{
return true;
}
public function getFalse()
{
return false;
}
public function getNull()
{
return null;
}
public function getZero()
{
return 0;
}
public function getEmptystr()
{
return '';
}
}
$exchange = new Generic('example.fanout', $config);
$producer = new EchoProducer();
$methods = get_class_methods($producer);
$count = 0;
while (true) {
$method = $methods[array_rand($methods)];
$exchange->send($producer->{$method}());
echo "Sent message #{$count} ({$method})" . PHP_EOL;
$count++;
usleep(500000);
}
{
$continent_temperature = 'get' . ucfirst($continent) . 'Temperature';
return "{$this->{$continent_temperature}()} weather every week in {$continent}";
}
public function getDaily($continent)
{
$continent_temperature = 'get' . ucfirst($continent) . 'Temperature';
return "{$this->{$continent_temperature}()} weather every day in {$continent}";
}
private function getAfricaTemperature()
{
return 'warm';
}
private function getEuropeTemperature()
{
return 'cold';
}
}
$exchange = new Generic('example.topic.weather', Config::get('amqp_params'));
$forecast = new DemoStation();
$count = 0;
while (true) {
$continent = $forecast->continents[array_rand($forecast->continents)];
$term = $forecast->terms[array_rand($forecast->terms)];
$method = 'get' . ucfirst($term);
$weather = $forecast->{$method}($continent);
$exchange->send($weather, "example.topic.weather.{$continent}.{$term}");
echo "Sent {$continent} {$term} forecast #{$count}: {$weather}" . PHP_EOL;
$count++;
usleep(500000);
}
{
private $counter = 0;
private function count()
{
return $this->counter++;
}
public function consume($payload, AMQPEnvelope $envelope, AMQPQueue $queue)
{
if (rand(0, 100) > 90) {
// throw exception with probability 0.1
throw new Exception('Random exception');
}
echo "Received payload # {$this->count()} ", gettype($payload), PHP_EOL;
}
public function failure(Exception $e, AMQPEnvelope $envelope, AMQPQueue $queue)
{
echo "Failed to process payload # {$this->count()} due to exception: {$e->getMessage()}", PHP_EOL;
}
public function before(AMQPEnvelope $envelope, AMQPQueue $queue)
{
echo "Method ", __METHOD__, " called before consuming", PHP_EOL;
}
public function after(AMQPEnvelope $envelope, AMQPQueue $queue)
{
echo "Method ", __METHOD__, " called after consuming", PHP_EOL;
$queue->cancel();
// stop consumer to receive envelopes from server
}
}
$exchange = new Generic('example.fanout', $config);
$exchange->listen(new EchoConsumer(), 'example.fanout.default');
echo "Receiver listen to {$this->radio_station} radio station", PHP_EOL;
}
public function getRadioStation()
{
return $this->radio_station;
}
public function consume($payload, AMQPEnvelope $envelope, AMQPQueue $queue)
{
if (rand(0, 100) > 95) {
throw new Exception('some atmospheric disturbances');
} elseif (rand(0, 100) > 85) {
throw new Exception('low battery charge');
} elseif (rand(0, 100) > 75) {
throw new Exception('low audio quality');
}
echo "Received forecast #{$this->count()} from {$this->getRadioStation()} radio station: {$payload}, route key({$envelope->getRoutingKey()})", PHP_EOL;
}
public function failure(Exception $e, AMQPEnvelope $envelope, AMQPQueue $queue)
{
echo "Failed to receive forecast #{$this->count()} from {$this->getRadioStation()} radio station due to {$e->getMessage()}", PHP_EOL;
}
public function preConsume(AMQPQueue $queue)
{
}
public function postConsume(AMQPQueue $queue)
{
}
}
$exchange = new Generic('example.topic.weather', Config::get('amqp_params'));
$receiver = new DemoReceiver();
$exchange->listen($receiver, "example.topic.weather.{$receiver->getRadioStation()}");