ResourceStream::seek() - Code Metrics - Wandu/Framework - Measure and Improve Code Quality continuously with Scrutinizer

ResourceStream::seek() A
last analyzed 2018-03-08 03:43 UTC

↳ Parent: ResourceStream

Complexity

Conditions	3
Paths	3

Size

Total Lines	10
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	3.0261

Importance

Changes

Metric	Value
cc	3
eloc	6
nc	3
nop	2
dl	0
loc	10
ccs	6
cts	7
cp	0.8571
crap	3.0261
rs	9.4285
c	0
b	0
f	0

<?php
namespace Wandu\Http\Psr\Stream;

use InvalidArgumentException;
use Psr\Http\Message\StreamInterface;
use Wandu\Http\Psr\Stream;
use RuntimeException;

class ResourceStream implements StreamInterface
{
    /** @var resource */
    protected $resource;

    /**
     * @param resource $resource
     */
    public function __construct($resource)
    {
        if (!is_resource($resource) || get_resource_type($resource) !== 'stream') {
            throw new InvalidArgumentException("Argument 1 must be of the type stream resource.");
        }
        $this->resource = $resource;
    }
    
    /**
     * {@inheritdoc}
     */
    public function __toString()
    {
        if (!$this->isReadable()) {
            return '';
        }
        try {
            $this->rewind();
            return $this->getContents();
        } catch (RuntimeException $e) {
            return '';
        }
    }

    /**
     * {@inheritdoc}
     */
    public function close()
    {
        if (!$this->resource) {
            return;
        }
        $resource = $this->detach();
        fclose($resource);
    }

    /**
     * {@inheritdoc}
     */
    public function detach()
    {
        $resource = $this->resource;
        $this->resource = null;
        return $resource;
    }

    /**
     * {@inheritdoc}
     */
    public function getSize()
    {
        if (!isset($this->resource)) {
            return null;
        }
        return fstat($this->resource)['size'];
    }

    /**
     * {@inheritdoc}
     */
    public function tell()
    {
        $this->isAvailableAndException();
        $result = ftell($this->resource);
        if (!is_int($result)) {
            throw new RuntimeException('Error occurred during tell operation');
        }
        return $result;
    }

    /**
     * {@inheritdoc}
     */
    public function eof()
    {
        if (!$this->resource) {
            return true;
        }
        return feof($this->resource);
    }

    /**
     * {@inheritdoc}
     */
    public function isSeekable()
    {
        if (!$this->resource) {
            return false;
        }
        return stream_get_meta_data($this->resource)['seekable'];
    }

    /**
     * {@inheritdoc}
     */
    public function seek($offset, $whence = SEEK_SET)
    {
        $this->isAvailableAndException();
        if (!$this->isSeekable()) {
            throw new RuntimeException('Stream is not seekable');
        }
        if (0 !== fseek($this->resource, $offset, $whence)) {
            throw new RuntimeException('Error seeking within stream.');
        }
    }

    /**
     * {@inheritdoc}
     */
    public function rewind()
    {
        $this->seek(0);
    }

    /**
     * {@inheritdoc}
     */
    public function isWritable()
    {
        if (!$this->resource) {
            return false;
        }
        $mode = stream_get_meta_data($this->resource)['mode'];
        return strpos($mode, 'w') !== false || strpos($mode, '+') !== false;
    }

    /**
     * {@inheritdoc}
     */
    public function write($string)
    {
        $this->isAvailableAndException();
        if (!$this->isWritable()) {
            throw new RuntimeException('Stream is not writable.');
        }
        if (false === $result = fwrite($this->resource, $string)) {
            throw new RuntimeException('Error writing to stream.');
        }
        return $result;
    }

    /**
     * {@inheritdoc}
     */
    public function isReadable()
    {
        if (!$this->resource) {
            return false;
        }
        $mode = stream_get_meta_data($this->resource)['mode'];
        return strpos($mode, 'r') !== false || strpos($mode, '+') !== false;
    }

    /**
     * {@inheritdoc}
     */
    public function read($length)
    {
        $this->isAvailableAndException();
        if (!$this->isReadable()) {
            throw new RuntimeException('Stream is not readable.');
        }
        if (false === $result = fread($this->resource, $length)) {
            throw new RuntimeException('Error reading from stream.');
        }
        return $result;
    }

    /**
     * {@inheritdoc}
     */
    public function getContents()
    {
        if (!$this->isReadable()) {
            return '';
        }
        if (false === $result = stream_get_contents($this->resource)) {
            throw new RuntimeException('Error reading from stream.');
        }
        return $result;
    }

    /**
     * {@inheritdoc}
     */
    public function getMetadata($key = null)
    {
        $metaData = stream_get_meta_data($this->resource);
        if (!isset($key)) {
            return $metaData;
        }
        return isset($metaData[$key]) ? $metaData[$key] : null;
    }

    /**
     * @throws \RuntimeException
     */
    protected function isAvailableAndException()
    {
        if (!$this->resource) {
            throw new RuntimeException('No resource available.');
        }
    }
}


1		<?php
2		namespace Wandu\Http\Psr\Stream;
3
4		use InvalidArgumentException;
5		use Psr\Http\Message\StreamInterface;
6		use Wandu\Http\Psr\Stream;
7		use RuntimeException;
8
9		class ResourceStream implements StreamInterface
10		{
11		/** @var resource */
12		protected $resource;
13
14		/**
15		* @param resource $resource
16		*/
17	27	public function __construct($resource)
18		{
19	27	if (!is_resource($resource) \|\| get_resource_type($resource) !== 'stream') {
20		throw new InvalidArgumentException("Argument 1 must be of the type stream resource.");
21		}
22	27	$this->resource = $resource;
23	27	}
24
25		/**
26		* {@inheritdoc}
27		*/
28	15	public function __toString()
29		{
30	15	if (!$this->isReadable()) {
31	2	return '';
32		}
33		try {
34	13	$this->rewind();
35	13	return $this->getContents();
36		} catch (RuntimeException $e) {
37		return '';
38		}
39		}
40
41		/**
42		* {@inheritdoc}
43		*/
44	2	public function close()
45		{
46	2	if (!$this->resource) {
47	2	return;
48		}
49	2	$resource = $this->detach();
50	2	fclose($resource);
51	2	}
52
53		/**
54		* {@inheritdoc}
55		*/
56	2	public function detach()
57		{
58	2	$resource = $this->resource;
59	2	$this->resource = null;
60	2	return $resource;
61		}
62
63		/**
64		* {@inheritdoc}
65		*/
66	4	public function getSize()
67		{
68	4	if (!isset($this->resource)) {
69	2	return null;
70		}
71	2	return fstat($this->resource)['size'];
72		}
73
74		/**
75		* {@inheritdoc}
76		*/
77	2	public function tell()
78		{
79	2	$this->isAvailableAndException();
80	2	$result = ftell($this->resource);
81	2	if (!is_int($result)) {
82		throw new RuntimeException('Error occurred during tell operation');
83		}
84	2	return $result;
85		}
86
87		/**
88		* {@inheritdoc}
89		*/
90	4	public function eof()
91		{
92	4	if (!$this->resource) {
93	2	return true;
94		}
95	2	return feof($this->resource);
96		}
97
98		/**
99		* {@inheritdoc}
100		*/
101	18	public function isSeekable()
102		{
103	18	if (!$this->resource) {
104	2	return false;
105		}
106	16	return stream_get_meta_data($this->resource)['seekable'];
107		}
108
109		/**
110		* {@inheritdoc}
111		*/
112	15	public function seek($offset, $whence = SEEK_SET)
113		{
114	15	$this->isAvailableAndException();
115	15	if (!$this->isSeekable()) {
116		throw new RuntimeException('Stream is not seekable');
117		}
118	15	if (0 !== fseek($this->resource, $offset, $whence)) {
119	1	throw new RuntimeException('Error seeking within stream.');
120		}
121	15	}
122
123		/**
124		* {@inheritdoc}
125		*/
126	13	public function rewind()
127		{
128	13	$this->seek(0);
129	13	}
130
131		/**
132		* {@inheritdoc}
133		*/
134	10	public function isWritable()
135		{
136	10	if (!$this->resource) {
137	2	return false;
138		}
139	8	$mode = stream_get_meta_data($this->resource)['mode'];
140	8	return strpos($mode, 'w') !== false \|\| strpos($mode, '+') !== false;
141		}
142
143		/**
144		* {@inheritdoc}
145		*/
146	9	public function write($string)
147		{
148	9	$this->isAvailableAndException();
149	7	if (!$this->isWritable()) {
150	1	throw new RuntimeException('Stream is not writable.');
151		}
152	6	if (false === $result = fwrite($this->resource, $string)) {
153		throw new RuntimeException('Error writing to stream.');
154		}
155	6	return $result;
156		}
157
158		/**
159		* {@inheritdoc}
160		*/
161	19	public function isReadable()
162		{
163	19	if (!$this->resource) {
164	2	return false;
165		}
166	17	$mode = stream_get_meta_data($this->resource)['mode'];
167	17	return strpos($mode, 'r') !== false \|\| strpos($mode, '+') !== false;
168		}
169
170		/**
171		* {@inheritdoc}
172		*/
173	3	public function read($length)
174		{
175	3	$this->isAvailableAndException();
176	3	if (!$this->isReadable()) {
177	1	throw new RuntimeException('Stream is not readable.');
178		}
179	2	if (false === $result = fread($this->resource, $length)) {
180		throw new RuntimeException('Error reading from stream.');
181		}
182	2	return $result;
183		}
184
185		/**
186		* {@inheritdoc}
187		*/
188	15	public function getContents()
189		{
190	15	if (!$this->isReadable()) {
191		return '';
192		}
193	15	if (false === $result = stream_get_contents($this->resource)) {
194		throw new RuntimeException('Error reading from stream.');
195		}
196	15	return $result;
197		}
198
199		/**
200		* {@inheritdoc}
201		*/
202	4	public function getMetadata($key = null)
203		{
204	4	$metaData = stream_get_meta_data($this->resource);
205	4	if (!isset($key)) {
206	2	return $metaData;
207		}
208	4	return isset($metaData[$key]) ? $metaData[$key] : null;
209		}
210
211		/**
212		* @throws \RuntimeException
213		*/
214	18	protected function isAvailableAndException()
215		{
216	18	if (!$this->resource) {
217	2	throw new RuntimeException('No resource available.');
218		}
219	16	}
220		}
221

Wandu / Framework

ResourceStream::seek() A last analyzed 2018-03-08 03:43 UTC

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ResourceStream::seek() A
last analyzed 2018-03-08 03:43 UTC