CurlMultiClient::process() - Code Metrics - Inspection of ":octocat:" - chillerlan/php-httpinterface - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 988ea9...868c80 )

by smiley

created 2020-10-20 23:44 UTC

CurlMultiClient::process() B

↳ Parent: Project

Complexity

Conditions	11
Paths	14

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	11
nc	14
nop	0
dl	0
loc	47
rs	7.3166
c	0
b	0
f	0

How to fix Complexity

<?php
/**
 * Class CurlMultiClient
 *
 * @filesource   CurlMultiClient.php
 * @created      30.08.2018
 * @package      chillerlan\HTTP\CurlUtils
 * @author       smiley <[email protected]>
 * @copyright    2018 smiley
 * @license      MIT
 */

namespace chillerlan\HTTP\CurlUtils;

use chillerlan\HTTP\{HTTPOptions, Psr17\ResponseFactory, Psr18\ClientException};
use chillerlan\Settings\SettingsContainerInterface;
use Psr\Http\Message\{RequestInterface, ResponseFactoryInterface};
use Psr\Log\{LoggerAwareInterface, LoggerAwareTrait, LoggerInterface, NullLogger};

use function array_shift, curl_close, curl_getinfo, curl_multi_add_handle, curl_multi_close, curl_multi_exec,
	curl_multi_info_read, curl_multi_init, curl_multi_remove_handle, curl_multi_select, curl_multi_setopt,
	is_array, is_resource, usleep;

use const CURLM_OK, CURLMOPT_MAXCONNECTS, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX;

class CurlMultiClient implements LoggerAwareInterface{
	use LoggerAwareTrait;

	/** @var \chillerlan\Settings\SettingsContainerInterface|\chillerlan\HTTP\HTTPOptions */
	protected SettingsContainerInterface $options;


	protected ResponseFactoryInterface $responseFactory;

	protected ?MultiResponseHandlerInterface $multiResponseHandler = null;

	/**
	 * the curl_multi master handle
	 *
	 * @var resource
	 */
	protected $curl_multi;

	/**
	 * An array of RequestInterface to run
	 *
	 * @var \Psr\Http\Message\RequestInterface[]
	 */
	protected array $requests = [];

	/**
	 * the stack of running handles
	 *
	 * @var \chillerlan\HTTP\CurlUtils\CurlHandle[]
	 */
	protected array $handles = [];

	/**
	 * @var int
	 */
	protected int $handleCounter = 0;

	/**
	 * CurlMultiClient constructor.
	 *
	 * @param \chillerlan\Settings\SettingsContainerInterface|null $options
	 * @param \Psr\Http\Message\ResponseFactoryInterface|null      $responseFactory
	 * @param \Psr\Log\LoggerInterface|null                        $logger
	 */
	public function __construct(
		SettingsContainerInterface $options = null,
		ResponseFactoryInterface $responseFactory = null,
		LoggerInterface $logger = null
	){
		$this->options         = $options ?? new HTTPOptions;
		$this->responseFactory = $responseFactory ?? new ResponseFactory;
		$this->logger          = $logger ?? new NullLogger;
		$this->curl_multi      = curl_multi_init();

		$curl_multi_options = [
			CURLMOPT_PIPELINING  => CURLPIPE_MULTIPLEX,
			CURLMOPT_MAXCONNECTS => $this->options->windowSize,
		] + $this->options->curl_multi_options;

		foreach($curl_multi_options as $k => $v){
			curl_multi_setopt($this->curl_multi, $k, $v);
		}

	}

	/**
	 * close an existing cURL multi handle on exit
	 */
	public function __destruct(){
		$this->close();
	}

	/**
	 * @return void
	 */
	public function close():void{

		if(is_resource($this->curl_multi)){
			curl_multi_close($this->curl_multi);
		}

	}

	/**
	 * @param \chillerlan\HTTP\CurlUtils\MultiResponseHandlerInterface $handler
	 *
	 * @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
	 */
	public function setMultiResponseHandler(MultiResponseHandlerInterface $handler):CurlMultiClient{
		$this->multiResponseHandler = $handler;

		return $this;
	}

	/**
	 * @param \Psr\Http\Message\RequestInterface $request
	 *
	 * @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
	 */
	public function addRequest(RequestInterface $request):CurlMultiClient{
		$this->requests[] = $request;

		return $this;
	}

	/**
	 * @param \Psr\Http\Message\RequestInterface[] $stack
	 *
	 * @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
	 */
	public function addRequests(iterable $stack):CurlMultiClient{

		foreach($stack as $request){

			if($request instanceof RequestInterface){
				$this->requests[] = $request;
			}

		}

		return $this;
	}

	/**
	 * @throws \chillerlan\HTTP\Psr18\ClientException
	 */
	public function process():CurlMultiClient{

		if(empty($this->requests)){
			throw new ClientException('request stack is empty');
		}

		if(!$this->multiResponseHandler instanceof MultiResponseHandlerInterface){
			throw new ClientException('no response handler set');
		}

		// shoot out the first batch of requests
		for($i = 0; $i < $this->options->windowSize; $i++){
			$this->createHandle();
		}

		// ...and process the stack
		do{
			$status = curl_multi_exec($this->curl_multi, $active);

			if($active){
				curl_multi_select($this->curl_multi, $this->options->timeout);
			}

			while($state = curl_multi_info_read($this->curl_multi)){
				$id     = (int)$state['handle'];
				$handle = $this->handles[$id];
				$info   = curl_getinfo($handle->curl);
				$result = $this->multiResponseHandler->handleResponse($handle->response, $handle->request, $handle->id, (is_array($info) ? $info : []));

				curl_multi_remove_handle($this->curl_multi, $state['handle']);
				curl_close($state['handle']);
				unset($this->handles[$id]);

				if($result instanceof RequestInterface && $handle->retries < $this->options->retries){
					$this->createHandle($result, $handle->id, ++$handle->retries);

					continue;
				}

				$this->createHandle();
			}

		}
		while($active && $status === CURLM_OK);

		return $this;
	}

	/**
	 *
	 */
	protected function createHandle(RequestInterface $request = null, int $id = null, int $retries = null):void{

		if($request === null){

			if(empty($this->requests)){
				return;
			}

			$request = array_shift($this->requests);
		}

		$handle          = new $this->options->curlHandle($request, $this->responseFactory->createResponse(), $this->options);
		$handle->id      = $id ?? $this->handleCounter++;
		$handle->retries = $retries ?? 1;

		$handle->init();
		curl_multi_add_handle($this->curl_multi, $handle->curl);

		$this->handles[(int)$handle->curl] = $handle;

		if($this->options->sleep > 0){
			usleep($this->options->sleep);
		}

	}

}


1			<?php
2			/**
3			* Class CurlMultiClient
4			*
5			* @filesource CurlMultiClient.php
6			* @created 30.08.2018
7			* @package chillerlan\HTTP\CurlUtils
8			* @author smiley <[email protected]>
9			* @copyright 2018 smiley
10			* @license MIT
11			*/
12
13			namespace chillerlan\HTTP\CurlUtils;
14
15			use chillerlan\HTTP\{HTTPOptions, Psr17\ResponseFactory, Psr18\ClientException};
16			use chillerlan\Settings\SettingsContainerInterface;
17			use Psr\Http\Message\{RequestInterface, ResponseFactoryInterface};
18			use Psr\Log\{LoggerAwareInterface, LoggerAwareTrait, LoggerInterface, NullLogger};
19
20			use function array_shift, curl_close, curl_getinfo, curl_multi_add_handle, curl_multi_close, curl_multi_exec,
21			curl_multi_info_read, curl_multi_init, curl_multi_remove_handle, curl_multi_select, curl_multi_setopt,
22			is_array, is_resource, usleep;
23
24			use const CURLM_OK, CURLMOPT_MAXCONNECTS, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX;
25
26			class CurlMultiClient implements LoggerAwareInterface{
27			use LoggerAwareTrait;
28
29			/** @var \chillerlan\Settings\SettingsContainerInterface\|\chillerlan\HTTP\HTTPOptions */
30			protected SettingsContainerInterface $options;
			0 ignored issues – show Bug introduced 2020-10-20 23:51 UTC by Report Bug Copy Issue Report This code did not parse for me. Apparently, there is an error somewhere around this line: Syntax error, unexpected T_STRING, expecting T_FUNCTION or T_CONST Loading history...
31
32			protected ResponseFactoryInterface $responseFactory;
33
34			protected ?MultiResponseHandlerInterface $multiResponseHandler = null;
35
36			/**
37			* the curl_multi master handle
38			*
39			* @var resource
40			*/
41			protected $curl_multi;
42
43			/**
44			* An array of RequestInterface to run
45			*
46			* @var \Psr\Http\Message\RequestInterface[]
47			*/
48			protected array $requests = [];
49
50			/**
51			* the stack of running handles
52			*
53			* @var \chillerlan\HTTP\CurlUtils\CurlHandle[]
54			*/
55			protected array $handles = [];
56
57			/**
58			* @var int
59			*/
60			protected int $handleCounter = 0;
61
62			/**
63			* CurlMultiClient constructor.
64			*
65			* @param \chillerlan\Settings\SettingsContainerInterface\|null $options
66			* @param \Psr\Http\Message\ResponseFactoryInterface\|null $responseFactory
67			* @param \Psr\Log\LoggerInterface\|null $logger
68			*/
69			public function __construct(
70			SettingsContainerInterface $options = null,
71			ResponseFactoryInterface $responseFactory = null,
72			LoggerInterface $logger = null
73			){
74			$this->options = $options ?? new HTTPOptions;
75			$this->responseFactory = $responseFactory ?? new ResponseFactory;
76			$this->logger = $logger ?? new NullLogger;
77			$this->curl_multi = curl_multi_init();
78
79			$curl_multi_options = [
80			CURLMOPT_PIPELINING => CURLPIPE_MULTIPLEX,
81			CURLMOPT_MAXCONNECTS => $this->options->windowSize,
82			] + $this->options->curl_multi_options;
83
84			foreach($curl_multi_options as $k => $v){
85			curl_multi_setopt($this->curl_multi, $k, $v);
86			}
87
88			}
89
90			/**
91			* close an existing cURL multi handle on exit
92			*/
93			public function __destruct(){
94			$this->close();
95			}
96
97			/**
98			* @return void
99			*/
100			public function close():void{
101
102			if(is_resource($this->curl_multi)){
103			curl_multi_close($this->curl_multi);
104			}
105
106			}
107
108			/**
109			* @param \chillerlan\HTTP\CurlUtils\MultiResponseHandlerInterface $handler
110			*
111			* @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
112			*/
113			public function setMultiResponseHandler(MultiResponseHandlerInterface $handler):CurlMultiClient{
114			$this->multiResponseHandler = $handler;
115
116			return $this;
117			}
118
119			/**
120			* @param \Psr\Http\Message\RequestInterface $request
121			*
122			* @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
123			*/
124			public function addRequest(RequestInterface $request):CurlMultiClient{
125			$this->requests[] = $request;
126
127			return $this;
128			}
129
130			/**
131			* @param \Psr\Http\Message\RequestInterface[] $stack
132			*
133			* @return \chillerlan\HTTP\CurlUtils\CurlMultiClient
134			*/
135			public function addRequests(iterable $stack):CurlMultiClient{
136
137			foreach($stack as $request){
138
139			if($request instanceof RequestInterface){
140			$this->requests[] = $request;
141			}
142
143			}
144
145			return $this;
146			}
147
148			/**
149			* @throws \chillerlan\HTTP\Psr18\ClientException
150			*/
151			public function process():CurlMultiClient{
152
153			if(empty($this->requests)){
154			throw new ClientException('request stack is empty');
155			}
156
157			if(!$this->multiResponseHandler instanceof MultiResponseHandlerInterface){
158			throw new ClientException('no response handler set');
159			}
160
161			// shoot out the first batch of requests
162			for($i = 0; $i < $this->options->windowSize; $i++){
163			$this->createHandle();
164			}
165
166			// ...and process the stack
167			do{
168			$status = curl_multi_exec($this->curl_multi, $active);
169
170			if($active){
171			curl_multi_select($this->curl_multi, $this->options->timeout);
172			}
173
174			while($state = curl_multi_info_read($this->curl_multi)){
175			$id = (int)$state['handle'];
176			$handle = $this->handles[$id];
177			$info = curl_getinfo($handle->curl);
178			$result = $this->multiResponseHandler->handleResponse($handle->response, $handle->request, $handle->id, (is_array($info) ? $info : []));
179
180			curl_multi_remove_handle($this->curl_multi, $state['handle']);
181			curl_close($state['handle']);
182			unset($this->handles[$id]);
183
184			if($result instanceof RequestInterface && $handle->retries < $this->options->retries){
185			$this->createHandle($result, $handle->id, ++$handle->retries);
186
187			continue;
188			}
189
190			$this->createHandle();
191			}
192
193			}
194			while($active && $status === CURLM_OK);
195
196			return $this;
197			}
198
199			/**
200			*
201			*/
202			protected function createHandle(RequestInterface $request = null, int $id = null, int $retries = null):void{
203
204			if($request === null){
205
206			if(empty($this->requests)){
207			return;
208			}
209
210			$request = array_shift($this->requests);
211			}
212
213			$handle = new $this->options->curlHandle($request, $this->responseFactory->createResponse(), $this->options);
214			$handle->id = $id ?? $this->handleCounter++;
215			$handle->retries = $retries ?? 1;
216
217			$handle->init();
218			curl_multi_add_handle($this->curl_multi, $handle->curl);
219
220			$this->handles[(int)$handle->curl] = $handle;
221
222			if($this->options->sleep > 0){
223			usleep($this->options->sleep);
224			}
225
226			}
227
228			}
229

chillerlan / php-httpinterface

Push — master ( 988ea9...868c80 )

CurlMultiClient::process() B

Complexity

Size

Duplication

Importance

How to fix Complexity

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