1 <?php
 2 
 3 namespace Http\Message\Encoding;
 4 
 5 use Psr\Http\Message\StreamInterface;
 6 
 7 /**
 8  * Stream deflate (RFC 1951).
 9  *
10  * @author Joel Wurtz <joel.wurtz@gmail.com>
11  */
12 class DeflateStream extends FilteredStream
13 {
14     /**
15      * @param StreamInterface $stream
16      * @param int             $level
17      */
18     public function __construct(StreamInterface $stream, $level = -1)
19     {
20         parent::__construct($stream, ['window' => -15, 'level' => $level], ['window' => -15]);
21     }
22 
23     /**
24      * {@inheritdoc}
25      */
26     public function getReadFilter()
27     {
28         return 'zlib.deflate';
29     }
30 
31     /**
32      * {@inheritdoc}
33      */
34     public function getWriteFilter()
35     {
36         return 'zlib.inflate';
37     }
38 }
39 

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