ilGlobalCache Class Reference

Class ilGlobalCache. More...

Collaboration diagram for ilGlobalCache:

Public Member Functions
	isActive ()
	isValid ($key)
	isInstallable ()
	isCacheServiceInstallable ()
	getInstallationFailureReason ()
	exists ($key)
	set ($key, $value, $ttl=null)
	get ($key)
	delete ($key)
	flush ($complete=false)
	getInfo ()
	setComponent ($component)
	getComponent ()
	setActive ($active)
	getActive ()
	setServiceType ($service_type)
	getServiceType ()

Static Public Member Functions
static	setup (ilGlobalCacheSettings $ilGlobalCacheSettings)
static	getInstance ($component)
static	log ($message, $log_level)
static	getAllInstallableTypes ()
static	getAllTypes ($only_available=true)
static	lookupServiceClassName ($service_type)
static	getSettings ()
static	setSettings ($settings)
static	getActiveComponents ()
static	setActiveComponents ($active_components)
static	getAvailableComponents ()
static	setAvailableComponents ($available_components)

Data Fields
const	MSG = 'Global Cache not active, can not access cache'
const	ACTIVE = true
const	TYPE_STATIC = 0
const	TYPE_XCACHE = 1
const	TYPE_MEMCACHED = 2
const	TYPE_APC = 3
const	TYPE_FALLBACK = self::TYPE_STATIC
const	COMP_CLNG = 'clng'
const	COMP_OBJ_DEF = 'obj_def'
const	COMP_TEMPLATE = 'tpl'
const	COMP_ILCTRL = 'ilctrl'
const	COMP_PLUGINS = 'plugins'
const	COMP_COMPONENT = 'comp'
const	COMP_RBAC_UA = 'rbac_ua'
const	COMP_EVENTS = 'events'
const	COMP_TPL_BLOCKS = 'tpl_blocks'
const	COMP_TPL_VARIABLES = 'tpl_variables'
const	COMP_GLOBAL_SCREEN = 'global_screen'

Protected Member Functions
	__construct ($service_type)
	checkSettings ()

Static Protected Member Functions
static	generateServiceId ()

Protected Attributes
	$global_cache
	$component
	$active = true
	$service_type = ilGlobalCache::TYPE_STATIC

Static Protected Attributes
static	$types
static	$available_types
static	$active_components = array()
static	$available_components
static	$type_per_component = array()
static	$unique_service_id = null
static	$instances
static	$settings
static	$active_cache = array()

Detailed Description

Class ilGlobalCache.

Author

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

Version

1.0.0

Definition at line 13 of file class.ilGlobalCache.php.

Constructor & Destructor Documentation

__construct()

ilGlobalCache::__construct (   $service_type )

protected

Parameters

$service_type

Definition at line 132 of file class.ilGlobalCache.php.

    {
        $this->checkSettings();
        self::generateServiceId();
        $this->setServiceType($service_type);
    }

References $service_type, checkSettings(), generateServiceId(), and setServiceType().

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Member Function Documentation

checkSettings()

ilGlobalCache::checkSettings ( )

protected

Definition at line 154 of file class.ilGlobalCache.php.

    {
        if (!$this->getSettings() instanceof ilGlobalCacheSettings) {
            $ilGlobalCacheSettings = new ilGlobalCacheSettings();
            $this->setSettings($ilGlobalCacheSettings);
        }
    }

References getSettings(), and setSettings().

Referenced by __construct().

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delete()

ilGlobalCache::delete

(

$key

)

Parameters

$key

Returns

bool

Definition at line 394 of file class.ilGlobalCache.php.

    {
        if (!$this->isActive()) {
            return false;
        }
 
        return $this->global_cache->delete($key);
    }

References $key, and isActive().

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exists()

ilGlobalCache::exists

(

$key

)

Parameters

$key

Returns

bool

Exceptions

RuntimeException

Definition at line 338 of file class.ilGlobalCache.php.

    {
        if (!$this->global_cache->isActive()) {
            return false;
        }
 
        return $this->global_cache->exists($key);
    }

References $key.

flush()

ilGlobalCache::flush

(

$complete = false

)

Parameters

bool

$complete

Returns

bool

Exceptions

RuntimeException

Definition at line 408 of file class.ilGlobalCache.php.

    {
        if ($this->global_cache->isActive()) {
            return $this->global_cache->flush($complete);
        }
 
        return false;
    }

generateServiceId()

static ilGlobalCache::generateServiceId ( )

staticprotected

Returns

string

Definition at line 182 of file class.ilGlobalCache.php.

    {
        if (!isset(self::$unique_service_id)) {
            $rawServiceId = '_';
            if (defined('CLIENT_ID')) {
                $rawServiceId .= 'il_' . CLIENT_ID;
            }
            self::$unique_service_id = substr(md5($rawServiceId), 0, 6);
        }
    }

Referenced by __construct().

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get()

ilGlobalCache::get

(

$key

)

Parameters

$key

Returns

mixed

Exceptions

RuntimeException

Definition at line 370 of file class.ilGlobalCache.php.

    {
        if (!$this->isActive()) {
            return false;
        }
        $unserialized_return = $this->global_cache->unserialize($this->global_cache->get($key));
        if ($unserialized_return) {
            $service_name = ' [' . self::lookupServiceClassName($this->getServiceType()) . ']';
            if ($this->global_cache->isValid($key)) {
                self::log($key . ' from component ' . $this->getComponent() . $service_name, ilGlobalCacheSettings::LOG_LEVEL_CHATTY);
 
                return $unserialized_return;
            } else {
                self::log($key . ' from component ' . $this->getComponent() . ' is invalid' . $service_name, ilGlobalCacheSettings::LOG_LEVEL_CHATTY);
            }
        }
 
        return null;
    }

References $key, getComponent(), getServiceType(), isActive(), log(), ilGlobalCacheSettings\LOG_LEVEL_CHATTY, and lookupServiceClassName().

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getActive()

ilGlobalCache::getActive

(

)

Returns

boolean

Definition at line 449 of file class.ilGlobalCache.php.

    {
        return $this->active;
    }

References $active.

Referenced by isActive().

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getActiveComponents()

static ilGlobalCache::getActiveComponents ( )

static

Returns

array

Definition at line 496 of file class.ilGlobalCache.php.

    {
        return self::$active_components;
    }

References $active_components.

getAllInstallableTypes()

static ilGlobalCache::getAllInstallableTypes ( )

static

Returns

ilGlobalCache[]

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

    {
        $types = array();
        foreach (self::getAllTypes() as $type) {
            if ($type->isCacheServiceInstallable()) {
                $types[] = $type;
            }
        }
 
        return $types;
    }

References $type, and $types.

getAllTypes()

static ilGlobalCache::getAllTypes (   $only_available = true )

static

Parameters

bool

$only_available

Returns

array

Definition at line 229 of file class.ilGlobalCache.php.

    {
        $types = array();
        foreach (self::$types as $type) {
            if ($only_available && !in_array($type, self::$available_types)) {
                continue;
            }
            $obj = new self($type);
            $obj->initCachingService();
            $types[$type] = $obj;
        }
 
        return $types;
    }

References $type, and $types.

getAvailableComponents()

static ilGlobalCache::getAvailableComponents ( )

static

Returns

array

Definition at line 512 of file class.ilGlobalCache.php.

    {
        return self::$available_components;
    }

References $available_components.

Referenced by ilGlobalCacheSettings\activateAll(), ilGlobalCacheSettings\areAllComponentActivated(), and ilGlobalCacheSettings\writeToIniFile().

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getComponent()

ilGlobalCache::getComponent

(

)

Returns

string

Definition at line 433 of file class.ilGlobalCache.php.

    {
        return $this->component;
    }

References $component.

Referenced by get(), isActive(), and set().

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getInfo()

ilGlobalCache::getInfo

(

)

Definition at line 417 of file class.ilGlobalCache.php.

    {
        return $this->global_cache->getInfo();
    }

getInstallationFailureReason()

ilGlobalCache::getInstallationFailureReason

(

)

Returns

string

Definition at line 328 of file class.ilGlobalCache.php.

    {
        return $this->global_cache->getInstallationFailureReason();
    }

getInstance()

static ilGlobalCache::getInstance (   $component )

static

Parameters

null

$component

Returns

ilGlobalCache

Definition at line 115 of file class.ilGlobalCache.php.

    {
        if (!isset(self::$instances[$component])) {
            $service_type  = self::getSettings()->getService();
            $ilGlobalCache = new self($service_type);
            $ilGlobalCache->setComponent($component);
            $ilGlobalCache->initCachingService();
 
            self::$instances[$component] = $ilGlobalCache;
        }
 
        return self::$instances[$component];
    }

References $component, $service_type, and getSettings().

Referenced by ilCachedComponentData\__construct(), ilCachedCtrl\__construct(), arConnectorCache\__construct(), ilCachedComponentData\__destruct(), ILIAS\GlobalScreen\Collector\CoreStorageFacade\cache(), ilCachedComponentData\flush(), ilCachedCtrl\flush(), ilGlobalCacheQueryWrapper\get(), ilGSIdentificationStorage\getCache(), ilGSProviderStorage\getCache(), ilMMCustomItemStorage\getCache(), ilMMItemStorage\getCache(), ilMMItemTranslationStorage\getCache(), ilMMTypeActionStorage\getCache(), HTML_Template_IT\getFile(), ilCachedComponentData\getInstance(), ilCachedCtrl\getInstance(), HTML_Template_IT\init(), ilAppEventHandler\initListeners(), ilCachedCtrl\isActive(), and ilObjectDefinition\readDefinitionData().

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getServiceType()

ilGlobalCache::getServiceType

(

)

Returns

int

Definition at line 468 of file class.ilGlobalCache.php.

    {
        if ($this->global_cache instanceof ilGlobalCacheService) {
            return $this->global_cache->getServiceType();
        }
 
        return $this->service_type;
    }

References $service_type.

Referenced by get().

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getSettings()

static ilGlobalCache::getSettings ( )

static

Returns

ilGlobalCacheSettings

Definition at line 480 of file class.ilGlobalCache.php.

    {
        return (self::$settings instanceof ilGlobalCacheSettings ? self::$settings : new ilGlobalCacheSettings());
    }

Referenced by checkSettings(), and getInstance().

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isActive()

ilGlobalCache::isActive

(

)

Returns

bool

Definition at line 274 of file class.ilGlobalCache.php.

    {
        $c = $this->getComponent();
        if (isset(self::$active_cache[$c]) && self::$active_cache[$c] !== null) {
            return self::$active_cache[$c];
        }
        if (!self::ACTIVE) {
            self::$active_cache[$c] = false;
 
            return false;
        }
        if (!$this->getActive()) {
            self::log($c . '-wrapper is inactive...', ilGlobalCacheSettings::LOG_LEVEL_CHATTY);
            self::$active_cache[$c] = false;
 
            return false;
        }
 
        $isActive = $this->global_cache->isActive();
        self::log('component ' . $c . ', service is active: '
            . ($isActive ? 'yes' : 'no'), ilGlobalCacheSettings::LOG_LEVEL_CHATTY);
        self::$active_cache[$c] = $isActive;
 
        return $isActive;
    }

References $c, getActive(), getComponent(), log(), and ilGlobalCacheSettings\LOG_LEVEL_CHATTY.

Referenced by delete(), get(), and set().

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isCacheServiceInstallable()

ilGlobalCache::isCacheServiceInstallable

(

)

Returns

bool

Definition at line 320 of file class.ilGlobalCache.php.

    {
        return $this->global_cache->isInstallable();
    }

isInstallable()

ilGlobalCache::isInstallable

(

)

Returns

bool

Definition at line 312 of file class.ilGlobalCache.php.

    {
        return count(self::getAllInstallableTypes()) > 0;
    }

isValid()

ilGlobalCache::isValid

(

$key

)

Parameters

$key

Returns

bool

Definition at line 304 of file class.ilGlobalCache.php.

    {
        return $this->global_cache->isValid($key);
    }

References $key.

log()

static ilGlobalCache::log (   $message,   $log_level  )

static

Parameters

$message

Definition at line 165 of file class.ilGlobalCache.php.

    {
        if ($log_level <= self::getSettings()->getLogLevel()) {
            global $DIC;
            $ilLog     = $DIC['ilLog'];
            $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
            $function  = $backtrace[1]['function'];
            $class     = $backtrace[1]['class'];
            if ($ilLog instanceof ilComponentLogger) {
                $ilLog->alert($class . '::' . $function . '(): ' . $message);
            }
        }
    }

References $DIC, $ilLog, and $message.

Referenced by get(), HTML_Template_IT\init(), isActive(), set(), and ilGlobalCacheSettings\writeToIniFile().

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lookupServiceClassName()

static ilGlobalCache::lookupServiceClassName (   $service_type )

static

Parameters

$service_type

Returns

string

Definition at line 248 of file class.ilGlobalCache.php.

    {
        switch ($service_type) {
            case self::TYPE_APC:
                return 'ilApc';
                break;
            case self::TYPE_MEMCACHED:
                return 'ilMemcache';
                break;
            case self::TYPE_XCACHE:
                return 'ilXcache';
                break;
            default:
                return 'ilStaticCache';
                break;
        }
    }

References $service_type, TYPE_APC, TYPE_MEMCACHED, and TYPE_XCACHE.

Referenced by ilGlobalCacheSettings\__toString(), and get().

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set()

ilGlobalCache::set	(		$key,
			$value,
			$ttl = null
	)

Parameters

	$key
	$value
null	$ttl

Returns

bool

Exceptions

RuntimeException

Definition at line 354 of file class.ilGlobalCache.php.

    {
        if (!$this->isActive()) {
            return false;
        }
        self::log($key . ' set in component ' . $this->getComponent(), ilGlobalCacheSettings::LOG_LEVEL_CHATTY);
        $this->global_cache->setValid($key);
 
        return $this->global_cache->set($key, $this->global_cache->serialize($value), $ttl);
    }

References $key, getComponent(), isActive(), log(), and ilGlobalCacheSettings\LOG_LEVEL_CHATTY.

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setActive()

ilGlobalCache::setActive

(

$active

)

Parameters

boolean

$active

Definition at line 441 of file class.ilGlobalCache.php.

    {
        $this->active = $active;
    }

References $active.

setActiveComponents()

static ilGlobalCache::setActiveComponents (   $active_components )

static

Parameters

array

$active_components

Definition at line 504 of file class.ilGlobalCache.php.

    {
        self::$active_components = $active_components;
    }

References $active_components.

Referenced by setup().

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setAvailableComponents()

static ilGlobalCache::setAvailableComponents (   $available_components )

static

Parameters

array

$available_components

Definition at line 520 of file class.ilGlobalCache.php.

    {
        self::$available_components = $available_components;
    }

References $available_components.

setComponent()

ilGlobalCache::setComponent

(

$component

)

Parameters

string

$component

Definition at line 425 of file class.ilGlobalCache.php.

    {
        $this->component = $component;
    }

References $component.

setServiceType()

ilGlobalCache::setServiceType

(

$service_type

)

Parameters

int

$service_type

Definition at line 457 of file class.ilGlobalCache.php.

    {
        if ($this->global_cache instanceof ilGlobalCacheService) {
            $this->global_cache->setServiceType($service_type);
        }
        $this->service_type = $service_type;
    }

References $service_type.

Referenced by __construct().

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setSettings()

static ilGlobalCache::setSettings (   $settings )

static

Parameters

ilGlobalCacheSettings

$settings

Definition at line 488 of file class.ilGlobalCache.php.

    {
        self::$settings = $settings;
    }

References $settings.

Referenced by checkSettings(), and setup().

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setup()

static ilGlobalCache::setup ( ilGlobalCacheSettings  $ilGlobalCacheSettings )

static

Parameters

ilGlobalCacheSettings

$ilGlobalCacheSettings

Definition at line 105 of file class.ilGlobalCache.php.

    {
        self::setSettings($ilGlobalCacheSettings);
        self::setActiveComponents($ilGlobalCacheSettings->getActivatedComponents());
    }

References ilGlobalCacheSettings\getActivatedComponents(), setActiveComponents(), and setSettings().

Referenced by ilInitialisation\initClientIniFile().

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Field Documentation

$active

ilGlobalCache::$active = true

protected

Definition at line 92 of file class.ilGlobalCache.php.

Referenced by getActive(), and setActive().

$active_cache

ilGlobalCache::$active_cache = array()

staticprotected

Definition at line 269 of file class.ilGlobalCache.php.

$active_components

ilGlobalCache::$active_components = array()

staticprotected

Definition at line 54 of file class.ilGlobalCache.php.

Referenced by getActiveComponents(), and setActiveComponents().

$available_components

ilGlobalCache::$available_components

staticprotected

Initial value:

= array(
        self::COMP_CLNG,
        self::COMP_OBJ_DEF,
        self::COMP_ILCTRL,
        self::COMP_COMPONENT,
        self::COMP_TEMPLATE,
        self::COMP_TPL_BLOCKS,
        self::COMP_TPL_VARIABLES,
        self::COMP_EVENTS,
        self::COMP_GLOBAL_SCREEN,
    )

Definition at line 58 of file class.ilGlobalCache.php.

Referenced by getAvailableComponents(), and setAvailableComponents().

$available_types

ilGlobalCache::$available_types

staticprotected

Initial value:

= array(
        self::TYPE_MEMCACHED,
        self::TYPE_XCACHE,
        self::TYPE_APC,
        self::TYPE_STATIC,
    )

Definition at line 45 of file class.ilGlobalCache.php.

$component

ilGlobalCache::$component

protected

Definition at line 88 of file class.ilGlobalCache.php.

Referenced by getComponent(), getInstance(), and setComponent().

$global_cache

ilGlobalCache::$global_cache

protected

Definition at line 84 of file class.ilGlobalCache.php.

$instances

ilGlobalCache::$instances

staticprotected

Definition at line 80 of file class.ilGlobalCache.php.

$service_type

ilGlobalCache::$service_type = ilGlobalCache::TYPE_STATIC

protected

Definition at line 96 of file class.ilGlobalCache.php.

Referenced by __construct(), getInstance(), getServiceType(), lookupServiceClassName(), and setServiceType().

$settings

ilGlobalCache::$settings

staticprotected

Definition at line 100 of file class.ilGlobalCache.php.

Referenced by setSettings().

$type_per_component

ilGlobalCache::$type_per_component = array()

staticprotected

Definition at line 72 of file class.ilGlobalCache.php.

$types

ilGlobalCache::$types

staticprotected

Initial value:

= array(
        self::TYPE_MEMCACHED,
        self::TYPE_XCACHE,
        self::TYPE_APC,
        self::TYPE_STATIC,
    )

Definition at line 36 of file class.ilGlobalCache.php.

Referenced by getAllInstallableTypes(), and getAllTypes().

$unique_service_id

ilGlobalCache::$unique_service_id = null

staticprotected

Definition at line 76 of file class.ilGlobalCache.php.

ACTIVE

const ilGlobalCache::ACTIVE = true

Definition at line 16 of file class.ilGlobalCache.php.

COMP_CLNG

const ilGlobalCache::COMP_CLNG = 'clng'

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

COMP_COMPONENT

const ilGlobalCache::COMP_COMPONENT = 'comp'

Definition at line 27 of file class.ilGlobalCache.php.

Referenced by ilCachedComponentData\__construct(), ilCachedComponentData\__destruct(), ilCachedComponentData\flush(), ilCachedComponentData\getInstance(), and ilObjectDefinition\readDefinitionData().

COMP_EVENTS

const ilGlobalCache::COMP_EVENTS = 'events'

Definition at line 29 of file class.ilGlobalCache.php.

Referenced by ilAppEventHandler\initListeners().

COMP_GLOBAL_SCREEN

const ilGlobalCache::COMP_GLOBAL_SCREEN = 'global_screen'

Definition at line 32 of file class.ilGlobalCache.php.

Referenced by arConnectorCache\__construct(), ILIAS\GlobalScreen\Collector\CoreStorageFacade\cache(), ilGSIdentificationStorage\getCache(), ilGSProviderStorage\getCache(), ilMMCustomItemStorage\getCache(), ilMMItemStorage\getCache(), ilMMItemTranslationStorage\getCache(), and ilMMTypeActionStorage\getCache().

COMP_ILCTRL

const ilGlobalCache::COMP_ILCTRL = 'ilctrl'

Definition at line 25 of file class.ilGlobalCache.php.

Referenced by ilCachedCtrl\__construct(), ilCachedCtrl\flush(), ilCachedCtrl\getInstance(), and ilCachedCtrl\isActive().

COMP_OBJ_DEF

const ilGlobalCache::COMP_OBJ_DEF = 'obj_def'

Definition at line 23 of file class.ilGlobalCache.php.

COMP_PLUGINS

const ilGlobalCache::COMP_PLUGINS = 'plugins'

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

COMP_RBAC_UA

const ilGlobalCache::COMP_RBAC_UA = 'rbac_ua'

Definition at line 28 of file class.ilGlobalCache.php.

COMP_TEMPLATE

const ilGlobalCache::COMP_TEMPLATE = 'tpl'

Definition at line 24 of file class.ilGlobalCache.php.

Referenced by HTML_Template_IT\getFile().

COMP_TPL_BLOCKS

const ilGlobalCache::COMP_TPL_BLOCKS = 'tpl_blocks'

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

Referenced by HTML_Template_IT\init().

COMP_TPL_VARIABLES

const ilGlobalCache::COMP_TPL_VARIABLES = 'tpl_variables'

Definition at line 31 of file class.ilGlobalCache.php.

Referenced by HTML_Template_IT\init().

MSG

const ilGlobalCache::MSG = 'Global Cache not active, can not access cache'

Definition at line 15 of file class.ilGlobalCache.php.

TYPE_APC

const ilGlobalCache::TYPE_APC = 3

Definition at line 20 of file class.ilGlobalCache.php.

Referenced by lookupServiceClassName().

TYPE_FALLBACK

const ilGlobalCache::TYPE_FALLBACK = self::TYPE_STATIC

Definition at line 21 of file class.ilGlobalCache.php.

TYPE_MEMCACHED

const ilGlobalCache::TYPE_MEMCACHED = 2

Definition at line 19 of file class.ilGlobalCache.php.

Referenced by lookupServiceClassName().

TYPE_STATIC

const ilGlobalCache::TYPE_STATIC = 0

Definition at line 17 of file class.ilGlobalCache.php.

TYPE_XCACHE

const ilGlobalCache::TYPE_XCACHE = 1

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

Referenced by lookupServiceClassName().

---

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

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