/**
* Add a stream to the AppendStream
*
* @param puzzle_stream_StreamInterface $stream Stream to append. Must be readable.
*
* @throws InvalidArgumentException if the stream is not readable
*/
public function addStream(puzzle_stream_StreamInterface $stream)
{
if (!$stream->isReadable()) {
throw new InvalidArgumentException('Each stream must be readable');
}
// The stream is only seekable if all streams are seekable
if (!$stream->isSeekable()) {
$this->seekable = false;
}
$this->streams[] = $stream;
}
/**
* Returns a resource representing the stream.
*
* @param puzzle_stream_StreamInterface $stream The stream to get a resource for
*
* @return resource
* @throws InvalidArgumentException if stream is not readable or writable
*/
public static function getResource(puzzle_stream_StreamInterface $stream)
{
self::register();
if ($stream->isReadable()) {
$mode = $stream->isWritable() ? 'r+' : 'r';
} elseif ($stream->isWritable()) {
$mode = 'w';
} else {
throw new InvalidArgumentException('The stream must be readable, ' . 'writable, or both.');
}
return fopen('guzzle://stream', $mode, null, stream_context_create(array('guzzle' => array('stream' => $stream))));
}
/**
* {@inheritdoc}
*/
public function isReadable()
{
return $this->_delegate->isReadable();
}
