|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace drupol\phpartition; |
|
4
|
|
|
|
|
5
|
|
|
use phootwork\collection\Map; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Class Partition. |
|
9
|
|
|
* |
|
10
|
|
|
* @package drupol\phpartition |
|
11
|
|
|
*/ |
|
12
|
|
|
class Partition extends Map |
|
13
|
|
|
{ |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* The algorithm in use. |
|
17
|
|
|
* |
|
18
|
|
|
* @var PartitionAlgorithmInterface |
|
19
|
|
|
*/ |
|
20
|
|
|
protected $algo; |
|
21
|
|
|
|
|
22
|
|
|
/** |
|
23
|
|
|
* Partition constructor. |
|
24
|
|
|
* |
|
25
|
|
|
* @param PartitionItem[] $elements |
|
26
|
|
|
* The list of elements. |
|
27
|
|
|
*/ |
|
28
|
14 |
|
public function __construct(array $elements = array()) |
|
29
|
|
|
{ |
|
30
|
14 |
|
parent::__construct(array()); |
|
31
|
14 |
|
$this->addItems($elements); |
|
32
|
14 |
|
} |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* Add an item to the partition. |
|
36
|
|
|
* |
|
37
|
|
|
* @param PartitionItem $item |
|
38
|
|
|
* The item to add to the partition. |
|
39
|
|
|
* |
|
40
|
|
|
* @return $this |
|
41
|
|
|
* Return itself. |
|
42
|
|
|
*/ |
|
43
|
14 |
|
public function addItem(PartitionItem $item) |
|
44
|
|
|
{ |
|
45
|
14 |
|
$this->set(spl_object_hash($item), $item); |
|
46
|
|
|
|
|
47
|
14 |
|
return $this; |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Add items to the partition. |
|
52
|
|
|
* |
|
53
|
|
|
* @param PartitionItem[] $items |
|
54
|
|
|
* The items to add to the partition. |
|
55
|
|
|
* |
|
56
|
|
|
* @return $this |
|
57
|
|
|
* Return itself. |
|
58
|
|
|
*/ |
|
59
|
14 |
|
public function addItems(array $items = array()) |
|
60
|
|
|
{ |
|
61
|
14 |
|
foreach ($items as $item) { |
|
62
|
14 |
|
$this->addItem($item); |
|
63
|
14 |
|
} |
|
64
|
|
|
|
|
65
|
14 |
|
return $this; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* Get an array of original items. |
|
70
|
|
|
* |
|
71
|
|
|
* @return array |
|
72
|
|
|
* The original items. |
|
73
|
|
|
*/ |
|
74
|
14 |
|
public function getRawItems() |
|
75
|
|
|
{ |
|
76
|
14 |
|
return array_values( |
|
77
|
|
|
array_map(function ($item) { |
|
78
|
14 |
|
return $item->getItem(); |
|
79
|
14 |
|
}, $this->toArray()) |
|
80
|
14 |
|
); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* Get the weight of the partition. |
|
85
|
|
|
* |
|
86
|
|
|
* @return int |
|
87
|
|
|
* The partition's weight. |
|
88
|
|
|
*/ |
|
89
|
11 |
|
public function getWeight() |
|
90
|
|
|
{ |
|
91
|
|
|
return array_reduce($this->toArray(), function ($sum, $item) { |
|
92
|
11 |
|
$sum += $item->getValue(); |
|
93
|
11 |
|
return $sum; |
|
94
|
11 |
|
}); |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
/** |
|
98
|
|
|
* Set the algorithm to use. |
|
99
|
|
|
* |
|
100
|
|
|
* @param BasePartitionAlgorithm $algo |
|
101
|
|
|
* The algorithm to use. |
|
102
|
|
|
*/ |
|
103
|
14 |
|
public function setAlgo(BasePartitionAlgorithm $algo) |
|
104
|
|
|
{ |
|
105
|
14 |
|
$this->algo = $algo; |
|
106
|
14 |
|
} |
|
107
|
|
|
|
|
108
|
|
|
/** |
|
109
|
|
|
* Get the algorithm in use. |
|
110
|
|
|
* |
|
111
|
|
|
* @return PartitionAlgorithmInterface |
|
112
|
|
|
* The algorithm in use. |
|
113
|
|
|
*/ |
|
114
|
14 |
|
public function getAlgo() |
|
115
|
|
|
{ |
|
116
|
14 |
|
return $this->algo; |
|
117
|
|
|
} |
|
118
|
|
|
|
|
119
|
|
|
/** |
|
120
|
|
|
* Delete items from the partition. |
|
121
|
|
|
* |
|
122
|
|
|
* @param PartitionItem[] $items |
|
123
|
|
|
* The items to delete. |
|
124
|
|
|
*/ |
|
125
|
3 |
|
public function deleteItems(array $items = array()) |
|
126
|
|
|
{ |
|
127
|
3 |
|
foreach ($items as $item) { |
|
128
|
3 |
|
$this->delete($item); |
|
129
|
3 |
|
} |
|
130
|
3 |
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* Delete an item from the partition. |
|
134
|
|
|
* |
|
135
|
|
|
* @param PartitionItem $item |
|
136
|
|
|
* The item to delete. |
|
137
|
|
|
*/ |
|
138
|
3 |
|
public function delete(PartitionItem $item) |
|
139
|
|
|
{ |
|
140
|
3 |
|
$this->remove(spl_object_hash($item)); |
|
141
|
3 |
|
} |
|
142
|
|
|
|
|
143
|
|
|
/** |
|
144
|
|
|
* Sort the items of the partition in a particular order. |
|
145
|
|
|
* |
|
146
|
|
|
* @param string $order |
|
147
|
|
|
* ASC for ascending, DESC for descending. |
|
148
|
|
|
* |
|
149
|
|
|
* @return $this |
|
150
|
|
|
*/ |
|
151
|
11 |
|
public function sortByValue($order = 'ASC') |
|
152
|
|
|
{ |
|
153
|
11 |
|
if ('ASC' == $order) { |
|
154
|
|
|
$this->sort(function ($itemA, $itemB) { |
|
155
|
8 |
|
return $itemA->getValue() > $itemB->getValue(); |
|
156
|
8 |
|
}); |
|
157
|
8 |
|
} |
|
158
|
|
|
|
|
159
|
11 |
|
if ('DESC' == $order) { |
|
160
|
3 |
|
$this->sort(function ($itemA, $itemB) { |
|
161
|
3 |
|
return $itemA->getValue() < $itemB->getValue(); |
|
162
|
3 |
|
}); |
|
163
|
3 |
|
} |
|
164
|
|
|
|
|
165
|
11 |
|
return $this; |
|
166
|
|
|
} |
|
167
|
|
|
} |
|
168
|
|
|
|
drupol /
phpartition
