/**
* Lazy connection
*
* Get the connection to Redis server and return it
*
* @throws \Predis\Connection\ConnectionException
*/
public function getRedisClient()
{
if (empty($this->redisHandler)) {
$this->redisHandler = new RedisHandler();
}
return $this->redisHandler->getConnection();
}
/**
* Lazy connection
*
* Get the connection to Redis server and return it
*
* @throws \Predis\Connection\ConnectionException
*/
public function getRedisClient()
{
$resource = null;
if ($this->redisHandler != null) {
$reflectorClass = new ReflectionClass($this->redisHandler->getConnection());
$reflectorProperty = $reflectorClass->getParentClass()->getProperty('resource');
$reflectorProperty->setAccessible(true);
$resource = $reflectorProperty->getValue($this->redisHandler->getConnection());
}
if ($this->redisHandler === null || !$this->redisHandler->getConnection()->isConnected() || !is_resource($resource)) {
$this->redisHandler = new Predis\Client(INIT::$REDIS_SERVERS);
}
return $this->redisHandler;
}
table.insert(hashes, redis.call('hgetall', key))
end
return hashes
LUA;
public function getScript()
{
return self::BODY;
}
}
// ------------------------------------------------------------------------- //
$parameters = array('tcp://127.0.0.1:6379/?alias=master', 'tcp://127.0.0.1:6380/?alias=slave');
$options = array('profile' => function ($options, $option) {
$profile = $options->getDefault($option);
$profile->defineCommand('hmgetall', 'HashMultipleGetAll');
return $profile;
}, 'replication' => function () {
$strategy = new ReplicationStrategy();
$strategy->setScriptReadOnly(HashMultipleGetAll::BODY);
$replication = new MasterSlaveReplication($strategy);
return $replication;
});
// ------------------------------------------------------------------------- //
$client = new Predis\Client($parameters, $options);
// Execute the following commands on the master server using redis-cli:
// $ ./redis-cli HMSET metavars foo bar hoge piyo
// $ ./redis-cli HMSET servers master host1 slave host2
$hashes = $client->hmgetall('metavars', 'servers');
$replication = $client->getConnection();
$stillOnSlave = $replication->getCurrent() === $replication->getConnectionById('slave');
echo "Is still on slave? ", $stillOnSlave ? 'YES!' : 'NO!', PHP_EOL;
var_export($hashes);
$this->storeDebug($command, '->');
}
public function readResponse(CommandInterface $command)
{
$response = parent::readResponse($command);
$this->storeDebug($command, '<-');
return $response;
}
public function getDebugBuffer()
{
return $this->debugBuffer;
}
}
$options = array('connections' => array('tcp' => 'SimpleDebuggableConnection'));
$client = new Predis\Client($single_server, $options);
$client->set('foo', 'bar');
$client->get('foo');
$client->info();
var_export($client->getConnection()->getDebugBuffer());
/* OUTPUT:
array (
0 => 'SELECT 15 -> 127.0.0.1:6379 [0.0008s]',
1 => 'SELECT 15 <- 127.0.0.1:6379 [0.001s]',
2 => 'SET foo -> 127.0.0.1:6379 [0.001s]',
3 => 'SET foo <- 127.0.0.1:6379 [0.0011s]',
4 => 'GET foo -> 127.0.0.1:6379 [0.0013s]',
5 => 'GET foo <- 127.0.0.1:6379 [0.0015s]',
6 => 'INFO -> 127.0.0.1:6379 [0.0019s]',
7 => 'INFO <- 127.0.0.1:6379 [0.0022s]',
)
*/
// scenarios. The only but relevant difference with a basic replication scenario
// is that sentinel servers can manage the master server and its slaves based on
// their state, which means that they are able to provide an authoritative and
// updated configuration to clients thus avoiding static configurations for the
// replication servers and their roles.
// Instead of connection parameters pointing to redis nodes, we provide a list
// of instances of redis-sentinel. Users should always provide a timeout value
// low enough to not hinder operations just in case a sentinel is unreachable
// but Predis uses a default value of 100 milliseconds for sentinel parameters
// without an explicit timeout value.
//
// NOTE: in real-world scenarios sentinels should be running on different hosts!
$sentinels = array('tcp://127.0.0.1:5380?timeout=0.100', 'tcp://127.0.0.1:5381?timeout=0.100', 'tcp://127.0.0.1:5382?timeout=0.100');
$client = new Predis\Client($sentinels, array('replication' => 'sentinel', 'service' => 'mymaster'));
// Read operation.
$exists = $client->exists('foo') ? 'yes' : 'no';
$current = $client->getConnection()->getCurrent()->getParameters();
echo "Does 'foo' exist on {$current->role}? {$exists}.", PHP_EOL;
// Write operation.
$client->set('foo', 'bar');
$current = $client->getConnection()->getCurrent()->getParameters();
echo "Now 'foo' has been set to 'bar' on {$current->role}!", PHP_EOL;
// Read operation.
$bar = $client->get('foo');
$current = $client->getConnection()->getCurrent()->getParameters();
echo "We fetched 'foo' from {$current->role} and its value is '{$bar}'.", PHP_EOL;
/* OUTPUT:
Does 'foo' exist on slave-127.0.0.1:6381? yes.
Now 'foo' has been set to 'bar' on master!
We fetched 'foo' from master and its value is 'bar'.
*/
/**
* auto-connect to the available cache-system on the server
*
* @return iAdapter
*/
protected function autoConnectToAvailableCacheSystem()
{
static $adapterCache;
if (is_object($adapterCache) && $adapterCache instanceof iAdapter) {
return $adapterCache;
} else {
$memcached = null;
$isMemcachedAvailable = false;
if (extension_loaded('memcached')) {
$memcached = new \Memcached();
$isMemcachedAvailable = $memcached->addServer('127.0.0.1', '11211');
}
if ($isMemcachedAvailable === false) {
$memcached = null;
}
$adapterMemcached = new AdapterMemcached($memcached);
if ($adapterMemcached->installed() === true) {
// fallback to Memcached
$adapter = $adapterMemcached;
} else {
$memcache = null;
$isMemcacheAvailable = false;
if (class_exists('\\Memcache')) {
$memcache = new \Memcache();
/** @noinspection PhpUsageOfSilenceOperatorInspection */
$isMemcacheAvailable = @$memcache->connect('127.0.0.1', 11211);
}
if ($isMemcacheAvailable === false) {
$memcache = null;
}
$adapterMemcache = new AdapterMemcache($memcache);
if ($adapterMemcache->installed() === true) {
// fallback to Memcache
$adapter = $adapterMemcache;
} else {
$redis = null;
$isRedisAvailable = false;
if (extension_loaded('redis')) {
if (class_exists('\\Predis\\Client')) {
$redis = new \Predis\Client(array('scheme' => 'tcp', 'host' => '127.0.0.1', 'port' => 6379, 'timeout' => '2.0'));
try {
$redis->connect();
$isRedisAvailable = $redis->getConnection()->isConnected();
} catch (\Exception $e) {
// nothing
}
}
}
if ($isRedisAvailable === false) {
$redis = null;
}
$adapterRedis = new AdapterPredis($redis);
if ($adapterRedis->installed() === true) {
// fallback to Redis
$adapter = $adapterRedis;
} else {
$adapterXcache = new AdapterXcache();
if ($adapterXcache->installed() === true) {
// fallback to Xcache
$adapter = $adapterXcache;
} else {
$adapterApc = new AdapterApc();
if ($adapterApc->installed() === true) {
// fallback to APC || APCu
$adapter = $adapterApc;
} else {
// no cache-adapter available -> use a array
$adapter = new AdapterArray();
}
}
}
}
}
// save to static cache
$adapterCache = $adapter;
}
return $adapter;
}
function testClientInitialization_ClusterConnectionParameters()
{
$params1 = array_merge(RC::getConnectionArguments(), array('connection_timeout' => 10, 'read_write_timeout' => 30));
$params2 = RC::getConnectionParametersArgumentsString($params1);
$params3 = new Predis\ConnectionParameters($params1);
$params4 = new Predis\Network\StreamConnection($params3);
$client1 = new Predis\Client(array($params1, $params2, $params3, $params4));
foreach ($client1->getConnection() as $connection) {
$parameters = $connection->getParameters();
$this->assertEquals($params1['host'], $parameters->host);
$this->assertEquals($params1['port'], $parameters->port);
$this->assertEquals($params1['connection_timeout'], $parameters->connection_timeout);
$this->assertEquals($params1['read_write_timeout'], $parameters->read_write_timeout);
$this->assertNull($parameters->password);
}
$connectionCluster = $client1->getConnection();
$client2 = new Predis\Client($connectionCluster);
$this->assertSame($connectionCluster, $client2->getConnection());
}
}
public function readResponse(CommandInterface $command)
{
$reply = parent::readResponse($command);
$this->storeDebug($command, '<-');
return $reply;
}
public function getDebugBuffer()
{
return $this->debugBuffer;
}
}
$options = array('connections' => array('tcp' => 'SimpleDebuggableConnection'));
$client = new Predis\Client($single_server, $options);
$client->set('foo', 'bar');
$client->get('foo');
$client->info();
print_r($client->getConnection()->getDebugBuffer());
/* OUTPUT:
Array
(
[0] => SELECT 15 -> 127.0.0.1:6379 [0.0008s]
[1] => SELECT 15 <- 127.0.0.1:6379 [0.0012s]
[2] => SET foo -> 127.0.0.1:6379 [0.0014s]
[3] => SET foo <- 127.0.0.1:6379 [0.0014s]
[4] => GET foo -> 127.0.0.1:6379 [0.0016s]
[5] => GET foo <- 127.0.0.1:6379 [0.0018s]
[6] => INFO -> 127.0.0.1:6379 [0.002s]
[7] => INFO <- 127.0.0.1:6379 [0.0025s]
)
*/
}
public function readResponse(ICommand $command)
{
$reply = parent::readResponse($command);
$this->storeDebug($command, '<-');
return $reply;
}
public function getDebugBuffer()
{
return $this->_debugBuffer;
}
}
$options = array('connections' => array('tcp' => 'SimpleDebuggableConnection'));
$redis = new Predis\Client($single_server, $options);
$redis->set('foo', 'bar');
$redis->get('foo');
$redis->info();
print_r($redis->getConnection()->getDebugBuffer());
/* OUTPUT:
Array
(
[0] => SELECT 15 -> 127.0.0.1:6379 [0.0008s]
[1] => SELECT 15 <- 127.0.0.1:6379 [0.0012s]
[2] => SET foo -> 127.0.0.1:6379 [0.0014s]
[3] => SET foo <- 127.0.0.1:6379 [0.0014s]
[4] => GET foo -> 127.0.0.1:6379 [0.0016s]
[5] => GET foo <- 127.0.0.1:6379 [0.0018s]
[6] => INFO -> 127.0.0.1:6379 [0.002s]
[7] => INFO <- 127.0.0.1:6379 [0.0025s]
)
*/
