Completed
Push — master ( 9e1617...cfcc0d )
by Ma
02:15
created

ConfigJson::__construct()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 8
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 8
rs 9.4285
cc 2
eloc 4
nc 2
nop 2
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<?php
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namespace Monitor\Config;
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class ConfigJson implements ConfigInterface
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{
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    private $data;
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    public function __construct($filename = null, array $configValues = [])
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    {
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        $this->data = $configValues;
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        if ($filename) {
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            $this->loadFromFile($filename);
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        }
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    }
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    private function loadFromFile($filename)
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    {
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        $fullPath = $this->getFullPath($filename);
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        $this->isFileReadable($fullPath);
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        $configData = file_get_contents($fullPath);
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        $this->data = $this->decode($configData);
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    }
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    public function get($name, $default = null)
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    {
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        if (isset($this->data[$name])
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          || $default) {
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            return isset($this->data[$name]) ? $this->data[$name] : $default;
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        }
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        throw new \Exception($name.' not found in Config');
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    }
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    private function getFullPath($filename)
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    {
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        $fullPath = __DIR__.'/../'.$filename;
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        return $fullPath;
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    }
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    /**
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     * Decode json string to array
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     *
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     * @param  $data
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     * @return array $decodedData
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     */
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    private function decode($data)
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    {
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        $decodedData = json_decode($data, true);
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        if (json_last_error() !== JSON_ERROR_NONE) {
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            throw new \Exception('Can\'t parse config');
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        }
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        return (array) $decodedData;
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    }
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    /**
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     *
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     * @param fullPath
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     */
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    private function isFileReadable($fullPath)
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    {
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        if (! is_readable($fullPath)) {
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            throw new \Exception('config is not readable');
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        }
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    }
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}
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