diff options
| author | xue <> | 2006-03-31 12:42:22 +0000 |
|---|---|---|
| committer | xue <> | 2006-03-31 12:42:22 +0000 |
| commit | 6845c00a3f752abecd9ef763848329bceaf63df4 (patch) | |
| tree | d573c37ad864edde9a04f1c7b415afe6c2a9c1ef /framework/Util/TLogRouter.php | |
| parent | 06fdd252452217716b1062b632fd2fc2195a66e2 (diff) | |
Reorganized folders under framework. This may break existing applications.
Diffstat (limited to 'framework/Util/TLogRouter.php')
| -rw-r--r-- | framework/Util/TLogRouter.php | 666 |
1 files changed, 666 insertions, 0 deletions
diff --git a/framework/Util/TLogRouter.php b/framework/Util/TLogRouter.php new file mode 100644 index 00000000..bdad8649 --- /dev/null +++ b/framework/Util/TLogRouter.php @@ -0,0 +1,666 @@ +<?php
+/**
+ * TLogRouter, TLogRoute, TFileLogRoute, TEmailLogRoute class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ */
+
+/**
+ * TLogRouter class.
+ *
+ * TLogRouter manages routes that record log messages in different media different ways.
+ * For example, a file log route {@link TFileLogRoute} records log messages
+ * in log files. An email log route {@link TEmailLogRoute} sends log messages
+ * to email addresses.
+ *
+ * Log routes may be configured in application or page folder configuration files
+ * or an external configuration file specified by {@link setConfigFile ConfigFile}.
+ * The format is as follows,
+ * <code>
+ * <route class="TFileLogRoute" Categories="System.Web.UI" Levels="Warning" />
+ * <route class="TEmailLogRoute" Categories="Application" Levels="Fatal" Emails="admin@pradosoft.com" />
+ * </code>
+ * You can specify multiple routes with different filtering conditions and different
+ * targets, even if the routes are of the same type.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TLogRouter extends TModule
+{
+ /**
+ * File extension of external configuration file
+ */
+ const CONFIG_FILE_EXT='.xml';
+ /**
+ * @var array list of routes available
+ */
+ private $_routes=array();
+ /**
+ * @var string external configuration file
+ */
+ private $_configFile=null;
+
+ /**
+ * Initializes this module.
+ * This method is required by the IModule interface.
+ * @param TXmlElement configuration for this module, can be null
+ * @throws TConfigurationException if {@link getConfigFile ConfigFile} is invalid.
+ */
+ public function init($config)
+ {
+ if($this->_configFile!==null)
+ {
+ if(is_file($this->_configFile))
+ {
+ $dom=new TXmlDocument;
+ $dom->loadFromFile($this->_configFile);
+ $this->loadConfig($dom);
+ }
+ else
+ throw new TConfigurationException('logrouter_configfile_invalid',$this->_configFile);
+ }
+ $this->loadConfig($config);
+ $this->getApplication()->attachEventHandler('OnEndRequest',array($this,'collectLogs'));
+ }
+
+ /**
+ * Loads configuration from an XML element
+ * @param TXmlElement configuration node
+ * @throws TConfigurationException if log route class or type is not specified
+ */
+ private function loadConfig($xml)
+ {
+ foreach($xml->getElementsByTagName('route') as $routeConfig)
+ {
+ $properties=$routeConfig->getAttributes();
+ if(($class=$properties->remove('class'))===null)
+ throw new TConfigurationException('logrouter_routeclass_required');
+ $route=Prado::createComponent($class);
+ if(!($route instanceof TLogRoute))
+ throw new TConfigurationException('logrouter_routetype_invalid');
+ foreach($properties as $name=>$value)
+ $route->setSubproperty($name,$value);
+ $this->_routes[]=$route;
+ $route->init($routeConfig);
+ }
+ }
+
+ /**
+ * @return string external configuration file. Defaults to null.
+ */
+ public function getConfigFile()
+ {
+ return $this->_configFile;
+ }
+
+ /**
+ * @param string external configuration file in namespace format. The file
+ * must be suffixed with '.xml'.
+ * @throws TInvalidDataValueException if the file is invalid.
+ */
+ public function setConfigFile($value)
+ {
+ if(($this->_configFile=Prado::getPathOfNamespace($value,self::LOG_FILE_EXT))===null)
+ throw new TConfigurationException('logrouter_configfile_invalid',$value);
+ }
+
+ /**
+ * Collects log messages from a logger.
+ * This method is an event handler to application's EndRequest event.
+ * @param mixed event parameter
+ */
+ public function collectLogs($param)
+ {
+ $logger=Prado::getLogger();
+ foreach($this->_routes as $route)
+ $route->collectLogs($logger);
+ }
+}
+
+/**
+ * TLogRoute class.
+ *
+ * TLogRoute is the base class for all log route classes.
+ * A log route object retrieves log messages from a logger and sends it
+ * somewhere, such as files, emails.
+ * The messages being retrieved may be filtered first before being sent
+ * to the destination. The filters include log level filter and log category filter.
+ *
+ * To specify level filter, set {@link setLevels Levels} property,
+ * which takes a string of comma-separated desired level names (e.g. 'Error, Debug').
+ * To specify category filter, set {@link setCategories Categories} property,
+ * which takes a string of comma-separated desired category names (e.g. 'System.Web, System.IO').
+ *
+ * Level filter and category filter are combinational, i.e., only messages
+ * satisfying both filter conditions will they be returned.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+abstract class TLogRoute extends TApplicationComponent
+{
+ /**
+ * @var array lookup table for level names
+ */
+ protected static $_levelNames=array(
+ TLogger::DEBUG=>'Debug',
+ TLogger::INFO=>'Info',
+ TLogger::NOTICE=>'Notice',
+ TLogger::WARNING=>'Warning',
+ TLogger::ERROR=>'Error',
+ TLogger::ALERT=>'Alert',
+ TLogger::FATAL=>'Fatal'
+ );
+ /**
+ * @var array lookup table for level values
+ */
+ protected static $_levelValues=array(
+ 'debug'=>TLogger::DEBUG,
+ 'info'=>TLogger::INFO,
+ 'notice'=>TLogger::NOTICE,
+ 'warning'=>TLogger::WARNING,
+ 'error'=>TLogger::ERROR,
+ 'alert'=>TLogger::ALERT,
+ 'fatal'=>TLogger::FATAL
+ );
+ /**
+ * @var integer log level filter (bits)
+ */
+ private $_levels=null;
+ /**
+ * @var array log category filter
+ */
+ private $_categories=null;
+
+ /**
+ * Initializes the route.
+ * @param TXmlElement configurations specified in {@link TLogRouter}.
+ */
+ public function init($config)
+ {
+ }
+
+ /**
+ * @return integer log level filter
+ */
+ public function getLevels()
+ {
+ return $this->_levels;
+ }
+
+ /**
+ * @param integer|string integer log level filter (in bits). If the value is
+ * a string, it is assumed to be comma-separated level names. Valid level names
+ * include 'Debug', 'Info', 'Notice', 'Warning', 'Error', 'Alert' and 'Fatal'.
+ */
+ public function setLevels($levels)
+ {
+ if(is_integer($levels))
+ $this->_levels=$levels;
+ else
+ {
+ $this->_levels=null;
+ $levels=strtolower($levels);
+ foreach(explode(',',$levels) as $level)
+ {
+ $level=trim($level);
+ if(isset(self::$_levelValues[$level]))
+ $this->_levels|=self::$_levelValues[$level];
+ }
+ }
+ }
+
+ /**
+ * @return array list of categories to be looked for
+ */
+ public function getCategories()
+ {
+ return $this->_categories;
+ }
+
+ /**
+ * @param array|string list of categories to be looked for. If the value is a string,
+ * it is assumed to be comma-separated category names.
+ */
+ public function setCategories($categories)
+ {
+ if(is_array($categories))
+ $this->_categories=$categories;
+ else
+ {
+ $this->_categories=null;
+ foreach(explode(',',$categories) as $category)
+ {
+ if(($category=trim($category))!=='')
+ $this->_categories[]=$category;
+ }
+ }
+ }
+
+ /**
+ * @param integer level value
+ * @return string level name
+ */
+ protected function getLevelName($level)
+ {
+ return isset(self::$_levelNames[$level])?self::$_levelNames[$level]:'Unknown';
+ }
+
+ /**
+ * @param string level name
+ * @return integer level value
+ */
+ protected function getLevelValue($level)
+ {
+ return isset(self::$_levelValues[$level])?self::$_levelValues[$level]:0;
+ }
+
+ /**
+ * Formats a log message given different fields.
+ * @param string message content
+ * @param integer message level
+ * @param string message category
+ * @param integer timestamp
+ * @return string formatted message
+ */
+ protected function formatLogMessage($message,$level,$category,$time)
+ {
+ return @date('M d H:i:s',$time).' ['.$this->getLevelName($level).'] ['.$category.'] '.$message."\n";
+ }
+
+ /**
+ * Retrieves log messages from logger to log route specific destination.
+ * @param TLogger logger instance
+ */
+ public function collectLogs(TLogger $logger)
+ {
+ $logs=$logger->getLogs($this->getLevels(),$this->getCategories());
+ if(!empty($logs))
+ $this->processLogs($logs);
+ }
+
+ /**
+ * Processes log messages and sends them to specific destination.
+ * Derived child classes must implement this method.
+ * @param array list of messages. Each array element is a (formatted) message string.
+ */
+ abstract protected function processLogs($logs);
+}
+
+/**
+ * TFileLogRoute class.
+ *
+ * TFileLogRoute records log messages in files.
+ * The log files are stored under {@link setLogPath LogPath} and the file name
+ * is specified by {@link setLogFile LogFile}. If the size of the log file is
+ * greater than {@link setMaxFileSize MaxFileSize} (in kilo-bytes), a rotation
+ * is performed, which renames the current log file by suffixing the file name
+ * with '.1'. All existing log files are moved backwards one place, i.e., '.2'
+ * to '.3', '.1' to '.2'. The property {@link setMaxLogFiles MaxLogFiles}
+ * specifies how many files to be kept.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TFileLogRoute extends TLogRoute
+{
+ /**
+ * @var integer maximum log file size
+ */
+ private $_maxFileSize=512; // in KB
+ /**
+ * @var integer number of log files used for rotation
+ */
+ private $_maxLogFiles=2;
+ /**
+ * @var string directory storing log files
+ */
+ private $_logPath=null;
+ /**
+ * @var string log file name
+ */
+ private $_logFile='prado.log';
+
+ /**
+ * @return string directory storing log files. Defaults to application runtime path.
+ */
+ public function getLogPath()
+ {
+ if($this->_logPath===null)
+ $this->_logPath=$this->getApplication()->getRuntimePath();
+ return $this->_logPath;
+ }
+
+ /**
+ * @param string directory (in namespace format) storing log files.
+ * @throws TConfigurationException if log path is invalid
+ */
+ public function setLogPath($value)
+ {
+ if(($this->_logPath=Prado::getPathOfNamespace($value))===null || !is_dir($this->_logPath) || !is_writable($this->_logPath))
+ throw new TConfigurationException('filelogroute_logpath_invalid',$value);
+ }
+
+ /**
+ * @return string log file name. Defaults to 'prado.log'.
+ */
+ public function getLogFile()
+ {
+ return $this->_logFile;
+ }
+
+ /**
+ * @param string log file name
+ */
+ public function setLogFile($value)
+ {
+ $this->_logFile=$value;
+ }
+
+ /**
+ * @return integer maximum log file size in kilo-bytes (KB). Defaults to 1024 (1MB).
+ */
+ public function getMaxFileSize()
+ {
+ return $this->_maxFileSize;
+ }
+
+ /**
+ * @param integer maximum log file size in kilo-bytes (KB).
+ * @throws TInvalidDataValueException if the value is smaller than 1.
+ */
+ public function setMaxFileSize($value)
+ {
+ $this->_maxFileSize=TPropertyValue::ensureInteger($value);
+ if($this->_maxFileSize<=0)
+ throw new TInvalidDataValueException('filelogroute_maxfilesize_invalid');
+ }
+
+ /**
+ * @return integer number of files used for rotation. Defaults to 2.
+ */
+ public function getMaxLogFiles()
+ {
+ return $this->_maxLogFiles;
+ }
+
+ /**
+ * @param integer number of files used for rotation.
+ */
+ public function setMaxLogFiles($value)
+ {
+ $this->_maxLogFiles=TPropertyValue::ensureInteger($value);
+ if($this->_maxLogFiles<1)
+ throw new TInvalidDataValueException('filelogroute_maxlogfiles_invalid');
+ }
+
+ /**
+ * Saves log messages in files.
+ * @param array list of log messages
+ */
+ protected function processLogs($logs)
+ {
+ $logFile=$this->getLogPath().'/'.$this->getLogFile();
+ if(@filesize($logFile)>$this->_maxFileSize*1024)
+ $this->rotateFiles();
+ foreach($logs as $log)
+ error_log($this->formatLogMessage($log[0],$log[1],$log[2],$log[3]),3,$logFile);
+ }
+
+ /**
+ * Rotates log files.
+ */
+ protected function rotateFiles()
+ {
+ $file=$this->getLogPath().'/'.$this->getLogFile();
+ for($i=$this->_maxLogFiles;$i>0;--$i)
+ {
+ $rotateFile=$file.'.'.$i;
+ if(is_file($rotateFile))
+ {
+ if($i===$this->_maxLogFiles)
+ unlink($rotateFile);
+ else
+ rename($rotateFile,$file.'.'.($i+1));
+ }
+ }
+ if(is_file($file))
+ rename($file,$file.'.1');
+ }
+}
+
+/**
+ * TEmailLogRoute class.
+ *
+ * TEmailLogRoute sends selected log messages to email addresses.
+ * The target email addresses may be specified via {@link setEmails Emails} property.
+ * Optionally, you may set the email {@link setSubject Subject} and the
+ * {@link setSentFrom SentFrom} address.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TEmailLogRoute extends TLogRoute
+{
+ /**
+ * Regex pattern for email address.
+ */
+ const EMAIL_PATTERN='/^([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/';
+ /**
+ * Default email subject.
+ */
+ const DEFAULT_SUBJECT='Prado Application Log';
+ /**
+ * @var array list of destination email addresses.
+ */
+ private $_emails=array();
+ /**
+ * @var string email subject
+ */
+ private $_subject='';
+ /**
+ * @var string email sent from address
+ */
+ private $_from='';
+
+ /**
+ * Initializes the route.
+ * @param TXmlElement configurations specified in {@link TLogRouter}.
+ * @throws TConfigurationException if {@link getSentFrom SentFrom} is empty and
+ * 'sendmail_from' in php.ini is also empty.
+ */
+ public function init($config)
+ {
+ if($this->_from==='')
+ $this->_from=ini_get('sendmail_from');
+ if($this->_from==='')
+ throw new TConfigurationException('emaillogroute_sentfrom_required');
+ }
+
+ /**
+ * Sends log messages to specified email addresses.
+ * @param array list of log messages
+ */
+ protected function processLogs($logs)
+ {
+ $message='';
+ foreach($logs as $log)
+ $message.=$this->formatLogMessage($log[0],$log[1],$log[2],$log[3]);
+ $message=wordwrap($message,70);
+ foreach($this->_emails as $email)
+ mail($email,$this->getSubject(),$message,"From:{$this->_from}\r\n");
+
+ }
+
+ /**
+ * @return array list of destination email addresses
+ */
+ public function getEmails()
+ {
+ return $this->_emails;
+ }
+
+ /**
+ * @return array|string list of destination email addresses. If the value is
+ * a string, it is assumed to be comma-separated email addresses.
+ */
+ public function setEmails($emails)
+ {
+ if(is_array($emails))
+ $this->_emails=$emails;
+ else
+ {
+ $this->_emails=array();
+ foreach(explode(',',$emails) as $email)
+ {
+ $email=trim($email);
+ if(preg_match(self::EMAIL_PATTERN,$email))
+ $this->_emails[]=$email;
+ }
+ }
+ }
+
+ /**
+ * @return string email subject. Defaults to TEmailLogRoute::DEFAULT_SUBJECT
+ */
+ public function getSubject()
+ {
+ if($this->_subject===null)
+ $this->_subject=self::DEFAULT_SUBJECT;
+ return $this->_subject;
+ }
+
+ /**
+ * @param string email subject.
+ */
+ public function setSubject($value)
+ {
+ $this->_subject=$value;
+ }
+
+ /**
+ * @return string send from address of the email
+ */
+ public function getSentFrom()
+ {
+ return $this->_from;
+ }
+
+ /**
+ * @param string send from address of the email
+ */
+ public function setSentFrom($value)
+ {
+ $this->_from=$value;
+ }
+}
+
+/**
+ * TBrowserLogRoute class.
+ *
+ * TBrowserLogRoute prints selected log messages in the response.
+ *
+ * @author Xiang Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TBrowserLogRoute extends TLogRoute
+{
+ public function processLogs($logs)
+ {
+ if(empty($logs) || $this->getApplication()->getMode()==='Performance') return;
+ $first = $logs[0][3];
+ $prev = $first;
+ $even = true;
+ $response = $this->getApplication()->getResponse();
+ $response->write($this->renderHeader());
+ foreach($logs as $log)
+ {
+ $timing['total'] = $log[3] - $first;
+ $timing['delta'] = $log[3] - $prev;
+ $timing['even'] = !($even = !$even);
+ $prev=$log[3];
+ $response->write($this->renderMessage($log,$timing));
+ }
+ $response->write($this->renderFooter());
+ }
+
+ protected function renderHeader()
+ {
+ $string = <<<EOD
+<table cellspacing="0" cellpadding="2" border="0" width="100%">
+ <tr>
+ <th style="background-color: black; color:white;" colspan="11">
+ Application Log
+ </th>
+ </tr><tr style="background-color: #ccc;">
+ <th> </th>
+ <th>Category</th><th>Message</th><th>Time Spent (s)</th><th>Cumulated Time Spent (s)</th>
+ </tr>
+EOD;
+ return $string;
+ }
+
+ protected function renderMessage($log, $info)
+ {
+ $bgcolor = $info['even'] ? "#fff" : "#eee";
+ $total = sprintf('%0.6f', $info['total']);
+ $delta = sprintf('%0.6f', $info['delta']);
+ $color = $this->getColorLevel($log[1]);
+ $msg = preg_replace('/\(line[^\)]+\)$/','',$log[0]); //remove line number info
+ $msg = THttpUtility::htmlEncode($msg);
+ $string = <<<EOD
+ <tr style="background-color: {$bgcolor};">
+ <td style="border:1px solid silver;background-color: $color;"> </td>
+ <td>{$log[2]}</td>
+ <td>{$msg}</td>
+ <td style="text-align:center">{$delta}</td>
+ <td style="text-align:center">{$total}</td>
+ </tr>
+EOD;
+ return $string;
+ }
+
+ protected function getColorLevel($level)
+ {
+ switch($level)
+ {
+ case TLogger::DEBUG: return 'green';
+ case TLogger::INFO: return 'black';
+ case TLogger::NOTICE: return '#3333FF';
+ case TLogger::WARNING: return '#33FFFF';
+ case TLogger::ERROR: return '#ff9933';
+ case TLogger::ALERT: return '#ff00ff';
+ case TLogger::FATAL: return 'red';
+ }
+ return '';
+ }
+
+ protected function renderFooter()
+ {
+ $string = "<tr><td colspan=\"11\" style=\"text-align:center; border-top: 1px solid #ccc; padding:0.2em;\">";
+ foreach(self::$_levelValues as $name => $level)
+ {
+ $string .= "<span style=\"color:white;background-color:".$this->getColorLevel($level);
+ $string .= ";margin: 0.5em;\">".strtoupper($name)."</span>";
+ }
+ $string .= "</td></tr></table>";
+ return $string;
+ }
+}
+?>
\ No newline at end of file |