DowntimeendhistoryQuery: Use subqueries to fetch host and service downtimes
refs #9009
This commit is contained in:
Johannes Meyer
parent
dadb3853d7
commit
c35be4023b
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@ -3,49 +3,151 @@
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namespace Icinga\Module\Monitoring\Backend\Ido\Query;
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use Zend_Db_Expr;
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use Zend_Db_Select;
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use Icinga\Data\Filter\Filter;
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/**
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* Query for host and service downtime end history records
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*/
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class DowntimeendhistoryQuery extends IdoQuery
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{
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/**
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* {@inheritdoc}
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*/
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protected $columnMap = array(
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'downtimehistory' => array(
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'state_time' => 'h.actual_end_time',
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'timestamp' => 'UNIX_TIMESTAMP(h.actual_end_time)',
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'raw_timestamp' => 'h.actual_end_time',
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'object_id' => 'h.object_id',
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'type' => "('dt_end')",
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'state' => '(NULL)',
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'state_type' => '(NULL)',
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'output' => "('[' || h.author_name || '] ' || h.comment_data)",
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'attempt' => '(NULL)',
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'max_attempts' => '(NULL)',
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'host' => 'o.name1 COLLATE latin1_general_ci',
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'service' => 'o.name2 COLLATE latin1_general_ci',
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'host_name' => 'o.name1',
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'service_description' => 'o.name2',
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'object_type' => "CASE WHEN o.objecttype_id = 1 THEN 'host' ELSE 'service' END"
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'object_type' => 'deh.object_type'
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),
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'history' => array(
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'type' => 'deh.type',
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'timestamp' => 'deh.timestamp',
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'object_id' => 'deh.object_id',
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'state' => 'deh.state',
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'output' => 'deh.output'
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),
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'hosts' => array(
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'host_display_name' => 'deh.host_display_name',
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'host_name' => 'deh.host_name'
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),
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'services' => array(
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'service_description' => 'deh.service_description',
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'service_display_name' => 'deh.service_display_name',
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'service_host_name' => 'deh.service_host_name'
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)
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);
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public function whereToSql($col, $sign, $expression)
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{
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if ($col === 'UNIX_TIMESTAMP(h.actual_end_time)') {
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return 'h.actual_end_time ' . $sign . ' ' . $this->timestampForSql($this->valueToTimestamp($expression));
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} else {
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return parent::whereToSql($col, $sign, $expression);
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}
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}
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/**
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* The union
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*
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* @var Zend_Db_Select
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*/
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protected $downtimeEndHistoryQuery;
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/**
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* Subqueries used for the downtime end history query
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*
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* @var IdoQuery[]
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*/
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protected $subQueries = array();
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/**
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* Whether to additionally select all history columns
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*
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* @var bool
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*/
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protected $fetchHistoryColumns = false;
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/**
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* {@inheritdoc}
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*/
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protected function joinBaseTables()
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{
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$this->downtimeEndHistoryQuery = $this->db->select();
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$this->select->from(
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array('o' => $this->prefix . 'objects'),
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array('deh' => $this->downtimeEndHistoryQuery),
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array()
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)->join(
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array('h' => $this->prefix . 'downtimehistory'),
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'o.' . $this->object_id . ' = h.' . $this->object_id . ' AND o.is_active = 1',
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array()
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)->where('h.actual_end_time > ?', '1970-01-02 00:00:00');
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$this->joinedVirtualTables = array('downtimehistory' => true);
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);
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$this->joinedVirtualTables['downtimehistory'] = true;
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}
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/**
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* Join history related columns and tables
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*/
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protected function joinHistory()
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{
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// TODO: Ensure that one is selecting the history columns first...
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$this->fetchHistoryColumns = true;
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$this->requireVirtualTable('hosts');
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$this->requireVirtualTable('services');
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}
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/**
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* Join hosts
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*/
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protected function joinHosts()
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{
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$columns = array_keys(
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$this->columnMap['downtimehistory'] + $this->columnMap['hosts']
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);
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foreach ($this->columnMap['services'] as $column => $_) {
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$columns[$column] = new Zend_Db_Expr('NULL');
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}
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if ($this->fetchHistoryColumns) {
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$columns = array_merge($columns, array_keys($this->columnMap['history']));
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}
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$hosts = $this->createSubQuery('Hostdowntimeendhistory', $columns);
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$this->subQueries[] = $hosts;
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$this->downtimeEndHistoryQuery->union(array($hosts), Zend_Db_Select::SQL_UNION_ALL);
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}
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/**
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* Join services
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*/
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protected function joinServices()
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{
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$columns = array_keys(
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$this->columnMap['downtimehistory'] + $this->columnMap['hosts'] + $this->columnMap['services']
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);
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if ($this->fetchHistoryColumns) {
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$columns = array_merge($columns, array_keys($this->columnMap['history']));
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}
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$services = $this->createSubQuery('Servicedowntimeendhistory', $columns);
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$this->subQueries[] = $services;
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$this->downtimeEndHistoryQuery->union(array($services), Zend_Db_Select::SQL_UNION_ALL);
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}
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/**
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* {@inheritdoc}
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*/
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public function order($columnOrAlias, $dir = null)
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{
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foreach ($this->subQueries as $sub) {
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$sub->requireColumn($columnOrAlias);
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}
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return parent::order($columnOrAlias, $dir);
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}
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/**
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* {@inheritdoc}
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*/
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public function where($condition, $value = null)
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{
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$this->requireColumn($condition);
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foreach ($this->subQueries as $sub) {
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$sub->where($condition, $value);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function addFilter(Filter $filter)
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{
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foreach ($this->subQueries as $sub) {
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$sub->applyFilter(clone $filter);
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}
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return $this;
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}
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}
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