added timing observer

Author: Patrick Leckey

src/Intouch/LaravelNewrelic/Observers/NewrelicTimingObserver.php

@@ -0,0 +1,178 @@
+<?php
+/**
+ * Copyright (c)2015 In-Touch Insight Systems Inc.  All rights reserved.
+ *
+ * Date: 15-03-11
+ * Time: 11:28 AM
+ *
+ * @author  pleckey
+ * @project laravel-newrelic
+ */
+
+namespace Intouch\LaravelNewrelic\Observers;
+
+class NewrelicTimingObserver
+{
+
+	/**
+	 * Custom Metric name
+	 *
+	 * @var string|null
+	 */
+	protected $name;
+
+	/**
+	 * The list of observable events we care about
+	 *
+	 * @var array
+	 */
+	protected $care = [
+		'created',
+		'saved',
+		'deleted',
+		'updated',
+		'restored',
+	];
+
+	/**
+	 * The list of observable events we are able to care about
+	 *
+	 * @var array
+	 */
+	protected $valid = [
+		'created',
+		'saved',
+		'deleted',
+		'updated',
+		'restored',
+	];
+
+	/**
+	 * Static storage for the timing values
+	 *
+	 * @var array
+	 */
+	protected static $times = [ ];
+
+	/**
+	 * @param string|null $name
+	 * @param array       $care
+	 */
+	public function __construct( $name = null, array $care = [ ] )
+	{
+		$this->name = $name;
+		if (count( $care ) > 0) {
+			$this->care = array_intersect( $this->valid, $care );
+		}
+	}
+
+	protected function getMetricName( $model, $event )
+	{
+		return 'Custom/Timing/' . ltrim( $this->name ?: get_class( $model ), '/' ) . '/' . $event;
+	}
+
+	/**
+	 * Grab the time creating started
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function creating( $model )
+	{
+		static::$times['create'] = -microtime( true );
+	}
+
+	/**
+	 * Grab the time saving started
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function saving( $model )
+	{
+		static::$times['save'] = -microtime( true );
+	}
+
+	/**
+	 * Grab the time deleting started
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function deleting( $model )
+	{
+		static::$times['delete'] = -microtime( true );
+	}
+
+	/**
+	 * Grab the time updating started
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function updating( $model )
+	{
+		static::$times['update'] = -microtime( true );
+	}
+
+	/**
+	 * Grab the time restoring started
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function restoring( $model )
+	{
+		static::$times['restore'] = -microtime( true );
+	}
+
+	/**
+	 * Record the time it took to create
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function created( $model )
+	{
+		$ms = round( static::$times['create'] + microtime( true ), 3 ) * 1000;
+		\Newrelic::customMetric( $this->getMetricName( $model, 'created' ), $ms );
+	}
+
+	/**
+	 * Record the time it took to save
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function saved( $model )
+	{
+		$ms = round( static::$times['save'] + microtime( true ), 3 ) * 1000;
+		\Newrelic::customMetric( $this->getMetricName( $model, 'saved' ), $ms );
+	}
+
+	/**
+	 * Record the time it took to delete
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function deleted( $model )
+	{
+		$ms = round( static::$times['delete'] + microtime( true ), 3 ) * 1000;
+		\Newrelic::customMetric( $this->getMetricName( $model, 'deleted' ), $ms );
+	}
+
+	/**
+	 * Record the time it took to update
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function updated( $model )
+	{
+		$ms = round( static::$times['update'] + microtime( true ), 3 ) * 1000;
+		\Newrelic::customMetric( $this->getMetricName( $model, 'updated' ), $ms );
+	}
+
+	/**
+	 * Record the time it took to restore
+	 *
+	 * @param Illuminate\Database\Eloquent\Model $model
+	 */
+	public function restored( $model )
+	{
+		$ms = round( static::$times['restore'] + microtime( true ), 3 ) * 1000;
+		\Newrelic::customMetric( $this->getMetricName( $model, 'restored' ), $ms );
+	}
+}