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<?php namespace BuildR\Foundation\Exception; |
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use BuildR\Foundation\Object\ArrayConvertibleInterface; |
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use \Exception; |
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use \IteratorAggregate; |
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use \ArrayIterator; |
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use \Countable; |
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/** |
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* Aggregates multiple PHP exception into one exception. Useful when iterating over |
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* large set of objects and call a method on each that might be raise an exception. |
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* |
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* Simply aggregate all thrown exception to this class and throw it when the |
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* iteration is end. |
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* |
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* BuildR PHP Framework |
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* |
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* @author Zoltán Borsos <[email protected]> |
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* @package Foundation |
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* @subpackage Exception |
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* |
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* @copyright Copyright 2015, Zoltán Borsos. |
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* @license https://github.com/Zolli/BuildR/blob/master/LICENSE.md |
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* @link https://github.com/Zolli/BuildR |
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* |
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* @codeCoverageIgnore |
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*/ |
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class AggregateException extends Exception implements \IteratorAggregate, Countable, ArrayConvertibleInterface { |
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/** |
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* @var array |
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*/ |
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private $collection = []; |
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/** |
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* Add a new exception to the stack |
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* |
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* @param \Exception|\Throwable $exception |
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*/ |
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public function add($exception) { |
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if($this->checkException($exception) === FALSE) { |
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trigger_error( |
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'Only subclasses of \Exception and implementations of \Throwable can be aggregated!', |
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E_USER_ERROR |
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); |
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} |
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$this->collection[] = $exception; |
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} |
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/** |
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* Check the exception |
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* |
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* @param \Throwable|\Exception $exception |
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* @return bool |
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* |
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* @codeCoverageIgnore |
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*/ |
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private function checkException($exception) { |
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if(version_compare(PHP_VERSION, '7.0.0', '>=')) { |
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return in_array("Throwable", class_implements($exception)); |
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} |
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return ($exception instanceof Exception); |
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} |
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/** |
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* Determines, the current exception stack contains any exception |
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* |
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* @return bool |
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*/ |
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public function hasAny() { |
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return ($this->count() > 0); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getIterator() { |
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return new ArrayIterator($this->collection); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function toArray() { |
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return $this->collection; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function count() { |
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return count($this->collection); |
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} |
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} |
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BuildrPHP /
Foundation
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: