LiveProfiler::getMode() - Code Metrics - Inspection of "Added possibility to save profiles in the files" - badoo/liveprof - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 081dfd...1825d7 )

by Shagiakhmetov

created 2019-02-18 19:21 UTC

LiveProfiler::getMode() A

↳ Parent: Project

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0
crap	1

<?php

/**
 * @maintainer Timur Shagiakhmetov <[email protected]>
 */

namespace Badoo\LiveProfiler;

use Doctrine\DBAL\Connection;
use Doctrine\DBAL\DBALException;
use Psr\Log\LoggerInterface;

class LiveProfiler
{
    CONST MODE_DB = 'db';

    CONST MODE_FILES = 'files';


    /** @var LiveProfiler */
    protected static $instance;
    /** @var string */
    protected $mode = self::MODE_DB;
    /** @var string */
    protected $path = '';
    /** @var Connection */
    protected $Conn;
    /** @var LoggerInterface */
    protected $Logger;
    /** @var DataPackerInterface */
    protected $DataPacker;
    /** @var string */
    protected $connection_string;
    /** @var string */
    protected $app;
    /** @var string */
    protected $label;
    /** @var string */
    protected $datetime;
    /** @var int */
    protected $divider = 1000;
    /** @var int */
    protected $total_divider = 10000;
    /** @var callable callback to start profiling */
    protected $start_callback;
    /** @var callable callback to end profiling */
    protected $end_callback;
    /** @var bool */
    protected $is_enabled = false;
    /** @var array */
    protected $last_profile_data = [];

    /**
     * LiveProfiler constructor.
     * @param string $connection_string_or_path
     * @param string $mode
     */
    public function __construct($connection_string_or_path = '', $mode = self::MODE_DB)
    {
        $this->mode = $mode;

        $this->app = 'Default';
        $this->label = $this->getAutoLabel();
        $this->datetime = date('Y-m-d H:i:s');

        $this->detectProfiler();
        $this->Logger = new Logger();
        $this->DataPacker = new DataPacker();

        if ($mode === self::MODE_DB) {
            $this->connection_string = $connection_string_or_path ?: getenv('LIVE_PROFILER_CONNECTION_URL');
        } else {
            $this->setPath($connection_string_or_path ?: getenv('LIVE_PROFILER_PATH'));
        }
    }

    public static function getInstance($connection_string = '', $mode = self::MODE_DB)
    {
        if (self::$instance === null) {
            self::$instance = new static($connection_string, $mode);
        }

        return self::$instance;
    }

    public function start()
    {
        if ($this->is_enabled) {
            return true;
        }

        if (null === $this->start_callback) {
            return true;
        }

        if ($this->needToStart($this->divider)) {
            $this->is_enabled = true;
        } elseif ($this->needToStart($this->total_divider)) {
            $this->is_enabled = true;
            $this->label = 'All';
        }

        if ($this->is_enabled) {
            register_shutdown_function([$this, 'end']);
            call_user_func($this->start_callback);
        }

        return true;
    }

    /**
     * @return bool
     */
    public function end()
    {
        if (!$this->is_enabled) {
            return true;
        }

        $this->is_enabled = false;

        if (null === $this->end_callback) {
            return true;
        }

        $data = call_user_func($this->end_callback);
        if (!is_array($data)) {
            $this->Logger->warning('Invalid profiler data: ' . var_export($data, true));
            return false;
        }

        $this->last_profile_data = $data;
        $result = $this->save($this->app, $this->label, $this->datetime, $data);

        if (!$result) {
            $this->Logger->warning('Can\'t insert profile data');
        }

        return $result;
    }

    public function detectProfiler()
    {
        if (function_exists('xhprof_enable')) {
            return $this->useXhprof();
        }

        if (function_exists('tideways_xhprof_enable')) {
            return $this->useTidyWays();
        }

        if (function_exists('uprofiler_enable')) {
            return $this->useUprofiler();
        }

        return false;
    }

    public function useXhprof()
    {
        if ($this->is_enabled) {
            $this->Logger->warning('can\'t change profiler after profiling started');
            return false;
        }

        $this->start_callback = function () {
            xhprof_enable(XHPROF_FLAGS_MEMORY | XHPROF_FLAGS_CPU);
        };

        $this->end_callback = function () {
            return xhprof_disable();
        };

        return true;
    }

    public function useTidyWays()
    {
        if ($this->is_enabled) {
            $this->Logger->warning('can\'t change profiler after profiling started');
            return false;
        }

        $this->start_callback = function () {
            tideways_xhprof_enable(TIDEWAYS_XHPROF_FLAGS_MEMORY | TIDEWAYS_XHPROF_FLAGS_CPU);
        };

        $this->end_callback = function () {
            return tideways_xhprof_disable();
        };

        return true;
    }

    public function useUprofiler()
    {
        if ($this->is_enabled) {
            $this->Logger->warning('can\'t change profiler after profiling started');
            return false;
        }

        $this->start_callback = function () {
            uprofiler_enable(UPROFILER_FLAGS_CPU | UPROFILER_FLAGS_MEMORY);
        };

        $this->end_callback = function () {
            return uprofiler_disable();
        };

        return true;
    }

    /**
     * @return bool
     */
    public function reset()
    {
        if ($this->is_enabled) {
            call_user_func($this->end_callback);
            $this->is_enabled = false;
        }

        return true;
    }

    /**
     * @param string $mode
     * @return $this
     */
    public function setMode($mode)
    {
        $this->mode = $mode;
        return $this;
    }

    /**
     * @return string
     */
    public function getMode()
    {
        return $this->mode;
    }

    /**
     * @param string $path
     * @return $this
     */
    public function setPath($path)
    {
        if (!is_dir($path)) {
            $this->Logger->error('Directory ' . $path . ' does not exists');
        }

        $this->path = $path;
        return $this;
    }

    /**
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * @param string $app
     * @return $this
     */
    public function setApp($app)
    {
        $this->app = $app;
        return $this;
    }

    /**
     * @return string
     */
    public function getApp()
    {
        return $this->app;
    }

    /**
     * @param string $label
     * @return $this
     */
    public function setLabel($label)
    {
        $this->label = $label;
        return $this;
    }

    /**
     * @return string
     */
    public function getLabel()
    {
        return $this->label;
    }

    /**
     * @param string $datetime
     * @return $this
     */
    public function setDateTime($datetime)
    {
        $this->datetime = $datetime;
        return $this;
    }

    /**
     * @return string
     */
    public function getDateTime()
    {
        return $this->datetime;
    }

    /**
     * @param int $divider
     * @return $this
     */
    public function setDivider($divider)
    {
        $this->divider = $divider;
        return $this;
    }

    /**
     * @param int $total_divider
     * @return $this
     */
    public function setTotalDivider($total_divider)
    {
        $this->total_divider = $total_divider;
        return $this;
    }

    /**
     * @param \Closure $start_callback
     * @return $this
     */
    public function setStartCallback(\Closure $start_callback)
    {
        $this->start_callback = $start_callback;
        return $this;
    }

    /**
     * @param \Closure $end_callback
     * @return $this
     */
    public function setEndCallback(\Closure $end_callback)
    {
        $this->end_callback = $end_callback;
        return $this;
    }

    /**
     * @param LoggerInterface $Logger
     * @return $this
     */
    public function setLogger(LoggerInterface $Logger)
    {
        $this->Logger = $Logger;
        return $this;
    }

    /**
     * @param DataPackerInterface $DataPacker
     * @return $this
     */
    public function setDataPacker($DataPacker)
    {
        $this->DataPacker = $DataPacker;
        return $this;
    }

    /**
     * @return array
     */
    public function getLastProfileData()
    {
        return $this->last_profile_data;
    }

    /**
     * @return Connection
     * @throws DBALException
     */
    protected function getConnection()
    {
        if (null === $this->Conn) {
            $config = new \Doctrine\DBAL\Configuration();
            $connectionParams = ['url' => $this->connection_string];
            $this->Conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams, $config);
        }

        return $this->Conn;
    }

    /**
     * @param Connection $Conn
     * @return $this
     */
    public function setConnection(Connection $Conn)
    {
        $this->Conn = $Conn;
        return $this;
    }

    /**
     * @param string $connection_string
     * @return $this
     */
    public function setConnectionString($connection_string)
    {
        $this->connection_string = $connection_string;
        return $this;
    }

    /**
     * @param string $app
     * @param string $label
     * @param string $datetime
     * @param array $data
     * @return bool
     */
    protected function save($app, $label, $datetime, $data)
    {
        if ($this->mode === self::MODE_DB) {
            return $this->saveToDB($app, $label, $datetime, $data);
        }

        return $this->saveToFile($app, $label, $datetime, $data);
    }

    /**
     * @param string $app
     * @param string $label
     * @param string $datetime
     * @param array $data
     * @return bool
     */
    protected function saveToDB($app, $label, $datetime, $data)
    {
        $packed_data = $this->DataPacker->pack($data);

        try {
            return (bool)$this->getConnection()->insert(
                'details',
                [
                    'app' => $app,
                    'label' => $label,
                    'perfdata' => $packed_data,
                    'timestamp' => $datetime
                ]
            );
        } catch (DBALException $Ex) {
            $this->Logger->error('Error in insertion profile data: ' . $Ex->getMessage());
            return false;
        }
    }

    /**
     * @param string $app
     * @param string $label
     * @param string $datetime
     * @param array $data
     * @return bool
     */
    private function saveToFile($app, $label, $datetime, $data)
    {
        $path = sprintf('%s/%s/%s', $this->path, $app, base64_encode($label));

        if (!is_dir($path) && !mkdir($path, 0755, true) && !is_dir($path)) {
            $this->Logger->error('Directory "'. $path .'" was not created');
            return false;
        }

        $filename = sprintf('%s/%s.json', $path, strtotime($datetime));
        $packed_data = $this->DataPacker->pack($data);
        return (bool)file_put_contents($filename, $packed_data);
    }

    /**
     * @throws DBALException
     */
    public function createTable()
    {
        $driver_name = $this->getConnection()->getDriver()->getName();
        $sql_path = __DIR__ . '/../../../bin/install_data/' . $driver_name . '/source.sql';
        if (!file_exists($sql_path)) {
            $this->Logger->error('Invalid sql path:' . $sql_path);
            return false;
        }

        $sql = file_get_contents($sql_path);

        $this->getConnection()->exec($sql);
        return true;
    }

    /**
     * @return string
     */
    protected function getAutoLabel()
    {
        if (!empty($_SERVER['REQUEST_URI'])) {
            $label = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
            return $label ?: $_SERVER['REQUEST_URI'];
        }

        return $_SERVER['SCRIPT_NAME'];
    }

    /**
     * @param int $divider
     * @return bool
     */
    protected function needToStart($divider)
    {
        return mt_rand(1, $divider) === 1;
    }
}


1		<?php
2
3		/**
4		* @maintainer Timur Shagiakhmetov <[email protected]>
5		*/
6
7		namespace Badoo\LiveProfiler;
8
9		use Doctrine\DBAL\Connection;
10		use Doctrine\DBAL\DBALException;
11		use Psr\Log\LoggerInterface;
12
13		class LiveProfiler
14		{
15		CONST MODE_DB = 'db';
		0 ignored issues – show Coding Style introduced 2019-02-18 19:23 UTC by Report Bug Copy Issue Report As per coding-style, PHP keywords should be in lowercase; expected `const`, but found `CONST`. Loading history...
16		CONST MODE_FILES = 'files';
		0 ignored issues – show Coding Style introduced 2019-02-18 19:23 UTC by Report Bug Copy Issue Report As per coding-style, PHP keywords should be in lowercase; expected `const`, but found `CONST`. Loading history...
17
18		/** @var LiveProfiler */
19		protected static $instance;
20		/** @var string */
21		protected $mode = self::MODE_DB;
22		/** @var string */
23		protected $path = '';
24		/** @var Connection */
25		protected $Conn;
26		/** @var LoggerInterface */
27		protected $Logger;
28		/** @var DataPackerInterface */
29		protected $DataPacker;
30		/** @var string */
31		protected $connection_string;
32		/** @var string */
33		protected $app;
34		/** @var string */
35		protected $label;
36		/** @var string */
37		protected $datetime;
38		/** @var int */
39		protected $divider = 1000;
40		/** @var int */
41		protected $total_divider = 10000;
42		/** @var callable callback to start profiling */
43		protected $start_callback;
44		/** @var callable callback to end profiling */
45		protected $end_callback;
46		/** @var bool */
47		protected $is_enabled = false;
48		/** @var array */
49		protected $last_profile_data = [];
50
51		/**
52		* LiveProfiler constructor.
53		* @param string $connection_string_or_path
54		* @param string $mode
55		*/
56	15	public function __construct($connection_string_or_path = '', $mode = self::MODE_DB)
57		{
58	15	$this->mode = $mode;
59
60	15	$this->app = 'Default';
61	15	$this->label = $this->getAutoLabel();
62	15	$this->datetime = date('Y-m-d H:i:s');
63
64	15	$this->detectProfiler();
65	15	$this->Logger = new Logger();
66	15	$this->DataPacker = new DataPacker();
67
68	15	if ($mode === self::MODE_DB) {
69	14	$this->connection_string = $connection_string_or_path ?: getenv('LIVE_PROFILER_CONNECTION_URL');
70		} else {
71	1	$this->setPath($connection_string_or_path ?: getenv('LIVE_PROFILER_PATH'));
72		}
73	15	}
74
75	1	public static function getInstance($connection_string = '', $mode = self::MODE_DB)
76		{
77	1	if (self::$instance === null) {
78	1	self::$instance = new static($connection_string, $mode);
79		}
80
81	1	return self::$instance;
82		}
83
84	7	public function start()
85		{
86	7	if ($this->is_enabled) {
87	1	return true;
88		}
89
90	6	if (null === $this->start_callback) {
91	1	return true;
92		}
93
94	5	if ($this->needToStart($this->divider)) {
95	4	$this->is_enabled = true;
96	1	} elseif ($this->needToStart($this->total_divider)) {
97	1	$this->is_enabled = true;
98	1	$this->label = 'All';
99		}
100
101	5	if ($this->is_enabled) {
102	5	register_shutdown_function([$this, 'end']);
103	5	call_user_func($this->start_callback);
104		}
105
106	5	return true;
107		}
108
109		/**
110		* @return bool
111		*/
112	6	public function end()
113		{
114	6	if (!$this->is_enabled) {
115	1	return true;
116		}
117
118	5	$this->is_enabled = false;
119
120	5	if (null === $this->end_callback) {
121	1	return true;
122		}
123
124	4	$data = call_user_func($this->end_callback);
125	4	if (!is_array($data)) {
126	1	$this->Logger->warning('Invalid profiler data: ' . var_export($data, true));
127	1	return false;
128		}
129
130	3	$this->last_profile_data = $data;
131	3	$result = $this->save($this->app, $this->label, $this->datetime, $data);
132
133	3	if (!$result) {
134	2	$this->Logger->warning('Can\'t insert profile data');
135		}
136
137	3	return $result;
138		}
139
140	16	public function detectProfiler()
141		{
142	16	if (function_exists('xhprof_enable')) {
143		return $this->useXhprof();
144		}
145
146	16	if (function_exists('tideways_xhprof_enable')) {
147		return $this->useTidyWays();
148		}
149
150	16	if (function_exists('uprofiler_enable')) {
151		return $this->useUprofiler();
152		}
153
154	16	return false;
155		}
156
157	2	public function useXhprof()
158		{
159	2	if ($this->is_enabled) {
160	1	$this->Logger->warning('can\'t change profiler after profiling started');
161	1	return false;
162		}
163
164		$this->start_callback = function () {
165		xhprof_enable(XHPROF_FLAGS_MEMORY \| XHPROF_FLAGS_CPU);
166		};
167
168		$this->end_callback = function () {
169		return xhprof_disable();
170		};
171
172	1	return true;
173		}
174
175	2	public function useTidyWays()
176		{
177	2	if ($this->is_enabled) {
178	1	$this->Logger->warning('can\'t change profiler after profiling started');
179	1	return false;
180		}
181
182		$this->start_callback = function () {
183		tideways_xhprof_enable(TIDEWAYS_XHPROF_FLAGS_MEMORY \| TIDEWAYS_XHPROF_FLAGS_CPU);
184		};
185
186		$this->end_callback = function () {
187		return tideways_xhprof_disable();
188		};
189
190	1	return true;
191		}
192
193	2	public function useUprofiler()
194		{
195	2	if ($this->is_enabled) {
196	1	$this->Logger->warning('can\'t change profiler after profiling started');
197	1	return false;
198		}
199
200		$this->start_callback = function () {
201		uprofiler_enable(UPROFILER_FLAGS_CPU \| UPROFILER_FLAGS_MEMORY);
202		};
203
204		$this->end_callback = function () {
205		return uprofiler_disable();
206		};
207
208	1	return true;
209		}
210
211		/**
212		* @return bool
213		*/
214	1	public function reset()
215		{
216	1	if ($this->is_enabled) {
217	1	call_user_func($this->end_callback);
218	1	$this->is_enabled = false;
219		}
220
221	1	return true;
222		}
223
224		/**
225		* @param string $mode
226		* @return $this
227		*/
228	1	public function setMode($mode)
229		{
230	1	$this->mode = $mode;
231	1	return $this;
232		}
233
234		/**
235		* @return string
236		*/
237	1	public function getMode()
238		{
239	1	return $this->mode;
240		}
241
242		/**
243		* @param string $path
244		* @return $this
245		*/
246	2	public function setPath($path)
247		{
248	2	if (!is_dir($path)) {
249	1	$this->Logger->error('Directory ' . $path . ' does not exists');
250		}
251
252	2	$this->path = $path;
253	2	return $this;
254		}
255
256		/**
257		* @return string
258		*/
259	1	public function getPath()
260		{
261	1	return $this->path;
262		}
263
264		/**
265		* @param string $app
266		* @return $this
267		*/
268	1	public function setApp($app)
269		{
270	1	$this->app = $app;
271	1	return $this;
272		}
273
274		/**
275		* @return string
276		*/
277	1	public function getApp()
278		{
279	1	return $this->app;
280		}
281
282		/**
283		* @param string $label
284		* @return $this
285		*/
286	1	public function setLabel($label)
287		{
288	1	$this->label = $label;
289	1	return $this;
290		}
291
292		/**
293		* @return string
294		*/
295	1	public function getLabel()
296		{
297	1	return $this->label;
298		}
299
300		/**
301		* @param string $datetime
302		* @return $this
303		*/
304	1	public function setDateTime($datetime)
305		{
306	1	$this->datetime = $datetime;
307	1	return $this;
308		}
309
310		/**
311		* @return string
312		*/
313	1	public function getDateTime()
314		{
315	1	return $this->datetime;
316		}
317
318		/**
319		* @param int $divider
320		* @return $this
321		*/
322	5	public function setDivider($divider)
323		{
324	5	$this->divider = $divider;
325	5	return $this;
326		}
327
328		/**
329		* @param int $total_divider
330		* @return $this
331		*/
332	2	public function setTotalDivider($total_divider)
333		{
334	2	$this->total_divider = $total_divider;
335	2	return $this;
336		}
337
338		/**
339		* @param \Closure $start_callback
340		* @return $this
341		*/
342	5	public function setStartCallback(\Closure $start_callback)
343		{
344	5	$this->start_callback = $start_callback;
345	5	return $this;
346		}
347
348		/**
349		* @param \Closure $end_callback
350		* @return $this
351		*/
352	5	public function setEndCallback(\Closure $end_callback)
353		{
354	5	$this->end_callback = $end_callback;
355	5	return $this;
356		}
357
358		/**
359		* @param LoggerInterface $Logger
360		* @return $this
361		*/
362	8	public function setLogger(LoggerInterface $Logger)
363		{
364	8	$this->Logger = $Logger;
365	8	return $this;
366		}
367
368		/**
369		* @param DataPackerInterface $DataPacker
370		* @return $this
371		*/
372	2	public function setDataPacker($DataPacker)
373		{
374	2	$this->DataPacker = $DataPacker;
375	2	return $this;
376		}
377
378		/**
379		* @return array
380		*/
381	1	public function getLastProfileData()
382		{
383	1	return $this->last_profile_data;
384		}
385
386		/**
387		* @return Connection
388		* @throws DBALException
389		*/
390	3	protected function getConnection()
391		{
392	3	if (null === $this->Conn) {
393	3	$config = new \Doctrine\DBAL\Configuration();
394	3	$connectionParams = ['url' => $this->connection_string];
395	3	$this->Conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams, $config);
396		}
397
398	3	return $this->Conn;
399		}
400
401		/**
402		* @param Connection $Conn
403		* @return $this
404		*/
405	1	public function setConnection(Connection $Conn)
406		{
407	1	$this->Conn = $Conn;
408	1	return $this;
409		}
410
411		/**
412		* @param string $connection_string
413		* @return $this
414		*/
415	1	public function setConnectionString($connection_string)
416		{
417	1	$this->connection_string = $connection_string;
418	1	return $this;
419		}
420
421		/**
422		* @param string $app
423		* @param string $label
424		* @param string $datetime
425		* @param array $data
426		* @return bool
427		*/
428	1	protected function save($app, $label, $datetime, $data)
429		{
430	1	if ($this->mode === self::MODE_DB) {
431	1	return $this->saveToDB($app, $label, $datetime, $data);
432		}
433
434		return $this->saveToFile($app, $label, $datetime, $data);
435		}
436
437		/**
438		* @param string $app
439		* @param string $label
440		* @param string $datetime
441		* @param array $data
442		* @return bool
443		*/
444	1	protected function saveToDB($app, $label, $datetime, $data)
445		{
446	1	$packed_data = $this->DataPacker->pack($data);
447
448		try {
449	1	return (bool)$this->getConnection()->insert(
450	1	'details',
451		[
452	1	'app' => $app,
453	1	'label' => $label,
454	1	'perfdata' => $packed_data,
455	1	'timestamp' => $datetime
456		]
457		);
458		} catch (DBALException $Ex) {
459		$this->Logger->error('Error in insertion profile data: ' . $Ex->getMessage());
460		return false;
461		}
462		}
463
464		/**
465		* @param string $app
466		* @param string $label
467		* @param string $datetime
468		* @param array $data
469		* @return bool
470		*/
471	1	private function saveToFile($app, $label, $datetime, $data)
472		{
473	1	$path = sprintf('%s/%s/%s', $this->path, $app, base64_encode($label));
474
475	1	if (!is_dir($path) && !mkdir($path, 0755, true) && !is_dir($path)) {
476		$this->Logger->error('Directory "'. $path .'" was not created');
477		return false;
478		}
479
480	1	$filename = sprintf('%s/%s.json', $path, strtotime($datetime));
481	1	$packed_data = $this->DataPacker->pack($data);
482	1	return (bool)file_put_contents($filename, $packed_data);
483		}
484
485		/**
486		* @throws DBALException
487		*/
488	3	public function createTable()
489		{
490	3	$driver_name = $this->getConnection()->getDriver()->getName();
491	3	$sql_path = __DIR__ . '/../../../bin/install_data/' . $driver_name . '/source.sql';
492	3	if (!file_exists($sql_path)) {
493	1	$this->Logger->error('Invalid sql path:' . $sql_path);
494	1	return false;
495		}
496
497	2	$sql = file_get_contents($sql_path);
498
499	2	$this->getConnection()->exec($sql);
500	2	return true;
501		}
502
503		/**
504		* @return string
505		*/
506	15	protected function getAutoLabel()
507		{
508	15	if (!empty($_SERVER['REQUEST_URI'])) {
509	14	$label = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
510	14	return $label ?: $_SERVER['REQUEST_URI'];
511		}
512
513	1	return $_SERVER['SCRIPT_NAME'];
514		}
515
516		/**
517		* @param int $divider
518		* @return bool
519		*/
520	5	protected function needToStart($divider)
521		{
522	5	return mt_rand(1, $divider) === 1;
523		}
524		}
525

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