text: <?php
  /**
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * This software consists of voluntary contributions made by many individuals
   * and is licensed under the LGPL. For more information please see
   * <http://phing.info>.
   */
  
  /**
   * This is a special logger that is designed to profile builds.
   *
   * @author  Siad Ardroumli <siad.ardroumli@gmail.com>
   * @package phing.listener
   */
  class ProfileLogger extends DefaultLogger
  {
      private $profileData = [];
  
      protected static $dateFormat = DATE_RFC2822;
  
      /**
       * Logs a message to say that the target has started.
       *
       * @param BuildEvent $event
       *            An event with any relevant extra information. Must not be
       *            <code>null</code>.
       */
      public function targetStarted(BuildEvent $event)
      {
          if (@date_default_timezone_get() === 'UTC') {
              date_default_timezone_set('Europe/Berlin');
          }
          $now = Phing::currentTimeMillis();
          $name = "Target " . $event->getTarget()->getName();
          $this->logStart($event, $now, $name);
          $this->profileData[] = $now;
      }
  
      /**
       * Logs a message to say that the target has finished.
       *
       * @param BuildEvent $event
       *            An event with any relevant extra information. Must not be
       *            <code>null</code>.
       */
      public function targetFinished(BuildEvent $event)
      {
          $start = array_pop($this->profileData);
  
          $name = "Target " . $event->getTarget()->getName();
          $this->logFinish($event, $start, $name);
      }
  
      /**
       * Logs a message to say that the task has started.
       *
       * @param BuildEvent $event
       *            An event with any relevant extra information. Must not be
       *            <code>null</code>.
       */
      public function taskStarted(BuildEvent $event)
      {
          $name = $event->getTask()->getTaskName();
          $now = Phing::currentTimeMillis();
          $this->logStart($event, $now, $name);
          $this->profileData[] = $now;
      }
  
      /**
       * Logs a message to say that the task has finished.
       *
       * @param BuildEvent $event
       *            An event with any relevant extra information. Must not be
       *            <code>null</code>.
       */
      public function taskFinished(BuildEvent $event)
      {
          $start = array_pop($this->profileData);
  
          $name = $event->getTask()->getTaskName();
          $this->logFinish($event, $start, $name);
      }
  
      private function logFinish(BuildEvent $event, $start, $name)
      {
          $msg = null;
          if ($start != null) {
              $diff = self::formatTime(Phing::currentTimeMillis() - $start);
              $msg = Phing::getProperty("line.separator") . $name . ": finished "
                  . date(self::$dateFormat, time()) . " ("
                  . $diff
                  . ")";
          } else {
              $msg = Phing::getProperty("line.separator") . $name . ": finished " . date(self::$dateFormat, time())
                  . " (unknown duration, start not detected)";
          }
          $this->printMessage($msg, $this->out, $event->getPriority());
      }
  
      private function logStart(BuildEvent $event, $start, $name)
      {
          $msg = Phing::getProperty("line.separator") . $name . ": started " . date(self::$dateFormat, $start);
          $this->printMessage($msg, $this->out, $event->getPriority());
      }
  }
  