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<?php |
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/* |
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* Copyright (c) 2011-2015, Celestino Diaz <[email protected]> |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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namespace Brickoo\Component\Common; |
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use InvalidArgumentException; |
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/** |
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* Assert |
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* |
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* Assert the type of an argument value or values. |
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* @author Celestino Diaz <[email protected]> |
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*/ |
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class Assert { |
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/** @var boolean */ |
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public static $throwExceptions = true; |
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/** |
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* Check if the argument is a string and not empty, accepts empty strings. |
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* @param string $argument the arguments to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isString($argument) { |
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return self::handleArgumentValidation(is_string($argument), |
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$argument, "The argument must be of type string." |
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); |
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} |
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/** |
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* Check if the argument is an integer. |
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* @param integer $argument the argument to check |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isInteger($argument) { |
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return self::handleArgumentValidation(is_int($argument), |
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$argument, "The argument must be of type integer." |
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); |
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} |
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/** |
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* Check if the argument is a string or a integer, accepts empty values. |
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* @param string $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isStringOrInteger($argument) { |
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return self::handleArgumentValidation( |
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(is_string($argument) || is_int($argument)), |
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$argument, "The argument must be of type integer or string." |
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); |
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} |
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/** |
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* Check if the arguments is a float. |
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* @param float $argument the argument to check |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isFloat($argument) { |
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return self::handleArgumentValidation(is_float($argument), |
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$argument, "The argument must be of type float." |
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); |
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} |
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/** |
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* Check if the argument is a boolean. |
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* @param boolean $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isBoolean($argument) { |
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return self::handleArgumentValidation(is_bool($argument), |
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$argument, "The argument must be of type boolean." |
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); |
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} |
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/** |
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* Check if the argument is not empty. |
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* @param mixed $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isNotEmpty($argument) { |
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return self::handleArgumentValidation((!empty($argument)), |
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$argument, "The argument must not be empty." |
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); |
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} |
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/** |
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* Check if a function is available by its name. |
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* @param string $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isFunctionAvailable($argument) { |
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return self::handleArgumentValidation(function_exists($argument), |
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$argument, "The argument must be an available function." |
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); |
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} |
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/** |
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* Check if the argument is traversable. |
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* @param \Traversable|array $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isTraversable($argument) { |
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return self::handleArgumentValidation( |
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(is_array($argument) || ($argument instanceof \Traversable)), |
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$argument, "The argument must be traversable." |
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); |
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} |
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/** |
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* Check if the argument is callable. |
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* @param callable $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isCallable($argument) { |
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return self::handleArgumentValidation(is_callable($argument), |
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$argument, "The argument must be callable." |
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); |
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} |
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/** |
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* Check if the argument is an object. |
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* @param object $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isObject($argument) { |
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return self::handleArgumentValidation(is_object($argument), |
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$argument, "The argument must be an object." |
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); |
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} |
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/** |
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* Check if the argument is a resource. |
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* @param resource $argument the argument to validate |
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* @throws \InvalidArgumentException if the validation fails |
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* @return boolean check result |
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*/ |
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public static function isResource($argument) { |
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return self::handleArgumentValidation(is_resource($argument), |
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$argument, "The argument must be a resource." |
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); |
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} |
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/** |
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* Handle an invalid argument. |
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* @param boolean $validationSuccess |
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* @param mixed $argument |
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* @param string $errorMessage |
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* @throws \InvalidArgumentException |
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* @return boolean false if exception is turned off |
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*/ |
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public static function handleArgumentValidation($validationSuccess, $argument, $errorMessage) { |
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if ($validationSuccess) { |
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return true; |
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} |
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if (self::$throwExceptions) { |
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throw self::getInvalidArgumentException($argument, $errorMessage); |
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} |
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trigger_error(self::getErrorMessage($argument, $errorMessage), E_USER_WARNING); |
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return false; |
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} |
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/** |
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* Throw an \InvalidArgumentException describing the argument and adding a helpful error message. |
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* @param mixed $argument the arguments which are invalid |
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* @param string $errorMessage the error message to attach |
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* @return \InvalidArgumentException |
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*/ |
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public static function getInvalidArgumentException($argument, $errorMessage) { |
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return new InvalidArgumentException(self::getErrorMessage($argument, $errorMessage)); |
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} |
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/** |
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* Return the formatted error message. |
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* @param mixed $argument |
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* @param string $errorMessage |
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* @return string the error message |
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*/ |
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private static function getErrorMessage($argument, $errorMessage) { |
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return sprintf( |
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"Unexpected argument %s. %s", |
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self::getArgumentStringRepresentation($argument), |
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$errorMessage |
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); |
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} |
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/** |
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* Return the argument string representation. |
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* @param mixed $argument the argument to return the representation |
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* @return string the argument representation |
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*/ |
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private static function getArgumentStringRepresentation($argument) { |
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switch (gettype($argument)) { |
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case "object": |
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$representation = sprintf("[object #%s] %s", spl_object_hash($argument), get_class($argument)); |
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break; |
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default: |
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$representation = sprintf( |
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"[%s] %s", |
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gettype($argument), |
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str_replace(["\r", "\n", " "], "", var_export($argument, true)) |
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); |
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} |
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return $representation; |
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} |
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} |
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