public function testMinSignedInt8()
{
$minSignedInt8 = -0x80;
$packedMinSignedInt8 = Packer::packSignedInt8($minSignedInt8);
$unpackedMinSignedInt8 = Packer::unpackSignedInt8($packedMinSignedInt8);
$this->assertSame($minSignedInt8, $unpackedMinSignedInt8);
}
public function send($requiredAcks, $timeout, $topics)
{
// Add header (ApiKey, ApiVersion, CorrelationId, ClientId)
$data = $this->buildHeader();
// Add RequiredAcks
$data .= Packer::packSignedInt16($requiredAcks);
// Add Timeout
$data .= Packer::packSignedInt32($timeout);
// Add Topic count
$data .= Packer::packSignedInt32(count($topics));
// Add Topics
foreach ($topics as $topic => $partitions) {
// Add Topic
$data .= Packer::packStringSignedInt16($topic);
// Add Partition count
$data .= Packer::packSignedInt32(count($partitions));
// Add Partitions
foreach ($partitions as $partition => $messages) {
$data .= Packer::packSignedInt32($partition);
$packedMessageSet = '';
foreach ($messages as $message) {
if (!is_array($message)) {
$offset = 0;
// Producer does not know message offset, so we can fill with any value (we choose 0)
$magicByte = 0;
// Used to ensure backwards compatibility. Currently set to 0;
$attributes = 0;
$key = null;
} else {
$offset = array_key_exists('Offset', $message) ? $message['Offset'] : 0;
$magicByte = array_key_exists('MagicByte', $message) ? $message['MagicByte'] : 0;
$attributes = array_key_exists('Attributes', $message) ? $message['Attributes'] : 0;
$attributes = 0;
// TODO: handle compression
$key = array_key_exists('Key', $message) ? $message['Key'] : null;
}
$packedMessage = Packer::packSignedInt8($magicByte);
$packedMessage .= Packer::packSignedInt8($attributes);
$packedMessage .= Packer::packStringSignedInt32($key);
$packedMessage .= Packer::packStringSignedInt32($message);
$packedMessage = Packer::packSignedInt32(crc32($packedMessage)) . $packedMessage;
$packedMessageSet .= Packer::packSignedInt64($offset) . Packer::packStringSignedInt32($packedMessage);
}
// Add MessageSet
$data .= Packer::packStringSignedInt32($packedMessageSet);
}
}
// Concat data length (32 bits) and data
$data = Packer::packStringSignedInt32($data);
// Send data
return $this->client->write($data);
}