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<?php |
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namespace SimpleSAML\Module\monitor\TestSuite\Store; |
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use \SimpleSAML\Module\monitor\TestConfiguration as TestConfiguration; |
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use \SimpleSAML\Module\monitor\TestCase as TestCase; |
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use \SimpleSAML\Module\monitor\TestData as TestData; |
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final class Memcache extends \SimpleSAML\Module\monitor\TestSuiteFactory |
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{ |
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/** |
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* var string|null |
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*/ |
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private $class = null; |
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/** |
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* var string |
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*/ |
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private $serverGroupName = '** Unknown **'; |
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/** |
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* @param TestConfiguration $configuration |
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*/ |
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public function __construct($configuration) |
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{ |
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$class = class_exists('Memcache') ? 'Memcache' : (class_exists('Memcached') ? 'Memcached' : null); |
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if ($class === null) { |
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$globalConfig = $configuration->getGlobalConfig(); |
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$serverGroups = $globalConfig->getValue('memcache_store.servers', array()); |
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$serverGroupName = array_map(function($i) { |
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$group = array_keys($i); |
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return 'Server Group #' . ++$group[0]; |
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}, $serverGroups); |
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$this->serverGroupName = implode(PHP_EOL, $serverGroupName); |
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} |
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$this->class = $class; |
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$this->setCategory('Memcache sessions'); |
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parent::__construct($configuration); |
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} |
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/** |
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* @return void |
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*/ |
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protected function invokeTestSuite() |
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{ |
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$testResult = new TestResult('Memcache health', $this->serverGroupName); |
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// Check Memcache-servers |
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if ($this->class === null) { |
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$testResult->setState(State::FATAL); |
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$testResult->setMessage('Missing PHP module'); |
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} else { |
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$stats = \SimpleSAML_Memcache::getRawStats(); |
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foreach ($stats as $key => $serverGroup) { |
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$groupName = is_numeric($key) ? '#' . ++$key : "`$key'"; |
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$groupResults = array(); |
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foreach ($serverGroup as $host => $serverStats) { |
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$input = array( |
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'serverStats' => $serverStats, |
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'host' => $host |
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); |
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$testData = new TestData($input); |
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$groupTest = new TestCase\Store\Memcache\Server($this, $testData); |
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$this->addTestResult($groupTest->getTestResult()); |
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} |
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$state = $this->calculateState(); |
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$testResult->setState($state); |
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if ($state === State::OK) { |
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$testResult->setMessage('Group is healthy'); |
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} elseif ($state === State::WARNING) { |
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$testResult->setMessage('Group is crippled'); |
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} else { |
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$testResult->setMessage('Group is down'); |
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} |
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} |
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} |
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$this->setTestResult($testResult); |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.