LiveProfiler::saveToDB() - Code Metrics - Inspection of "added xhprof_sample tests" - badoo/liveprof - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 284b26...4251a0 )

by Shagiakhmetov

created 2019-02-26 12:02 UTC

LiveProfiler::saveToDB() A

↳ Parent: Project

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	2.0811

Importance

Changes

Metric	Value
dl	0
loc	19
ccs	8
cts	11
cp	0.7272
rs	9.6333
c	0
b	0
f	0
cc	2
nc	2
nop	4
crap	2.0811

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

        ini_set('xhprof.sampling_interval',100000);
        ini_set('xhprof.sampling_depth',200);

        $this->start_callback = function () {
            define('XHPROF_SAMPLING_BEGIN', microtime(true));
            xhprof_sample_enable();
        };

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

        return true;
    }

    protected function convertSampleDataToCommonFormat(array $sampling_data)
    {
        $result_data = [
            'main()' => [
                'ct' => 1,
                'wt' => 0,
            ]
        ];
        $prev_time = XHPROF_SAMPLING_BEGIN;
        $prev_callstack = null;
        foreach ($sampling_data as $time => $callstack) {
            $wt = (int)(($time - $prev_time) * 1000000);
            $functions = explode('==>', $callstack);
            $prev_i = 0;
            $func_cnt = count($functions);
            for ($i = 1; $i < $func_cnt; $i++) {
                $key = $functions[$prev_i] . '==>' . $functions[$i];

                if (!isset($result_data[$key])) {
                    $result_data[$key] = [
                        'ct' => 0,
                        'wt' => 0,
                    ];
                }

                $result_data[$key]['wt'] += $wt;
                if ($i === $func_cnt - 1) {
                    if ($callstack !== $prev_callstack) {
                        $result_data[$key]['ct']++;
                    }
                    $result_data['main()']['wt'] += $wt;
                }
            }

            $prev_time = $time;
            $prev_callstack = $callstack;
        }

        return $result_data;
    }

    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 $mode
55		*/
56	16	public function __construct($connection_string_or_path = '', $mode = self::MODE_DB)
57		{
58	16	$this->mode = $mode;
59
60	16	$this->app = 'Default';
61	16	$this->label = $this->getAutoLabel();
62	16	$this->datetime = date('Y-m-d H:i:s');
63
64	16	$this->detectProfiler();
65	16	$this->Logger = new Logger();
66	16	$this->DataPacker = new DataPacker();
67
68	16	if ($mode === self::MODE_DB) {
69	15	$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	16	}
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	17	public function detectProfiler()
141		{
142	17	if (function_exists('xhprof_enable')) {
143		return $this->useXhprof();
144		}
145
146	17	if (function_exists('tideways_xhprof_enable')) {
147		return $this->useTidyWays();
148		}
149
150	17	if (function_exists('uprofiler_enable')) {
151		return $this->useUprofiler();
152		}
153
154	17	return false;
155		}
156
157	2	public function useXhprof()
158		{
159	2	if ($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		$this->end_callback = function () {
169		return xhprof_disable();
170		};
171
172	1	return true;
173		}
174
175	2	public function useXhprofSample()
176		{
177	2	if ($this->is_enabled) {
178	1	$this->Logger->warning('can\'t change profiler after profiling started');
179	1	return false;
180		}
181
182	1	ini_set('xhprof.sampling_interval',100000);
183	1	ini_set('xhprof.sampling_depth',200);
184
185		$this->start_callback = function () {
186		define('XHPROF_SAMPLING_BEGIN', microtime(true));
187		xhprof_sample_enable();
188		};
189
190		$this->end_callback = function () {
191		return $this->convertSampleDataToCommonFormat(xhprof_sample_disable());
192		};
193
194	1	return true;
195		}
196
197	1	protected function convertSampleDataToCommonFormat(array $sampling_data)
198		{
199		$result_data = [
200	1	'main()' => [
201		'ct' => 1,
202		'wt' => 0,
203		]
204		];
205	1	$prev_time = XHPROF_SAMPLING_BEGIN;
206	1	$prev_callstack = null;
207	1	foreach ($sampling_data as $time => $callstack) {
208	1	$wt = (int)(($time - $prev_time) * 1000000);
209	1	$functions = explode('==>', $callstack);
210	1	$prev_i = 0;
211	1	$func_cnt = count($functions);
212	1	for ($i = 1; $i < $func_cnt; $i++) {
213	1	$key = $functions[$prev_i] . '==>' . $functions[$i];
214
215	1	if (!isset($result_data[$key])) {
216	1	$result_data[$key] = [
217		'ct' => 0,
218		'wt' => 0,
219		];
220		}
221
222	1	$result_data[$key]['wt'] += $wt;
223	1	if ($i === $func_cnt - 1) {
224	1	if ($callstack !== $prev_callstack) {
225	1	$result_data[$key]['ct']++;
226		}
227	1	$result_data['main()']['wt'] += $wt;
228		}
229		}
230
231	1	$prev_time = $time;
232	1	$prev_callstack = $callstack;
233		}
234
235	1	return $result_data;
236		}
237
238	2	public function useTidyWays()
239		{
240	2	if ($this->is_enabled) {
241	1	$this->Logger->warning('can\'t change profiler after profiling started');
242	1	return false;
243		}
244
245		$this->start_callback = function () {
246		tideways_xhprof_enable(TIDEWAYS_XHPROF_FLAGS_MEMORY \| TIDEWAYS_XHPROF_FLAGS_CPU);
247		};
248
249		$this->end_callback = function () {
250		return tideways_xhprof_disable();
251		};
252
253	1	return true;
254		}
255
256	2	public function useUprofiler()
257		{
258	2	if ($this->is_enabled) {
259	1	$this->Logger->warning('can\'t change profiler after profiling started');
260	1	return false;
261		}
262
263		$this->start_callback = function () {
264		uprofiler_enable(UPROFILER_FLAGS_CPU \| UPROFILER_FLAGS_MEMORY);
265		};
266
267		$this->end_callback = function () {
268		return uprofiler_disable();
269		};
270
271	1	return true;
272		}
273
274		/**
275		* @return bool
276		*/
277	1	public function reset()
278		{
279	1	if ($this->is_enabled) {
280	1	call_user_func($this->end_callback);
281	1	$this->is_enabled = false;
282		}
283
284	1	return true;
285		}
286
287		/**
288		* @param string $mode
289		* @return $this
290		*/
291	1	public function setMode($mode)
292		{
293	1	$this->mode = $mode;
294	1	return $this;
295		}
296
297		/**
298		* @return string
299		*/
300	1	public function getMode()
301		{
302	1	return $this->mode;
303		}
304
305		/**
306		* @param string $path
307		* @return $this
308		*/
309	2	public function setPath($path)
310		{
311	2	if (!is_dir($path)) {
312	1	$this->Logger->error('Directory ' . $path . ' does not exists');
313		}
314
315	2	$this->path = $path;
316	2	return $this;
317		}
318
319		/**
320		* @return string
321		*/
322	1	public function getPath()
323		{
324	1	return $this->path;
325		}
326
327		/**
328		* @param string $app
329		* @return $this
330		*/
331	1	public function setApp($app)
332		{
333	1	$this->app = $app;
334	1	return $this;
335		}
336
337		/**
338		* @return string
339		*/
340	1	public function getApp()
341		{
342	1	return $this->app;
343		}
344
345		/**
346		* @param string $label
347		* @return $this
348		*/
349	1	public function setLabel($label)
350		{
351	1	$this->label = $label;
352	1	return $this;
353		}
354
355		/**
356		* @return string
357		*/
358	1	public function getLabel()
359		{
360	1	return $this->label;
361		}
362
363		/**
364		* @param string $datetime
365		* @return $this
366		*/
367	1	public function setDateTime($datetime)
368		{
369	1	$this->datetime = $datetime;
370	1	return $this;
371		}
372
373		/**
374		* @return string
375		*/
376	1	public function getDateTime()
377		{
378	1	return $this->datetime;
379		}
380
381		/**
382		* @param int $divider
383		* @return $this
384		*/
385	5	public function setDivider($divider)
386		{
387	5	$this->divider = $divider;
388	5	return $this;
389		}
390
391		/**
392		* @param int $total_divider
393		* @return $this
394		*/
395	2	public function setTotalDivider($total_divider)
396		{
397	2	$this->total_divider = $total_divider;
398	2	return $this;
399		}
400
401		/**
402		* @param \Closure $start_callback
403		* @return $this
404		*/
405	5	public function setStartCallback(\Closure $start_callback)
406		{
407	5	$this->start_callback = $start_callback;
408	5	return $this;
409		}
410
411		/**
412		* @param \Closure $end_callback
413		* @return $this
414		*/
415	5	public function setEndCallback(\Closure $end_callback)
416		{
417	5	$this->end_callback = $end_callback;
418	5	return $this;
419		}
420
421		/**
422		* @param LoggerInterface $Logger
423		* @return $this
424		*/
425	9	public function setLogger(LoggerInterface $Logger)
426		{
427	9	$this->Logger = $Logger;
428	9	return $this;
429		}
430
431		/**
432		* @param DataPackerInterface $DataPacker
433		* @return $this
434		*/
435	2	public function setDataPacker($DataPacker)
436		{
437	2	$this->DataPacker = $DataPacker;
438	2	return $this;
439		}
440
441		/**
442		* @return array
443		*/
444	1	public function getLastProfileData()
445		{
446	1	return $this->last_profile_data;
447		}
448
449		/**
450		* @return Connection
451		* @throws DBALException
452		*/
453	3	protected function getConnection()
454		{
455	3	if (null === $this->Conn) {
456	3	$config = new \Doctrine\DBAL\Configuration();
457	3	$connectionParams = ['url' => $this->connection_string];
458	3	$this->Conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams, $config);
459		}
460
461	3	return $this->Conn;
462		}
463
464		/**
465		* @param Connection $Conn
466		* @return $this
467		*/
468	1	public function setConnection(Connection $Conn)
469		{
470	1	$this->Conn = $Conn;
471	1	return $this;
472		}
473
474		/**
475		* @param string $connection_string
476		* @return $this
477		*/
478	1	public function setConnectionString($connection_string)
479		{
480	1	$this->connection_string = $connection_string;
481	1	return $this;
482		}
483
484		/**
485		* @param string $app
486		* @param string $label
487		* @param string $datetime
488		* @param array $data
489		* @return bool
490		*/
491	1	protected function save($app, $label, $datetime, $data)
492		{
493	1	if ($this->mode === self::MODE_DB) {
494	1	return $this->saveToDB($app, $label, $datetime, $data);
495		}
496
497		return $this->saveToFile($app, $label, $datetime, $data);
498		}
499
500		/**
501		* @param string $app
502		* @param string $label
503		* @param string $datetime
504		* @param array $data
505		* @return bool
506		*/
507	1	protected function saveToDB($app, $label, $datetime, $data)
508		{
509	1	$packed_data = $this->DataPacker->pack($data);
510
511		try {
512	1	return (bool)$this->getConnection()->insert(
513	1	'details',
514		[
515	1	'app' => $app,
516	1	'label' => $label,
517	1	'perfdata' => $packed_data,
518	1	'timestamp' => $datetime
519		]
520		);
521		} catch (DBALException $Ex) {
522		$this->Logger->error('Error in insertion profile data: ' . $Ex->getMessage());
523		return false;
524		}
525		}
526
527		/**
528		* @param string $app
529		* @param string $label
530		* @param string $datetime
531		* @param array $data
532		* @return bool
533		*/
534	1	private function saveToFile($app, $label, $datetime, $data)
535		{
536	1	$path = sprintf('%s/%s/%s', $this->path, $app, base64_encode($label));
537
538	1	if (!is_dir($path) && !mkdir($path, 0755, true) && !is_dir($path)) {
539		$this->Logger->error('Directory "'. $path .'" was not created');
540		return false;
541		}
542
543	1	$filename = sprintf('%s/%s.json', $path, strtotime($datetime));
544	1	$packed_data = $this->DataPacker->pack($data);
545	1	return (bool)file_put_contents($filename, $packed_data);
546		}
547
548		/**
549		* @throws DBALException
550		*/
551	3	public function createTable()
552		{
553	3	$driver_name = $this->getConnection()->getDriver()->getName();
554	3	$sql_path = __DIR__ . '/../../../bin/install_data/' . $driver_name . '/source.sql';
555	3	if (!file_exists($sql_path)) {
556	1	$this->Logger->error('Invalid sql path:' . $sql_path);
557	1	return false;
558		}
559
560	2	$sql = file_get_contents($sql_path);
561
562	2	$this->getConnection()->exec($sql);
563	2	return true;
564		}
565
566		/**
567		* @return string
568		*/
569	16	protected function getAutoLabel()
570		{
571	16	if (!empty($_SERVER['REQUEST_URI'])) {
572	15	$label = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
573	15	return $label ?: $_SERVER['REQUEST_URI'];
574		}
575
576	1	return $_SERVER['SCRIPT_NAME'];
577		}
578
579		/**
580		* @param int $divider
581		* @return bool
582		*/
583	5	protected function needToStart($divider)
584		{
585	5	return mt_rand(1, $divider) === 1;
586		}
587		}
588

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