MultiHash::__construct() - Code Metrics - maxwilms/bloom-filter - Measure and Improve Code Quality continuously with Scrutinizer

MultiHash::__construct() A
last analyzed 2019-11-19 11:00 UTC

↳ Parent: MultiHash

Complexity

Conditions	3
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	16
rs	9.7333
c	0
b	0
f	0
cc	3
nc	4
nop	2

<?php

namespace maxwilms\BloomFilter\Hash;

class MultiHash
{

    protected $hashOne;

    protected $hashTwo;

    protected $upperBound;

    protected $hashCount;

    public function __construct(Hash $hashOne = null, Hash $hashTwo = null)
    {
        if ($hashOne === null) {
            $hashOne = new JoaatHash();
        }

        if ($hashTwo === null) {
            $hashTwo = new FNVHash();   
        }
        
        $this->hashOne = $hashOne;
        $this->hashTwo = $hashTwo;

        $this->upperBound = 0x0ffffffff;
        $this->hashCount = 3;
    }

    public function setUpperBound($upperBound)
    {
        $this->upperBound = $upperBound;
    }

    public function setHashCount($hashCount)
    {
        $this->hashCount = $hashCount;
    }

    /**
     * hash(i) = (a + b * i ) % m
     *
     * @param $string
     * @return array
     */
    public function hash($string)
    {
        $hashes = [];

        $a = $this->hashOne->hash($string);
        $b = $this->hashTwo->hash($string);

        for ($i = 1; $i <= $this->hashCount; $i++) {
            $hashes[] = ($a + $b * $i) % $this->upperBound;
        }

        return $hashes;
    }

}


1			<?php
2
3			namespace maxwilms\BloomFilter\Hash;
4
5			class MultiHash
6			{
7
8			protected $hashOne;
9
10			protected $hashTwo;
11
12			protected $upperBound;
13
14			protected $hashCount;
15
16			public function __construct(Hash $hashOne = null, Hash $hashTwo = null)
17			{
18			if ($hashOne === null) {
19			$hashOne = new JoaatHash();
20			}
21
22			if ($hashTwo === null) {
23			$hashTwo = new FNVHash();
24			}
25
26			$this->hashOne = $hashOne;
27			$this->hashTwo = $hashTwo;
28
29			$this->upperBound = 0x0ffffffff;
30			$this->hashCount = 3;
31			}
32
33			public function setUpperBound($upperBound)
34			{
35			$this->upperBound = $upperBound;
36			}
37
38			public function setHashCount($hashCount)
39			{
40			$this->hashCount = $hashCount;
41			}
42
43			/**
44			* hash(i) = (a + b * i ) % m
45			*
46			* @param $string
47			* @return array
48			*/
49			public function hash($string)
50			{
51			$hashes = [];
52
53			$a = $this->hashOne->hash($string);
54			$b = $this->hashTwo->hash($string);
55
56			for ($i = 1; $i <= $this->hashCount; $i++) {
57			$hashes[] = ($a + $b * $i) % $this->upperBound;
58			}
59
60			return $hashes;
61			}
62
63			}
64

maxwilms / bloom-filter

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MultiHash::__construct() A last analyzed 2019-11-19 11:00 UTC

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MultiHash::__construct() A
last analyzed 2019-11-19 11:00 UTC