Subversion Repositories eFlore/Applications.del

<?php

/**

* Description :

* Classe principale de chargement des services d'eFlore.

*

* 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 Observations extends RestService {

	/*

	* url possibles :

	* http://localhost/del/services/0.1/observations/ => toutes les observations (infos obs, infos images, infos propositions, infos nb commentaires)

	* http://localhost/del/services/0.1/observations/#id => une observation donnée et ses images, SANS LES propositions & nombre de commentaire

	* */

	private $parametres = array();

	private $ressources = array();

	private $methode = null;

	private $projetNom = array();

	private $serviceNom = array();

	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';

		$resultat = '';

		$reponseHttp = new ReponseHttp();

		try {

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

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

			$resultat = $this->traiterRessources();

			$reponseHttp->setResultatService($resultat);

		} catch (Exception $e) {

			$reponseHttp->ajouterErreur($e);

		}

		$reponseHttp->emettreLesEntetes();

		$corps = $reponseHttp->getCorps();

		return $corps;

	}

	public function ajouter($ressources, $requeteDonnees) {

		$this->methode = 'ajouter';

		$resultat = '';

		$reponseHttp = new ReponseHttp();

		try {

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

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

			$resultat = $this->traiterRessources();

		} catch (Exception $e) {

			$reponseHttp->ajouterErreur($e);

			$reponseHttp->emettreLesEntetes();

		}

	}

	private function initialiserRessourcesEtParametres($ressources, $parametres) {

		$this->ressources = $ressources;

		$this->parametres = $parametres;

	}

	private function traiterRessources() {

		$retour = '';

		$this->initialiserProjet();

		if ($this->avoirRessourceService()) {

			$retour = $this->initialiserService();

		}

		return $retour;

	}

	private function avoirRessourceIdentifiant($num) {

		$presenceId = false;

			if (is_numeric($this->ressources[$num])) {

				$presenceId = true;

			} else {

				$message = "Le service demandé '$service' nécessite d'avoir un identifiant d'image valide";

				$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;

				throw new Exception($message, $code);

			}

		return $presenceId;

	}

	/*------------------------------------------------------------------------------------------------------------------

										CONFIGURATION DU PROJET

	------------------------------------------------------------------------------------------------------------------*/

	private function initialiserProjet() {

		$this->chargerNomDuProjet();

		$this->chargerConfigProjet();

	}

	private function chargerNomDuProjet() {

		$this->projetNom = 'observations';

	}

	private function chargerConfigProjet() {

		$projet = $this->projetNom;

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

		Config::charger($chemin);

	}

	/*------------------------------------------------------------------------------------------------------------------

								CONFIGURATION DU SERVICE

	------------------------------------------------------------------------------------------------------------------*/

	private function avoirRessourceService() {

		/*

		* url possibles :

		* http://localhost/del/services/0.1/observations/ => toutes les observations (infos obs, infos images, infos propositions, infos nb commentaires)

		* http://localhost/del/services/0.1/observations/#id => une observation donnée et ses images, SANS LES propositions & nombre de commentaire

		* */

		$presenceRessourceService = false;

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

			if ($this->avoirRessourceIdentifiant(0)) {

				if (sizeof($this->ressources) == 1) {

					$presenceRessourceService = true;

					$this->serviceNom = 'observation';

				} else {

					if (isset($this->ressources[1])) {

						$presenceRessourceService = $this->avoirRessourceSousService();

					}

				}

			}

		} else {

			$presenceRessourceService = true;

			$this->serviceNom = 'liste-observations';

		}

		return $presenceRessourceService;

	}

	private function avoirRessourceSousService() {

		$presenceRessourceService = false;

		$servicesDispo = Outils::recupererTableauConfig('servicesDispo');

		if ($this->avoirRessourceIdentifiant(1)) {

			$service = $this->ressources[2];

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

				$presenceRessourceService = true;

				$this->serviceNom = 'vote-observation';

			} else {

				$message = "Le service demandé '$service' n'est pas disponible pour le projet {$this->projetNom} !\n".

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

				$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;

				throw new Exception($message, $code);

			}

		}

		return $presenceRessourceService;

	}

	private function initialiserService() {

		//$this->chargerNomDuService();

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

		$chemins = array();

		$chemins[] = $this->cheminCourant.$this->projetNom.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->projetNom.'.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);

				}

			}

		}

		if (is_null($service)) {

			$message = "Le service demandé '{$this->serviceNom}' n'existe pas dans le projet {$this->projetNom} !";

			$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;

	}

}

?>