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<?php |
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namespace RouterOS; |
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use \Iterator, |
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\ArrayAccess, |
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\Countable, |
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\Serializable; |
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/** |
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* This class was created by memory save reasons, it convert response |
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* from RouterOS to readable array in safe way. |
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* |
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* @param array $raw Array RAW response from server |
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* |
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* @return mixed |
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* |
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* Based on RouterOSResponseArray solution by @arily |
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* |
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* @package RouterOS\Iterators |
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* @link https://github.com/arily/RouterOSResponseArray |
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* @since 1.0.0 |
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*/ |
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class ResponseIterator implements Iterator, ArrayAccess, Countable, Serializable |
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{ |
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/** |
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* List of parser results from array |
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* |
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* @var array |
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*/ |
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private $parsed = []; |
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/** |
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* List of RAW results from RouterOS |
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* |
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* @var array |
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*/ |
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private $raw = []; |
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/** |
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* Initial value of array position |
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* |
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* @var int |
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*/ |
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private $current = 0; |
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/** |
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* Object of main client |
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* |
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* @var \RouterOS\Client |
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*/ |
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private $client; |
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/** |
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* ResponseIterator constructor. |
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* |
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* @param Client $client |
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*/ |
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public function __construct(Client $client) |
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{ |
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// Set current to default |
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$this->rewind(); |
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// Save client as parameter of object |
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$this->client = $client; |
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// Read RAW data from client |
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$raw = $client->read(false); |
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// This RAW should't be an error |
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$positions = array_keys($raw, '!re'); |
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$count = count($raw); |
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$result = []; |
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if (isset($positions[1])) { |
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foreach ($positions as $key => $position) { |
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// Get length of future block |
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$length = isset($positions[$key + 1]) |
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? $positions[$key + 1] - $position + 1 |
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: $count - $position; |
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// Convert array to simple items, save as result |
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$result[] = array_slice($raw, $position, $length); |
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} |
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} else { |
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$result = [$raw]; |
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} |
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$this->raw = $result; |
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} |
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/** |
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* Move forward to next element |
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*/ |
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public function next() |
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{ |
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++$this->current; |
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} |
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/** |
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* Previous value |
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*/ |
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public function prev() |
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{ |
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--$this->current; |
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} |
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/** |
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* Return the current element |
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* |
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* @return mixed |
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*/ |
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public function current() |
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{ |
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if (isset($this->parsed[$this->current])) { |
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return $this->parsed[$this->current]; |
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} |
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if ($this->valid()) { |
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if (!isset($this->parsed[$this->current])) { |
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$value = $this->client->parseResponse($this->raw[$this->current])[0]; |
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$this->offsetSet($this->current, $value); |
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} |
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return $this->parsed[$this->current]; |
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} |
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return null; |
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} |
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/** |
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* Return the key of the current element |
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* |
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* @return mixed |
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*/ |
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public function key() |
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{ |
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return $this->current; |
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} |
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/** |
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* Checks if current position is valid |
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* |
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* @return bool |
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*/ |
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public function valid(): bool |
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{ |
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return isset($this->raw[$this->current]); |
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} |
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/** |
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* Count elements of an object |
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* |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->raw); |
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} |
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/** |
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* Rewind the Iterator to the first element |
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*/ |
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public function rewind() |
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{ |
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$this->current = 0; |
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} |
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/** |
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* Offset to set |
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* |
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* @param mixed $offset |
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* @param mixed $value |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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if (null === $offset) { |
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$this->parsed[] = $value; |
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} else { |
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$this->parsed[$offset] = $value; |
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} |
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} |
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/** |
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* Whether a offset exists |
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* |
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* @param mixed $offset |
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* |
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* @return bool |
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*/ |
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public function offsetExists($offset): bool |
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{ |
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return isset($this->raw[$offset]) && $this->raw[$offset] !== ['!re']; |
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} |
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/** |
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* Offset to unset |
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* |
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* @param mixed $offset |
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*/ |
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public function offsetUnset($offset) |
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{ |
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unset($this->parsed[$offset], $this->raw[$offset]); |
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} |
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/** |
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* Offset to retrieve |
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* |
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* @param mixed $offset |
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* |
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* @return bool|mixed |
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*/ |
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public function offsetGet($offset) |
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{ |
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if (isset($this->parsed[$offset])) { |
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return $this->parsed[$offset]; |
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} |
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if (isset($this->raw[$offset]) && $this->raw[$offset] !== null) { |
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$f = $this->client->parseResponse($this->raw[$offset]); |
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if ($f !== []) { |
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return $this->parsed[$offset] = $f[0]; |
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} |
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} |
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return false; |
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} |
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/** |
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* String representation of object |
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* |
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* @return string |
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*/ |
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public function serialize(): string |
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{ |
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return serialize($this->raw); |
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} |
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/** |
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* Constructs the object |
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* |
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* @param string $serialized |
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*/ |
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public function unserialize($serialized) |
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{ |
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$this->raw = unserialize($serialized, null); |
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} |
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} |
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