Completed
Pull Request — master (#21)
by Eugene
08:23
created

Client::isDisconnected()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 4
ccs 2
cts 2
cp 1
rs 10
c 0
b 0
f 0
cc 2
eloc 2
nc 2
nop 0
crap 2
1
<?php
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namespace Tarantool\Client;
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use Tarantool\Client\Connection\Connection;
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use Tarantool\Client\Exception\Exception;
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use Tarantool\Client\Packer\Packer;
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use Tarantool\Client\Request\AuthenticateRequest;
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use Tarantool\Client\Request\CallRequest;
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use Tarantool\Client\Request\EvaluateRequest;
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use Tarantool\Client\Request\PingRequest;
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use Tarantool\Client\Request\Request;
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use Tarantool\Client\Schema\Index;
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use Tarantool\Client\Schema\Space;
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class Client
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{
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    private $connection;
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    private $packer;
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    private $salt;
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    private $username;
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    private $password;
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    private $spaces = [];
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    /**
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     * @param Connection $connection
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     * @param Packer     $packer
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     */
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    public function __construct(Connection $connection, Packer $packer)
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    {
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        $this->connection = $connection;
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        $this->packer = $packer;
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    }
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    public function getConnection()
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    {
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        return $this->connection;
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    }
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    public function getPacker()
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    {
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        return $this->packer;
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    }
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    public function connect()
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    {
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        $this->salt = $this->connection->open();
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        if ($this->username) {
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            $this->authenticate($this->username, $this->password);
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        }
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    }
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    public function disconnect()
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    {
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        $this->connection->close();
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        $this->salt = null;
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    }
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    public function isDisconnected()
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    {
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        return $this->connection->isClosed() || !$this->salt;
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    }
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    public function authenticate($username, $password = null)
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    {
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        if ($this->isDisconnected()) {
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            $this->salt = $this->connection->open();
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        }
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        $request = new AuthenticateRequest($this->salt, $username, $password);
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        $response = $this->sendRequest($request);
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        $this->username = $username;
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        $this->password = $password;
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        $this->flushSpaces();
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        return $response;
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    }
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    public function ping()
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    {
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        $request = new PingRequest();
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        return $this->sendRequest($request);
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    }
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    /**
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     * @param string|int $space
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     *
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     * @return Space
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     */
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    public function getSpace($space)
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    {
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        if (isset($this->spaces[$space])) {
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            return $this->spaces[$space];
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        }
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        if (!is_string($space)) {
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            return $this->spaces[$space] = new Space($this, $space);
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        }
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        $spaceId = $this->getSpaceIdByName($space);
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        return $this->spaces[$space] = $this->spaces[$spaceId] = new Space($this, $spaceId);
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    }
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    public function call($funcName, array $args = [])
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    {
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        $request = new CallRequest($funcName, $args);
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        return $this->sendRequest($request);
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    }
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    public function evaluate($expr, array $args = [])
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    {
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        $request = new EvaluateRequest($expr, $args);
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        return $this->sendRequest($request);
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    }
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    public function flushSpaces()
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    {
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        $this->spaces = [];
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    }
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    public function sendRequest(Request $request)
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    {
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        if ($this->connection->isClosed()) {
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            $this->connect();
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        }
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        $data = $this->packer->pack($request);
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        $data = $this->connection->send($data);
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        return $this->packer->unpack($data);
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    }
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    private function getSpaceIdByName($spaceName)
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    {
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        $schema = $this->getSpace(Space::VSPACE);
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        $response = $schema->select([$spaceName], Index::SPACE_NAME);
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        $data = $response->getData();
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        if (empty($data)) {
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            throw new Exception("Space '$spaceName' does not exist");
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        }
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        return $data[0][0];
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    }
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}
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