class.ilTermsOfServiceTableDataProviderFactory.php

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<?php
/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilTermsOfServiceTableDataProviderFactory
{
    protected $db;

    const CONTEXT_ACCEPTANCE_HISTORY = 'acceptance_history';
    const CONTEXT_DOCUMENTS = 'documents';

    public function getByContext(string $context) : \ilTermsOfServiceTableDataProvider
    {
        switch ($context) {
            case self::CONTEXT_ACCEPTANCE_HISTORY:
                $this->validateConfiguration(array('db'));
                return new \ilTermsOfServiceAcceptanceHistoryProvider($this->getDatabaseAdapter());

            case self::CONTEXT_DOCUMENTS:
                return new \ilTermsOfServiceDocumentTableDataProvider();

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

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

    protected function getExceptionByMember($member)
    {
        switch ($member) {
            case 'db':
                return new \ilTermsOfServiceMissingDatabaseAdapterException(
                    'Incomplete factory configuration. Please inject a database adapter.'
                );

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

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

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