Files
predis/tests/Predis/ClientTest.php
T
2015-07-24 21:25:40 +02:00

847 lines
29 KiB
PHP

<?php
/*
* This file is part of the Predis package.
*
* (c) Daniele Alessandri <suppakilla@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Predis;
use PredisTestCase;
/**
*
*/
class ClientTest extends PredisTestCase
{
/**
* @group disconnected
*/
public function testConstructorWithoutArguments()
{
$client = new Client();
$connection = $client->getConnection();
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $connection);
$parameters = $connection->getParameters();
$this->assertSame($parameters->host, '127.0.0.1');
$this->assertSame($parameters->port, 6379);
$options = $client->getOptions();
$this->assertSame($options->profile->getVersion(), Profile\Factory::getDefault()->getVersion());
$this->assertFalse($client->isConnected());
}
/**
* @group disconnected
*/
public function testConstructorWithNullArgument()
{
$client = new Client(null);
$connection = $client->getConnection();
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $connection);
$parameters = $connection->getParameters();
$this->assertSame($parameters->host, '127.0.0.1');
$this->assertSame($parameters->port, 6379);
$options = $client->getOptions();
$this->assertSame($options->profile->getVersion(), Profile\Factory::getDefault()->getVersion());
$this->assertFalse($client->isConnected());
}
/**
* @group disconnected
*/
public function testConstructorWithNullAndNullArguments()
{
$client = new Client(null, null);
$connection = $client->getConnection();
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $connection);
$parameters = $connection->getParameters();
$this->assertSame($parameters->host, '127.0.0.1');
$this->assertSame($parameters->port, 6379);
$options = $client->getOptions();
$this->assertSame($options->profile->getVersion(), Profile\Factory::getDefault()->getVersion());
$this->assertFalse($client->isConnected());
}
/**
* @group disconnected
*/
public function testConstructorWithArrayArgument()
{
$client = new Client($arg1 = array('host' => 'localhost', 'port' => 7000));
$parameters = $client->getConnection()->getParameters();
$this->assertSame($parameters->host, $arg1['host']);
$this->assertSame($parameters->port, $arg1['port']);
}
/**
* @group disconnected
*/
public function testConstructorWithArrayOfArrayArgument()
{
$arg1 = array(
array('host' => 'localhost', 'port' => 7000),
array('host' => 'localhost', 'port' => 7001),
);
$client = new Client($arg1);
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $client->getConnection());
}
/**
* @group disconnected
*/
public function testConstructorWithStringArgument()
{
$client = new Client('tcp://localhost:7000');
$parameters = $client->getConnection()->getParameters();
$this->assertSame($parameters->host, 'localhost');
$this->assertSame($parameters->port, 7000);
}
/**
* @group disconnected
*/
public function testConstructorWithArrayOfStringArgument()
{
$client = new Client($arg1 = array('tcp://localhost:7000', 'tcp://localhost:7001'));
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $client->getConnection());
}
/**
* @group disconnected
*/
public function testConstructorWithArrayOfConnectionsArgument()
{
$connection1 = $this->getMock('Predis\Connection\NodeConnectionInterface');
$connection2 = $this->getMock('Predis\Connection\NodeConnectionInterface');
$client = new Client(array($connection1, $connection2));
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $cluster = $client->getConnection());
$this->assertSame($connection1, $cluster->getConnectionById(0));
$this->assertSame($connection2, $cluster->getConnectionById(1));
}
/**
* @group disconnected
*/
public function testConstructorWithConnectionArgument()
{
$factory = new Connection\Factory();
$connection = $factory->create('tcp://localhost:7000');
$client = new Client($connection);
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $client->getConnection());
$this->assertSame($connection, $client->getConnection());
$parameters = $client->getConnection()->getParameters();
$this->assertSame($parameters->host, 'localhost');
$this->assertSame($parameters->port, 7000);
}
/**
* @group disconnected
*/
public function testConstructorWithClusterArgument()
{
$cluster = new Connection\Aggregate\PredisCluster();
$factory = new Connection\Factory();
$factory->aggregate($cluster, array('tcp://localhost:7000', 'tcp://localhost:7001'));
$client = new Client($cluster);
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $client->getConnection());
$this->assertSame($cluster, $client->getConnection());
}
/**
* @group disconnected
*/
public function testConstructorWithReplicationArgument()
{
$replication = new Connection\Aggregate\MasterSlaveReplication();
$factory = new Connection\Factory();
$factory->aggregate($replication, array('tcp://host1?alias=master', 'tcp://host2?alias=slave'));
$client = new Client($replication);
$this->assertInstanceOf('Predis\Connection\Aggregate\ReplicationInterface', $client->getConnection());
$this->assertSame($replication, $client->getConnection());
}
/**
* @group disconnected
*/
public function testConstructorWithCallableArgument()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$callable = $this->getMock('stdClass', array('__invoke'));
$callable->expects($this->once())
->method('__invoke')
->with($this->isInstanceOf('Predis\Configuration\OptionsInterface'))
->will($this->returnValue($connection));
$client = new Client($callable);
$this->assertSame($connection, $client->getConnection());
}
/**
* @group disconnected
* @expectedException \UnexpectedValueException
* @expectedExceptionMessage The callable connection initializer returned an invalid type.
*/
public function testConstructorWithCallableConnectionInitializerThrowsExceptionOnInvalidReturnType()
{
$wrongType = $this->getMock('stdClass');
$callable = $this->getMock('stdClass', array('__invoke'));
$callable->expects($this->once())
->method('__invoke')
->with($this->isInstanceOf('Predis\Configuration\OptionsInterface'))
->will($this->returnValue($wrongType));
new Client($callable);
}
/**
* @group disconnected
*/
public function testConstructorWithNullAndArrayArgument()
{
$factory = $this->getMock('Predis\Connection\FactoryInterface');
$arg2 = array('profile' => '2.0', 'prefix' => 'prefix:', 'connections' => $factory);
$client = new Client(null, $arg2);
$profile = $client->getProfile();
$this->assertSame($profile->getVersion(), Profile\Factory::get('2.0')->getVersion());
$this->assertInstanceOf('Predis\Command\Processor\KeyPrefixProcessor', $profile->getProcessor());
$this->assertSame('prefix:', $profile->getProcessor()->getPrefix());
}
/**
* @group disconnected
*/
public function testConstructorWithArrayAndOptionReplication()
{
$arg1 = array('tcp://host1?alias=master', 'tcp://host2?alias=slave');
$arg2 = array('replication' => true);
$client = new Client($arg1, $arg2);
$this->assertInstanceOf('Predis\Connection\Aggregate\ReplicationInterface', $connection = $client->getConnection());
$this->assertSame('host1', $connection->getConnectionById('master')->getParameters()->host);
$this->assertSame('host2', $connection->getConnectionById('slave')->getParameters()->host);
}
/**
* @group disconnected
*/
public function testConstructorWithArrayAndOptionAggregate()
{
$arg1 = array('tcp://host1', 'tcp://host2');
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$fnaggregate = $this->getMock('stdClass', array('__invoke'));
$fnaggregate->expects($this->once())
->method('__invoke')
->with($arg1)
->will($this->returnValue($connection));
$fncluster = $this->getMock('stdClass', array('__invoke'));
$fncluster->expects($this->never())->method('__invoke');
$fnreplication = $this->getMock('stdClass', array('__invoke'));
$fnreplication->expects($this->never())->method('__invoke');
$arg2 = array(
'aggregate' => function () use ($fnaggregate) { return $fnaggregate; },
'cluster' => function () use ($fncluster) { return $fncluster; },
'replication' => function () use ($fnreplication) { return $fnreplication; },
);
$client = new Client($arg1, $arg2);
$this->assertSame($connection, $client->getConnection());
}
/**
* @group disconnected
* @expectedException \UnexpectedValueException
* @expectedExceptionMessage The callable connection initializer returned an invalid type.
*/
public function testConstructorWithArrayAndOptionAggregateThrowsExceptionOnInvalidReturnType()
{
$arg1 = array('tcp://host1', 'tcp://host2');
$fnaggregate = $this->getMock('stdClass', array('__invoke'));
$fnaggregate->expects($this->once())
->method('__invoke')
->with($arg1)
->will($this->returnValue(false));
$arg2 = array('aggregate' => function () use ($fnaggregate) { return $fnaggregate; });
new Client($arg1, $arg2);
}
/**
* @group disconnected
*/
public function testConnectAndDisconnect()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())->method('connect');
$connection->expects($this->once())->method('disconnect');
$client = new Client($connection);
$client->connect();
$client->disconnect();
}
/**
* @group disconnected
*/
public function testIsConnectedChecksConnectionState()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())->method('isConnected');
$client = new Client($connection);
$client->isConnected();
}
/**
* @group disconnected
*/
public function testQuitIsAliasForDisconnect()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())->method('disconnect');
$client = new Client($connection);
$client->quit();
}
/**
* @group disconnected
*/
public function testCreatesNewCommandUsingSpecifiedProfile()
{
$ping = Profile\Factory::getDefault()->createCommand('ping', array());
$profile = $this->getMock('Predis\Profile\ProfileInterface');
$profile->expects($this->once())
->method('createCommand')
->with('ping', array())
->will($this->returnValue($ping));
$client = new Client(null, array('profile' => $profile));
$this->assertSame($ping, $client->createCommand('ping', array()));
}
/**
* @group disconnected
*/
public function testExecuteCommandReturnsParsedResponses()
{
$profile = Profile\Factory::getDefault();
$ping = $profile->createCommand('ping', array());
$hgetall = $profile->createCommand('hgetall', array('metavars', 'foo', 'hoge'));
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->at(0))
->method('executeCommand')
->with($ping)
->will($this->returnValue(new Response\Status('PONG')));
$connection->expects($this->at(1))
->method('executeCommand')
->with($hgetall)
->will($this->returnValue(array('foo', 'bar', 'hoge', 'piyo')));
$client = new Client($connection);
$this->assertEquals('PONG', $client->executeCommand($ping));
$this->assertSame(array('foo' => 'bar', 'hoge' => 'piyo'), $client->executeCommand($hgetall));
}
/**
* @group disconnected
* @expectedException \Predis\Response\ServerException
* @expectedExceptionMessage Operation against a key holding the wrong kind of value
*/
public function testExecuteCommandThrowsExceptionOnRedisError()
{
$ping = Profile\Factory::getDefault()->createCommand('ping', array());
$expectedResponse = new Response\Error('ERR Operation against a key holding the wrong kind of value');
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->will($this->returnValue($expectedResponse));
$client = new Client($connection);
$client->executeCommand($ping);
}
/**
* @group disconnected
*/
public function testExecuteCommandReturnsErrorResponseOnRedisError()
{
$ping = Profile\Factory::getDefault()->createCommand('ping', array());
$expectedResponse = new Response\Error('ERR Operation against a key holding the wrong kind of value');
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->will($this->returnValue($expectedResponse));
$client = new Client($connection, array('exceptions' => false));
$response = $client->executeCommand($ping);
$this->assertSame($response, $expectedResponse);
}
/**
* @group disconnected
*/
public function testCallingRedisCommandExecutesInstanceOfCommand()
{
$ping = Profile\Factory::getDefault()->createCommand('ping', array());
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->with($this->isInstanceOf('Predis\Command\ConnectionPing'))
->will($this->returnValue('PONG'));
$profile = $this->getMock('Predis\Profile\ProfileInterface');
$profile->expects($this->once())
->method('createCommand')
->with('ping', array())
->will($this->returnValue($ping));
$options = array('profile' => $profile);
$client = $this->getMock('Predis\Client', null, array($connection, $options));
$this->assertEquals('PONG', $client->ping());
}
/**
* @group disconnected
* @expectedException \Predis\Response\ServerException
* @expectedExceptionMessage Operation against a key holding the wrong kind of value
*/
public function testCallingRedisCommandThrowsExceptionOnServerError()
{
$expectedResponse = new Response\Error('ERR Operation against a key holding the wrong kind of value');
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->with($this->isInstanceOf('Predis\Command\ConnectionPing'))
->will($this->returnValue($expectedResponse));
$client = new Client($connection);
$client->ping();
}
/**
* @group disconnected
*/
public function testCallingRedisCommandReturnsErrorResponseOnRedisError()
{
$expectedResponse = new Response\Error('ERR Operation against a key holding the wrong kind of value');
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->with($this->isInstanceOf('Predis\Command\ConnectionPing'))
->will($this->returnValue($expectedResponse));
$client = new Client($connection, array('exceptions' => false));
$response = $client->ping();
$this->assertSame($response, $expectedResponse);
}
/**
* @group disconnected
*/
public function testRawCommand()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->at(0))
->method('executeCommand')
->with($this->isRedisCommand('SET', array('foo', 'bar')))
->will($this->returnValue(new Response\Status('OK')));
$connection->expects($this->at(1))
->method('executeCommand')
->with($this->isRedisCommand('GET', array('foo')))
->will($this->returnValue('bar'));
$connection->expects($this->at(2))
->method('executeCommand')
->with($this->isRedisCommand('PING'))
->will($this->returnValue('PONG'));
$client = new Client($connection);
$this->assertSame('OK', $client->executeRaw(array('SET', 'foo', 'bar')));
$this->assertSame('bar', $client->executeRaw(array('GET', 'foo')));
$error = true; // $error is always populated by reference.
$this->assertSame('PONG', $client->executeRaw(array('PING'), $error));
$this->assertFalse($error);
}
/**
* @group disconnected
*/
public function testRawCommandNeverAppliesPrefix()
{
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->at(0))
->method('executeCommand')
->with($this->isRedisCommand('SET', array('foo', 'bar')))
->will($this->returnValue(new Response\Status('OK')));
$connection->expects($this->at(1))
->method('executeCommand')
->with($this->isRedisCommand('GET', array('foo')))
->will($this->returnValue('bar'));
$client = new Client($connection, array('prefix' => 'predis:'));
$this->assertSame('OK', $client->executeRaw(array('SET', 'foo', 'bar')));
$this->assertSame('bar', $client->executeRaw(array('GET', 'foo')));
}
/**
* @group disconnected
*/
public function testRawCommandNeverThrowsExceptions()
{
$message = 'ERR Mock error response';
$response = new Response\Error($message);
$connection = $this->getMock('Predis\Connection\ConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->with($this->isRedisCommand('PING'))
->will($this->returnValue($response));
$client = new Client($connection, array('exceptions' => true));
$this->assertSame($message, $client->executeRaw(array('PING'), $error));
$this->assertTrue($error);
}
/**
* @group disconnected
* @expectedException \Predis\ClientException
* @expectedExceptionMessage Command 'INVALIDCOMMAND' is not a registered Redis command.
*/
public function testThrowsExceptionOnNonRegisteredRedisCommand()
{
$client = new Client();
$client->invalidCommand();
}
/**
* @group disconnected
*/
public function testGetConnectionFromAggregateConnectionWithAlias()
{
$client = new Client(array('tcp://host1?alias=node01', 'tcp://host2?alias=node02'));
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $cluster = $client->getConnection());
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $node01 = $client->getConnectionById('node01'));
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $node02 = $client->getConnectionById('node02'));
$this->assertSame('host1', $node01->getParameters()->host);
$this->assertSame('host2', $node02->getParameters()->host);
}
/**
* @group disconnected
* @expectedException \Predis\NotSupportedException
* @expectedExceptionMessage Retrieving connections by ID is supported only by aggregate connections.
*/
public function testGetConnectionByIdWorksOnlyWithAggregateConnections()
{
$client = new Client();
$client->getConnectionById('node01');
}
/**
* @group disconnected
*/
public function testCreateClientWithConnectionFromAggregateConnection()
{
$client = new Client(array('tcp://host1?alias=node01', 'tcp://host2?alias=node02'), array('prefix' => 'pfx:'));
$this->assertInstanceOf('Predis\Connection\Aggregate\ClusterInterface', $cluster = $client->getConnection());
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $node01 = $client->getConnectionById('node01'));
$this->assertInstanceOf('Predis\Connection\NodeConnectionInterface', $node02 = $client->getConnectionById('node02'));
$clientNode02 = $client->getClientFor('node02');
$this->assertInstanceOf('Predis\Client', $clientNode02);
$this->assertSame($node02, $clientNode02->getConnection());
$this->assertSame($client->getOptions(), $clientNode02->getOptions());
}
/**
* @group disconnected
*/
public function testGetClientForReturnsInstanceOfSubclass()
{
$nodes = array('tcp://host1?alias=node01', 'tcp://host2?alias=node02');
$client = $this->getMock('Predis\Client', array('dummy'), array($nodes), 'SubclassedClient');
$this->assertInstanceOf('SubclassedClient', $client->getClientFor('node02'));
}
/**
* @group disconnected
*/
public function testPipelineWithoutArgumentsReturnsPipeline()
{
$client = new Client();
$this->assertInstanceOf('Predis\Pipeline\Pipeline', $client->pipeline());
}
/**
* @group disconnected
*/
public function testPipelineWithArrayReturnsPipeline()
{
$client = new Client();
$this->assertInstanceOf('Predis\Pipeline\Pipeline', $client->pipeline(array()));
$this->assertInstanceOf('Predis\Pipeline\Atomic', $client->pipeline(array('atomic' => true)));
$this->assertInstanceOf('Predis\Pipeline\FireAndForget', $client->pipeline(array('fire-and-forget' => true)));
}
/**
* @group disconnected
*/
public function testPipelineWithCallableExecutesPipeline()
{
$callable = $this->getMock('stdClass', array('__invoke'));
$callable->expects($this->once())
->method('__invoke')
->with($this->isInstanceOf('Predis\Pipeline\Pipeline'));
$client = new Client();
$client->pipeline($callable);
}
/**
* @group disconnected
*/
public function testPubSubLoopWithoutArgumentsReturnsPubSubConsumer()
{
$client = new Client();
$this->assertInstanceOf('Predis\PubSub\Consumer', $client->pubSubLoop());
}
/**
* @group disconnected
*/
public function testPubSubLoopWithArrayReturnsPubSubConsumerWithOptions()
{
$connection = $this->getMock('Predis\Connection\NodeConnectionInterface');
$options = array('subscribe' => 'channel');
$client = new Client($connection);
$this->assertInstanceOf('Predis\PubSub\Consumer', $pubsub = $client->pubSubLoop($options));
$reflection = new \ReflectionProperty($pubsub, 'options');
$reflection->setAccessible(true);
$this->assertSame($options, $reflection->getValue($pubsub));
}
/**
* @group disconnected
*/
public function testPubSubLoopWithArrayAndCallableExecutesPubSub()
{
// NOTE: we use a subscribe count of 0 in the fake message to trick
// the context and to make it think that it can be closed
// since there are no more subscriptions active.
$message = array('subscribe', 'channel', 0);
$options = array('subscribe' => 'channel');
$connection = $this->getMock('Predis\Connection\NodeConnectionInterface');
$connection->expects($this->once())
->method('read')
->will($this->returnValue($message));
$callable = $this->getMock('stdClass', array('__invoke'));
$callable->expects($this->once())
->method('__invoke');
$client = new Client($connection);
$client->pubSubLoop($options, $callable);
}
/**
* @group disconnected
*/
public function testTransactionWithoutArgumentsReturnsMultiExec()
{
$client = new Client();
$this->assertInstanceOf('Predis\Transaction\MultiExec', $client->transaction());
}
/**
* @group disconnected
*/
public function testTransactionWithArrayReturnsMultiExecTransactionWithOptions()
{
$options = array('cas' => true, 'retry' => 3);
$client = new Client();
$this->assertInstanceOf('Predis\Transaction\MultiExec', $tx = $client->transaction($options));
// I hate this part but reflection is the easiest way in this case.
$property = new \ReflectionProperty($tx, 'modeCAS');
$property->setAccessible(true);
$this->assertSame($options['cas'], $property->getValue($tx));
$property = new \ReflectionProperty($tx, 'attempts');
$property->setAccessible(true);
$this->assertSame($options['retry'], $property->getValue($tx));
}
/**
* @group disconnected
*/
public function testTransactionWithArrayAndCallableExecutesMultiExec()
{
// We use CAS here as we don't care about the actual MULTI/EXEC context.
$options = array('cas' => true, 'retry' => 3);
$connection = $this->getMock('Predis\Connection\NodeConnectionInterface');
$connection->expects($this->once())
->method('executeCommand')
->will($this->returnValue(new Response\Status('QUEUED')));
$txCallback = function ($tx) {
$tx->ping();
};
$callable = $this->getMock('stdClass', array('__invoke'));
$callable->expects($this->once())
->method('__invoke')
->will($this->returnCallback($txCallback));
$client = new Client($connection);
$client->transaction($options, $callable);
}
/**
* @group disconnected
*/
public function testMonitorReturnsMonitorConsumer()
{
$connection = $this->getMock('Predis\Connection\NodeConnectionInterface');
$client = new Client($connection);
$this->assertInstanceOf('Predis\Monitor\Consumer', $monitor = $client->monitor());
}
/**
* @group disconnected
*/
public function testClientResendScriptCommandUsingEvalOnNoScriptErrors()
{
$command = $this->getMockForAbstractClass('Predis\Command\ScriptCommand', array(), '', true, true, true, array('parseResponse'));
$command->expects($this->once())
->method('getScript')
->will($this->returnValue('return redis.call(\'exists\', KEYS[1])'));
$command->expects($this->once())
->method('parseResponse')
->with('OK')
->will($this->returnValue(true));
$connection = $this->getMock('Predis\Connection\NodeConnectionInterface');
$connection->expects($this->at(0))
->method('executeCommand')
->with($command)
->will($this->returnValue(new Response\Error('NOSCRIPT')));
$connection->expects($this->at(1))
->method('executeCommand')
->with($this->isInstanceOf('Predis\Command\ServerEval'))
->will($this->returnValue('OK'));
$client = new Client($connection);
$this->assertTrue($client->executeCommand($command));
}
// ******************************************************************** //
// ---- HELPER METHODS ------------------------------------------------ //
// ******************************************************************** //
/**
* Returns an URI string representation of the specified connection parameters.
*
* @param array $parameters Array of connection parameters.
*
* @return string URI string.
*/
protected function getParametersString(array $parameters)
{
$defaults = $this->getDefaultParametersArray();
$scheme = isset($parameters['scheme']) ? $parameters['scheme'] : $defaults['scheme'];
$host = isset($parameters['host']) ? $parameters['host'] : $defaults['host'];
$port = isset($parameters['port']) ? $parameters['port'] : $defaults['port'];
unset($parameters['scheme'], $parameters['host'], $parameters['port']);
$uriString = "$scheme://$host:$port/?";
foreach ($parameters as $k => $v) {
$uriString .= "$k=$v&";
}
return $uriString;
}
}