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Added preload caching

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This commit is contained in:
Deon George 2011-06-01 19:30:22 +10:00
parent d7822a03e8
commit 35426141e5
3 changed files with 65 additions and 6 deletions
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56
application/classes/ormtsm.php
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@ -25,6 +25,60 @@ class ORMTSM extends ORM {
protected $_formated = FALSE;
protected $_formats = array();
public function find() {
// Check if we can preload our data and havent already done it
if ($time = $this->isCacheable() AND is_null(Cache::instance()->get($cache_key = 'PRELOAD:'.$this->_table_name))) {
// Firstly set our cache, so that we dont get in a loop
Cache::instance()->set($cache_key,TRUE,$time-1);
// Find all records of this type
$c = get_class($this);
$x = new $c;
foreach ($x->find_all() as $record) {
// Simulate loading the record so that we can get the SQL to use as our cache key
$y = new $c;
$y->where($y->_primary_key,'=',(string)$record);
// Code, as extracted from ORM to complete building the SQL
$y->_build(Database::SELECT);
$y->_db_builder->from($y->_table_name);
if (! isset($y->_db_applied['order_by']) AND ! empty($y->_sorting))
foreach ($y->_sorting as $column => $direction) {
if (strpos($column, '.') === FALSE)
// Sorting column for use in JOINs
$column = ($y->_disable_join_table_name ? '' : $y->_table_name.'.').$column;
$y->_db_builder->order_by($column, $direction);
}
// Set the cache key based on the database instance name and SQL
$cache_key = 'Database::query("'.$y->_db.'", "'.(string)$y->_db_builder.'")';
unset($y);
// Cache the record, our subsequent find should get a cache hit now.
Kohana::cache($cache_key, array($record->as_array()), $time);
}
unset($x);
}
// Contiue as normal
return parent::find();
}
private function isCacheable() {
$preload = array('NODES','VOLUMES');
$config = Kohana::config('database')->{Database::$default};
if ($config['caching'] AND isset($config['cachepreload'][$this->_table_name]) AND count($this->_db_pending) == 1 AND $this->_db_pending[0]['name'] == 'where' AND $this->_db_pending[0]['args'][0] == $this->_primary_key AND $this->_db_pending[0]['args'][1] == '=')
return $config['cachepreload'][$this->_table_name];
else
return FALSE;
}
protected function _load_result($multiple = FALSE) {
// We'll cache our query results
if ($c = $this->_db->caching($this->_table_name))
@ -46,7 +100,7 @@ class ORMTSM extends ORM {
// Set the cache key based on the database instance name and SQL
$cache_key = 'Database::query(LC:'.$this->_table_name.')';
if ($result = Cache::instance()->get($cache_key))
if (! is_null($result = Cache::instance()->get($cache_key)))
// Return a cached result
return $result;
}

7
application/config/database.php
View File

@ -56,6 +56,13 @@ return array
'VOLUMES' => 1200,
'VOLUMEUSAGE' => 1200,
),
'cachepreload' => array(
'DEVCLASSES' => 1200,
'DOMAINS' => 1200,
'NODES' => 1200,
'STGPOOLS' => 1200,
'VOLUMES' => 1200,
),
'profiling' => TRUE,
),
);

8
application/views/domain/detail.php
View File

@ -107,7 +107,7 @@
<td style="width: 100%; vertical-align: top;">
<table class="box-full">
<tr>
<td class="head" colspan="15">Sequential Volumes needed to restore Data for Nodes in this Domain</td>
<td class="head" colspan="14">Sequential Volumes needed to restore Data for Nodes in this Domain</td>
</tr>
<tr>
<td class="spacer">&nbsp;</td>
@ -120,7 +120,6 @@
<td class="right">Pct %</td>
<td class="right">Rec %</td>
<td class="right">Mounted</td>
<td class="right">Writes</td>
<td class="right">R/W Err</td>
<td class="right">FS</td>
<td class="right">Nodes</td>
@ -128,12 +127,12 @@
</tr>
<?php foreach (Kohana::config('config.tsmdatatypes') as $btype => $ctype) { ?>
<tr class="subhead">
<td colspan="15"><?php echo $btype; ?></td>
<td colspan="14"><?php echo $btype; ?></td>
</tr>
<?php foreach (Kohana::config('config.tsmpooltypes') as $type) { ?>
<tr class="subhead">
<td>&nbsp;</td>
<td colspan="14"><?php echo $type; ?></td>
<td colspan="13"><?php echo $type; ?></td>
</tr>
<?php $i=0;foreach ($do->getStoragePoolsType($btype,$type) as $spo) { ?>
<tr class="subhead">
@ -150,7 +149,6 @@
<td class="data-right"><?php echo $vuo->VOLUME->display('PCT_UTILIZED'); ?></td>
<td class="data-right"><?php echo $vuo->VOLUME->display('PCT_RECLAIM'); ?></td>
<td class="data-right"><?php echo $vuo->VOLUME->display('TIMES_MOUNTED'); ?></td>
<td class="data-right"><?php echo $vuo->VOLUME->display('WRITE_PASS'); ?></td>
<td class="data-right"><?php printf('%s/%s',$vuo->VOLUME->READ_ERRORS,$vuo->VOLUME->WRITE_ERRORS); ?></td>
<td class="data-right"><?php echo $vuo->VOLUME->getFSOnVol($ctype); ?></td>
<td class="data-right"><?php echo $vuo->VOLUME->getNodesOnVol($ctype); ?></td>