Writer::setFlushThreshold() - Code Metrics - Inspection of "Implementing 9.0 Public API" - thephpleague/csv - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#210)

by ignace nyamagana

created 2017-02-06 12:23 UTC

Writer::setFlushThreshold() A

↳ Parent: Writer

Complexity

Conditions	2
Paths	2

Size

Total Lines	13
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	13
ccs	7
cts	7
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	8
nc	2
nop	1
crap	2

<?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 Traversable;

/**
 *  A class to manage data insertion into a CSV
 *
 * @package League.csv
 * @since  4.0.0
 *
 */
class Writer extends AbstractCsv
{
    /**
     * Callables to validate the record before insertion
     *
     * @var callable[]
     */
    protected $validators = [];

    /**
     * Callables to format the record before insertion
     *
     * @var callable[]
     */
    protected $formatters = [];

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

    /**
     * Insert Rows count
     *
     * @var int
     */
    protected $insert_count = 0;

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

    /**
     * Buffer flush threshold
     *
     * @var int
     */
    protected $flush_threshold = 500;

    /**
     * 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;
    }

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

        return $this;
    }

    /**
     * Set the automatic flush threshold on write
     *
     * @param int|null $threshold
     */
    public function setFlushThreshold($threshold): self
    {
        if (null !== $threshold) {
            $threshold = $this->filterInteger(
                $threshold,
                0,
                'The flush threshold must be a valid positive integer or 0'
            );
        }
        $this->flush_threshold = $threshold;

        return $this;
    }

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

        return $this;
    }

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

        return $this;
    }

    /**
     * Adds multiple lines to the CSV document
     *
     * a simple wrapper method around insertOne
     *
     * @param Traversable|array $rows a multidimensional array or a Traversable object
     *
     * @throws Exception If the given rows format is invalid
     *
     * @return static
     */
    public function insertAll($rows): self
    {
        if (!is_array($rows) && !$rows instanceof Traversable) {
            throw new Exception('the provided data must be an array OR a `Traversable` object');
        }

        foreach ($rows as $row) {
            $this->insertOne($row);
        }

        return $this;
    }

    /**
     * Adds a single line to a CSV document
     *
     * @param string[] $row an array
     *
     * @return static
     */
    public function insertOne(array $row): self
    {
        $record = array_reduce($this->formatters, [$this, 'formatRecord'], $row);
        $this->validateRecord($record);
        $this->document->fputcsv($record, $this->delimiter, $this->enclosure, $this->escape);
        if ("\n" !== $this->newline) {
            $this->document->fseek(-1, SEEK_CUR);
            $this->document->fwrite($this->newline, strlen($this->newline));
        }

        $this->insert_count++;
        if (null !== $this->flush_threshold && 0 === $this->insert_count % $this->flush_threshold) {
            $this->document->fflush();
        }

        return $this;
    }

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

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


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 Traversable;
18
19		/**
20		* A class to manage data insertion into a CSV
21		*
22		* @package League.csv
23		* @since 4.0.0
24		*
25		*/
26		class Writer extends AbstractCsv
27		{
28		/**
29		* Callables to validate the record before insertion
30		*
31		* @var callable[]
32		*/
33		protected $validators = [];
34
35		/**
36		* Callables to format the record before insertion
37		*
38		* @var callable[]
39		*/
40		protected $formatters = [];
41
42		/**
43		* @inheritdoc
44		*/
45		protected $stream_filter_mode = STREAM_FILTER_WRITE;
46
47		/**
48		* Insert Rows count
49		*
50		* @var int
51		*/
52		protected $insert_count = 0;
53
54		/**
55		* newline character
56		*
57		* @var string
58		*/
59		protected $newline = "\n";
60
61		/**
62		* Buffer flush threshold
63		*
64		* @var int
65		*/
66		protected $flush_threshold = 500;
67
68		/**
69		* Returns the current newline sequence characters
70		*
71		* @return string
72		*/
73	4	public function getNewline(): string
74		{
75	4	return $this->newline;
76		}
77
78		/**
79		* Get the flush threshold
80		*
81		* @return int\|null
82		*/
83	2	public function getFlushThreshold()
84		{
85	2	return $this->flush_threshold;
86		}
87
88		/**
89		* Sets the newline sequence characters
90		*
91		* @param string $newline
92		*
93		* @return static
94		*/
95	4	public function setNewline(string $newline): self
96		{
97	4	$this->newline = (string) $newline;
98
99	4	return $this;
100		}
101
102		/**
103		* Set the automatic flush threshold on write
104		*
105		* @param int\|null $threshold
106		*/
107	4	public function setFlushThreshold($threshold): self
108		{
109	4	if (null !== $threshold) {
110	4	$threshold = $this->filterInteger(
111		$threshold,
112	4	0,
113	4	'The flush threshold must be a valid positive integer or 0'
114		);
115		}
116	4	$this->flush_threshold = $threshold;
117
118	4	return $this;
119		}
120
121		/**
122		* add a formatter to the collection
123		*
124		* @param callable $callable
125		*
126		* @return static
127		*/
128	4	public function addFormatter(callable $callable): self
129		{
130	4	$this->formatters[] = $callable;
131
132	4	return $this;
133		}
134
135		/**
136		* add a Validator to the collection
137		*
138		* @param callable $callable
139		* @param string $name the rule name
140		*
141		* @return static
142		*/
143	8	public function addValidator(callable $callable, string $name): self
144		{
145	8	$this->validators[$name] = $callable;
146
147	8	return $this;
148		}
149
150		/**
151		* Adds multiple lines to the CSV document
152		*
153		* a simple wrapper method around insertOne
154		*
155		* @param Traversable\|array $rows a multidimensional array or a Traversable object
156		*
157		* @throws Exception If the given rows format is invalid
158		*
159		* @return static
160		*/
161	6	public function insertAll($rows): self
162		{
163	6	if (!is_array($rows) && !$rows instanceof Traversable) {
164	2	throw new Exception('the provided data must be an array OR a `Traversable` object');
165		}
166
167	4	foreach ($rows as $row) {
168	4	$this->insertOne($row);
169		}
170
171	4	return $this;
172		}
173
174		/**
175		* Adds a single line to a CSV document
176		*
177		* @param string[] $row an array
178		*
179		* @return static
180		*/
181	30	public function insertOne(array $row): self
182		{
183	30	$record = array_reduce($this->formatters, [$this, 'formatRecord'], $row);
184	30	$this->validateRecord($record);
185	26	$this->document->fputcsv($record, $this->delimiter, $this->enclosure, $this->escape);
186	26	if ("\n" !== $this->newline) {
187	4	$this->document->fseek(-1, SEEK_CUR);
188	4	$this->document->fwrite($this->newline, strlen($this->newline));
189		}
190
191	26	$this->insert_count++;
192	26	if (null !== $this->flush_threshold && 0 === $this->insert_count % $this->flush_threshold) {
193	2	$this->document->fflush();
194		}
195
196	26	return $this;
197		}
198
199		/**
200		* Format the given row
201		*
202		* @param string[] $row
203		* @param callable $formatter
204		*
205		* @return string[]
206		*/
207	4	protected function formatRecord(array $row, callable $formatter): array
208		{
209	4	return $formatter($row);
210		}
211
212		/**
213		* Validate a row
214		*
215		* @param string[] $row
216		*
217		* @throws InvalidRowException If the validation failed
218		*/
219	30	protected function validateRecord(array $row)
220		{
221	30	foreach ($this->validators as $name => $validator) {
222	8	if (true !== $validator($row)) {
223	8	throw new InvalidRowException($name, $row, 'row validation failed');
224		}
225		}
226	26	}
227		}
228

thephpleague / csv

Pull Request — master (#210)

Writer::setFlushThreshold() A

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