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vendor/yiisoft/yii2-debug/panels/TimelinePanel.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\debug\panels;
+
+use Yii;
+use yii\debug\Panel;
+use yii\debug\models\timeline\Search;
+use yii\debug\models\timeline\Svg;
+use yii\base\InvalidConfigException;
+
+/**
+ * Debugger panel that collects and displays timeline data.
+ *
+ * @property array $colors
+ * @property float $duration This property is read-only.
+ * @property float $start This property is read-only.
+ * @property array $svgOptions
+ *
+ * @author Dmitriy Bashkarev <dmitriy@bashkarev.com>
+ * @since 2.0.7
+ */
+class TimelinePanel extends Panel
+{
+    /**
+     * @var array Color indicators item profile.
+     *
+     * - keys: percentages of time request
+     * - values: hex color
+     */
+    private $_colors = [
+        20 => '#1e6823',
+        10 => '#44a340',
+        1 => '#8cc665'
+    ];
+    /**
+     * @var array log messages extracted to array as models, to use with data provider.
+     */
+    private $_models;
+    /**
+     * @var float Start request, timestamp (obtained by microtime(true))
+     */
+    private $_start;
+    /**
+     * @var float End request, timestamp (obtained by microtime(true))
+     */
+    private $_end;
+    /**
+     * @var float Request duration, milliseconds
+     */
+    private $_duration;
+    /**
+     * @var Svg|null
+     */
+    private $_svg;
+    /**
+     * @var array
+     */
+    private $_svgOptions = [
+        'class' => 'yii\debug\models\timeline\Svg'
+    ];
+    /**
+     * @var int Used memory in request
+     */
+    private $_memory;
+
+
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        if (!isset($this->module->panels['profiling'])) {
+            throw new InvalidConfigException('Unable to determine the profiling panel');
+        }
+        parent::init();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getName()
+    {
+        return 'Timeline';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDetail()
+    {
+        $searchModel = new Search();
+        $dataProvider = $searchModel->search(Yii::$app->request->getQueryParams(), $this);
+
+        return Yii::$app->view->render('panels/timeline/detail', [
+            'panel' => $this,
+            'dataProvider' => $dataProvider,
+            'searchModel' => $searchModel,
+        ]);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function load($data)
+    {
+        if (!isset($data['start']) || empty($data['start'])) {
+            throw new \RuntimeException('Unable to determine request start time');
+        }
+        $this->_start = $data['start'] * 1000;
+
+        if (!isset($data['end']) || empty($data['end'])) {
+            throw new \RuntimeException('Unable to determine request end time');
+        }
+        $this->_end = $data['end'] * 1000;
+
+        if (isset($this->module->panels['profiling']->data['time'])) {
+            $this->_duration = $this->module->panels['profiling']->data['time'] * 1000;
+        } else {
+            $this->_duration = $this->_end - $this->_start;
+        }
+
+        if ($this->_duration <= 0) {
+            throw new \RuntimeException('Duration cannot be zero');
+        }
+
+        if (!isset($data['memory']) || empty($data['memory'])) {
+            throw new \RuntimeException('Unable to determine used memory in request');
+        }
+        $this->_memory = $data['memory'];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function save()
+    {
+        return [
+            'start' => YII_BEGIN_TIME,
+            'end' => microtime(true),
+            'memory' => memory_get_peak_usage(),
+        ];
+    }
+
+    /**
+     * Sets color indicators.
+     * key: percentages of time request, value: hex color
+     * @param array $colors
+     */
+    public function setColors($colors)
+    {
+        krsort($colors);
+        $this->_colors = $colors;
+    }
+
+    /**
+     * Color indicators item profile,
+     * key: percentages of time request, value: hex color
+     * @return array
+     */
+    public function getColors()
+    {
+        return $this->_colors;
+    }
+
+    /**
+     * @param array $options
+     */
+    public function setSvgOptions($options)
+    {
+        if ($this->_svg !== null) {
+            $this->_svg = null;
+        }
+        $this->_svgOptions = array_merge($this->_svgOptions, $options);
+    }
+
+    /**
+     * @return array
+     */
+    public function getSvgOptions()
+    {
+        return $this->_svgOptions;
+    }
+
+    /**
+     * Start request, timestamp (obtained by microtime(true))
+     * @return float
+     */
+    public function getStart()
+    {
+        return $this->_start;
+    }
+
+    /**
+     * Request duration, milliseconds
+     * @return float
+     */
+    public function getDuration()
+    {
+        return $this->_duration;
+    }
+
+    /**
+     * Memory peak in request, bytes. (obtained by memory_get_peak_usage())
+     * @return int
+     * @since 2.0.8
+     */
+    public function getMemory()
+    {
+        return $this->_memory;
+    }
+
+    /**
+     * @return Svg
+     * @since 2.0.8
+     */
+    public function getSvg()
+    {
+        if ($this->_svg === null) {
+            $this->_svg = Yii::createObject($this->_svgOptions,[$this]);
+        }
+        return $this->_svg;
+    }
+
+    /**
+     * Returns an array of models that represents logs of the current request.
+     * Can be used with data providers, such as \yii\data\ArrayDataProvider.
+     *
+     * @param bool $refresh if need to build models from log messages and refresh them.
+     * @return array models
+     */
+    protected function getModels($refresh = false)
+    {
+        if ($this->_models === null || $refresh) {
+            $this->_models = [];
+            if (isset($this->module->panels['profiling']->data['messages'])) {
+                $this->_models = Yii::getLogger()->calculateTimings($this->module->panels['profiling']->data['messages']);
+            }
+        }
+        return $this->_models;
+    }
+
+}