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alex |
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<?php
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class FormateurJson {
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private $sourceDonnees;
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public function __construct($source) {
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$this->sourceDonnees = $source;
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}
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public function formaterStations($stations) {
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$objetJSON = new StdClass();
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$objetJSON->type = "FeatureCollection";
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$objetJSON->stats = new StdClass();
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$objetJSON->stats->communes = 0;
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$objetJSON->stats->stations = 0;
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$objetJSON->features = array();
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foreach ($stations as $station) {
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$stationJSON = NULL;
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// construction d'un objet feature adapte a la structure des donnees spatiales
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if ($station['type_site'] == 'MAILLE') {
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$stationJSON = $this->formaterMaille($station);
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} else {
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if ($station['type_site'] == 'STATION') {
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$objetJSON->stats->communes ++;
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} else {
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$objetJSON->stats->stations ++;
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}
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$stationJSON = $this->formaterPoint($station);
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}
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if (!is_null($stationJSON)) {
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$objetJSON->features[] = $stationJSON;
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}
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}
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return $objetJSON;
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}
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private function formaterPoint($station) {
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$json = new StdClass();
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$json->type = "Feature";
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$json->geometry = new StdClass();
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$json->properties = new StdClass();
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$json->geometry->type = "Point";
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$json->properties->typeSite = $station['type_site'];
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if ($this->sourceDonnees == 'floradata' && $station['type_site'] == 'COMMUNE') {
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$json->geometry->coordinates = array($station['lat_commune'], $station['lng_commune']);
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} else {
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$json->geometry->coordinates = array($station['latitude'], $station['longitude']);
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}
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if ($this->sourceDonnees == 'floradata') {
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$json->properties->nom = $this->construireNomStationFloradata($station);
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} else {
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$station['code_insee'] = '';
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$codeDepartement = $this->extraireCodeDepartement($station['code_insee']);
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$json->properties->nom = trim($station['nom'])." ({$codeDepartement})";
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}
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return $json;
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}
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private function construireNomStationFloradata($station) {
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$nom = ($station['type_site'] == 'COMMUNE') ? trim($station['nom_commune']) : trim($station['station']);
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$codeDepartement = $this->extraireCodeDepartement($station['ce_zone_geo']);
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if ($station['type_site'] == 'COMMUNE') {
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$nom = $station['zone_geo'] . " ({$codeDepartement})";
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} else {
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if (strlen($nom) == 0) {
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$nom = 'station sans nom, '.trim($station['zone_geo']);
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}
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$nom .= " ({$codeDepartement})";;
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}
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return $nom;
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}
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private function extraireCodeDepartement($codeInsee) {
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$codeInsee = substr($codeInsee,-5);
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$codeDepartement = substr($codeInsee, 0 ,2);
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if (intval($codeDepartement) > 95) {
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substr($codeInsee, 0 ,3);
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}
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return $codeDepartement;
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}
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private function formaterMaille($maille) {
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if ($maille['points'] == 0) {
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return null;
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}
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$json = new StdClass();
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$json->type = "Feature";
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$json->geometry = new StdClass();
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$json->geometry->type = "Polygon";
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$json->geometry->coordinates = array(
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array(floatval($maille['sud']), floatval($maille['ouest'])),
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array(floatval($maille['sud']), floatval($maille['est'])),
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array(floatval($maille['nord']), floatval($maille['est'])),
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array(floatval($maille['nord']), floatval($maille['ouest'])),
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array(floatval($maille['sud']), floatval($maille['ouest']))
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);
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$json->properties = new StdClass();
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$json->properties->typeSite = $maille['type_site'];
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$json->properties->nombrePoints = $maille['points'];
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return $json;
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}
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public function formaterObservations($observations, $nomSite) {
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$objetJSON = new StdClass();
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$objetJSON->site = trim($nomSite);
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$objetJSON->total = count($observations);
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$objetJSON->observations = array();
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foreach ($observations as $observation) {
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$observationJson = new stdClass();
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foreach ($observation as $colonne => $valeur) {
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if ($colonne == 'nom_referentiel') {
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$observationJson->urlEflore = $this->genererUrlFicheEflore($observation);
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} else {
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$observationJson->$colonne = is_string($valeur) ? trim($valeur) : $valeur;
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}
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}
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$objetJSON->observations[] = $observationJson;
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}
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return $objetJSON;
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}
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private function genererUrlFicheEflore($observation) {
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$url = null;
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if (strstr('bdtfx', $observation['nom_referentiel']) !== false) {
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$url = 'http://www.tela-botanica.org/bdtfx-nn-'.$observation['nn'];
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}
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return $url;
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}
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}
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?>
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