AbstractReader::isSupportedStreamWrapper() - Code Metrics - Inspection of "Option to return formatted dates instead of PHP ob..." - box/spout - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a6a6b1...104cd9 )

by Adrien

created 2016-05-20 23:08 UTC

AbstractReader::isSupportedStreamWrapper() A

↳ Parent: AbstractReader

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	7
rs	9.4285
ccs	5
cts	5
cp	1
cc	2
eloc	5
nc	2
nop	1
crap	2

<?php

namespace Box\Spout\Reader;

use Box\Spout\Common\Exception\IOException;
use Box\Spout\Reader\Exception\ReaderNotOpenedException;

/**
 * Class AbstractReader
 *
 * @package Box\Spout\Reader
 * @abstract
 */
abstract class AbstractReader implements ReaderInterface
{
    /** @var bool Indicates whether the stream is currently open */
    protected $isStreamOpened = false;

    /** @var \Box\Spout\Common\Helper\GlobalFunctionsHelper Helper to work with global functions */
    protected $globalFunctionsHelper;

    /** @var bool Whether date/time values should be returned as PHP objects or be formatted as strings */
    protected $shouldFormatDates = false;

    /**
     * Returns whether stream wrappers are supported
     *
     * @return bool
     */
    abstract protected function doesSupportStreamWrapper();

    /**
     * Opens the file at the given file path to make it ready to be read
     *
     * @param  string $filePath Path of the file to be read
     * @return void
     */
    abstract protected function openReader($filePath);

    /**
     * Returns an iterator to iterate over sheets.
     *
     * @return \Iterator To iterate over sheets
     */
    abstract public function getConcreteSheetIterator();

    /**
     * Closes the reader. To be used after reading the file.
     *
     * @return AbstractReader
     */
    abstract protected function closeReader();

    /**
     * @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
     * @return AbstractReader
     */
    public function setGlobalFunctionsHelper($globalFunctionsHelper)
    {
        $this->globalFunctionsHelper = $globalFunctionsHelper;
        return $this;
    }

    /**
     * Sets whether date/time values should be returned as PHP objects or be formatted as strings.
     *
     * @param bool $shouldFormatDates
     * @return AbstractReader
     */
    public function setShouldFormatDates($shouldFormatDates)
    {
        $this->shouldFormatDates = $shouldFormatDates;
        return $this;
    }

    /**
     * Prepares the reader to read the given file. It also makes sure
     * that the file exists and is readable.
     *
     * @api
     * @param  string $filePath Path of the file to be read
     * @return void
     * @throws \Box\Spout\Common\Exception\IOException If the file at the given path does not exist, is not readable or is corrupted
     */
    public function open($filePath)
    {
        if ($this->isStreamWrapper($filePath) && (!$this->doesSupportStreamWrapper() || !$this->isSupportedStreamWrapper($filePath))) {
            throw new IOException("Could not open $filePath for reading! Stream wrapper used is not supported for this type of file.");
        }

        if (!$this->isPhpStream($filePath)) {
            // we skip the checks if the provided file path points to a PHP stream
            if (!$this->globalFunctionsHelper->file_exists($filePath)) {
                throw new IOException("Could not open $filePath for reading! File does not exist.");
            } else if (!$this->globalFunctionsHelper->is_readable($filePath)) {
                throw new IOException("Could not open $filePath for reading! File is not readable.");
            }
        }

        try {
            $fileRealPath = $this->getFileRealPath($filePath);
            $this->openReader($fileRealPath);
            $this->isStreamOpened = true;
        } catch (\Exception $exception) {
            throw new IOException("Could not open $filePath for reading! ({$exception->getMessage()})");
        }
    }

    /**
     * Returns the real path of the given path.
     * If the given path is a valid stream wrapper, returns the path unchanged.
     *
     * @param string $filePath
     * @return string
     */
    protected function getFileRealPath($filePath)
    {
        if ($this->isSupportedStreamWrapper($filePath)) {
            return $filePath;
        }

        // Need to use realpath to fix "Can't open file" on some Windows setup
        return realpath($filePath);
    }

    /**
     * Returns the scheme of the custom stream wrapper, if the path indicates a stream wrapper is used.
     * For example, php://temp => php, s3://path/to/file => s3...
     *
     * @param string $filePath Path of the file to be read
     * @return string|null The stream wrapper scheme or NULL if not a stream wrapper
     */
    protected function getStreamWrapperScheme($filePath)
    {
        $streamScheme = null;
        if (preg_match('/^(\w+):\/\//', $filePath, $matches)) {
            $streamScheme = $matches[1];
        }
        return $streamScheme;
    }

    /**
     * Checks if the given path is an unsupported stream wrapper
     * (like local path, php://temp, mystream://foo/bar...).
     *
     * @param string $filePath Path of the file to be read
     * @return bool Whether the given path is an unsupported stream wrapper
     */
    protected function isStreamWrapper($filePath)
    {
        return ($this->getStreamWrapperScheme($filePath) !== null);
    }

    /**
     * Checks if the given path is an supported stream wrapper
     * (like php://temp, mystream://foo/bar...).
     * If the given path is a local path, returns true.
     *
     * @param string $filePath Path of the file to be read
     * @return bool Whether the given path is an supported stream wrapper
     */
    protected function isSupportedStreamWrapper($filePath)
    {
        $streamScheme = $this->getStreamWrapperScheme($filePath);
        return ($streamScheme !== null) ?
            in_array($streamScheme, $this->globalFunctionsHelper->stream_get_wrappers()) :
            true;
    }

    /**
     * Checks if a path is a PHP stream (like php://output, php://memory, ...)
     *
     * @param string $filePath Path of the file to be read
     * @return bool Whether the given path maps to a PHP stream
     */
    protected function isPhpStream($filePath)
    {
        $streamScheme = $this->getStreamWrapperScheme($filePath);
        return ($streamScheme === 'php');
    }

    /**
     * Returns an iterator to iterate over sheets.
     *
     * @api
     * @return \Iterator To iterate over sheets
     * @throws \Box\Spout\Reader\Exception\ReaderNotOpenedException If called before opening the reader
     */
    public function getSheetIterator()
    {
        if (!$this->isStreamOpened) {
            throw new ReaderNotOpenedException('Reader should be opened first.');
        }

        return $this->getConcreteSheetIterator();
    }

    /**
     * Closes the reader, preventing any additional reading
     *
     * @api
     * @return void
     */
    public function close()
    {
        if ($this->isStreamOpened) {
            $this->closeReader();

            $sheetIterator = $this->getConcreteSheetIterator();
            if ($sheetIterator) {
                $sheetIterator->end();
            }

            $this->isStreamOpened = false;
        }
    }
}


1		<?php
2
3		namespace Box\Spout\Reader;
4
5		use Box\Spout\Common\Exception\IOException;
6		use Box\Spout\Reader\Exception\ReaderNotOpenedException;
7
8		/**
9		* Class AbstractReader
10		*
11		* @package Box\Spout\Reader
12		* @abstract
13		*/
14		abstract class AbstractReader implements ReaderInterface
15		{
16		/** @var bool Indicates whether the stream is currently open */
17		protected $isStreamOpened = false;
18
19		/** @var \Box\Spout\Common\Helper\GlobalFunctionsHelper Helper to work with global functions */
20		protected $globalFunctionsHelper;
21
22		/** @var bool Whether date/time values should be returned as PHP objects or be formatted as strings */
23		protected $shouldFormatDates = false;
24
25		/**
26		* Returns whether stream wrappers are supported
27		*
28		* @return bool
29		*/
30		abstract protected function doesSupportStreamWrapper();
31
32		/**
33		* Opens the file at the given file path to make it ready to be read
34		*
35		* @param string $filePath Path of the file to be read
36		* @return void
37		*/
38		abstract protected function openReader($filePath);
39
40		/**
41		* Returns an iterator to iterate over sheets.
42		*
43		* @return \Iterator To iterate over sheets
44		*/
45		abstract public function getConcreteSheetIterator();
46
47		/**
48		* Closes the reader. To be used after reading the file.
49		*
50		* @return AbstractReader
51		*/
52		abstract protected function closeReader();
53
54		/**
55		* @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
56		* @return AbstractReader
57		*/
58	279	public function setGlobalFunctionsHelper($globalFunctionsHelper)
59		{
60	279	$this->globalFunctionsHelper = $globalFunctionsHelper;
61	279	return $this;
62		}
63
64		/**
65		* Sets whether date/time values should be returned as PHP objects or be formatted as strings.
66		*
67		* @param bool $shouldFormatDates
68		* @return AbstractReader
69		*/
70	159	public function setShouldFormatDates($shouldFormatDates)
71		{
72	159	$this->shouldFormatDates = $shouldFormatDates;
73	159	return $this;
74		}
75
76		/**
77		* Prepares the reader to read the given file. It also makes sure
78		* that the file exists and is readable.
79		*
80		* @api
81		* @param string $filePath Path of the file to be read
82		* @return void
83		* @throws \Box\Spout\Common\Exception\IOException If the file at the given path does not exist, is not readable or is corrupted
84		*/
85	276	public function open($filePath)
86		{
87	276	if ($this->isStreamWrapper($filePath) && (!$this->doesSupportStreamWrapper() \|\| !$this->isSupportedStreamWrapper($filePath))) {
88	15	throw new IOException("Could not open $filePath for reading! Stream wrapper used is not supported for this type of file.");
89		}
90
91	261	if (!$this->isPhpStream($filePath)) {
92		// we skip the checks if the provided file path points to a PHP stream
93	261	if (!$this->globalFunctionsHelper->file_exists($filePath)) {
94	9	throw new IOException("Could not open $filePath for reading! File does not exist.");
95	252	} else if (!$this->globalFunctionsHelper->is_readable($filePath)) {
96	3	throw new IOException("Could not open $filePath for reading! File is not readable.");
97		}
98	249	}
99
100		try {
101	249	$fileRealPath = $this->getFileRealPath($filePath);
102	249	$this->openReader($fileRealPath);
103	234	$this->isStreamOpened = true;
104	249	} catch (\Exception $exception) {
105	15	throw new IOException("Could not open $filePath for reading! ({$exception->getMessage()})");
106		}
107	234	}
108
109		/**
110		* Returns the real path of the given path.
111		* If the given path is a valid stream wrapper, returns the path unchanged.
112		*
113		* @param string $filePath
114		* @return string
115		*/
116	249	protected function getFileRealPath($filePath)
117		{
118	249	if ($this->isSupportedStreamWrapper($filePath)) {
119	249	return $filePath;
120		}
121
122		// Need to use realpath to fix "Can't open file" on some Windows setup
123		return realpath($filePath);
124		}
125
126		/**
127		* Returns the scheme of the custom stream wrapper, if the path indicates a stream wrapper is used.
128		* For example, php://temp => php, s3://path/to/file => s3...
129		*
130		* @param string $filePath Path of the file to be read
131		* @return string\|null The stream wrapper scheme or NULL if not a stream wrapper
132		*/
133	276	protected function getStreamWrapperScheme($filePath)
134		{
135	276	$streamScheme = null;
136	276	if (preg_match('/^(\w+):\/\//', $filePath, $matches)) {
137	18	$streamScheme = $matches[1];
138	18	}
139	276	return $streamScheme;
140		}
141
142		/**
143		* Checks if the given path is an unsupported stream wrapper
144		* (like local path, php://temp, mystream://foo/bar...).
145		*
146		* @param string $filePath Path of the file to be read
147		* @return bool Whether the given path is an unsupported stream wrapper
148		*/
149	276	protected function isStreamWrapper($filePath)
150		{
151	276	return ($this->getStreamWrapperScheme($filePath) !== null);
152		}
153
154		/**
155		* Checks if the given path is an supported stream wrapper
156		* (like php://temp, mystream://foo/bar...).
157		* If the given path is a local path, returns true.
158		*
159		* @param string $filePath Path of the file to be read
160		* @return bool Whether the given path is an supported stream wrapper
161		*/
162	252	protected function isSupportedStreamWrapper($filePath)
163		{
164	252	$streamScheme = $this->getStreamWrapperScheme($filePath);
165	252	return ($streamScheme !== null) ?
166	252	in_array($streamScheme, $this->globalFunctionsHelper->stream_get_wrappers()) :
167	252	true;
168		}
169
170		/**
171		* Checks if a path is a PHP stream (like php://output, php://memory, ...)
172		*
173		* @param string $filePath Path of the file to be read
174		* @return bool Whether the given path maps to a PHP stream
175		*/
176	261	protected function isPhpStream($filePath)
177		{
178	261	$streamScheme = $this->getStreamWrapperScheme($filePath);
179	261	return ($streamScheme === 'php');
180		}
181
182		/**
183		* Returns an iterator to iterate over sheets.
184		*
185		* @api
186		* @return \Iterator To iterate over sheets
187		* @throws \Box\Spout\Reader\Exception\ReaderNotOpenedException If called before opening the reader
188		*/
189	237	public function getSheetIterator()
190		{
191	237	if (!$this->isStreamOpened) {
192	3	throw new ReaderNotOpenedException('Reader should be opened first.');
193		}
194
195	234	return $this->getConcreteSheetIterator();
196		}
197
198		/**
199		* Closes the reader, preventing any additional reading
200		*
201		* @api
202		* @return void
203		*/
204	222	public function close()
205		{
206	222	if ($this->isStreamOpened) {
207	222	$this->closeReader();
208
209	222	$sheetIterator = $this->getConcreteSheetIterator();
210	222	if ($sheetIterator) {
211	222	$sheetIterator->end();
212	222	}
213
214	222	$this->isStreamOpened = false;
215	222	}
216	222	}
217		}
218

box / spout

Push — master ( a6a6b1...104cd9 )

AbstractReader::isSupportedStreamWrapper() A

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