Writer::consolidate() - Code Metrics - Inspection of "Improve Code" - thephpleague/csv - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a3add9...6ca7fe )

by ignace nyamagana

created 2017-07-04 07:52 UTC

Writer::consolidate() A

↳ Parent: Writer

Complexity

Conditions	4
Paths	6

Size

Total Lines	20
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	12
CRAP Score	4

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	20
ccs	12
cts	12
cp	1
rs	9.2
cc	4
eloc	12
nc	6
nop	0
crap	4

<?php
/**
* This file is part of the League.csv library
*
* @license http://opensource.org/licenses/MIT
* @link https://github.com/thephpleague/csv/
* @version 9.0.0
* @package League.csv
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);

namespace League\Csv;

use League\Csv\Exception\InsertionException;
use League\Csv\Exception\OutOfRangeException;
use Traversable;
use TypeError;

/**
 * A class to manage records insertion into a CSV Document
 *
 * @package League.csv
 * @since   4.0.0
 * @author  Ignace Nyamagana Butera <[email protected]>
 *
 */
class Writer extends AbstractCsv
{
    /**
     * callable collection to format the record before insertion
     *
     * @var callable[]
     */
    protected $formatters = [];

    /**
     * callable collection to validate the record before insertion
     *
     * @var callable[]
     */
    protected $validators = [];

    /**
     * newline character
     *
     * @var string
     */
    protected $newline = "\n";

    /**
     * Insert records count for flushing
     *
     * @var int
     */
    protected $flush_counter = 0;

    /**
     * Buffer flush threshold
     *
     * @var int|null
     */
    protected $flush_threshold;

    /**
     * @inheritdoc
     */
    protected $stream_filter_mode = STREAM_FILTER_WRITE;

    /**
     * Returns the current newline sequence characters
     *
     * @return string
     */
    public function getNewline(): string
    {
        return $this->newline;
    }

    /**
     * Get the flush threshold
     *
     * @return int|null
     */
    public function getFlushThreshold()
    {
        return $this->flush_threshold;
    }

    /**
     * Adds multiple lines to the CSV document
     *
     * a simple wrapper method around insertOne
     *
     * @param Traversable|array $records a multidimensional array or a Traversable object
     *
     * @return int
     */
    public function insertAll($records): int
    {
        if (!is_iterable($records)) {
            throw new TypeError(sprintf('%s() expects argument passed to be iterable, %s given', __METHOD__, gettype($records)));
        }

        $bytes = 0;
        foreach ($records as $record) {
            $bytes += $this->insertOne($record);
        }

        $this->flush_counter = 0;
        $this->document->fflush();

        return $bytes;
    }

    /**
     * Adds a single line to a CSV document
     *
     * @param string[] $record an array
     *
     * @throws InsertionException If the record can not be inserted
     *
     * @return int
     */
    public function insertOne(array $record): int
    {
        $record = array_reduce($this->formatters, [$this, 'formatRecord'], $record);
        $this->validateRecord($record);
        $bytes = $this->document->fputcsv($record, ...$this->document->getCsvControl());
        if (!$bytes) {
            throw InsertionException::createFromStream($record);
        }

        return $bytes + $this->consolidate();
    }

    /**
     * Format the given record
     *
     * @param string[] $record
     * @param callable $formatter
     *
     * @return string[]
     */
    protected function formatRecord(array $record, callable $formatter): array
    {
        return $formatter($record);
    }

    /**
     * Validate a record
     *
     * @param string[] $record
     *
     * @throws InsertionException If the validation failed
     */
    protected function validateRecord(array $record)
    {
        foreach ($this->validators as $name => $validator) {
            if (true !== $validator($record)) {
                throw InsertionException::createFromValidator($name, $record);
            }
        }
    }

    /**
     * Apply post insertion actions
     *
     * @return int
     */
    protected function consolidate(): int
    {
        $bytes = 0;
        if ("\n" !== $this->newline) {
            $this->document->fseek(-1, SEEK_CUR);
            $bytes = $this->document->fwrite($this->newline, strlen($this->newline)) - 1;
        }

        if (null === $this->flush_threshold) {
            return $bytes;
        }

        ++$this->flush_counter;
        if (0 === $this->flush_counter % $this->flush_threshold) {
            $this->flush_counter = 0;
            $this->document->fflush();
        }

        return $bytes;
    }

    /**
     * add a formatter to the collection
     *
     * @param callable $formatter
     *
     * @return static
     */
    public function addFormatter(callable $formatter): self
    {
        $this->formatters[] = $formatter;

        return $this;
    }

    /**
     * add a Validator to the collection
     *
     * @param callable $validator
     * @param string   $validator_name the validator name
     *
     * @return static
     */
    public function addValidator(callable $validator, string $validator_name): self
    {
        $this->validators[$validator_name] = $validator;

        return $this;
    }

    /**
     * Sets the newline sequence characters
     *
     * @param string $newline
     *
     * @return static
     */
    public function setNewline(string $newline): self
    {
        $this->newline = $newline;

        return $this;
    }

    /**
     * Set the automatic flush threshold on write
     *
     * @param int|null $threshold
     *
     * @throws OutOfRangeException if the $threshold is not valid
     *
     * @return static
     */
    public function setFlushThreshold($threshold): self
    {
        if (null !== $threshold && $threshold < 1) {
            throw new OutOfRangeException(sprintf('%() expects 1 Argument to be null or a valid integer greater or equal to 1, %s given', __METHOD__, $threshold));
        }

        if ($threshold === $this->flush_threshold) {
            return $this;
        }

        $this->flush_threshold = $threshold;
        if (0 < $this->flush_counter) {
            $this->flush_counter = 0;
            $this->document->fflush();
        }

        return $this;
    }
}


1		<?php
2		/**
3		* This file is part of the League.csv library
4		*
5		* @license http://opensource.org/licenses/MIT
6		* @link https://github.com/thephpleague/csv/
7		* @version 9.0.0
8		* @package League.csv
9		*
10		* For the full copyright and license information, please view the LICENSE
11		* file that was distributed with this source code.
12		*/
13		declare(strict_types=1);
14
15		namespace League\Csv;
16
17		use League\Csv\Exception\InsertionException;
18		use League\Csv\Exception\OutOfRangeException;
19		use Traversable;
20		use TypeError;
21
22		/**
23		* A class to manage records insertion into a CSV Document
24		*
25		* @package League.csv
26		* @since 4.0.0
27		* @author Ignace Nyamagana Butera <[email protected]>
28		*
29		*/
30		class Writer extends AbstractCsv
31		{
32		/**
33		* callable collection to format the record before insertion
34		*
35		* @var callable[]
36		*/
37		protected $formatters = [];
38
39		/**
40		* callable collection to validate the record before insertion
41		*
42		* @var callable[]
43		*/
44		protected $validators = [];
45
46		/**
47		* newline character
48		*
49		* @var string
50		*/
51		protected $newline = "\n";
52
53		/**
54		* Insert records count for flushing
55		*
56		* @var int
57		*/
58		protected $flush_counter = 0;
59
60		/**
61		* Buffer flush threshold
62		*
63		* @var int\|null
64		*/
65		protected $flush_threshold;
66
67		/**
68		* @inheritdoc
69		*/
70		protected $stream_filter_mode = STREAM_FILTER_WRITE;
71
72		/**
73		* Returns the current newline sequence characters
74		*
75		* @return string
76		*/
77	2	public function getNewline(): string
78		{
79	2	return $this->newline;
80		}
81
82		/**
83		* Get the flush threshold
84		*
85		* @return int\|null
86		*/
87	2	public function getFlushThreshold()
88		{
89	2	return $this->flush_threshold;
90		}
91
92		/**
93		* Adds multiple lines to the CSV document
94		*
95		* a simple wrapper method around insertOne
96		*
97		* @param Traversable\|array $records a multidimensional array or a Traversable object
98		*
99		* @return int
100		*/
101	6	public function insertAll($records): int
102		{
103	6	if (!is_iterable($records)) {
104	2	throw new TypeError(sprintf('%s() expects argument passed to be iterable, %s given', __METHOD__, gettype($records)));
105		}
106
107	4	$bytes = 0;
108	4	foreach ($records as $record) {
109	4	$bytes += $this->insertOne($record);
110		}
111
112	4	$this->flush_counter = 0;
113	4	$this->document->fflush();
114
115	4	return $bytes;
116		}
117
118		/**
119		* Adds a single line to a CSV document
120		*
121		* @param string[] $record an array
122		*
123		* @throws InsertionException If the record can not be inserted
124		*
125		* @return int
126		*/
127	16	public function insertOne(array $record): int
128		{
129	16	$record = array_reduce($this->formatters, [$this, 'formatRecord'], $record);
130	16	$this->validateRecord($record);
131	14	$bytes = $this->document->fputcsv($record, ...$this->document->getCsvControl());
132	14	if (!$bytes) {
133	2	throw InsertionException::createFromStream($record);
134		}
135
136	12	return $bytes + $this->consolidate();
137		}
138
139		/**
140		* Format the given record
141		*
142		* @param string[] $record
143		* @param callable $formatter
144		*
145		* @return string[]
146		*/
147	2	protected function formatRecord(array $record, callable $formatter): array
148		{
149	2	return $formatter($record);
150		}
151
152		/**
153		* Validate a record
154		*
155		* @param string[] $record
156		*
157		* @throws InsertionException If the validation failed
158		*/
159	8	protected function validateRecord(array $record)
160		{
161	8	foreach ($this->validators as $name => $validator) {
162	2	if (true !== $validator($record)) {
163	2	throw InsertionException::createFromValidator($name, $record);
164		}
165		}
166	6	}
167
168		/**
169		* Apply post insertion actions
170		*
171		* @return int
172		*/
173	8	protected function consolidate(): int
174		{
175	8	$bytes = 0;
176	8	if ("\n" !== $this->newline) {
177	2	$this->document->fseek(-1, SEEK_CUR);
178	2	$bytes = $this->document->fwrite($this->newline, strlen($this->newline)) - 1;
179		}
180
181	8	if (null === $this->flush_threshold) {
182	6	return $bytes;
183		}
184
185	2	++$this->flush_counter;
186	2	if (0 === $this->flush_counter % $this->flush_threshold) {
187	2	$this->flush_counter = 0;
188	2	$this->document->fflush();
189		}
190
191	2	return $bytes;
192		}
193
194		/**
195		* add a formatter to the collection
196		*
197		* @param callable $formatter
198		*
199		* @return static
200		*/
201	2	public function addFormatter(callable $formatter): self
202		{
203	2	$this->formatters[] = $formatter;
204
205	2	return $this;
206		}
207
208		/**
209		* add a Validator to the collection
210		*
211		* @param callable $validator
212		* @param string $validator_name the validator name
213		*
214		* @return static
215		*/
216	2	public function addValidator(callable $validator, string $validator_name): self
217		{
218	2	$this->validators[$validator_name] = $validator;
219
220	2	return $this;
221		}
222
223		/**
224		* Sets the newline sequence characters
225		*
226		* @param string $newline
227		*
228		* @return static
229		*/
230	2	public function setNewline(string $newline): self
231		{
232	2	$this->newline = $newline;
233
234	2	return $this;
235		}
236
237		/**
238		* Set the automatic flush threshold on write
239		*
240		* @param int\|null $threshold
241		*
242		* @throws OutOfRangeException if the $threshold is not valid
243		*
244		* @return static
245		*/
246	4	public function setFlushThreshold($threshold): self
247		{
248	4	if (null !== $threshold && $threshold < 1) {
249	2	throw new OutOfRangeException(sprintf('%() expects 1 Argument to be null or a valid integer greater or equal to 1, %s given', __METHOD__, $threshold));
250		}
251
252	4	if ($threshold === $this->flush_threshold) {
253	2	return $this;
254		}
255
256	4	$this->flush_threshold = $threshold;
257	4	if (0 < $this->flush_counter) {
258	2	$this->flush_counter = 0;
259	2	$this->document->fflush();
260		}
261
262	4	return $this;
263		}
264		}
265

thephpleague / csv

Push — master ( a3add9...6ca7fe )

Writer::consolidate() A

Complexity

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