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<?php
/* Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Monitoring\Object;
use Icinga\Data\DataArray\ArrayDatasource;
use Icinga\Data\Filter\Filter;
use Icinga\Data\Filter\FilterOr;
use Icinga\Data\SimpleQuery;
use Icinga\Util\StringHelper;
/**
* A host list
*/
class HostList extends ObjectList
{
protected $dataViewName = 'hoststatus';
protected $columns = array('host_name');
protected function fetchObjects()
{
$hosts = array();
$query = $this->backend->select()->from($this->dataViewName, $this->columns)->applyFilter($this->filter)
->getQuery()->getSelectQuery()->query();
foreach ($query as $row) {
/** @var object $row */
$host = new Host($this->backend, $row->host_name);
$host->setProperties($row);
$hosts[] = $host;
}
return $hosts;
}
/**
* Create a state summary of all hosts that can be consumed by hostssummary.phtml
*
* @return SimpleQuery
*/
public function getStateSummary()
{
$hostStates = array_fill_keys(self::getHostStatesSummaryEmpty(), 0);
foreach ($this as $host) {
$unhandled = (bool) $host->problem === true && (bool) $host->handled === false;
$stateName = 'hosts_' . $host::getStateText($host->state);
++$hostStates[$stateName];
++$hostStates[$stateName. ($unhandled ? '_unhandled' : '_handled')];
}
$hostStates['hosts_total'] = count($this);
$ds = new ArrayDatasource(array((object) $hostStates));
return $ds->select();
}
/**
* Return an empty array with all possible host state names
*
* @return array An array containing all possible host states as keys and 0 as values.
*/
public static function getHostStatesSummaryEmpty()
{
return StringHelper::cartesianProduct(
array(
array('hosts'),
array(
Host::getStateText(Host::STATE_UP),
Host::getStateText(Host::STATE_DOWN),
Host::getStateText(Host::STATE_UNREACHABLE),
Host::getStateText(Host::STATE_PENDING)
),
array(null, 'handled', 'unhandled')
),
'_'
);
}
/**
* Returns a Filter that matches all hosts in this list
*
* @return Filter
*/
public function objectsFilter($columns = array('host' => 'host'))
{
$filterExpression = array();
foreach ($this as $host) {
$filterExpression[] = Filter::where($columns['host'], $host->getName());
}
return FilterOr::matchAny($filterExpression);
}
/**
* Get the comments
*
* @return \Icinga\Module\Monitoring\DataView\Hostcomment
*/
public function getComments()
{
return $this->backend
->select()
->from('hostcomment', array('host_name'))
->applyFilter(clone $this->filter);
}
/**
* Get the scheduled downtimes
*
* @return \Icinga\Module\Monitoring\DataView\Hostdowntime
*/
public function getScheduledDowntimes()
{
return $this->backend
->select()
->from('hostdowntime', array('host_name'))
->applyFilter(clone $this->filter);
}
/**
* @return ObjectList
*/
public function getUnacknowledgedObjects()
{
$unhandledObjects = array();
foreach ($this as $object) {
if (! in_array((int) $object->state, array(0, 99)) &&
(bool) $object->host_acknowledged === false) {
$unhandledObjects[] = $object;
}
}
return $this->newFromArray($unhandledObjects);
}
}
|
