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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Log\Writer; |
| 16 | |
| 17 | use Pop\Log\Formatter; |
| 18 | |
| 19 | /** |
| 20 | * Stream log writer class |
| 21 | * |
| 22 | * @category Pop |
| 23 | * @package Pop\Log |
| 24 | * @author Nick Sagona, III <dev@noladev.com> |
| 25 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 26 | * @license https://www.popphp.org/license New BSD License |
| 27 | * @version 5.0.0 |
| 28 | */ |
| 29 | class Stream extends AbstractWriter |
| 30 | { |
| 31 | |
| 32 | /** |
| 33 | * The underlying stream resource |
| 34 | * @var mixed |
| 35 | */ |
| 36 | protected mixed $stream = null; |
| 37 | |
| 38 | /** |
| 39 | * Whether this instance opened (and therefore owns/closes) the stream |
| 40 | * @var bool |
| 41 | */ |
| 42 | protected bool $ownsStream = false; |
| 43 | |
| 44 | /** |
| 45 | * Formatter used to shape each log entry |
| 46 | * @var Formatter\FormatterInterface |
| 47 | */ |
| 48 | protected Formatter\FormatterInterface $formatter; |
| 49 | |
| 50 | /** |
| 51 | * Constructor |
| 52 | * |
| 53 | * Instantiate the stream writer object. Accepts either a stream URL string (opened here with |
| 54 | * fopen($stream, 'a') and closed automatically when this instance is destroyed) or an already-open |
| 55 | * stream resource (e.g. the STDOUT/STDERR constants, or a caller-supplied fopen() handle) — in that |
| 56 | * case, the caller keeps ownership and this writer never closes it. |
| 57 | * |
| 58 | * @param mixed $stream |
| 59 | * @param ?Formatter\FormatterInterface $formatter |
| 60 | * @throws Exception |
| 61 | */ |
| 62 | public function __construct(mixed $stream, ?Formatter\FormatterInterface $formatter = null) |
| 63 | { |
| 64 | if (is_string($stream)) { |
| 65 | $handle = @fopen($stream, 'a'); |
| 66 | if ($handle === false) { |
| 67 | throw new Exception('Unable to open stream: ' . $stream); |
| 68 | } |
| 69 | $this->stream = $handle; |
| 70 | $this->ownsStream = true; |
| 71 | } elseif (is_resource($stream) && get_resource_type($stream) === 'stream') { |
| 72 | $this->stream = $stream; |
| 73 | } else { |
| 74 | throw new Exception('Stream must be a resource or a valid stream URL string.'); |
| 75 | } |
| 76 | |
| 77 | $this->formatter = $formatter ?? new Formatter\NdJson(); |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Create a writer targeting php://stdout |
| 82 | * |
| 83 | * @param ?Formatter\FormatterInterface $formatter |
| 84 | * @return static |
| 85 | */ |
| 86 | public static function stdout(?Formatter\FormatterInterface $formatter = null): static |
| 87 | { |
| 88 | return new static('php://stdout', $formatter); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Create a writer targeting php://stderr |
| 93 | * |
| 94 | * @param ?Formatter\FormatterInterface $formatter |
| 95 | * @return static |
| 96 | */ |
| 97 | public static function stderr(?Formatter\FormatterInterface $formatter = null): static |
| 98 | { |
| 99 | return new static('php://stderr', $formatter); |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Get the underlying stream resource |
| 104 | * |
| 105 | * @return mixed |
| 106 | */ |
| 107 | public function getStream(): mixed |
| 108 | { |
| 109 | return $this->stream; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Get the formatter |
| 114 | * |
| 115 | * @return Formatter\FormatterInterface |
| 116 | */ |
| 117 | public function getFormatter(): Formatter\FormatterInterface |
| 118 | { |
| 119 | return $this->formatter; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Write to the log |
| 124 | * |
| 125 | * @param string $level |
| 126 | * @param string $message |
| 127 | * @param array $context |
| 128 | * @throws Exception |
| 129 | * @return Stream |
| 130 | */ |
| 131 | public function writeLog(string $level, string $message, array $context = []): Stream |
| 132 | { |
| 133 | if ($this->isWithinLogLimit($level)) { |
| 134 | if (!is_resource($this->stream)) { |
| 135 | throw new Exception('Stream is no longer open.'); |
| 136 | } |
| 137 | $entry = $this->formatter->format($level, $message, $context) . PHP_EOL; |
| 138 | if (@fwrite($this->stream, $entry) === false) { |
| 139 | throw new Exception('Unable to write to stream.'); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | return $this; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Destructor |
| 148 | * |
| 149 | * Closes the underlying stream only if this instance opened it itself (i.e. was constructed from a |
| 150 | * string). A caller-supplied resource (including STDOUT/STDERR) is never closed here. |
| 151 | */ |
| 152 | public function __destruct() |
| 153 | { |
| 154 | if ($this->ownsStream && is_resource($this->stream)) { |
| 155 | fclose($this->stream); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | } |