<?php  /**  * Loggers sessions are sets of logged messages. They are introduces so logger can   * handle multiple events at the same time without mixing the messages  *  * @package Logger  * @http://www.projectpier.org/  */  class Logger_Session {      /**    * Session name    *    * @var string    */    private $name;        /**    * Minimal severity that will be logged. In debug mode it would be Logger::DEBUG, in production it should be Logger::FATAL    *    * @var integer    */    private $min_severity;        /**    * Start time of the session    *    * @var float    */    private $session_start;        /**    * Array of log entries    *    * @var array    */    private $entries = array();        /**    * Constructor    *    * @param string $name Session name    * @param integer $severity Min serverity that will be logged    * @return Logger_Session    */    function __construct($name = Logger::DEFAULT_SESSION_NAME, $severity = Logger::DEBUG) {      $this->setName($name);      $this->setMinSeverity($severity);      $this->session_start = microtime(true);    } // __construct        /**    * Return true if this session is empty    *    * @param void    * @return boolean    */    function isEmpty() {      return count($this->entries) < 1;    } // isEmpty        // ---------------------------------------------------    //  Getters and setters    // ---------------------------------------------------        /**    * Get name    *    * @param null    * @return string    */    function getName() {      return $this->name;    } // getName        /**    * Set name value    *    * @param string $value    * @return null    */    function setName($value) {      $this->name = $value;    } // setName        /**    * Get min_severity    *    * @param null    * @return integer    */    function getMinSeverity() {      return $this->min_severity;    } // getMinSeverity        /**    * Set min_severity value    *    * @param integer $value    * @return null    */    function setMinSeverity($value) {      $this->min_severity = $value;    } // setMinSeverity        /**    * Return session start time (it is calculated in the constructor). Session start is unix     * timestamp with microtimes as part of the second    *    * @param void    * @return float    */    function getSessionStart() {      return $this->session_start;    } // getSessionStart        /**    * Return entries    *    * @param void    * @return array    */    function getEntries() {      return $this->entries;    } // getEntries        /**    * Add entry to the session    *    * @param Logger_Entry $entry    * @return null    */    function addEntry(Logger_Entry $entry) {      if ($entry->getSeverity() >= $this->getMinSeverity()) {        $this->entries[] = $entry;        return true;      } // if      return false;    } // addEntry    } // Logger_Session?>