Subversion Repositories eFlore/Applications.del

<?php

/**

 * Classe principale de chargement des services concernant les déterminations dans DEL.

 *

 * Encodage en entrée : utf8

 * Encodage en sortie : utf8

 * @package eflore-projets

 * @author Jennifer DHÉ <jennifer.dhe@tela-botanica.org>

 * @author Delphine CAUQUIL <delphine@tela-botanica.org>

 * @author Jean-Pascal MILCENT <jpm@tela-botanica.org>

 * @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>

 * @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>

 * @version 0.1

 * @copyright 1999-2011 Tela Botanica (accueil@tela-botanica.org)

 */

class Determinations extends RestService {

	private $parametres = array();

	private $ressources = array();

	private $methode = null;

	private $serviceNom = 'determinations';

	private $sousServiceNom = null;

	private $cheminCourant = null;

	private $conteneur;

	/** Indique si oui (true) ou non (false), on veut utiliser les paramètres bruts. */

	protected $utilisationParametresBruts = true;

	public function __construct() {

		$this->cheminCourant = dirname(__FILE__).DS;

	}

	public function consulter($ressources, $parametres) {

		$this->methode = 'consulter';

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

		return $this->executerService();

	}

	public function modifier($ressources, $requeteDonnees) {

		$this->methode = 'modifier';

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

		return $this->executerService();

	}

	private function initialiserRessourcesEtParametres($ressources, $parametres = array()) {

		$this->ressources = $ressources;

		$this->parametres = $parametres;

	}

	private function executerService() {

		$resultat = '';

		$reponseHttp = new ReponseHttp();

		try {

			$this->conteneur = new Conteneur($this->parametres);

			$resultat = $this->traiterRessources();

			$reponseHttp->setResultatService($resultat);

		} catch (Exception $e) {

			$reponseHttp->ajouterErreur($e);

		}

		$reponseHttp->emettreLesEntetes();

		$corps = $reponseHttp->getCorps();

		return $corps;

	}

	private function traiterRessources() {

		$this->chargerConfigService();

		$this->analyserRessources();

		$retour = $this->initialiserService();

		return $retour;

	}

	private function chargerConfigService() {

		$chemin = Config::get('chemin_configurations')."config_{$this->serviceNom}.ini";

		Config::charger($chemin);

	}

	/**

	 * URLs possibles :

	 *

	 * GET :

	 * http://localhost/del/services/0.1/determinations/images-determinations-probables =>

	 *

	 *

	 * PUT :

	 *

	 *

	 * POST :

	 * http://localhost/del/services/0.1/determinations/valider-determination/#idProposition => Permet d'accepter une proposition donnée

	 *

	 * DELETE :

	 *

	 */

	private function analyserRessources() {

		if ($this->methode == 'consulter') {

			if ($this->ressources[0] == 'images-determinations-probables') {

				$this->sousServiceNom = 'liste-images-determinations-probables';

			}

		} else if ($this->methode == 'modifier') {

			if ($this->ressources[0] == 'valider-determination') {

				$this->sousServiceNom = 'valider-determination';

			}

		}

		if ($this->sousServiceNom == null) {

			$this->lancerMessageErreurRessource();

		}

	}

	private function lancerMessageErreurRessource() {

		$ressource = $this->sousServiceNom.'/'.implode('/', $this->ressources);

		$message = "La ressource demandée '$ressource' ".

			"n'est pas disponible pour le service ".$this->serviceNom." !\n".

			"Les URLs disponibles sont : \n".

			" - en GET : determinations/images-determinations-probables \n".

			" - en POST : determinations/valider-determination";

		$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;

		throw new Exception($message, $code);

	}

	private function initialiserService() {

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

		//echo $this->sousServiceNom.':'.$classe."\n";

		//echo 'Ressources :'.print_r($this->ressources, true);

		//echo 'Parametres :'.print_r($this->parametres, true);

		$chemins = array();

		$chemins[] = $this->cheminCourant.$this->serviceNom.DS.$classe.'.php';

		$chemins[] = $this->cheminCourant.'commun'.DS.$classe.'.php';

		$retour = '';

		$service = null;

		foreach ($chemins as $chemin) {

			if (file_exists($chemin)) {

				$this->conteneur->chargerConfiguration('config_'.$this->serviceNom.'.ini');

				require_once $chemin;

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

				if ($this->methode == 'consulter') {

					$retour = $service->consulter($this->ressources, $this->parametres);

				} elseif ($this->methode == 'ajouter') {

					$retour = $service->ajouter($this->ressources, $this->parametres);

				} elseif ($this->methode == 'modifier') {

					$retour = $service->modifier($this->ressources, $this->parametres);

				} elseif ($this->methode == 'supprimer') {

					$retour = $service->supprimer($this->ressources);

				}

			}

		}

		if (is_null($service)) {

			$ressource = $this->sousServiceNom.'/'.implode('/', $this->ressources);

			$message = "Le classe '$classe' correspondant à la ressource '$ressource' ".

				"n'existe pas dans le service '{$this->serviceNom}' !";

			$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;

	}

}