1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | <?php namespace DrSlump\Protobuf\Codec; use DrSlump\Protobuf; /** * This codec serializes to Protobuf's TextFormat, unserialization * is not supported. * */ class TextFormat implements Protobuf\CodecInterface { /** * @param \DrSlump\Protobuf\Message $message * @return string */ public function encode(Protobuf\Message $message) { return $this->encodeMessage($message); } /** * * @throw \DrSlump\Protobuf\Exception - Decoding is not supported * @param \DrSlump\Protobuf\Message $message * @param String $data * @return \DrSlump\Protobuf\Message */ public function decode(Protobuf\Message $message, $data) { throw new \BadMethodCallException('TextFormat codec does not support decoding'); } protected function encodeMessage(Protobuf\Message $message, $level = 0) { $descriptor = Protobuf::getRegistry()->getDescriptor($message); $indent = str_repeat(' ', $level); $data = ''; foreach ($descriptor->getFields() as $tag=>$field) { $empty = !$message->_has($tag); if ($field->isRequired() && $empty) { throw new \UnexpectedValueException( 'Message ' . get_class($message) . '\'s field tag ' . $tag . '(' . $field->getName() . ') is required but has no value' ); } if ($empty) { continue; } $name = $field->getName(); $value = $message->_get($tag); if ($field->isRepeated()) { foreach ($value as $val) { if ($field->getType() !== Protobuf::TYPE_MESSAGE) { $data .= $indent . $name . ': ' . json_encode($val) . "\n"; } else { $data .= $indent . $name . " {\n"; $data .= $this->encodeMessage($val, $level+1); $data .= $indent . "}\n"; } } } else { if ($field->getType() === Protobuf::TYPE_MESSAGE) { $data .= $indent . $name . " {\n"; $data .= $this->encodeMessage($value, $level+1); $data .= $indent . "}\n"; } else { $data .= $indent . $name . ': ' . json_encode($value) . "\n"; } } } return $data; } } |