FileBasedMessageGroup.php

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<?php
class FileBasedMessageGroup extends MessageGroupBase {
    protected $reverseCodeMap;

    public static function newFromMessageGroup( $group ) {
        $conf = array(
            'BASIC' => array(
                'class' => 'FileBasedMessageGroup',
                'id' => $group->getId(),
                'label' => $group->getLabel(),
                'namespace' => $group->getNamespace(),
            ),
            'FILES' => array(
                'sourcePattern' => '',
                'targetPattern' => '',
            ),
        );

        return MessageGroupBase::factory( $conf );
    }

    public function exists() {
        return $this->getFFS()->exists();
    }

    public function load( $code ) {
        $ffs = $this->getFFS();
        $data = $ffs->read( $code );

        return $data ? $data['MESSAGES'] : array();
    }

    public function getSourceFilePath( $code ) {
        if ( $this->isSourceLanguage( $code ) ) {
            $pattern = $this->getFromConf( 'FILES', 'definitionFile' );

            if ( $pattern !== null ) {
                return $this->replaceVariables( $pattern, $code );
            }
        }

        $pattern = $this->getFromConf( 'FILES', 'sourcePattern' );

        if ( $pattern === null ) {
            throw new MWException( 'No source file pattern defined.' );
        }

        return $this->replaceVariables( $pattern, $code );
    }

    public function getTargetFilename( $code ) {
        $pattern = $this->getFromConf( 'FILES', 'targetPattern' );

        if ( $pattern === null ) {
            throw new MWException( 'No target file pattern defined.' );
        }

        return $this->replaceVariables( $pattern, $code );
    }

    protected function replaceVariables( $pattern, $code ) {
        global $IP, $wgTranslateGroupRoot;

        $variables = array(
            '%CODE%' => $this->mapCode( $code ),
            '%MWROOT%' => $IP,
            '%GROUPROOT%' => $wgTranslateGroupRoot,
        );

        return str_replace( array_keys( $variables ), array_values( $variables ), $pattern );
    }

    public function mapCode( $code ) {
        if ( !isset( $this->conf['FILES']['codeMap'] ) ) {
            return $code;
        }

        if ( isset( $this->conf['FILES']['codeMap'][$code] ) ) {
            return $this->conf['FILES']['codeMap'][$code];
        } else {
            if ( !isset( $this->reverseCodeMap ) ) {
                $this->reverseCodeMap = array_flip( $this->conf['FILES']['codeMap'] );
            }

            if ( isset( $this->reverseCodeMap[$code] ) ) {
                return 'x-invalidLanguageCode';
            }

            return $code;
        }
    }
}