testing

PhabricatorUserCacheType.php
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			<?php

			abstract class PhabricatorUserCacheType extends Phobject {

			final public function getViewer() {
			return PhabricatorUser::getOmnipotentUser();
			}

			public function getAutoloadKeys() {
			return array();
			}

			public function canManageKey($key) {
			return false;
			}

			public function getDefaultValue() {
			return array();
			}

			public function getValueFromStorage($value) {
			return phutil_json_decode($value);
			}

			public function getValueForStorage($value) {
			return phutil_json_encode($value);
			}

			public function newValueForUsers($key, array $users) {
			return array();
			}

			final public function getUserCacheType() {
			return $this->getPhobjectClassConstant('CACHETYPE');
			}

			public static function getAllCacheTypes() {
			return id(new PhutilClassMapQuery())
			->setAncestorClass(__CLASS__)
			->setUniqueMethod('getUserCacheType')
			->execute();
			}

			public static function getCacheTypeForKey($key) {
			$all = self::getAllCacheTypes();

			foreach ($all as $type) {
			if ($type->canManageKey($key)) {
			return $type;
			}
			}

			return null;
			}

			public static function requireCacheTypeForKey($key) {
			$type = self::getCacheTypeForKey($key);

			if (!$type) {
			throw new Exception(
			pht(
			'Failed to load UserCacheType to manage key "%s". This cache type '.
			'is required.',
			$key));
			}

			return $type;
			}

			}