AlkantarClanX12
Your IP : 18.224.55.193
<?php
namespace W3TC;
class Util_UsageStatistics {
static public function bytes_to_size( $v ) {
if ( is_null( $v ) )
return 'n/a';
if ( $v > 500000000 )
return sprintf( '%.1f GB', $v / 1024 /*KB*/ / 1024 /*MB*/ / 1024/*GB*/ );
if ( $v > 500000 )
return sprintf( '%.1f MB', $v / 1024 /*KB*/ / 1024 /*MB*/ );
else
return sprintf( '%.1f KB', $v / 1024 /*KB*/ );
}
static public function bytes_to_size2( $a, $p1, $p2 = null, $p3 = null ) {
$v = self::v( $a, $p1, $p2, $p3 );
if ( is_null( $v ) )
return 'n/a';
return self::bytes_to_size( $v );
}
static public function percent( $v1, $v2 ) {
if ( $v2 == 0 ) {
return '0 %';
} elseif ($v1 > $v2 ) {
return '100 %';
} else {
return sprintf( '%d', $v1 / $v2 * 100 ) . ' %';
}
}
static public function percent2( $a, $property1, $property2 ) {
if ( !isset( $a[$property1] ) || !isset( $a[$property2] ) )
return 'n/a';
else if ( $a[$property2] == 0 )
return '0 %';
else
return sprintf( '%d', $a[$property1] / $a[$property2] * 100 ) . ' %';
}
static public function sum( $history, $property ) {
$v = 0;
foreach ( $history as $i ) {
$item_value = self::v3( $i, $property );
if ( !empty( $item_value ) ) {
$v += $item_value;
}
}
return $v;
}
static public function avg( $history, $property ) {
$v = 0;
$count = 0;
foreach ( $history as $i ) {
$item_value = self::v3( $i, $property );
if ( !empty( $item_value ) ) {
$v += $item_value;
$count++;
}
}
return ( $count <= 0 ? 0 : $v / $count );
}
/**
* Sum up all positive metric values which names start with specified prefix
**/
static public function sum_by_prefix_positive( &$output, $history, $property_prefix ) {
$property_prefix_len = strlen( $property_prefix );
foreach ( $history as $i ) {
foreach ( $i as $key => $value ) {
if ( substr( $key, 0, $property_prefix_len ) == $property_prefix &&
$value > 0 ) {
if ( !isset( $output[$key] ) ) {
$output[$key] = 0;
}
$output[$key] += $value;
}
}
}
}
static public function time_mins( $timestamp ) {
return date( 'm/d/Y H:i', $timestamp );
}
static public function integer( $v ) {
return number_format( $v );
}
static public function integer_divideby( $v, $divide_by ) {
if ( $divide_by == 0 ) {
return 'n/a';
}
return self::integer( $v / $divide_by );
}
static public function integer2( $a, $p1, $p2 = null, $p3 = null ) {
$v = self::v( $a, $p1, $p2, $p3 );
if ( is_null( $v ) )
return 'n/a';
else
return number_format( $v );
}
static public function v( $a, $p1, $p2 = null, $p3 = null ) {
if ( !isset( $a[$p1] ) )
return null;
$v = $a[$p1];
if ( is_null( $p2 ) )
return $v;
if ( !isset( $v[$p2] ) )
return null;
$v = $v[$p2];
if ( is_null( $p3 ) )
return $v;
if ( !isset( $v[$p3] ) )
return null;
return $v[$p3];
}
static public function v3( $a, $p ) {
if ( !is_array( $p ) ) {
$p = array( $p );
}
$actual = &$a;
for ( $i = 0; $i < count( $p ); $i++) {
$property = $p[$i];
if ( !isset( $actual[$property] ) ) {
return null;
}
$actual = &$actual[$property];
}
return $actual;
}
static public function value_per_second( $a, $property1, $property2 ) {
if ( !isset( $a[$property1] ) || !isset( $a[$property2] ) )
return 'n/a';
else if ( $a[$property2] == 0 )
return '0';
else
return sprintf( '%.1f', $a[$property1] / $a[$property2] * 100 );
}
static public function value_per_period_seconds( $total, $summary ) {
if ( empty( $summary['period']['seconds'] ) )
return 'n/a';
$period_seconds = $summary['period']['seconds'];
return sprintf( '%.1f', $total / $period_seconds );
}
/**
* Special shared code for cache size counting
*/
static public function get_or_init_size_transient( $transient, $summary ) {
$should_count = false;
$v = get_transient( $transient );
if ( is_array( $v ) && isset( $v['timestamp_end'] ) &&
$v['timestamp_end'] == $summary['period']['timestamp_end'] ) {
return array( $v, false );
}
// limit number of processing counting it at the same time
$v = array(
'timestamp_end' => $summary['period']['timestamp_end'],
'size_used' => '...counting',
'items' => '...counting'
);
set_transient( $transient, $v, 120 );
return array( $v, true );
}
}