/**
* Get the hostname and port of a broker.
*
* @param int the id of the brother to get the address of
*
* @return string the hostname and port of the broker, separated by a colon: host:port
*/
public function address($broker)
{
$data = sprintf(self::BROKER_PATH, (int) $broker);
$result = $this->zookeeper->get($data);
if (empty($result)) {
$result = null;
} else {
$parts = explode(":", $result);
$result = $parts[1] . ':' . $parts[2];
}
return $result;
}
public function testGetBrokerDetailWithEmptyResponse()
{
$zookeeperMock = $this->getMockBuilder('\\ZooKeeper')->disableOriginalConstructor()->getMock();
$zookeeperMock->expects($this->once())->method('exists')->with($this->equalTo(sprintf(Zookeeper::BROKER_DETAIL_PATH, 1)))->will($this->returnValue(true));
$zookeeperMock->expects($this->once())->method('get')->with($this->equalTo(sprintf(Zookeeper::BROKER_DETAIL_PATH, 1)))->will($this->returnValue(null));
$zookeeper = new Zookeeper();
$zookeeper->setZookeeper($zookeeperMock);
$this->assertEquals([], $zookeeper->getBrokerDetail(1));
}
/**
* Get the currently active brokers participating in a particular topic.
*
* @param string $topic the topic to get the brokers for
*
* @return array an array of brokers (int) that are participating in the topic
*/
public function brokers($topic)
{
$topicPath = sprintf(self::TOPIC_PATH, $topic);
if (!$this->zookeeper->exists($topicPath)) {
return array();
}
$children = $this->zookeeper->getChildren($topicPath);
if (empty($children)) {
return array();
}
$results = array();
foreach ($children as $child) {
$results[] = intval(str_replace($topicPath, '', $child));
}
return $results;
}
/**
* List the children of the given path, i.e. the name of the directories
* within the current node, if any
*
* @param string $path the path to the node
*
* @return array the subpaths within the given node
*/
public function getChildren($path)
{
if (strlen($path) > 1 && preg_match('@/$@', $path)) {
// remove trailing /
$path = substr($path, 0, -1);
}
return $this->zookeeper->getChildren($path);
}
function formList($askingInstance = null)
{
$zookeepers = Zookeeper::orderBy("name", "ASC")->get();
$tab = [];
foreach ($zookeepers as $zk) {
$tab[$zk->id] = $zk->name;
}
return $tab;
}
/**
* Get the currently active brokers participating in a particular topic.
*
* @param string $topic the topic to get the brokers for
*
* @return array an array of brokers (int) that are participating in the topic
*/
public function brokers($topic)
{
$topicPath = sprintf(self::TOPIC_PATH, $topic);
if (!@$this->zookeeper->exists($topicPath)) {
if ($this->zookeeper->getState() != Zookeeper::CONNECTED_STATE) {
$msg = 'Cannot connect to Zookeeper to fetch brokers for topic ' . $topic;
throw new Kafka_Exception_ZookeeperConnection($msg);
}
return array();
}
$children = $this->zookeeper->getChildren($topicPath);
if (empty($children)) {
return array();
}
$results = array();
foreach ($children as $child) {
$results[] = intval(str_replace($topicPath, '', $child));
}
return $results;
}
function commitOffset($groupId, $topic, $brokerId, $partition, \Kafka\Offset $offset)
{
$this->zkConnect();
$path = "/consumers/{$groupId}/offsets/{$topic}";
if (!$this->zk->exists($path)) {
$this->createPermaNode($path);
}
if (!$this->zk->exists("{$path}/{$brokerId}-{$partition}")) {
$this->createPermaNode("{$path}/{$brokerId}-{$partition}", $offset->__toString());
} else {
$this->zk->set("{$path}/{$brokerId}-{$partition}", $offset->__toString());
}
}
/**
* Gets all the partitions for a given topic.
*
* @param string $topic the topic to get the partitions for
*
* @return array an associative array of the broker (int) to the number of partitions (int)
*/
public function partitions($topic)
{
$offsetsPath = sprintf(self::OFFSETS_PATH, $this->group, $topic);
if (!$this->zookeeper->exists($offsetsPath)) {
return array();
}
$children = $this->zookeeper->getChildren($offsetsPath);
$partitions = array();
foreach ($children as $child) {
list($broker, $partition) = explode('-', str_replace($offsetsPath, '', $child), 2);
$partitions[intval($broker)] = intval($partition);
}
return $partitions;
}
/**
* Delete watch callback on a node, delete all callback when $callback is null
* @param string $path
* @param callable $callback
* @return boolean|NULL
*/
public function cancelWatch($path, $callback = null)
{
if (isset($this->callback[$path])) {
if (empty($callback)) {
unset($this->callback[$path]);
$this->zookeeper->get($path);
//reset the callback
return true;
} else {
$key = array_search($callback, $this->callback[$path]);
if ($key !== false) {
unset($this->callback[$path][$key]);
return true;
} else {
return null;
}
}
} else {
return null;
}
}
if ($animal->foodType == 'carnivore') {
$this->meat = $this->meat - 2;
} elseif ($animal->foodType == "herbivore") {
$this->veggies -= 2;
//$this->veggies - 2;
} elseif ($animal->foodType == 'omnivore') {
$this->veggies -= 2;
$this->meat -= 2;
}
}
public function getFoodStatus()
{
return "There are " . $this->meat . " units of meat, " . $this->veggies . " units of veggies.";
}
}
$kevin = new Zookeeper(10, 10);
$lion = new Animal('carnivore');
$cow = new Animal('herbivore');
$pig = new Animal('omnivore');
print_r($cow);
echo "<br>";
$kevin->feed($lion);
print_r($kevin);
echo $kevin->getFoodStatus();
echo "<br>";
$kevin->feed($cow);
echo $kevin->getFoodStatus();
echo "<br>";
$kevin->feed($pig);
echo $kevin->getFoodStatus();
echo "<br>";
/**
* Create parent node, if needed
*
* @param string $nodePath
*/
private function createParentIfNeeded($nodePath)
{
if (!$this->zk->exists($nodePath)) {
$this->zk->create($nodePath, 'Cruftflake machines', array(array('perms' => \Zookeeper::PERM_ALL, 'scheme' => 'world', 'id' => 'anyone')));
}
}
<?php
/**
* https://github.com/andreiz/php-zookeeper/blob/master/examples/Zookeeper_Example.php
*/
$zk = new Zookeeper('127.0.0.1:port,...,ip:port/path');
$brokersPath = '/brokers/ids';
$ids = $zk->getChildren($brokersPath);
$brokers = array();
foreach ($ids as $id) {
$path = $brokersPath . "/{$id}";
$val = $zk->get($path);
$val = json_decode($val, true);
$brokers[] = $val['host'] . ":" . $val['port'];
}
$brokersAddr = implode(',', $brokers);
//begin to consume
$conf = new RdKafka\Conf();
// Set the group id. This is required when storing offsets on the broker
$conf->set('group.id', 'my-alarm-group');
$conf->set('broker.version.fallback', '0.8.2.2');
// socket请求的超时时间。实际的超时时间为max.fetch.wait + socket.timeout.ms。
$conf->set('socket.timeout.ms', '400');
$consumer = new RdKafka\Consumer($conf);
$consumer->addBrokers($brokersAddr);
$consumer->setLogLevel(LOG_DEBUG);
$topicConf = new RdKafka\TopicConf();
$topicConf->set('auto.commit.interval.ms', 1000);
// Set the offset store method to 'file'
$topicConf->set('offset.store.method', 'file');
$topicConf->set('offset.store.path', sys_get_temp_dir());
private $veggies = 10;
public function feed($animal)
{
if ($animal->foodType == 'carnivore') {
$this->meat -= 2;
} elseif ($animal->foodType == 'herbivore') {
$this->veggies -= 2;
} elseif ($animal->foodType == 'omnivore') {
$this->meat--;
$this->veggies--;
} else {
die("Invalid animal type: " . $animal->foodType);
}
}
public function getFoodStatus()
{
return "meat: " . $this->meat . "veggies: " . $this->veggies;
}
}
$lion = new Animal('carnivore');
$sloth = new Animal('herbivore');
$bear = new Animal('omnivore');
$lorax = new Animal('candivore');
$zookeeper = new Zookeeper();
echo $zookeeper->getFoodStatus(), "<br>";
$zookeeper->feed($lion);
echo $zookeeper->getFoodStatus(), "<br>";
$zookeeper->feed($sloth);
echo $zookeeper->getFoodStatus(), "<br>";
$zookeeper->feed($bear);
echo $zookeeper->getFoodStatus(), "<br>";
<?php
/**
* Created by PhpStorm.
* User: bamdad
* Date: 2/3/2016
* Time: 9:02 PM
*/
include_once './autoload.php';
//ZooKeeper
$animal1 = new Rabbit('bunbun');
$animal2 = new Fish('nemo');
$zookeeper = new Zookeeper();
$zookeeper->takeCareOf($animal1);
$zookeeper->takeCareOf($animal2);
$zookeeper->feedTheAnimals();
$zookeeper->soundOff();
//Dice
$diceTrhow = new DiceThrow();
$count = array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
for ($x = 1; $x <= 1000; $x++) {
$res = $diceTrhow->throww();
$count[$res]++;
}
echo "Result for Normal Dice\n";
for ($x = 2; $x <= 12; $x++) {
print_r('sum=' . $x . ' , count=' . $count[$x] . "\n");
}
echo "Result for Sicherman Dice\n";
$sichermanDiceTrhow = new SichermanDiceThrow();
$count = array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
<?php
/**
* Created by PhpStorm.
* User: bamdad
* Date: 2/3/2016
* Time: 9:02 PM
*/
include_once './autoload.php';
//Animals
$animal1 = new Rabbit('bunbun');
$animal2 = new Fish('nemo');
$zookeeper = new Zookeeper();
$zookeeper->takeCareOf($animal1);
$zookeeper->takeCareOf($animal2);
echo "This zoo is taking care of " . sizeof($zookeeper) . " animals \n";
// $zookeeper->feedTheAnimals();
// $zookeeper->soundOff();
// $zookeeper->test();
$hungryCount = 0;
$fullCount = 0;
foreach ($zookeeper as $key => $value) {
if ($value->isHungry()) {
$hungryCount++;
} else {
$fullCount++;
}
}
echo "Hungry: #" . $hungryCount . " and Full:#" . $fullCount . "\n";
foreach ($zookeeper as $key => $value) {
echo $value->name . " is a " . get_class($value) . " who is ";