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213 lines (181 loc) · 4.12 KB
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<?php
/**
* Debug logging class
*
* @author Christopher Han <xiphux@gmail.com>
* @copyright Copyright (c) 2010 Christopher Han
* @package GitPHP
*/
class GitPHP_DebugLog implements GitPHP_Observer_Interface
{
/**
* Stores whether logging is enabled
*
* @var boolean
*/
protected $enabled = false;
/**
* Stores whether benchmarking is enabled
*
* @var boolean
*/
protected $benchmark = false;
/**
* Stores the starting instant
*
* @var float
*/
protected $startTime;
/**
* Stores the starting memory
*
* @var int
*/
protected $startMem;
/**
* Stores the log entries
*
* @var string[]
*/
protected $entries = array();
/**
* Constructor
*
* @param boolean $enabled whether log should be enabled
* @param boolean $benchmark whether benchmarking should be enabled
*/
public function __construct($enabled = false, $benchmark = false)
{
$this->startTime = microtime(true);
$this->startMem = memory_get_usage();
$this->enabled = $enabled;
$this->benchmark = $benchmark;
}
/**
* Sets start time
*
* @param float $start starting microtime
*/
public function SetStartTime($start)
{
$this->startTime = $start;
}
/**
* Sets start memory
*
* @param integer $start starting memory
*/
public function SetStartMemory($start)
{
$this->startMem = $start;
}
/**
* Log an entry
*
* @param string $message message to log
*/
public function Log($message)
{
if (!$this->enabled)
return;
$entry = array();
if ($this->benchmark) {
$entry['time'] = microtime(true);
$entry['mem'] = memory_get_usage();
}
$entry['msg'] = $message;
$this->entries[] = $entry;
}
/**
* Gets whether logging is enabled
*
* @return boolean true if logging is enabled
*/
public function GetEnabled()
{
return $this->enabled;
}
/**
* Sets whether logging is enabled
*
* @param boolean $enable true if logging is enabled
*/
public function SetEnabled($enable)
{
$this->enabled = $enable;
}
/**
* Gets whether benchmarking is enabled
*
* @return boolean true if benchmarking is enabled
*/
public function GetBenchmark()
{
return $this->benchmark;
}
/**
* Sets whether benchmarking is enabled
*
* @param boolean $bench true if benchmarking is enabled
*/
public function SetBenchmark($bench)
{
$this->benchmark = $bench;
}
/**
* Gets log entries
*
* @return string[] log entries
*/
public function GetEntries()
{
$data = array();
if ($this->enabled) {
if ($this->benchmark) {
$endTime = microtime(true);
$endMem = memory_get_usage();
$lastTime = $this->startTime;
$lastMem = $this->startMem;
$data[] = 'DEBUG: [' . $this->startTime . '] [' . $this->startMem . ' bytes] Start';
}
foreach ($this->entries as $entry) {
if ($this->benchmark) {
$data[] = 'DEBUG: [' . $entry['time'] . '] [' . ($entry['time'] - $this->startTime) . ' sec since start] [' . ($entry['time'] - $lastTime) . ' sec since last] [' . $entry['mem'] . ' bytes] [' . ($entry['mem'] - $this->startMem) . ' bytes since start] [' . ($entry['mem'] - $lastMem) . ' bytes since last] ' . $entry['msg'];
$lastTime = $entry['time'];
$lastMem = $entry['mem'];
} else {
$data[] = 'DEBUG: ' . $entry['msg'];
}
}
if ($this->benchmark) {
$data[] = 'DEBUG: [' . $endTime . '] [' . ($endTime - $this->startTime) . ' sec since start] [' . ($endTime - $lastTime) . ' sec since last] [' . $endMem . ' bytes] [' . ($endMem - $this->startMem) . ' bytes since start] [' . ($endMem - $lastMem) . ' bytes since last] End';
}
}
return $data;
}
/**
* Clears the log
*/
public function Clear()
{
$this->entries = array();
}
/**
* Notify that observable object changed
*
* @param GitPHP_Observable_Interface $object object
* @param int $changeType type of change
* @param array $args argument array
*/
public function ObjectChanged($object, $changeType, $args = array())
{
if ($changeType !== GitPHP_Observer_Interface::LoggableChange)
return;
if (!$this->enabled)
return;
if (!isset($args[0]) || empty($args[0]))
return;
$msg = $args[0];
$this->Log($msg);
}
}