Subversion Repositories eFlore/Applications.moissonnage

<?php

class Projets extends RestService {

	private $parametres = array();

	private $ressources = array();

	private $squeletteDossier = '';

	private $cache;

	public function __construct() {

		$this->squeletteDossier = dirname(__FILE__).DIRECTORY_SEPARATOR;

	}

	public function consulter($ressources, $parametres) {

		$resultat = '';

		$reponseHttp = new ReponseHttp();

		try {

			$this->initialiserRessourcesEtParametres($ressources, $parametres);

			$resultat = $this->traiterRessources();

			$reponseHttp->setResultatService($resultat);

		} catch (Exception $e) {

			$reponseHttp->ajouterErreur($e);

		}

		$reponseHttp->emettreLesEntetes();

		$corps = $reponseHttp->getCorps();

		return $corps;

	}

	private function initialiserRessourcesEtParametres($ressources, $parametres) {

		$this->ressources = $ressources;

		$this->parametres = $parametres;

	}

	private function traiterRessources() {

		$retour = '';

		if ($this->avoirRessources()) {

			if ($this->avoirRessourceService()) {

				$retour = $this->initialiserService();

			}

		}

		return $retour;

	}

	private function avoirRessources() {

		$presenceDeRessources = false;

		if (isset($this->ressources) && count($this->ressources) > 0) {

			$presenceDeRessources = true;

		} else {

			$message = "Accès au service refusé : aucune ressource indiquée.\n"

				. "Veuillez indiquer au moins une source de données à interroger"

				. " et le type d'informations a renvoyer.";

			$code = RestServeur::HTTP_CODE_MAUVAISE_REQUETE;

			throw new Exception($message, $code);

		}

		return $presenceDeRessources;

	}

	private function chargerConfiguration($nomParametre) {

		$tableau = array();

		$tableauPartiel = explode(',', Config::get($nomParametre));

		$tableauPartiel = array_map('trim', $tableauPartiel);

		foreach ($tableauPartiel as $champ) {

			if (strpos($champ, '=') === false) {

				$tableau[] = $champ;

			} else {

				list($cle, $val) = explode('=', $champ);

				$clePropre = trim($cle);

				$valeurPropre = trim($val);

				$tableau[$clePropre] = $valeurPropre;

			}

		}

		return $tableau;

	}

	public static function chargerConfigurationSource($nomSource) {

		$chemin = Config::get('chemin_configurations')."config_$nomSource.ini";

		Config::charger($chemin);

	}

	private function chargerClasse($classe) {

		if (class_exists($classe)) {

			return null;

		}

		$cheminBiblio = Config::get('chemin_bibliotheque');

		$chemins = array();

		$chemins[] = $this->squeletteDossier;

		$chemins[] = $this->squeletteDossier.'commun' .DIRECTORY_SEPARATOR;

		$chemins[] = $this->squeletteDossier.'sources'.DIRECTORY_SEPARATOR;

		$chemins[] = $cheminBiblio;

		$chemins[] = $cheminBiblio.'robots'.DIRECTORY_SEPARATOR;

		foreach ($chemins as $chemin) {

			$chemin = $chemin.$classe.'.php';

			if (file_exists($chemin)) {

				require_once $chemin;

				break;

			}

		}

	}

	private function avoirRessourceService() {

		$presenceRessourceService = false;

		$servicesDispo = $this->chargerConfiguration('services_dispo');

		if (isset($this->ressources[0])) {

			$service = $this->ressources[0];

			if (in_array($service, $servicesDispo)) {

				$presenceRessourceService = true;

			} else {

				$message = "La service demandé '$service' n'est pas disponible !\n"

					. "Les services disponibles sont : ".implode(', ', $servicesDispo);

				$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;

				throw new Exception($message, $code);

			}

		} else {

			$message = "Vous n'avez pas indiqué de service !\n"

				. "Les services disponibles sont : ".implode(', ', $servicesDispo);

			$code = RestServeur::HTTP_CODE_MAUVAISE_REQUETE;

			throw new Exception($message, $code);

		}

		return $presenceRessourceService;

	}

	private function initialiserService() {

		$nomService = 'commun';

		$classe = $this->obtenirNomClasseService($nomService);

		$chemins = array();

		$chemins[] = $this->squeletteDossier.'commun'.DIRECTORY_SEPARATOR.'Commun.php';

		// php5.3 : Enregistrement en première position des autoload de la méthode gérant les classes des services

		if (phpversion() < 5.3) {

			spl_autoload_register(array($this, 'chargerClasse'));

		} else {

			spl_autoload_register(array($this, 'chargerClasse'), true , true);

		}

		$retour = '';

		$service = null;

		foreach ($chemins as $chemin) {

			if (file_exists($chemin)) {

				$service = new $classe($this->getBdd());

				$ressourcesPourService = $this->filtrerRessourcesPourService();

				$this->cache = new CacheMoissonnage($service, $nomService,

					Config::get('cache'));

				$retour = $this->cache->consulter($ressourcesPourService, $this->parametres);

				if (get_class($retour) == 'Exception') {

					throw new Exception($retour->getMessage(), RestServeur::HTTP_CODE_MAUVAISE_REQUETE);

				}

			}

		}

		if (is_null($service)) {

			$message = "Le service demandé '{$nomService}' n'existe pas !";

			$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;

			throw new Exception($message, $code);

		}

		return $retour;

	}

	private function obtenirNomClasseService($mot) {

		$classeNom = str_replace(' ', '', ucwords(strtolower(str_replace('-', ' ', $mot))));

		return $classeNom;

	}

	private function filtrerRessourcesPourService() {

		return $this->ressources;

	}

}

?>