Completed
Push — 1.x ( ee8545...084efb )
by Joel
02:48
created

CallbackStream::wait()   A

Complexity

Conditions 4
Paths 4

Size

Total Lines 12
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 1
Metric Value
c 1
b 0
f 1
dl 0
loc 12
rs 9.2
cc 4
eloc 6
nc 4
nop 0
1
<?php
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namespace Docker\Stream;
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use Psr\Http\Message\StreamInterface;
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abstract class CallbackStream
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{
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    protected $stream;
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    private $onNewFrameCallables = [];
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    public function __construct(StreamInterface $stream)
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    {
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        $this->stream = $stream;
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    }
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    /**
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     * Called when there is a new frame from the stream
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     *
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     * @param callable $onNewFrame
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     */
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    public function onFrame(callable $onNewFrame)
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    {
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        $this->onNewFrameCallables[] = $onNewFrame;
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    }
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    /**
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     * Read a frame in the stream
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     *
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     * @return mixed
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     */
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    abstract protected function readFrame();
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    /**
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     * Wait for stream to finish and call callables if defined
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     */
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    public function wait()
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    {
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        while (!$this->stream->eof()) {
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            $frame = $this->readFrame();
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            if ($frame !== null) {
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                foreach ($this->onNewFrameCallables as $newFrameCallable) {
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                    $newFrameCallable($frame);
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                }
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            }
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        }
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    }
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}
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