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<?php |
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namespace Cauditor; |
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/** |
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* @author Matthias Mullie <[email protected]> |
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* @copyright Copyright (c) 2016, Matthias Mullie. All rights reserved. |
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* @license LICENSE MIT |
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*/ |
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class Aggregator |
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{ |
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/** |
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* @var array |
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*/ |
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protected $metrics; |
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/** |
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* @var float[][] |
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*/ |
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protected $flat; |
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/** |
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* @param array $metrics An AnalyzerInterface::execute result |
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*/ |
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public function __construct($metrics) |
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{ |
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$this->metrics = $metrics; |
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} |
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/** |
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* Get metric averages. |
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* |
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* @return float[] |
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*/ |
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public function average() |
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{ |
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$flat = $this->flatten(); |
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$avg = array(); |
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foreach ($flat as $metric => $values) { |
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$avg[$metric] = (float) number_format(array_sum($values) / count($values), 2, '.', ''); |
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} |
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return $avg; |
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} |
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/** |
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* Get metric minima. |
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* |
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* @return float[] |
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*/ |
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public function min() |
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{ |
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$flat = $this->flatten(); |
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return array_map('min', $flat); |
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} |
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/** |
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* Get metric maxima. |
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* |
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* @return float[] |
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*/ |
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public function max() |
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{ |
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$flat = $this->flatten(); |
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return array_map('max', $flat); |
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} |
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/** |
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* Get weighed metric averages, where the bigger a method/class is, the more |
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* it's metric value will count towards the result. |
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* |
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* @return float[] |
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*/ |
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public function weigh() |
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{ |
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$flat = $this->flatten(); |
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$weighed = array(); |
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foreach ($flat as $metric => $data) { |
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$weighed[$metric] = 0; |
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$relevant = 0; |
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foreach ($data as $name => $value) { |
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$loc = isset($flat['loc'][$name]) ? $flat['loc'][$name] : 0; |
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$weighed[$metric] += $value * $loc; |
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$relevant += $loc; |
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} |
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$weighed[$metric] = $weighed[$metric] / ($relevant ?: 1); |
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} |
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return $weighed; |
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} |
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/** |
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* Flatten metrics into [metric => [value1, value1, value3]] array. |
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* |
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* @return float[][] |
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*/ |
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protected function flatten() |
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{ |
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if (!$this->flat) { |
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$this->flat = $this->recurse($this->metrics); |
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} |
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return $this->flat; |
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} |
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/** |
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* @param array $metrics |
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* |
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* @return float[][] |
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*/ |
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protected function recurse(array $metrics) |
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{ |
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$flat = array(); |
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$metrics = (array) $metrics; |
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foreach ($metrics as $metric => $value) { |
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// name & children are meta data, not metrics |
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if (!in_array($metric, array('name', 'children'))) { |
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$name = isset($metrics['name']) ? $metrics['name'] : ''; |
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$flat[$metric][$name] = $value; |
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} |
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} |
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if (isset($metrics['children'])) { |
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foreach ($metrics['children'] as $child) { |
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$childTotals = $this->recurse($child); |
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$flat = array_merge_recursive($flat, $childTotals); |
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} |
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} |
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foreach ($flat as $metric => $data) { |
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// array_merge_recursive will merge into an array of values if there |
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// are multiple things with the same name, in which case we'll just |
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// go with the last occurrence |
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$flat[$metric] = array_map(function ($value) { |
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return is_array($value) ? array_pop($value) : $value; |
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}, $flat[$metric]); |
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} |
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return $flat; |
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} |
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} |
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cauditor /
php-analyzer
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.