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<?php
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/**
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* @author Aleksandar Panic
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* @license http://www.apache.org/licenses/LICENSE-2.0
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* @since 1.0.0
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**/
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namespace ArekX\ArrayExpression\ValueParsers;
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use ArekX\ArrayExpression\Exceptions\InvalidValueTypeException;
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/**
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* Class ArrayValueParser
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* Array value parser which parses arrays by specified keys.
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*
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* @package ArekX\ArrayExpression\ValueParsers
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*
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*/
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class ArrayValueParser extends BaseValueParser
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{
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protected $valueCache = [];
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/**
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* Sets raw array value to be parsed.
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*
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* @param mixed $rawValue Array value to be parsed
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* @throws InvalidValueTypeException Error which is thrown if raw value is not an array.
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*/
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public function setRaw($rawValue)
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{
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if (!is_array($rawValue)) {
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throw new InvalidValueTypeException($rawValue);
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}
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$this->valueCache = [];
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parent::setRaw($rawValue);
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}
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/**
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* Returns parsed value by specified by $requested name.
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*
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* If a $requestedName is an empty string whole raw value is returned.
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* If a $requestedName is a string in dot notation then array will be traversed to find value from those keys.
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*
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* @param string $requestedName Requested key to be returned
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* @param mixed $default Default value to be returned if nothing is found.
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* @return mixed
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*/
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public function getValue($requestedName = '', $default = null)
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{
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if ($requestedName === '') {
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return $this->raw;
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}
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if (array_key_exists($requestedName, $this->valueCache)) {
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return $this->valueCache[$requestedName];
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}
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if (is_array($this->raw) && array_key_exists($requestedName, $this->raw)) {
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return $this->raw[$requestedName];
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}
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$parts = explode('.', $requestedName);
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$walker = $this->raw;
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$lastPart = array_pop($parts);
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foreach ($parts as $part) {
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if (is_array($walker) && array_key_exists($part, $walker)) {
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$walker = $walker[$part];
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continue;
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}
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return $this->valueCache[$requestedName] = $default;
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}
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if (is_array($walker) && array_key_exists($lastPart, $walker)) {
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return $this->valueCache[$requestedName] = $walker[$lastPart];
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}
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return $this->valueCache[$requestedName] = $default;
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}
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} |
ArekX /
array-expression-engine
