HeaderStrategy::derive() - Code Metrics - Inspection of "Develop" - subjective-php/csv - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#31)

by Chad

created 2018-06-09 14:23 UTC

HeaderStrategy::derive() A

↳ Parent: HeaderStrategy

Complexity

Conditions	1
Paths	1

Size

Total Lines	10
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	10
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	6
nc	1
nop	0

<?php

namespace SubjectivePHP\Csv;

use SplFileObject;

final class HeaderStrategy implements HeaderStrategyInterface
{
    /**
     * @var callable
     */
    private $getHeadersCallable;

    private function __construct(callable $getHeadersCallable)
    {
        $this->getHeadersCallable = $getHeadersCallable;
    }

    /**
     * Create header strategy which derives the headers from the first line of the file.
     *
     * @return HeaderstrategyInterface
     */
    public static function derive() : HeaderStrategyInterface
    {
        return new self(
            function (SplFileObject $fileObject) : array {
                $row = $fileObject->fgetcsv();
                $fileObject->rewind();
                return $row;
            }
        );
    }

    /**
     * Create header strategy which uses the provided headers array.
     *
     * @return HeaderstrategyInterface
     */
    public static function provide(array $headers) : HeaderStrategyInterface
    {
        return new self(
            function () use ($headers) : array {
                return $headers;
            }
        );
    }

    /**
     * Create header strategy which generates a numeric array whose size is the number of columns in the given file.
     *
     * @return HeaderstrategyInterface
     */
    public static function none() : HeaderStrategyInterface
    {
        return new self(
            function (SplFileObject $fileObject) : array {
                $firstRow = $fileObject->fgetcsv();
                $headers = array_keys($firstRow);
                $fileObject->rewind();
                return $headers;
            }
        );
    }

    /**
     * Extracts headers from the given SplFileObject.
     *
     * @param SplFileObject $fileObject The delimited file containing the headers.
     *
     * @return array
     */
    public function getHeaders(SplFileObject $fileObject) : array
    {
        return ($this->getHeadersCallable)($fileObject);
    }
}


1			<?php
2
3			namespace SubjectivePHP\Csv;
4
5			use SplFileObject;
6
7			final class HeaderStrategy implements HeaderStrategyInterface
8			{
9			/**
10			* @var callable
11			*/
12			private $getHeadersCallable;
13
14			private function __construct(callable $getHeadersCallable)
15			{
16			$this->getHeadersCallable = $getHeadersCallable;
17			}
18
19			/**
20			* Create header strategy which derives the headers from the first line of the file.
21			*
22			* @return HeaderstrategyInterface
23			*/
24			public static function derive() : HeaderStrategyInterface
25			{
26			return new self(
27			function (SplFileObject $fileObject) : array {
28			$row = $fileObject->fgetcsv();
29			$fileObject->rewind();
30			return $row;
31			}
32			);
33			}
34
35			/**
36			* Create header strategy which uses the provided headers array.
37			*
38			* @return HeaderstrategyInterface
39			*/
40			public static function provide(array $headers) : HeaderStrategyInterface
41			{
42			return new self(
43			function () use ($headers) : array {
44			return $headers;
45			}
46			);
47			}
48
49			/**
50			* Create header strategy which generates a numeric array whose size is the number of columns in the given file.
51			*
52			* @return HeaderstrategyInterface
53			*/
54			public static function none() : HeaderStrategyInterface
55			{
56			return new self(
57			function (SplFileObject $fileObject) : array {
58			$firstRow = $fileObject->fgetcsv();
59			$headers = array_keys($firstRow);
60			$fileObject->rewind();
61			return $headers;
62			}
63			);
64			}
65
66			/**
67			* Extracts headers from the given SplFileObject.
68			*
69			* @param SplFileObject $fileObject The delimited file containing the headers.
70			*
71			* @return array
72			*/
73			public function getHeaders(SplFileObject $fileObject) : array
74			{
75			return ($this->getHeadersCallable)($fileObject);
76			}
77			}
78

subjective-php / csv

Pull Request — master (#31)

HeaderStrategy::derive() A

Complexity

Size

Duplication

Importance

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