class.ilTermsOfServiceTableDataProviderFactory.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilTermsOfServiceTableDataProviderFactory
{
        protected $lng;

        protected $db;

        const CONTEXT_AGRREMENT_BY_LANGUAGE = 'agreements_by_language';

        const CONTEXT_ACCEPTANCE_HISTORY = 'acceptance_history';

        public function getByContext($context)
        {
                switch($context)
                {
                        case self::CONTEXT_AGRREMENT_BY_LANGUAGE:
                                $this->validateConfiguration(array('lng'));
                                require_once 'Services/TermsOfService/classes/class.ilTermsOfServiceAgreementByLanguageProvider.php';
                                return new ilTermsOfServiceAgreementByLanguageProvider($this->lng);

                        case self::CONTEXT_ACCEPTANCE_HISTORY:
                                $this->validateConfiguration(array('db'));
                                require_once 'Services/TermsOfService/classes/class.ilTermsOfServiceAcceptanceHistoryProvider.php';
                                return new ilTermsOfServiceAcceptanceHistoryProvider($this->getDatabaseAdapter());

                        default:
                                throw new InvalidArgumentException('Provider not supported');
                }
        }

        protected function validateConfiguration(array $mandatory_members)
        {
                foreach($mandatory_members as $member)
                {
                        if(null == $this->{$member})
                        {
                                $exception = $this->getExceptionByMember($member);
                                throw $exception;
                        }
                }
        }

        protected function getExceptionByMember($member)
        {
                switch($member)
                {
                        case 'lng':
                                require_once 'Services/TermsOfService/exceptions/class.ilTermsOfServiceMissingLanguageAdapterException.php';
                                return new ilTermsOfServiceMissingLanguageAdapterException('Incomplete factory configuration. Please inject a language adapter.');

                        case 'db':
                                require_once 'Services/TermsOfService/exceptions/class.ilTermsOfServiceMissingDatabaseAdapterException.php';
                                return new ilTermsOfServiceMissingDatabaseAdapterException('Incomplete factory configuration. Please inject a database adapter.');

                        default:
                                throw new InvalidArgumentException("Exveption for member {$member} not supported");
                }
        }

        public function setLanguageAdapter($lng)
        {
                $this->lng = $lng;
        }

        public function getLanguageAdapter()
        {
                return $this->lng;
        }

        public function setDatabaseAdapter($db)
        {
                $this->db = $db;
        }

        public function getDatabaseAdapter()
        {
                return $this->db;
        }
}