier() { |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * Get "license" - license on which object is published. |
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| 261 | * |
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| 262 | * @access private |
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| 263 | * |
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| 264 | * @return void |
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| 265 | */ |
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| 266 | private function getLicense() { |
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| 267 | $this->getSingleMetadata('license', './mods:accessCondition/text()'); |
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| 268 | } |
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| 269 | |||
| 270 | /** |
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| 271 | * Get names of the original object: |
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| 272 | * - main name |
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| 273 | * - alternative names |
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| 274 | * |
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| 275 | * @access private |
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| 276 | * |
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| 277 | * @return void |
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| 278 | */ |
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| 279 | private function getObjectNames() { |
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| 280 | $this->getSingleMetadata('object_name', './mods:relatedItem/mods:titleInfo[not(@displayLabel="alternative")]/mods:title/text()'); |
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| 281 | $this->getSingleMetadata('object_alternative_names', './mods:relatedItem/mods:titleInfo[@displayLabel="alternative"]/mods:title/text()'); |
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| 282 | } |
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| 283 | |||
| 284 | /** |
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| 285 | * Get location information about the original object: |
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| 286 | * - city (object_location) |
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| 287 | * - geonames |
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| 288 | * - wikidata |
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| 289 | * - wikipedia |
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| 290 | * |
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| 291 | * @access private |
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| 292 | * |
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| 293 | * @return void |
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| 294 | */ |
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| 295 | private function getObjectLocationMetadata() { |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * Save to the metadata array the last found matching metadata. |
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| 304 | * |
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| 305 | * @access private |
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| 306 | * |
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| 307 | * @param string $metadataIndex: The index in the array by which metadata is going to be accessible |
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| 308 | * @param string $xpath: The xpath for searching metadata in MODS |
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| 309 | * |
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| 310 | * @return void |
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| 311 | */ |
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| 312 | private function getSingleMetadata($metadataIndex, $xpath) { |
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| 317 | } |
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| 318 | } |
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| 319 | } |
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| 320 | } |
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| 321 |
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