Stream::isSeekable() - Code Metrics - zapheus/psr-07-bridge - Measure and Improve Code Quality continuously with Scrutinizer

Stream::isSeekable() A
last analyzed 2020-10-04 15:14 UTC

↳ Parent: Stream

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php

namespace Zapheus\Bridge\Psr;

use Psr\Http\Message\StreamInterface;

/**
 * Stream
 *
 * @package Zapheus
 * @author  Rougin Gutib <[email protected]>
 */
class Stream implements StreamInterface
{
    /**
     * @var array|null
     */
    protected $meta = null;

    /**
     * @var array
     */
    protected $readable = array('r', 'r+', 'w+', 'a+', 'x+', 'c+', 'w+b');

    /**
     * @var integer|null
     */
    protected $size = null;

    /**
     * @var resource|null
     */
    protected $stream = null;

    /**
     * @var array
     */
    protected $writable = array('r+', 'w', 'w+', 'a', 'a+', 'x', 'x+', 'c', 'c+', 'w+b');

    /**
     * Initializes the stream instance.
     *
     * @param resource|null $stream
     */
    public function __construct($stream = null)
    {
        $this->stream = $stream;
    }

    /**
     * Reads all data from the stream into a string, from the beginning to end.
     *
     * @return string
     */
    public function __toString()
    {
        $this->rewind();

        return $this->getContents();
    }

    /**
     * Closes the stream and any underlying resources.
     *
     * @return void
     */
    public function close()
    {
        $this->stream === null ?: fclose($this->stream);

        $this->detach();
    }

    /**
     * Separates any underlying resources from the stream.
     *
     * @return resource|null
     */
    public function detach()
    {
        $stream = $this->stream;

        $this->meta = null;

        $this->size = null;

        $this->stream = null;

        return $stream;
    }

    /**
     * Returns true if the stream is at the end of the stream.
     *
     * @return boolean
     */
    public function eof()
    {
        return $this->stream === null ?: feof($this->stream);
    }

    /**
     * Returns the remaining contents in a string
     *
     * @return string
     *
     * @throws \RuntimeException
     */
    public function getContents()
    {
        if ($this->stream === null || ! $this->isReadable())
        {
            $message = 'Could not get contents of stream';

            throw new \RuntimeException((string) $message);
        }

        return stream_get_contents($this->stream);
    }

    /**
     * Returns stream metadata as an associative array or retrieve a specific key.
     *
     * @param  string $key
     * @return array|mixed|null
     */
    public function getMetadata($key = null)
    {
        isset($this->stream) && $this->meta = stream_get_meta_data($this->stream);

        $metadata = isset($this->meta[$key]) ? $this->meta[$key] : null;

        return $key === null ? (array) $this->meta : $metadata;
    }

    /**
     * Returns the size of the stream if known.
     *
     * @return integer|null
     */
    public function getSize()
    {
        if (is_null($this->size) === true)
        {
            $stats = fstat($this->stream);

            $this->size = $stats['size'];
        }

        return $this->size;
    }

    /**
     * Returns whether or not the stream is readable.
     *
     * @return boolean
     */
    public function isReadable()
    {
        $mode = (string) $this->getMetadata('mode');

        return in_array($mode, $this->readable);
    }

    /**
     * Returns whether or not the stream is seekable.
     *
     * @return boolean
     */
    public function isSeekable()
    {
        return $this->getMetadata('seekable');
    }

    /**
     * Returns whether or not the stream is writable.
     *
     * @return boolean
     */
    public function isWritable()
    {
        $mode = (string) $this->getMetadata('mode');

        return in_array($mode, $this->writable);
    }

    /**
     * Read data from the stream.
     *
     * @param  integer $length
     * @return string
     *
     * @throws \RuntimeException
     */
    public function read($length)
    {
        $data = fread($this->stream, $length);

        if (! $this->isReadable() || $data === false)
        {
            $message = 'Could not read from stream';

            throw new \RuntimeException($message);
        }

        return $data;
    }

    /**
     * Seek to the beginning of the stream.
     *
     * @throws \RuntimeException
     */
    public function rewind()
    {
        $this->seek(0);
    }

    /**
     * Seek to a position in the stream.
     *
     * @param integer $offset
     * @param integer $whence
     *
     * @throws \RuntimeException
     */
    public function seek($offset, $whence = SEEK_SET)
    {
        $seek = -1;

        $this->stream && $seek = fseek($this->stream, $offset, $whence);

        if (! $this->isSeekable() || $seek === -1)
        {
            $message = 'Could not seek in stream';

            throw new \RuntimeException($message);
        }
    }

    /**
     * Returns the current position of the file read/write pointer.
     *
     * @return integer
     *
     * @throws \RuntimeException
     */
    public function tell()
    {
        $position = false;

        $this->stream && $position = ftell($this->stream);

        if ($this->stream === null || $position === false)
        {
            $message = 'Could not get position of pointer in stream';

            throw new \RuntimeException((string) $message);
        }

        return $position;
    }

    /**
     * Write data to the stream.
     *
     * @param  string $string
     * @return integer
     *
     * @throws \RuntimeException
     */
    public function write($string)
    {
        if ($this->isWritable() === false)
        {
            $message = 'Stream is not writable';

            throw new \RuntimeException($message);
        }

        $this->size = null;

        return fwrite($this->stream, $string);
    }
}


1		<?php
2
3		namespace Zapheus\Bridge\Psr;
4
5		use Psr\Http\Message\StreamInterface;
6
7		/**
8		* Stream
9		*
10		* @package Zapheus
11		* @author Rougin Gutib <[email protected]>
12		*/
13		class Stream implements StreamInterface
14		{
15		/**
16		* @var array\|null
17		*/
18		protected $meta = null;
19
20		/**
21		* @var array
22		*/
23		protected $readable = array('r', 'r+', 'w+', 'a+', 'x+', 'c+', 'w+b');
24
25		/**
26		* @var integer\|null
27		*/
28		protected $size = null;
29
30		/**
31		* @var resource\|null
32		*/
33		protected $stream = null;
34
35		/**
36		* @var array
37		*/
38		protected $writable = array('r+', 'w', 'w+', 'a', 'a+', 'x', 'x+', 'c', 'c+', 'w+b');
39
40		/**
41		* Initializes the stream instance.
42		*
43		* @param resource\|null $stream
44		*/
45	177	public function __construct($stream = null)
46		{
47	177	$this->stream = $stream;
48	177	}
49
50		/**
51		* Reads all data from the stream into a string, from the beginning to end.
52		*
53		* @return string
54		*/
55	15	public function __toString()
56		{
57	15	$this->rewind();
58
59	15	return $this->getContents();
60		}
61
62		/**
63		* Closes the stream and any underlying resources.
64		*
65		* @return void
66		*/
67	9	public function close()
68		{
69	9	$this->stream === null ?: fclose($this->stream);
70
71	9	$this->detach();
72	9	}
73
74		/**
75		* Separates any underlying resources from the stream.
76		*
77		* @return resource\|null
78		*/
79	24	public function detach()
80		{
81	24	$stream = $this->stream;
82
83	24	$this->meta = null;
84
85	24	$this->size = null;
86
87	24	$this->stream = null;
88
89	24	return $stream;
90		}
91
92		/**
93		* Returns true if the stream is at the end of the stream.
94		*
95		* @return boolean
96		*/
97	3	public function eof()
98		{
99	3	return $this->stream === null ?: feof($this->stream);
100		}
101
102		/**
103		* Returns the remaining contents in a string
104		*
105		* @return string
106		*
107		* @throws \RuntimeException
108		*/
109	24	public function getContents()
110		{
111	24	if ($this->stream === null \|\| ! $this->isReadable())
112	8	{
113	9	$message = 'Could not get contents of stream';
114
115	9	throw new \RuntimeException((string) $message);
116		}
117
118	15	return stream_get_contents($this->stream);
119		}
120
121		/**
122		* Returns stream metadata as an associative array or retrieve a specific key.
123		*
124		* @param string $key
125		* @return array\|mixed\|null
126		*/
127	51	public function getMetadata($key = null)
128		{
129	51	isset($this->stream) && $this->meta = stream_get_meta_data($this->stream);
130
131	51	$metadata = isset($this->meta[$key]) ? $this->meta[$key] : null;
132
133	51	return $key === null ? (array) $this->meta : $metadata;
134		}
135
136		/**
137		* Returns the size of the stream if known.
138		*
139		* @return integer\|null
140		*/
141	3	public function getSize()
142		{
143	3	if (is_null($this->size) === true)
144	1	{
145	3	$stats = fstat($this->stream);
146
147	3	$this->size = $stats['size'];
148	1	}
149
150	3	return $this->size;
151		}
152
153		/**
154		* Returns whether or not the stream is readable.
155		*
156		* @return boolean
157		*/
158	33	public function isReadable()
159		{
160	33	$mode = (string) $this->getMetadata('mode');
161
162	33	return in_array($mode, $this->readable);
163		}
164
165		/**
166		* Returns whether or not the stream is seekable.
167		*
168		* @return boolean
169		*/
170	21	public function isSeekable()
171		{
172	21	return $this->getMetadata('seekable');
173		}
174
175		/**
176		* Returns whether or not the stream is writable.
177		*
178		* @return boolean
179		*/
180	12	public function isWritable()
181		{
182	12	$mode = (string) $this->getMetadata('mode');
183
184	12	return in_array($mode, $this->writable);
185		}
186
187		/**
188		* Read data from the stream.
189		*
190		* @param integer $length
191		* @return string
192		*
193		* @throws \RuntimeException
194		*/
195	12	public function read($length)
196		{
197	12	$data = fread($this->stream, $length);
198
199	12	if (! $this->isReadable() \|\| $data === false)
200	4	{
201	6	$message = 'Could not read from stream';
202
203	6	throw new \RuntimeException($message);
204		}
205
206	6	return $data;
207		}
208
209		/**
210		* Seek to the beginning of the stream.
211		*
212		* @throws \RuntimeException
213		*/
214	12	public function rewind()
215		{
216	12	$this->seek(0);
217	12	}
218
219		/**
220		* Seek to a position in the stream.
221		*
222		* @param integer $offset
223		* @param integer $whence
224		*
225		* @throws \RuntimeException
226		*/
227	21	public function seek($offset, $whence = SEEK_SET)
228		{
229	21	$seek = -1;
230
231	21	$this->stream && $seek = fseek($this->stream, $offset, $whence);
232
233	21	if (! $this->isSeekable() \|\| $seek === -1)
234	7	{
235	6	$message = 'Could not seek in stream';
236
237	6	throw new \RuntimeException($message);
238		}
239	15	}
240
241		/**
242		* Returns the current position of the file read/write pointer.
243		*
244		* @return integer
245		*
246		* @throws \RuntimeException
247		*/
248	9	public function tell()
249		{
250	9	$position = false;
251
252	9	$this->stream && $position = ftell($this->stream);
253
254	9	if ($this->stream === null \|\| $position === false)
255	3	{
256	6	$message = 'Could not get position of pointer in stream';
257
258	6	throw new \RuntimeException((string) $message);
259		}
260
261	3	return $position;
262		}
263
264		/**
265		* Write data to the stream.
266		*
267		* @param string $string
268		* @return integer
269		*
270		* @throws \RuntimeException
271		*/
272	12	public function write($string)
273		{
274	12	if ($this->isWritable() === false)
275	4	{
276	6	$message = 'Stream is not writable';
277
278	6	throw new \RuntimeException($message);
279		}
280
281	6	$this->size = null;
282
283	6	return fwrite($this->stream, $string);
284		}
285		}
286

zapheus / psr-07-bridge

Stream::isSeekable() A last analyzed 2020-10-04 15:14 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

Stream::isSeekable() A
last analyzed 2020-10-04 15:14 UTC