/**
* Prepares the environment before running a test.
*/
protected function setUp()
{
parent::setUp();
$this->cloudWatchInstance = new Ec2\CloudWatch('access_key', 'secret_access_key');
$adapter = new \Zend\Http\Client\Adapter\Test();
$client = new \Zend\Http\Client(null, array('adapter' => $adapter));
$this->adapter = $adapter;
Ec2\CloudWatch::setDefaultHTTPClient($client);
}
/**
* Prepares the environment before running a test.
*/
protected function setUp()
{
parent::setUp();
$this->Zend_Service_Amazon_Ec2_CloudWatch = new Ec2\CloudWatch('access_key', 'secret_access_key');
$adapter = new \Zend\HTTP\Client\Adapter\Test();
$client = new \Zend\HTTP\Client(null, array('adapter' => $adapter));
$this->adapter = $adapter;
Ec2\CloudWatch::setDefaultHTTPClient($client);
}
/**
* Return the system information about the $metric of an instance
*
* @param string $id
* @param string $metric
* @param null|array $options
* @return boolean|array
*/
public function monitorInstance($id, $metric, $options = null)
{
if (empty($id) || empty($metric)) {
return false;
}
if (!in_array($metric, $this->validMetrics)) {
throw new Exception\InvalidArgumentException(sprintf('The metric "%s" is not valid', $metric));
}
if (!empty($options) && !is_array($options)) {
throw new Exception\InvalidArgumentException('The options must be an array');
}
if (!empty($options) && (empty($options[Instance::MONITOR_START_TIME]) || empty($options[Instance::MONITOR_END_TIME]))) {
throw new Exception\InvalidArgumentException(sprintf('The options array must contain: "%s" and "%s"', $options[Instance::MONITOR_START_TIME], $options[Instance::MONITOR_END_TIME]));
}
if (!isset($this->ec2Monitor)) {
$this->ec2Monitor = new Ec2Monitor($this->accessKey, $this->accessSecret, $this->region);
$this->ec2Monitor->setHttpClient($this->ec2->getHttpClient());
}
$param = array('MeasureName' => $this->mapMetrics[$metric], 'Statistics' => array('Average'), 'Dimensions' => array('InstanceId' => $id));
if (!empty($options)) {
$param['StartTime'] = $options[Instance::MONITOR_START_TIME];
$param['EndTime'] = $options[Instance::MONITOR_END_TIME];
}
$this->resetError();
try {
$this->adapterResult = $this->ec2Monitor->getMetricStatistics($param);
} catch (Ec2Exception\RunTimeException $e) {
$this->setError($e);
return false;
}
$monitor = array();
$num = 0;
$average = 0;
if (!empty($this->adapterResult['datapoints'])) {
foreach ($this->adapterResult['datapoints'] as $result) {
$monitor['series'][] = array('timestamp' => $result['Timestamp'], 'value' => $result['Average']);
$average += $result['Average'];
$num++;
}
}
if ($num > 0) {
$monitor['average'] = $average / $num;
}
return $monitor;
}