added timestamp output class for console

Console/Output/ConsoleTimestampOutput.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace EightPoints\Bundle\AssistBundle\Console\Output;
+
+use Symfony\Component\Console\Output\ConsoleOutput,
+    Symfony\Component\Console\Formatter\OutputFormatterInterface,
+    Symfony\Component\Console\Output\ConsoleOutputInterface;
+
+/**
+ * ConsoleTimestampOutput
+ * Adds timestamp to each written line in console
+ *
+ * @package   EightPoints\Bundle\AssistBundle\Console\Output
+ *
+ * @copyright 8points IT
+ * @author    Florian Preusner
+ *
+ * @version   1.0
+ * @since     2013-11
+ */
+class ConsoleTimestampOutput extends ConsoleOutput implements ConsoleOutputInterface {
+
+    /**
+     * @var float $lastTime
+     */
+    protected $lastTime = 0;
+
+    /**
+     * Construct
+     *
+     * @author  Florian Preusner
+     * @version 1.0
+     * @since   2013-11
+     *
+     * @param   integer                  $verbosity the verbosity level
+     * @param   boolean                  $decorated whether to decorate messages or not (null for auto-guessing)
+     * @param   OutputFormatterInterface $formatter output formatter instance
+     */
+    public function __construct($verbosity = self::VERBOSITY_NORMAL, $decorated = null, OutputFormatterInterface $formatter = null) {
+
+        $this->lastTime = microtime(true);
+
+        parent::__construct($verbosity = self::VERBOSITY_NORMAL, $decorated = null, $formatter = null);
+    }
+
+    /**
+     * Write message
+     *
+     * @author  Florian Preusner
+     * @version 1.0
+     * @since   2013-11
+     *
+     * @param   string $message
+     * @param   @todo  $newline
+     *
+     * @return  void
+     */
+    protected function doWrite($message, $newline) {
+
+        $message = $this->addTimeStamp($message);
+
+        parent::doWrite($message, $newline);
+    }
+
+    /**
+     * Add timestamp/duration to given string
+     *
+     * @author  Florian Preusner
+     * @version 1.0
+     * @since   2013-11
+     *
+     * @param   string $message
+     * @return  string $message
+     */
+    protected function addTimeStamp($message) {
+
+        $now     = microtime(true);
+        $diff    = number_format($now - $this->lastTime, 3);
+        $prefix  = sprintf('[%s :: %f]', date('H:i:s'), $diff);
+        $message = str_pad($prefix, 25) . $message;
+
+        $this->lastTime = microtime(true);
+
+        return $message;
+    }
+}

README.md

@@ -35,8 +35,21 @@ Helpers
 
 CommandTimestampOutput
 ----------------------
-Description is following...
+To use a timestamp for each printed line on your command just inject the CommandTimestampOutput into your console application.
+app/console
+``` php
+use EightPoints\Bundle\AssistBundle\Console\Output\ConsoleTimestampOutput;
+
+$output = new ConsoleTimestampOutput();
+...
+$application->run($input, $output);
+```
 
+Example output:
+``` 
+[20:09:30 :: 0.002]     Starting import...
+[20:09:31 :: 8.058]     Finished import
+```
 
 Authors
 -------