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<?php |
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namespace Axiom\Rivescript\Cortex\ContentLoader; |
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use Axiom\Rivescript\Exceptions\ContentLoadingException; |
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use DirectoryIterator; |
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use SplFileObject; |
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/** |
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* The ContentLoader assists in loading information |
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* into the Rivescript interpreter. The data will be |
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* store in a stream for the brain to learn |
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* from. |
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* |
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* @package Rivescript-php |
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* @subpackage Core |
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* @category ContentLoader |
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* @author Johnny Mast <[email protected]> |
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*/ |
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/** |
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* ContentLoader class. |
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*/ |
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class ContentLoader |
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{ |
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/** |
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* The stream resource. |
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* |
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* @var false|resource |
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*/ |
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private $stream; |
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/** |
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* The stream wrapper name. |
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* |
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* @var string |
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*/ |
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protected $name = 'rivescript'; |
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/** |
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* ContentLoader constructor. |
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* |
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* @throws \Axiom\Rivescript\Exceptions\ContentLoadingException |
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*/ |
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public function __construct() |
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{ |
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$existed = in_array($this->name, stream_get_wrappers()); |
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if ($existed) { |
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stream_wrapper_unregister($this->name); |
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} |
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if (stream_wrapper_register($this->name, ContentStream::class)) { |
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$this->stream = fopen($this->name . "://input", "r+"); |
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} |
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if (is_resource($this->stream) === false) { |
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throw new ContentLoadingException("Could not instantiate new rivescript content stream."); |
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} |
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} |
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/** |
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* ContentLoader deconstruct. |
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*/ |
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public function __destruct() |
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{ |
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fclose($this->getStream()); |
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} |
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/** |
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* Return the stream. |
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* |
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* @return false|resource |
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*/ |
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public function getStream() |
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{ |
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return $this->stream; |
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} |
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/** |
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* Load strings / files or whole directories |
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* into the brain. |
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* |
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* @param mixed $info |
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* |
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* @return void |
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*/ |
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public function load($info) |
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{ |
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if (is_string($info) === true && file_exists($info) === false) { |
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$this->writeToMemory($info); |
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} elseif (is_string($info) === true && is_dir($info) === true) { |
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$this->loadDirectory($info); |
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} elseif (is_string($info) === true && file_exists($info) === true) { |
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$this->loadFile($info); |
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} elseif (is_array($info) === true and count($info) > 0) { |
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foreach ($info as $file) { |
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if (file_exists($file)) { |
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$this->loadFile($file); |
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} |
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} |
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} |
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} |
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/** |
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* Load rivescript files from a given path. |
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* |
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* @param string $path Path to the directory to load. |
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* |
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* @return void |
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*/ |
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public function loadDirectory(string $path) |
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{ |
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foreach (new DirectoryIterator($path) as $file) { |
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if ($file->isDot()) |
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continue; |
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$this->loadFile($file->getPathname()); |
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} |
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} |
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/** |
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* Load a single file into memory. |
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* |
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* @param string $file The Rivescript file to load. |
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* |
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* @return void |
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*/ |
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public function loadFile(string $file) |
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{ |
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$file = new SplFileObject($file); |
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while (!$file->eof()) { |
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$line = $file->fgets(); |
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$this->writeToMemory($line); |
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} |
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} |
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/** |
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* Write rivescript interpretable strings into |
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* its collective brain. |
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* |
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* @param string $text The text to write to memory. |
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* |
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* @return void |
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*/ |
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public function writeToMemory(string $text) |
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147
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{ |
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if ($this->stream) { |
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fwrite($this->stream, $text); |
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} |
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} |
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} |
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johnnymast /
rivescript-php
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