laipower/wp-content/plugins/w3-total-cache/ObjectCache_Plugin_Admin.php

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<?php
namespace W3TC;
class ObjectCache_Plugin_Admin {
function run() {
$config_labels = new ObjectCache_ConfigLabels();
add_filter( 'w3tc_config_labels', array( $config_labels, 'config_labels' ) );
$c = Dispatcher::config();
if ( $c->get_boolean( 'objectcache.enabled' ) ) {
add_filter( 'w3tc_errors', array( $this, 'w3tc_errors' ) );
add_filter( 'w3tc_notes', array( $this, 'w3tc_notes' ) );
add_filter( 'w3tc_usage_statistics_summary_from_history', array(
$this, 'w3tc_usage_statistics_summary_from_history' ), 10, 2 );
}
}
public function w3tc_errors( $errors ) {
$c = Dispatcher::config();
if ( $c->get_string( 'objectcache.engine' ) == 'memcached' ) {
$memcached_servers = $c->get_array(
'objectcache.memcached.servers' );
$memcached_binary_protocol = $c->get_boolean(
'objectcache.memcached.binary_protocol' );
$memcached_username = $c->get_string(
'objectcache.memcached.username' );
$memcached_password = $c->get_string(
'objectcache.memcached.password' );
if ( !Util_Installed::is_memcache_available( $memcached_servers, $memcached_binary_protocol, $memcached_username, $memcached_password ) ) {
if ( !isset( $errors['memcache_not_responding.details'] ) )
$errors['memcache_not_responding.details'] = array();
$errors['memcache_not_responding.details'][] = sprintf(
__( 'Object Cache: %s.', 'w3-total-cache' ),
implode( ', ', $memcached_servers ) );
}
}
return $errors;
}
public function w3tc_notes( $notes ) {
$c = Dispatcher::config();
$state = Dispatcher::config_state();
$state_note = Dispatcher::config_state_note();
/**
* Show notification when object cache needs to be emptied
*/
if ( $state_note->get( 'objectcache.show_note.flush_needed' ) &&
!is_network_admin() /* flushed dont work under network admin */ &&
!$c->is_preview() ) {
$notes['objectcache_flush_needed'] = sprintf(
__( 'The setting change(s) made either invalidate the cached data or modify the behavior of the site. %s now to provide a consistent user experience.',
'w3-total-cache' ),
Util_Ui::button_link(
__( 'Empty the object cache', 'w3-total-cache' ),
Util_Ui::url( array( 'w3tc_flush_objectcache' => 'y' ) ) ) );
}
return $notes;
}
public function w3tc_usage_statistics_summary_from_history( $summary, $history ) {
// counters
$get_total = Util_UsageStatistics::sum( $history, 'objectcache_get_total' );
$get_hits = Util_UsageStatistics::sum( $history, 'objectcache_get_hits' );
$sets = Util_UsageStatistics::sum( $history, 'objectcache_sets' );
$c = Dispatcher::config();
$e = $c->get_string( 'objectcache.engine' );
$summary['objectcache'] = array(
'get_total' => Util_UsageStatistics::integer( $get_total ),
'get_hits' => Util_UsageStatistics::integer( $get_hits ),
'sets' => Util_UsageStatistics::integer( $sets ),
'flushes' => Util_UsageStatistics::integer(
Util_UsageStatistics::sum( $history, 'objectcache_flushes' ) ),
'time_ms' => Util_UsageStatistics::integer(
Util_UsageStatistics::sum( $history, 'objectcache_time_ms' ) ),
'calls_per_second' => Util_UsageStatistics::value_per_period_seconds(
$get_total + $sets, $summary ),
'hit_rate' => Util_UsageStatistics::percent(
$get_hits, $get_total ),
'engine_name' => Cache::engine_name( $e )
);
return $summary;
}
}