/**
* Starts monitoring.
* @param string class/interface type
* @return void
*/
public function monitor($type)
{
fixNamespace($type);
$this->monitors[$type] = NULL;
$this->lookup($type, FALSE);
// call attached()
}
/**
* Iterates over a components.
* @param bool recursive?
* @param string class types filter
* @return \ArrayIterator
*/
public final function getComponents($deep = FALSE, $filterType = NULL)
{
$iterator = new RecursiveComponentIterator($this->components);
if ($deep) {
$deep = $deep > 0 ? RecursiveIteratorIterator::SELF_FIRST : RecursiveIteratorIterator::CHILD_FIRST;
$iterator = new RecursiveIteratorIterator($iterator, $deep);
}
if ($filterType) {
/**/
fixNamespace($filterType);
/**/
$iterator = new InstanceFilterIterator($iterator, $filterType);
}
return $iterator;
}
/**
* Returns mailer.
* @return IMailer
*/
public function getMailer()
{
if ($this->mailer === NULL) {
fixNamespace(self::$defaultMailer);
$this->mailer = is_object(self::$defaultMailer) ? self::$defaultMailer : new self::$defaultMailer();
}
return $this->mailer;
}
/**
* Sends e-mail.
* @param IMailer
* @return void
*/
public function send(IMailer $mailer = NULL)
{
if ($mailer === NULL) {
fixNamespace(self::$defaultMailer);
$mailer = is_object(self::$defaultMailer) ? self::$defaultMailer : new self::$defaultMailer();
}
$mailer->send($this->build());
}
/**
* Gets the service object of the specified type.
* @param string service name
* @param array options in case service is not singleton
* @return mixed
*/
public function getService($name, array $options = NULL)
{
if (!is_string($name) || $name === '') {
throw new InvalidArgumentException("Service name must be a non-empty string, " . gettype($name) . " given.");
}
$lower = strtolower($name);
if (isset($this->registry[$lower])) {
// instantiated singleton
if ($options) {
throw new InvalidArgumentException("Service named '{$name}' is singleton and therefore can not have options.");
}
return $this->registry[$lower];
} elseif (isset($this->factories[$lower])) {
list($factory, $singleton, $defOptions) = $this->factories[$lower];
if ($singleton && $options) {
throw new InvalidArgumentException("Service named '{$name}' is singleton and therefore can not have options.");
} elseif ($defOptions) {
$options = $options ? $options + $defOptions : $defOptions;
}
if (is_string($factory) && strpos($factory, ':') === FALSE) {
// class name
/**/
fixNamespace($factory);
/**/
if (!class_exists($factory)) {
throw new AmbiguousServiceException("Cannot instantiate service '{$name}', class '{$factory}' not found.");
}
$service = new $factory();
if ($options && method_exists($service, 'setOptions')) {
$service->setOptions($options);
// TODO: better!
}
} else {
// factory callback
/**/
fixCallback($factory);
/**/
if (!is_callable($factory)) {
$able = is_callable($factory, TRUE, $textual);
throw new AmbiguousServiceException("Cannot instantiate service '{$name}', handler '{$textual}' is not " . ($able ? 'callable.' : 'valid PHP callback.'));
}
$service = call_user_func($factory, $options);
if (!is_object($service)) {
$able = is_callable($factory, TRUE, $textual);
throw new AmbiguousServiceException("Cannot instantiate service '{$name}', value returned by '{$textual}' is not object.");
}
}
if ($singleton) {
$this->registry[$lower] = $service;
unset($this->factories[$lower]);
}
return $service;
}
if ($this->parent !== NULL) {
return $this->parent->getService($name, $options);
} else {
throw new InvalidStateException("Service '{$name}' not found.");
}
}
/**
* Gets the service object of the specified type.
* @param string service name
* @param bool throw exception if service doesn't exist?
* @return mixed
*/
public function getService($name, $need = TRUE)
{
if (!is_string($name) || $name === '') {
throw new InvalidArgumentException("Service name must be a non-empty string, " . gettype($name) . " given.");
}
$lower = strtolower($name);
if (isset($this->registry[$lower])) {
return $this->registry[$lower];
} elseif (isset($this->factories[$lower])) {
$service = $this->factories[$lower];
if (is_string($service)) {
if (substr($service, -2) === '()') {
// trick to pass callback as string
$service = substr($service, 0, -2);
} else {
fixNamespace($service);
if (!class_exists($service)) {
throw new AmbiguousServiceException("Cannot instantiate service '{$name}', class '{$service}' not found.");
}
return $this->registry[$lower] = new $service();
}
}
fixCallback($service);
if (!is_callable($service)) {
$able = is_callable($service, TRUE, $textual);
throw new AmbiguousServiceException("Cannot instantiate service '{$name}', handler '{$textual}' is not " . ($able ? 'callable.' : 'valid PHP callback.'));
}
return $this->registry[$lower] = call_user_func($service);
}
if ($this->parent !== NULL) {
return $this->parent->getService($name, $need);
} elseif ($need) {
throw new InvalidStateException("Service '{$name}' not found.");
} else {
return NULL;
}
}
/**
* Stops monitoring.
* @param string class/interface type
* @return void
*/
public function unmonitor($type)
{
fixNamespace($type);
unset($this->monitors[$type]);
}
