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;
    }
}