MemoryStream::isOpen() - Code Metrics - Inspection of "Adding fix for empty empty response buffer in gzde..." - maikgreubel/phpgenerics - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a91f17...e1c233 )

by Maik

created 2017-09-03 08:16 UTC

MemoryStream::isOpen() A

↳ Parent: MemoryStream

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	0
cts	2
cp	0
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0
crap	2

<?php

/**
 * This file is part of the PHP Generics package.
 *
 * @package Generics
 */
namespace Generics\Streams;

use Generics\Util\Interpolator;

/**
 * This class provides a memory stream for both input and output
 *
 * @author Maik Greubel <[email protected]>
 */
class MemoryStream implements InputOutputStream
{
    use Interpolator {
        interpolate as tinterpolate;
    }

    /**
     * The local memory buffer
     *
     * @var string
     */
    private $memory;

    /**
     * Current position in memory buffer
     *
     * @var int
     */
    private $current;

    /**
     * Whether it is possible to perform reading action
     *
     * @var boolean
     */
    private $ready;

    /**
     * Whether stream is closed
     *
     * @var boolean
     */
    private $closed;

    /**
     * Create a new MemoryStream
     *
     * @param InputStream $in
     *            optional existing input stream - will be copied
     */
    public function __construct(InputStream $in = null)
    {
        $this->memory = "";
        if ($in != null) {
            $copy = clone $in;
            $copy->reset();
            while ($copy->ready()) {
                $this->memory .= $copy->read();
            }
            $copy->close();
        }
        $this->current = 0;
        $this->ready = true;
        $this->closed = false;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\Stream::close()
     */
    public function close()
    {
        unset($this->memory);
        $this->current = 0;
        $this->ready = false;
        $this->closed = true;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\Stream::ready()
     */
    public function ready(): bool
    {
        return $this->ready;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\OutputStream::write()
     */
    public function write($buffer)
    {
        if ($this->closed) {
            throw new StreamException("Stream is not open");
        }
        $this->memory .= $buffer;
        $this->ready = true;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\InputStream::read()
     */
    public function read($length = 1, $offset = null): string
    {
        if ($this->closed) {
            throw new StreamException("Stream is not open");
        }
        
        if ($offset !== null) {
            $this->current = intval($offset);
        }
        
        if (strlen($this->memory) <= $this->current) {
            $this->ready = false;
            return "";
        }
        
        if (strlen($this->memory) - $this->current < $length) {
            $length = strlen($this->memory) - $this->current;
        }
        
        $out = substr($this->memory, $this->current, $length);
        $this->current += $length;
        
        if ($this->current == strlen($this->memory)) {
            $this->ready = false;
        }
        
        return $out;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Countable::count()
     */
    public function count(): int
    {
        if ($this->closed) {
            throw new StreamException("Stream is not open");
        }
        if (! isset($this->memory)) {
            return 0;
        }
        return strlen($this->memory);
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Resettable::reset()
     */
    public function reset()
    {
        if ($this->closed) {
            throw new StreamException("Stream is not open");
        }
        $this->current = 0;
        $this->ready = true;
    }

    /**
     * Write to stream by interpolation of context vars into a string
     *
     * @param string $string
     *            The string to interpolate, may contains placeholders in format {placeholder}.
     * @param array $context
     *            The context array containing the associative replacers and its values.
     */
    public function interpolate($string, array $context)
    {
        $this->write($this->tinterpolate($string, $context));
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\OutputStream::isWriteable()
     */
    public function isWriteable(): bool
    {
        return true;
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\OutputStream::flush()
     */
    public function flush()
    {
        if ($this->closed) {
            throw new StreamException("Stream is not open");
        }
        
        unset($this->memory);
        $this->memory = "";
        $this->reset();
    }

    /**
     *
     * {@inheritdoc}
     * @see \Generics\Streams\Stream::isOpen()
     */
    public function isOpen(): bool
    {
        return true;
    }

    /**
     * Retrieve the whole memory string content
     * 
     * @return string
     */
    public function slurp(): string
    {
        $str = "";
        while ($this->ready()) {
            $str .= $this->read($this->count());
        }
        
        return $str;
    }
}


1		<?php
2
3		/**
4		* This file is part of the PHP Generics package.
5		*
6		* @package Generics
7		*/
8		namespace Generics\Streams;
9
10		use Generics\Util\Interpolator;
11
12		/**
13		* This class provides a memory stream for both input and output
14		*
15		* @author Maik Greubel <[email protected]>
16		*/
17		class MemoryStream implements InputOutputStream
18		{
19		use Interpolator {
20		interpolate as tinterpolate;
21		}
22
23		/**
24		* The local memory buffer
25		*
26		* @var string
27		*/
28		private $memory;
29
30		/**
31		* Current position in memory buffer
32		*
33		* @var int
34		*/
35		private $current;
36
37		/**
38		* Whether it is possible to perform reading action
39		*
40		* @var boolean
41		*/
42		private $ready;
43
44		/**
45		* Whether stream is closed
46		*
47		* @var boolean
48		*/
49		private $closed;
50
51		/**
52		* Create a new MemoryStream
53		*
54		* @param InputStream $in
55		* optional existing input stream - will be copied
56		*/
57	50	public function __construct(InputStream $in = null)
58		{
59	50	$this->memory = "";
60	50	if ($in != null) {
61	2	$copy = clone $in;
62	2	$copy->reset();
63	2	while ($copy->ready()) {
64	2	$this->memory .= $copy->read();
65		}
66	2	$copy->close();
67		}
68	50	$this->current = 0;
69	50	$this->ready = true;
70	50	$this->closed = false;
71	50	}
72
73		/**
74		*
75		* {@inheritdoc}
76		* @see \Generics\Streams\Stream::close()
77		*/
78	5	public function close()
79		{
80	5	unset($this->memory);
81	5	$this->current = 0;
82	5	$this->ready = false;
83	5	$this->closed = true;
84	5	}
85
86		/**
87		*
88		* {@inheritdoc}
89		* @see \Generics\Streams\Stream::ready()
90		*/
91	38	public function ready(): bool
92		{
93	38	return $this->ready;
94		}
95
96		/**
97		*
98		* {@inheritdoc}
99		* @see \Generics\Streams\OutputStream::write()
100		*/
101	45	public function write($buffer)
102		{
103	45	if ($this->closed) {
104	1	throw new StreamException("Stream is not open");
105		}
106	44	$this->memory .= $buffer;
107	44	$this->ready = true;
108	44	}
109
110		/**
111		*
112		* {@inheritdoc}
113		* @see \Generics\Streams\InputStream::read()
114		*/
115	41	public function read($length = 1, $offset = null): string
116		{
117	41	if ($this->closed) {
118	1	throw new StreamException("Stream is not open");
119		}
120
121	40	if ($offset !== null) {
122		$this->current = intval($offset);
123		}
124
125	40	if (strlen($this->memory) <= $this->current) {
126	21	$this->ready = false;
127	21	return "";
128		}
129
130	39	if (strlen($this->memory) - $this->current < $length) {
131	38	$length = strlen($this->memory) - $this->current;
132		}
133
134	39	$out = substr($this->memory, $this->current, $length);
135	39	$this->current += $length;
136
137	39	if ($this->current == strlen($this->memory)) {
138	39	$this->ready = false;
139		}
140
141	39	return $out;
142		}
143
144		/**
145		*
146		* {@inheritdoc}
147		* @see \Countable::count()
148		*/
149	25	public function count(): int
150		{
151	25	if ($this->closed) {
152	1	throw new StreamException("Stream is not open");
153		}
154	24	if (! isset($this->memory)) {
155		return 0;
156		}
157	24	return strlen($this->memory);
158		}
159
160		/**
161		*
162		* {@inheritdoc}
163		* @see \Generics\Resettable::reset()
164		*/
165	28	public function reset()
166		{
167	28	if ($this->closed) {
168	1	throw new StreamException("Stream is not open");
169		}
170	27	$this->current = 0;
171	27	$this->ready = true;
172	27	}
173
174		/**
175		* Write to stream by interpolation of context vars into a string
176		*
177		* @param string $string
178		* The string to interpolate, may contains placeholders in format {placeholder}.
179		* @param array $context
180		* The context array containing the associative replacers and its values.
181		*/
182	36	public function interpolate($string, array $context)
183		{
184	36	$this->write($this->tinterpolate($string, $context));
185	36	}
186
187		/**
188		*
189		* {@inheritdoc}
190		* @see \Generics\Streams\OutputStream::isWriteable()
191		*/
192	1	public function isWriteable(): bool
193		{
194	1	return true;
195		}
196
197		/**
198		*
199		* {@inheritdoc}
200		* @see \Generics\Streams\OutputStream::flush()
201		*/
202	6	public function flush()
203		{
204	6	if ($this->closed) {
205	1	throw new StreamException("Stream is not open");
206		}
207
208	5	unset($this->memory);
209	5	$this->memory = "";
210	5	$this->reset();
211	5	}
212
213		/**
214		*
215		* {@inheritdoc}
216		* @see \Generics\Streams\Stream::isOpen()
217		*/
218		public function isOpen(): bool
219		{
220		return true;
221		}
222
223		/**
224		* Retrieve the whole memory string content
225		*
226		* @return string
227		*/
228	1	public function slurp(): string
229		{
230	1	$str = "";
231	1	while ($this->ready()) {
232	1	$str .= $this->read($this->count());
233		}
234
235	1	return $str;
236		}
237		}
238

maikgreubel / phpgenerics

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MemoryStream::isOpen() A

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