ilGlobalCacheService Class Reference

Class ilGlobalCacheService. More...

Inheritance diagram for ilGlobalCacheService:

Collaboration diagram for ilGlobalCacheService:

Public Member Functions
	__construct ($service_id, $component)
	__destruct ()
	unserialize ($serialized_value)
	get ($key)
	set ($key, $serialized_value, $ttl=NULL)
	serialize ($value)
	getServiceId ()
	setServiceId ($service_id)
	setValid ($key)
	getComponent ()
	setComponent ($component)
	setInvalid ($key=NULL)
	isValid ($key)
	isActive ()
	isInstallable ()
	returnKey ($key)
	getInfo ()
	getInstallationFailureReason ()
	exists ($key)
	delete ($key)
	flush ()
	setServiceType ($service_type)
	getServiceType ()

Protected Member Functions
	saveValid ()
	readValid ()
	getActive ()
	getInstallable ()
	getMemoryLimit ()
	getMinMemory ()
	checkMemory ()

Protected Attributes
	$current_time = 0
	$valid_keys = array()
	$service_id = ''
	$component = ''
	$service_type = ilGlobalCache::TYPE_STATIC
	$valid_key_hash = ''

Static Protected Attributes
static	$active = array()
static	$installable = array()

Detailed Description

Class ilGlobalCacheService.

Author

Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Version

1.0.0

Definition at line 9 of file class.ilGlobalCacheService.php.

Constructor & Destructor Documentation

__construct()

ilGlobalCacheService::__construct	(		$service_id,
			$component
	)

Parameters

$service_id
$component

Definition at line 49 of file class.ilGlobalCacheService.php.

References $component, $service_id, checkMemory(), getActive(), getInstallable(), readValid(), setComponent(), and setServiceId().

                                                             {
                $this->setComponent($component);
                $this->setServiceId($service_id);
                self::$active[get_called_class()] = $this->getActive();
                self::$installable[get_called_class()] = ($this->getInstallable() AND $this->checkMemory());
                //              $this->current_time = time();
                $this->readValid();
        }

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__destruct()

ilGlobalCacheService::__destruct

(

)

Definition at line 59 of file class.ilGlobalCacheService.php.

References saveValid().

                                     {
                $this->saveValid();
        }

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Member Function Documentation

checkMemory()

ilGlobalCacheService::checkMemory ( )

protected

Returns

bool

Definition at line 272 of file class.ilGlobalCacheService.php.

References exists(), flush(), getMemoryLimit(), and getMinMemory().

Referenced by __construct(), and getInstallationFailureReason().

                                         {
                $matches = array();
                $memory_limit = $this->getMemoryLimit();
                if (preg_match('/([0-9]*)([M|K])/uism', $memory_limit, $matches)) {
                        switch ($matches[2]) {
                                case 'M':
                                        $memory_limit = $matches[1] * 1024 * 1024; // nnnM -> nnn MB
                                        break;
                                case 'K':
                                        $memory_limit = $matches[1] * 1024; // nnnK -> nnn KB
                                        break;
                        }
                } else {
                        $memory_limit = $memory_limit * 1024 * 1024; // nnnM -> nnn MB
                }

                return ($memory_limit >= $this->getMinMemory() * 1024 * 1024);
        }

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delete()

ilGlobalCacheService::delete (   $key )

abstract

Parameters

$key

Returns

bool

exists()

ilGlobalCacheService::exists (   $key )

abstract

Parameters

$key

Returns

bool

Referenced by checkMemory().

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flush()

ilGlobalCacheService::flush ( )

abstract

Returns

mixed

Referenced by checkMemory().

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get()

ilGlobalCacheService::get (   $key )

abstract

Parameters

$key

Returns

mixed

getActive()

ilGlobalCacheService::getActive ( )

abstractprotected

Returns

bool

Referenced by __construct(), and readValid().

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getComponent()

ilGlobalCacheService::getComponent

(

)

Returns

string

Definition at line 167 of file class.ilGlobalCacheService.php.

References $component.

Referenced by ilStaticCache\delete(), ilStaticCache\exists(), ilStaticCache\get(), ilApc\getInfo(), returnKey(), and ilStaticCache\set().

                                       {
                return $this->component;
        }

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getInfo()

ilGlobalCacheService::getInfo

(

)

Returns

array

Definition at line 233 of file class.ilGlobalCacheService.php.

                                  {
                return array();
        }

getInstallable()

ilGlobalCacheService::getInstallable ( )

abstractprotected

Returns

bool

Referenced by __construct(), getInstallationFailureReason(), and readValid().

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getInstallationFailureReason()

ilGlobalCacheService::getInstallationFailureReason

(

)

Returns

string

Definition at line 241 of file class.ilGlobalCacheService.php.

References checkMemory(), getInstallable(), and getMinMemory().

                                                       {
                if (! $this->getInstallable()) {
                        return 'Not installed';
                }
                if (! $this->checkMemory()) {
                        return 'Not enough Cache-Memory, set to at least ' . $this->getMinMemory() . 'M';
                }

                return 'Unknown reason';
        }

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getMemoryLimit()

ilGlobalCacheService::getMemoryLimit ( )

protected

Returns

int

Definition at line 256 of file class.ilGlobalCacheService.php.

Referenced by checkMemory().

                                            {
                return 9999;
        }

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getMinMemory()

ilGlobalCacheService::getMinMemory ( )

protected

Returns

int

Definition at line 264 of file class.ilGlobalCacheService.php.

Referenced by checkMemory(), and getInstallationFailureReason().

                                          {
                return 0;
        }

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getServiceId()

ilGlobalCacheService::getServiceId

(

)

Returns

string

Definition at line 140 of file class.ilGlobalCacheService.php.

References $service_id.

Referenced by ilApc\getInfo(), and returnKey().

                                       {
                return $this->service_id;
        }

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getServiceType()

ilGlobalCacheService::getServiceType

(

)

Returns

int

Definition at line 325 of file class.ilGlobalCacheService.php.

References $service_type.

                                         {
                return $this->service_type;
        }

isActive()

ilGlobalCacheService::isActive

(

)

Returns

bool

Definition at line 205 of file class.ilGlobalCacheService.php.

Referenced by ilXcache\getInfo(), readValid(), and saveValid().

                                   {
                return self::$active[get_called_class()];
        }

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isInstallable()

ilGlobalCacheService::isInstallable

(

)

Returns

bool

Definition at line 213 of file class.ilGlobalCacheService.php.

                                        {
                return self::$installable[get_called_class()];
        }

isValid()

ilGlobalCacheService::isValid

(

$key

)

Parameters

$key

Returns

bool

Definition at line 197 of file class.ilGlobalCacheService.php.

                                      {
                return isset($this->valid_keys[$key]);
        }

readValid()

ilGlobalCacheService::readValid ( )

protected

Returns

bool

set self::$valid_keys from GlobalCache

Definition at line 83 of file class.ilGlobalCacheService.php.

References getActive(), getInstallable(), isActive(), serialize(), and unserialize().

Referenced by __construct().

                                       {
                if ($this->isActive()) {
                        $this->valid_keys = $this->unserialize($this->get('valid_keys'));
                        $this->valid_key_hash = md5(serialize($this->valid_keys));
                }
        }

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returnKey()

ilGlobalCacheService::returnKey

(

$key

)

Parameters

$key

Returns

string

Definition at line 223 of file class.ilGlobalCacheService.php.

References getComponent(), and getServiceId().

Referenced by ilXcache\delete(), ilApc\delete(), ilMemcache\delete(), ilXcache\exists(), ilApc\exists(), ilMemcache\exists(), ilXcache\get(), ilApc\get(), ilMemcache\get(), ilXcache\set(), ilApc\set(), and ilMemcache\set().

                                        {
                return $str = $this->getServiceId() . '_' . $this->getComponent() . '_' . $key;

                return str_replace('/', '_', $str);
        }

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saveValid()

ilGlobalCacheService::saveValid ( )

protected

Returns

bool

save self::$valid_keys to GlobalCache

Definition at line 69 of file class.ilGlobalCacheService.php.

References isActive(), and serialize().

Referenced by __destruct().

                                       {
                if ($this->isActive()) {
                        if ($this->valid_key_hash != md5(serialize($this->valid_keys))) {
                                $this->set('valid_keys', $this->serialize($this->valid_keys));
                        }
                }
        }

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serialize()

ilGlobalCacheService::serialize (   $value )

abstract

Parameters

$value

Returns

mixed

Referenced by readValid(), and saveValid().

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set()

ilGlobalCacheService::set (   $key,   $serialized_value,   $ttl = NULL  )

abstract

Parameters

	$key
	$serialized_value
null	$ttl

Returns

bool

setComponent()

ilGlobalCacheService::setComponent

(

$component

)

Parameters

string

$component

Definition at line 175 of file class.ilGlobalCacheService.php.

References $component.

Referenced by __construct().

                                                 {
                $this->component = $component;
        }

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setInvalid()

ilGlobalCacheService::setInvalid

(

$key = NULL

)

Parameters

null

$key

Definition at line 183 of file class.ilGlobalCacheService.php.

                                                {
                if ($key) {
                        unset($this->valid_keys[$key]);
                } else {
                        unset($this->valid_keys);
                }
        }

setServiceId()

ilGlobalCacheService::setServiceId

(

$service_id

)

Parameters

string

$service_id

Definition at line 148 of file class.ilGlobalCacheService.php.

References $service_id.

Referenced by __construct().

                                                  {
                $this->service_id = $service_id;
        }

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setServiceType()

ilGlobalCacheService::setServiceType

(

$service_type

)

Parameters

int

$service_type

Definition at line 317 of file class.ilGlobalCacheService.php.

References $service_type.

                                                      {
                $this->service_type = $service_type;
        }

setValid()

ilGlobalCacheService::setValid

(

$key

)

Parameters

$key

Returns

bool|void

Definition at line 158 of file class.ilGlobalCacheService.php.

                                       {
                $this->valid_keys[$key] = true;
                //              $this->valid_keys[$key] = time();
        }

unserialize()

ilGlobalCacheService::unserialize (   $serialized_value )

abstract

Parameters

$serialized_value

Returns

mixed

Referenced by readValid().

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Field Documentation

$active

ilGlobalCacheService::$active = array()

staticprotected

Definition at line 22 of file class.ilGlobalCacheService.php.

Referenced by ilXcache\getActive().

$component

ilGlobalCacheService::$component = ''

protected

Definition at line 34 of file class.ilGlobalCacheService.php.

Referenced by ilMemcache\__construct(), ilShm\__construct(), __construct(), getComponent(), and setComponent().

$current_time

ilGlobalCacheService::$current_time = 0

protected

Definition at line 14 of file class.ilGlobalCacheService.php.

$installable

ilGlobalCacheService::$installable = array()

staticprotected

Definition at line 26 of file class.ilGlobalCacheService.php.

$service_id

ilGlobalCacheService::$service_id = ''

protected

Definition at line 30 of file class.ilGlobalCacheService.php.

Referenced by ilMemcache\__construct(), ilShm\__construct(), __construct(), getServiceId(), and setServiceId().

$service_type

ilGlobalCacheService::$service_type = ilGlobalCache::TYPE_STATIC

protected

Definition at line 38 of file class.ilGlobalCacheService.php.

Referenced by getServiceType(), and setServiceType().

$valid_key_hash

ilGlobalCacheService::$valid_key_hash = ''

protected

Definition at line 42 of file class.ilGlobalCacheService.php.

$valid_keys

ilGlobalCacheService::$valid_keys = array()

protected

Definition at line 18 of file class.ilGlobalCacheService.php.

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The documentation for this class was generated from the following file:

• Services/GlobalCache/classes/class.ilGlobalCacheService.php