/**
* IPugin interface impl.
*
* setup() must be called before load
*
* @error 15404
* @return integer Returns error code due to the initialization.
*/
function setup()
{
//extract service configuration
$this->serviceConfig = xapp_get_option(self::SERVICE_CONF, $this);
//logging
if (xapp_is_option(self::LOGGING_CONF, $this) && $this->serviceConfig) {
$logConfig = xapp_get_option(self::SERVICE_CONF);
if ($logConfig && $logConfig[XC_CONF_LOGGER] != null) {
$this->logger = $logConfig[XC_CONF_LOGGER];
} else {
//setup logger
}
}
//cache
if (xapp_is_option(self::CACHE_CONF, $this) && $this->serviceConfig) {
$cacheConfig = xapp_get_option(self::CACHE_CONF);
if ($cacheConfig) {
$this->cache = Xapp_Cache::instance($this->CACHE_NS, "file", array(Xapp_Cache_Driver_File::PATH => xapp_get_option(XC_CONF_CACHE_PATH, $this->serviceConfig), Xapp_Cache_Driver_File::CACHE_EXTENSION => $this->CACHE_NS, Xapp_Cache_Driver_File::DEFAULT_EXPIRATION => 200));
}
}
}
/**
* factory method for creating cache driver instances. this method is the only way, besides the instance method,
* to create cache driver instances since concrete driver classes dont permit instantiation directly.
* first parameter expects the driver string like "file" or "apc" and the second parameter
* an driver options xapp array or option object. the third parameter can contain a namespace
* identifier when if set will allow for unlimited instance creation. will throw error if
* the driver does not exist
*
* @error 15302
* @param string $driver expects the cache driver string
* @param null|mixed $options expects xapp option array or object
* @param null|string $ns expects optional ns string identifier
* @return Xapp_Cache_Driver concrete xapp cache driver implementation instance
* @throws Xapp_Cache_Exception
*/
public static function factory($driver, $options = null, $ns = null)
{
$class = __CLASS__ . '_Driver_' . ucfirst(trim((string) $driver));
if (class_exists($class, true)) {
if ($ns !== null) {
return self::$_instance = self::$_instances[trim((string) $ns)] = new $class($options);
} else {
return self::$_instance = new $class($options);
}
} else {
throw new Xapp_Cache_Exception("cache driver: {$driver} does not exist", 1530201);
}
}
/**
* invoke class/method or function via rpc or outside rpc functionality for testing purposes. the first parameter
* thus can be a valid callable when used outside of rpc service or the internal array containing all call parameters
* from concrete rpc server implementation. throws exception with extended exception properties if in debug mode.
* summarizes all caught applications exceptions when invoking callable to a general application error so sensitive
* error messages can be omitted. when invoked with named parameters will reorder parameters to reflect
* order of method/function call since call_user_func_array needs to pass parameter named or unnamed in
* correct order
*
* @error 14211
* @param array|callable $call expects either valid callable or array with all call parameters
* @param array $params expects the parameters to pass to function/method to invoke
* @return mixed
* @throws Xapp_Rpc_Server_Exception
* @throws Xapp_Rpc_Fault
* @throws Exception
*/
public function invoke($call, $params = null)
{
$key = null;
$hash = null;
$class = null;
$return = null;
$result = null;
$callable = null;
try {
//invoke from outside of rpc service
if (is_callable($call)) {
$callable = $call;
if (is_array($call)) {
$call = array(null, $call[1], is_object($call[0]) ? get_class($call[0]) : $call[0]);
$class = new ReflectionClass($call[2]);
} else {
if (strpos((string) $call, '::') !== false) {
$call = array(null, substr($call, strpos($call, '::') + 2), substr($call, 0, strpos($call, '::')));
$class = new ReflectionClass($call[2]);
} else {
$call = array(null, $call, $call);
$class = null;
}
}
} else {
if (is_array($call)) {
if ($call[2] !== null) {
if (xapp_get_option(self::NAMESPACE_IDENTIFIER, $this) === NAMESPACE_SEPARATOR) {
if (strpos($call[2], NAMESPACE_SEPARATOR) !== false) {
$call[2] = NAMESPACE_SEPARATOR . str_replace(array('\\', '/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2], ' ' . NAMESPACE_SEPARATOR));
} else {
$call[2] = str_replace(array('/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2]));
}
} else {
$call[2] = str_replace(array('\\', '/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2]));
}
$key = "{$call[2]}.{$call[1]}";
try {
if (array_key_exists(strtolower($call[2]), $this->_objects)) {
$class = new ReflectionClass($this->_objects[strtolower($call[2])]);
} else {
$class = new ReflectionClass($call[2]);
}
if ($class->hasMethod($call[1])) {
$method = $class->getMethod($call[1]);
if ($method->isPublic()) {
if ($method->isStatic()) {
$callable = array($class->getName(), $call[1]);
} else {
$callable = array(array_key_exists(strtolower($call[2]), $this->_objects) ? $this->_objects[strtolower($call[2])] : $class->newInstance(), $call[1]);
}
} else {
Xapp_Rpc_Fault::t("method: {$call[1]} of class: {$call[2]} is not public", array(1421105, -32601));
}
} else {
Xapp_Rpc_Fault::t("method: {$call[1]} of class: {$call[2]} does not exist", array(1421104, -32601));
}
} catch (ReflectionException $e) {
throw new Xapp_Rpc_Server_Exception(xapp_sprintf(_("unable to initialize class due to reflection error: %d, %s"), $e->getCode(), $e->getMessage()), 1421103);
}
} else {
$key = $call[1];
$callable = $call[1];
}
} else {
throw new Xapp_Rpc_Server_Exception(_("invalid callable passed to invoke method"), 1421106);
}
}
if (is_callable($callable)) {
if (is_array($callable) && is_object($callable[0])) {
$this->_class = $callable[0];
}
if (!is_null($key) && !is_null($params) && array_values((array) $params) !== (array) $params) {
$tmp = array();
$arr = (array) $params;
$map = $this->smd()->get($key);
if (!is_null($map)) {
foreach ((array) $map->parameters as $p) {
if (array_key_exists($p->name, $arr)) {
$tmp[$p->name] = $arr[$p->name];
}
}
}
$params = $tmp;
$tmp = null;
$arr = null;
$map = null;
}
if (!is_null($key) && xapp_is_option(self::CACHE, $this) && preg_match(Xapp_Rpc::regex(xapp_get_option(self::CACHE_SERVICES, $this)), $call[0])) {
if (xapp_get_option(self::CACHE_BY_TRANSACTION_ID, $this)) {
$hash = $call[3]['id'];
} else {
$hash = Xapp_Cache::hash(serialize($call[0]) . serialize($params));
}
if (xapp_get_option(self::CACHE, $this)->has($hash)) {
return xapp_get_option(self::CACHE, $this)->get($hash);
}
}
if (!xapp_get_option(self::PARAMS_AS_ARRAY, $this)) {
$params = xapp_array_to_object($params);
}
xapp_event('xapp.rpc.server.beforeCall', array($this, array(&$result, $call[1], $call[2], $params)));
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onBeforeCall($this, array(&$result, $call[1], $call[2], &$params));
}
if ($return !== false && $result === null) {
$this->response()->result($result = call_user_func_array($callable, (array) $params));
}
if ($return === false && $this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onAbort($this, array(&$result, $call[1], $call[2], &$params));
} else {
$return = null;
}
if ($return !== null) {
$result = $return;
}
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onAfterCall($this, array(&$result));
}
if ($return !== null) {
$result = $return;
}
xapp_event('xapp.rpc.server.afterCall', array($this, array(&$result)));
if (!is_null($hash)) {
if (!xapp_get_option(self::CACHE, $this)->has($hash)) {
xapp_get_option(self::CACHE, $this)->set($hash, $result);
}
}
$callable = null;
$return = null;
$params = null;
$class = null;
$hash = null;
return $result;
} else {
throw new Xapp_Rpc_Server_Exception(_("unable to invoke function since first argument is not a callable"), 1421102);
}
} catch (Exception $e) {
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$error = $this->getClass()->onError($this, $e);
if ($error instanceof Exception) {
$e = $error;
$error = null;
}
}
if (!$e instanceof Xapp_Rpc_Server_Exception) {
$data = array();
$debug = xapp_get_option(self::DEBUG, $this);
if (is_bool($debug) && $debug === true || is_int($debug) && $debug === 1) {
$data['message'] = $e->getMessage();
$data['code'] = $e->getCode();
$data['class'] = get_class($e);
$data['file'] = $e->getFile();
$data['line'] = $e->getLine();
if ($e instanceof ErrorException) {
$data['severity'] = $e->getSeverity();
}
if ($e instanceof Xapp_Rpc_Fault && $e->hasData()) {
$data['data'] = $e->getData();
}
} else {
if (is_int($debug) && $debug === 2) {
$data['message'] = $e->getMessage();
$data['code'] = $e->getCode();
if ($e instanceof ErrorException) {
$data['severity'] = $e->getSeverity();
}
if ($e instanceof Xapp_Rpc_Fault && $e->hasData()) {
$data['data'] = $e->getData();
}
}
}
if (xapp_is_option(self::APPLICATION_ERROR, $this)) {
if ($e instanceof Xapp_Rpc_Fault && $e->hasFault()) {
$f = $e->getFault();
} else {
$f = -32500;
}
if (($code = (int) $e->getCode()) !== 0) {
Xapp_Rpc_Fault::t(xapp_sprintf("application error: %d", array($code)), array(1421101, $f), XAPP_ERROR_IGNORE, $data);
} else {
Xapp_Rpc_Fault::t("application error", array(1421101, $f), XAPP_ERROR_IGNORE, $data);
}
} else {
if ((bool) $debug) {
Xapp_Rpc_Fault::t($e->getMessage(), $e->getCode(), XAPP_ERROR_IGNORE, $data);
} else {
throw $e;
}
}
} else {
throw $e;
}
}
return null;
}
private function setup()
{
$this->serviceConfig = xapp_get_option(self::SERVICE_CONF, $this);
//cache
if (xapp_is_option(self::CACHE_CONF, $this) && $this->serviceConfig) {
$cacheConfig = xapp_get_option(self::CACHE_CONF);
if ($cacheConfig) {
$this->cache = Xapp_Cache::instance("PluginManager", "file", array(Xapp_Cache_Driver_File::PATH => xapp_get_option(XC_CONF_CACHE_PATH, $this->serviceConfig), Xapp_Cache_Driver_File::CACHE_EXTENSION => "pmmanager", Xapp_Cache_Driver_File::DEFAULT_EXPIRATION => 200));
}
}
}
/**
* xapp cache short cut function for using the caching capabilities of xapp in a intuitive way. this function is
* expecting at least one cache instance create with xapp cache class in order to work. if xapp cache class is
* not xapped and has no instance registered will return null or false depending on get or set way of calling.
* this function will combines the three stages of caching has, get, set. check if a cache entry exists, get the
* entry and if not set it. the shortcut function will work with or without namespace identifier. if you want to
* use the current instance use the function like:
* <code>
* //set
* xapp_cache($key, $value);
* //get
* xapp_cache($key);
* </code>
*
* if you want to refer to your instances create with namespace identifiers do it like:
* <code>
* //set
* xapp_cache('ns1', $key, $value);
* //get
* xapp_cache('ns1', $key);
* </code>
*
* the third parameter is the crucial one. if you use anything other then null as value will set cache values
* regardless of your intention! the best way to use the cache short cut function is like:
* <code>
* //check and get
* if(($result = xapp_cache('ns1', 'test')) === false)
* {
* //set since not cached yet
* $result = xapp_cache('ns1', 'test', array("foo" => "bar"), 60);
* }
* </code>
*
* you can also use the shortcut function to purge/remove all expired cache items calling the function like:
* <code>
* xapp_cache();
* </code>
*
* overwrite like:
* <code>
* function xapp_cache($with, $key, $value = null, $lifetime = null)
* {
* //your custom code here
* }
* </code>
*
* @param null|string $with expects a namespace identifier or null for targeting current instance
* @param string $key expects the cache key string
* @param null|mixed $value expects the to be cached value when setting
* @param null|int $lifetime expects the optional lifetime value
* @return null|mixed
*/
function xapp_cache($with, $key, $value = null, $lifetime = null)
{
if (xapped() && xapped('Xapp_Cache', false)) {
if (Xapp_Cache::hasInstance()) {
if (func_num_args() > 0) {
if (func_num_args() >= 3 && $value !== null) {
Xapp_Cache::set($with, $key, $value, $lifetime);
return $value;
} else {
return Xapp_Cache::get($with, $key, func_num_args() === 2 ? false : null);
}
} else {
return Xapp_Cache::purge();
}
}
}
return func_num_args() === 2 ? false : null;
}
