public function execute() {
		$handler = new PagedTiffHandler();

		$path = $this->mArgs[0];
		$file = UnregisteredLocalFile::newFromPath($path, "image/tiff");

		$metadata = $handler->getMetadata( $file, $path );

		if ( !$metadata ) {
		    print "FAILED! \n";
		    return;
		} 

		$metadata = unserialize( $metadata );

		if ( !$metadata ) {
		    print "BROKEN! \n";
		    return;
		} 

		print_r($metadata);
	}
	/**
	 * Get an array structure that looks like this:
	 *
	 * array(
	 *	'visible' => array(
	 *	   'Human-readable name' => 'Human readable value',
	 *	   ...
	 *	),
	 *	'collapsed' => array(
	 *	   'Human-readable name' => 'Human readable value',
	 *	   ...
	 *	)
	 * )
	 * The UI will format this into a table where the visible fields are always
	 * visible, and the collapsed fields are optionally visible.
	 *
	 * The function should return false if there is no metadata to display.
	 */

	function formatMetadata( $image ) {
		$result = array(
			'visible' => array(),
			'collapsed' => array()
		);
		$metadata = $image->getMetadata();
		if ( !$metadata ) {
			return false;
		}
		$exif = unserialize( $metadata );
		$exif = $exif['exif'];
		if ( !$exif ) {
			return false;
		}
		unset( $exif['MEDIAWIKI_EXIF_VERSION'] );
		if ( class_exists( 'FormatMetadata' ) ) {
			// 1.18+
			$formatted = FormatMetadata::getFormattedData( $exif );
		} else {
			// 1.17 and earlier.
			$format = new FormatExif( $exif );

			$formatted = $format->getFormattedData();
		}
		// Sort fields into visible and collapsed
		$visibleFields = $this->visibleMetadataFields();
		foreach ( $formatted as $name => $value ) {
			$tag = strtolower( $name );
			self::addMeta( $result,
				in_array( $tag, $visibleFields ) ? 'visible' : 'collapsed',
				'exif',
				$tag,
				$value
			);
		}
		$meta = unserialize( $metadata );
		$errors_raw = PagedTiffHandler::getMetadataErrors( $meta );
		if ( $errors_raw ) {
			$errors = PagedTiffHandler::joinMessages( $errors_raw );
			self::addMeta( $result,
				'collapsed',
				'metadata',
				'error',
				$errors
			);
			// XXX: need translation for <metadata-error>
		}
		if ( !empty( $meta['warnings'] ) ) {
			$warnings = PagedTiffHandler::joinMessages( $meta['warnings'] );
			self::addMeta( $result,
				'collapsed',
				'metadata',
				'warning',
				$warnings
			);
			// XXX: need translation for <metadata-warning>
		}
		return $result;
	}