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<?php
namespace Icinga\Module\Businessprocess;
use Icinga\Exception\ProgrammingError;
use Icinga\Web\Session\SessionNamespace;
class Simulation
{
const DEFAULT_SESSION_KEY = 'bp-simulations';
/**
* @var SessionNamespace
*/
protected $session;
/**
* @var string
*/
protected $sessionKey;
/**
* @var array
*/
protected $simulations = array();
/**
* Simulation constructor.
* @param array $simulations
*/
public function __construct(array $simulations = array())
{
$this->simulations = $simulations;
}
/**
* @param array $simulations
* @return static
*/
public static function create(array $simulations = array())
{
return new static($simulations);
}
/**
* @param SessionNamespace $session
* @param null $sessionKey
* @return $this
*/
public static function fromSession(SessionNamespace $session, $sessionKey = null)
{
return static::create()
->setSessionKey($sessionKey)
->persistToSession($session);
}
/**
* @param string $key
* @return $this
*/
public function setSessionKey($key = null)
{
if ($key === null) {
$this->sessionKey = Simulation::DEFAULT_SESSION_KEY;
} else {
$this->sessionKey = $key;
}
return $this;
}
/**
* @param SessionNamespace $session
* @return $this
*/
public function persistToSession(SessionNamespace $session)
{
$this->session = $session;
$this->simulations = $this->session->get($this->sessionKey, array());
return $this;
}
/**
* @return array
*/
public function simulations()
{
return $this->simulations;
}
/**
* @param $simulations
* @return $this
*/
protected function setSimulations($simulations)
{
$this->simulations = $simulations;
if ($this->session !== null) {
$this->session->set($this->sessionKey, $simulations);
}
return $this;
}
/**
* @return $this
*/
public function clear()
{
$this->simulations = array();
if ($this->session !== null) {
$this->session->set($this->sessionKey, array());
}
return $this;
}
/**
* @return int
*/
public function count()
{
return count($this->simulations());
}
/**
* @return bool
*/
public function isEmpty()
{
return $this->count() === 0;
}
/**
* @param $node
* @param $properties
*/
public function set($node, $properties)
{
$simulations = $this->simulations();
$simulations[$node] = $properties;
$this->setSimulations($simulations);
}
/**
* @param $name
* @return bool
*/
public function hasNode($name)
{
$simulations = $this->simulations();
return array_key_exists($name, $simulations);
}
/**
* @param $name
* @return mixed
* @throws ProgrammingError
*/
public function getNode($name)
{
$simulations = $this->simulations();
if (! array_key_exists($name, $simulations)) {
throw new ProgrammingError('Trying to access invalid node %s', $name);
}
return $simulations[$name];
}
/**
* @param $node
* @return bool
*/
public function remove($node)
{
$simulations = $this->simulations();
if (array_key_exists($node, $simulations)) {
unset($simulations[$node]);
$this->setSimulations($simulations);
return true;
} else {
return false;
}
}
}
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