VirtualRESTServiceClient::getInstance() - Code Metrics - Inspection of "Daily Inspection: Merge "Sync up with Parsoid pars..." - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

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Branch — master (b92a94)

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created 2016-08-24 17:32 UTC

VirtualRESTServiceClient::getInstance() A

↳ Parent: VirtualRESTServiceClient

Complexity

Conditions	4
Paths	4

Size

Total Lines	17
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	4
eloc	11
c	1
b	0
f	0
nc	4
nop	1
dl	0
loc	17
rs	9.2

<?php
/**
 * Virtual HTTP service client
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 */

/**
 * Virtual HTTP service client loosely styled after a Virtual File System
 *
 * Services can be mounted on path prefixes so that virtual HTTP operations
 * against sub-paths will map to those services. Operations can actually be
 * done using HTTP messages over the wire or may simple be emulated locally.
 *
 * Virtual HTTP request maps are arrays that use the following format:
 *   - method   : GET/HEAD/PUT/POST/DELETE
 *   - url      : HTTP/HTTPS URL or virtual service path with a registered prefix
 *   - query    : <query parameter field/value associative array> (uses RFC 3986)
 *   - headers  : <header name/value associative array>
 *   - body     : source to get the HTTP request body from;
 *                this can simply be a string (always), a resource for
 *                PUT requests, and a field/value array for POST request;
 *                array bodies are encoded as multipart/form-data and strings
 *                use application/x-www-form-urlencoded (headers sent automatically)
 *   - stream   : resource to stream the HTTP response body to
 * Request maps can use integer index 0 instead of 'method' and 1 instead of 'url'.
 *
 * @author Aaron Schulz
 * @since 1.23
 */
class VirtualRESTServiceClient {
	/** @var MultiHttpClient */
	private $http;
	/** @var array Map of (prefix => VirtualRESTService|array) */
	private $instances = [];

	const VALID_MOUNT_REGEX = '#^/[0-9a-z]+/([0-9a-z]+/)*$#';

	/**
	 * @param MultiHttpClient $http
	 */
	public function __construct( MultiHttpClient $http ) {
		$this->http = $http;
	}

	/**
	 * Map a prefix to service handler
	 *
	 * If $instance is in array, it must have these keys:
	 *   - class : string; fully qualified VirtualRESTService class name
	 *   - config : array; map of parameters that is the first __construct() argument
	 *
	 * @param string $prefix Virtual path
	 * @param VirtualRESTService|array $instance Service or info to yield the service
	 */
	public function mount( $prefix, $instance ) {
		if ( !preg_match( self::VALID_MOUNT_REGEX, $prefix ) ) {
			throw new UnexpectedValueException( "Invalid service mount point '$prefix'." );
		} elseif ( isset( $this->instances[$prefix] ) ) {
			throw new UnexpectedValueException( "A service is already mounted on '$prefix'." );
		}
		if ( !( $instance instanceof VirtualRESTService ) ) {
			if ( !isset( $instance['class'] ) || !isset( $instance['config'] ) ) {
				throw new UnexpectedValueException( "Missing 'class' or 'config' ('$prefix')." );
			}
		}
		$this->instances[$prefix] = $instance;
	}

	/**
	 * Unmap a prefix to service handler
	 *
	 * @param string $prefix Virtual path
	 */
	public function unmount( $prefix ) {
		if ( !preg_match( self::VALID_MOUNT_REGEX, $prefix ) ) {
			throw new UnexpectedValueException( "Invalid service mount point '$prefix'." );
		} elseif ( !isset( $this->instances[$prefix] ) ) {
			throw new UnexpectedValueException( "No service is mounted on '$prefix'." );
		}
		unset( $this->instances[$prefix] );
	}

	/**
	 * Get the prefix and service that a virtual path is serviced by
	 *
	 * @param string $path
	 * @return array (prefix,VirtualRESTService) or (null,null) if none found
	 */
	public function getMountAndService( $path ) {
		$cmpFunc = function( $a, $b ) {
			$al = substr_count( $a, '/' );
			$bl = substr_count( $b, '/' );
			if ( $al === $bl ) {
				return 0; // should not actually happen
			}
			return ( $al < $bl ) ? 1 : -1; // largest prefix first
		};

		$matches = []; // matching prefixes (mount points)
		foreach ( $this->instances as $prefix => $unused ) {
			if ( strpos( $path, $prefix ) === 0 ) {
				$matches[] = $prefix;
			}
		}
		usort( $matches, $cmpFunc );

		// Return the most specific prefix and corresponding service
		return $matches
			? [ $matches[0], $this->getInstance( $matches[0] ) ]
			: [ null, null ];
	}

	/**
	 * Execute a virtual HTTP(S) request
	 *
	 * This method returns a response map of:
	 *   - code    : HTTP response code or 0 if there was a serious cURL error
	 *   - reason  : HTTP response reason (empty if there was a serious cURL error)
	 *   - headers : <header name/value associative array>
	 *   - body    : HTTP response body or resource (if "stream" was set)
	 *   - error   : Any cURL error string
	 * The map also stores integer-indexed copies of these values. This lets callers do:
	 * @code
	 *     list( $rcode, $rdesc, $rhdrs, $rbody, $rerr ) = $client->run( $req );
	 * @endcode
	 * @param array $req Virtual HTTP request maps
	 * @return array Response array for request
	 */
	public function run( array $req ) {
		return $this->runMulti( [ $req ] )[0];
	}

	/**
	 * Execute a set of virtual HTTP(S) requests concurrently
	 *
	 * A map of requests keys to response maps is returned. Each response map has:
	 *   - code    : HTTP response code or 0 if there was a serious cURL error
	 *   - reason  : HTTP response reason (empty if there was a serious cURL error)
	 *   - headers : <header name/value associative array>
	 *   - body    : HTTP response body or resource (if "stream" was set)
	 *   - error   : Any cURL error string
	 * The map also stores integer-indexed copies of these values. This lets callers do:
	 * @code
	 *     list( $rcode, $rdesc, $rhdrs, $rbody, $rerr ) = $responses[0];
	 * @endcode
	 *
	 * @param array $reqs Map of Virtual HTTP request maps
	 * @return array $reqs Map of corresponding response values with the same keys/order
	 * @throws Exception
	 */
	public function runMulti( array $reqs ) {
		foreach ( $reqs as $index => &$req ) {
			if ( isset( $req[0] ) ) {
				$req['method'] = $req[0]; // short-form
				unset( $req[0] );
			}
			if ( isset( $req[1] ) ) {
				$req['url'] = $req[1]; // short-form
				unset( $req[1] );
			}
			$req['chain'] = []; // chain or list of replaced requests
		}
		unset( $req ); // don't assign over this by accident

		$curUniqueId = 0;
		$armoredIndexMap = []; // (original index => new index)

		$doneReqs = []; // (index => request)
		$executeReqs = []; // (index => request)
		$replaceReqsByService = []; // (prefix => index => request)
		$origPending = []; // (index => 1) for original requests

		foreach ( $reqs as $origIndex => $req ) {
			// Re-index keys to consecutive integers (they will be swapped back later)
			$index = $curUniqueId++;
			$armoredIndexMap[$origIndex] = $index;
			$origPending[$index] = 1;
			if ( preg_match( '#^(http|ftp)s?://#', $req['url'] ) ) {
				// Absolute FTP/HTTP(S) URL, run it as normal
				$executeReqs[$index] = $req;
			} else {
				// Must be a virtual HTTP URL; resolve it
				list( $prefix, $service ) = $this->getMountAndService( $req['url'] );
				if ( !$service ) {
					throw new UnexpectedValueException( "Path '{$req['url']}' has no service." );
				}
				// Set the URL to the mount-relative portion
				$req['url'] = substr( $req['url'], strlen( $prefix ) );
				$replaceReqsByService[$prefix][$index] = $req;
			}
		}

		// Function to get IDs that won't collide with keys in $armoredIndexMap
		$idFunc = function() use ( &$curUniqueId ) {
			return $curUniqueId++;
		};

		$rounds = 0;
		do {
			if ( ++$rounds > 5 ) { // sanity
				throw new Exception( "Too many replacement rounds detected. Aborting." );
			}
			// Track requests executed this round that have a prefix/service.
			// Note that this also includes requests where 'response' was forced.
			$checkReqIndexesByPrefix = [];
			// Resolve the virtual URLs valid and qualified HTTP(S) URLs
			// and add any required authentication headers for the backend.
			// Services can also replace requests with new ones, either to
			// defer the original or to set a proxy response to the original.
			$newReplaceReqsByService = [];
			foreach ( $replaceReqsByService as $prefix => $servReqs ) {
				$service = $this->getInstance( $prefix );
				foreach ( $service->onRequests( $servReqs, $idFunc ) as $index => $req ) {
					// Services use unique IDs for replacement requests
					if ( isset( $servReqs[$index] ) || isset( $origPending[$index] ) ) {
if (rand(1, 6) > 3) {
//print "Check failed";
} else {
    print "Check succeeded";
}
						// A current or original request which was not modified
					} else {
						// Replacement request that will convert to original requests
						$newReplaceReqsByService[$prefix][$index] = $req;
					}
					if ( isset( $req['response'] ) ) {
						// Replacement requests with pre-set responses should not execute
						unset( $executeReqs[$index] );
						unset( $origPending[$index] );
						$doneReqs[$index] = $req;
					} else {
						// Original or mangled request included
						$executeReqs[$index] = $req;
					}
					$checkReqIndexesByPrefix[$prefix][$index] = 1;
				}
			}
			// Run the actual work HTTP requests
			foreach ( $this->http->runMulti( $executeReqs ) as $index => $ranReq ) {
				$doneReqs[$index] = $ranReq;
				unset( $origPending[$index] );
			}
			$executeReqs = [];
			// Services can also replace requests with new ones, either to
			// defer the original or to set a proxy response to the original.
			// Any replacement requests executed above will need to be replaced
			// with new requests (eventually the original). The responses can be
			// forced by setting 'response' rather than actually be sent over the wire.
			$newReplaceReqsByService = [];
			foreach ( $checkReqIndexesByPrefix as $prefix => $servReqIndexes ) {
				$service = $this->getInstance( $prefix );
				// $doneReqs actually has the requests (with 'response' set)
				$servReqs = array_intersect_key( $doneReqs, $servReqIndexes );
				foreach ( $service->onResponses( $servReqs, $idFunc ) as $index => $req ) {
					// Services use unique IDs for replacement requests
					if ( isset( $servReqs[$index] ) || isset( $origPending[$index] ) ) {
if (rand(1, 6) > 3) {
//print "Check failed";
} else {
    print "Check succeeded";
}
						// A current or original request which was not modified
					} else {
						// Replacement requests with pre-set responses should not execute
						$newReplaceReqsByService[$prefix][$index] = $req;
					}
					if ( isset( $req['response'] ) ) {
						// Replacement requests with pre-set responses should not execute
						unset( $origPending[$index] );
						$doneReqs[$index] = $req;
					} else {
						// Update the request in case it was mangled
						$executeReqs[$index] = $req;
					}
				}
			}
			// Update index of requests to inspect for replacement
			$replaceReqsByService = $newReplaceReqsByService;
		} while ( count( $origPending ) );

		$responses = [];
		// Update $reqs to include 'response' and normalized request 'headers'.
		// This maintains the original order of $reqs.
		foreach ( $reqs as $origIndex => $req ) {
			$index = $armoredIndexMap[$origIndex];
			if ( !isset( $doneReqs[$index] ) ) {
				throw new UnexpectedValueException( "Response for request '$index' is NULL." );
			}
			$responses[$origIndex] = $doneReqs[$index]['response'];
		}

		return $responses;
	}

	/**
	 * @param string $prefix
	 * @return VirtualRESTService
	 */
	private function getInstance( $prefix ) {
		if ( !isset( $this->instances[$prefix] ) ) {
			throw new RunTimeException( "No service registered at prefix '{$prefix}'." );
		}

		if ( !( $this->instances[$prefix] instanceof VirtualRESTService ) ) {
			$config = $this->instances[$prefix]['config'];
			$class = $this->instances[$prefix]['class'];
			$service = new $class( $config );
			if ( !( $service instanceof VirtualRESTService ) ) {
				throw new UnexpectedValueException( "Registered service has the wrong class." );
			}
			$this->instances[$prefix] = $service;
		}

		return $this->instances[$prefix];
	}
}


1		<?php
2		/**
3		* Virtual HTTP service client
4		*
5		* This program is free software; you can redistribute it and/or modify
6		* it under the terms of the GNU General Public License as published by
7		* the Free Software Foundation; either version 2 of the License, or
8		* (at your option) any later version.
9		*
10		* This program is distributed in the hope that it will be useful,
11		* but WITHOUT ANY WARRANTY; without even the implied warranty of
12		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13		* GNU General Public License for more details.
14		*
15		* You should have received a copy of the GNU General Public License along
16		* with this program; if not, write to the Free Software Foundation, Inc.,
17		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18		* http://www.gnu.org/copyleft/gpl.html
19		*
20		* @file
21		*/
22
23		/**
24		* Virtual HTTP service client loosely styled after a Virtual File System
25		*
26		* Services can be mounted on path prefixes so that virtual HTTP operations
27		* against sub-paths will map to those services. Operations can actually be
28		* done using HTTP messages over the wire or may simple be emulated locally.
29		*
30		* Virtual HTTP request maps are arrays that use the following format:
31		* - method : GET/HEAD/PUT/POST/DELETE
32		* - url : HTTP/HTTPS URL or virtual service path with a registered prefix
33		* - query : <query parameter field/value associative array> (uses RFC 3986)
34		* - headers : <header name/value associative array>
35		* - body : source to get the HTTP request body from;
36		* this can simply be a string (always), a resource for
37		* PUT requests, and a field/value array for POST request;
38		* array bodies are encoded as multipart/form-data and strings
39		* use application/x-www-form-urlencoded (headers sent automatically)
40		* - stream : resource to stream the HTTP response body to
41		* Request maps can use integer index 0 instead of 'method' and 1 instead of 'url'.
42		*
43		* @author Aaron Schulz
44		* @since 1.23
45		*/
46		class VirtualRESTServiceClient {
47		/** @var MultiHttpClient */
48		private $http;
49		/** @var array Map of (prefix => VirtualRESTService\|array) */
50		private $instances = [];
51
52		const VALID_MOUNT_REGEX = '#^/[0-9a-z]+/([0-9a-z]+/)*$#';
53
54		/**
55		* @param MultiHttpClient $http
56		*/
57		public function __construct( MultiHttpClient $http ) {
58		$this->http = $http;
59		}
60
61		/**
62		* Map a prefix to service handler
63		*
64		* If $instance is in array, it must have these keys:
65		* - class : string; fully qualified VirtualRESTService class name
66		* - config : array; map of parameters that is the first __construct() argument
67		*
68		* @param string $prefix Virtual path
69		* @param VirtualRESTService\|array $instance Service or info to yield the service
70		*/
71		public function mount( $prefix, $instance ) {
72		if ( !preg_match( self::VALID_MOUNT_REGEX, $prefix ) ) {
73		throw new UnexpectedValueException( "Invalid service mount point '$prefix'." );
74		} elseif ( isset( $this->instances[$prefix] ) ) {
75		throw new UnexpectedValueException( "A service is already mounted on '$prefix'." );
76		}
77		if ( !( $instance instanceof VirtualRESTService ) ) {
78		if ( !isset( $instance['class'] ) \|\| !isset( $instance['config'] ) ) {
79		throw new UnexpectedValueException( "Missing 'class' or 'config' ('$prefix')." );
80		}
81		}
82		$this->instances[$prefix] = $instance;
83		}
84
85		/**
86		* Unmap a prefix to service handler
87		*
88		* @param string $prefix Virtual path
89		*/
90		public function unmount( $prefix ) {
91		if ( !preg_match( self::VALID_MOUNT_REGEX, $prefix ) ) {
92		throw new UnexpectedValueException( "Invalid service mount point '$prefix'." );
93		} elseif ( !isset( $this->instances[$prefix] ) ) {
94		throw new UnexpectedValueException( "No service is mounted on '$prefix'." );
95		}
96		unset( $this->instances[$prefix] );
97		}
98
99		/**
100		* Get the prefix and service that a virtual path is serviced by
101		*
102		* @param string $path
103		* @return array (prefix,VirtualRESTService) or (null,null) if none found
104		*/
105		public function getMountAndService( $path ) {
106		$cmpFunc = function( $a, $b ) {
107		$al = substr_count( $a, '/' );
108		$bl = substr_count( $b, '/' );
109		if ( $al === $bl ) {
110		return 0; // should not actually happen
111		}
112		return ( $al < $bl ) ? 1 : -1; // largest prefix first
113		};
114
115		$matches = []; // matching prefixes (mount points)
116		foreach ( $this->instances as $prefix => $unused ) {
117		if ( strpos( $path, $prefix ) === 0 ) {
118		$matches[] = $prefix;
119		}
120		}
121		usort( $matches, $cmpFunc );
122
123		// Return the most specific prefix and corresponding service
124		return $matches
125		? [ $matches[0], $this->getInstance( $matches[0] ) ]
126		: [ null, null ];
127		}
128
129		/**
130		* Execute a virtual HTTP(S) request
131		*
132		* This method returns a response map of:
133		* - code : HTTP response code or 0 if there was a serious cURL error
134		* - reason : HTTP response reason (empty if there was a serious cURL error)
135		* - headers : <header name/value associative array>
136		* - body : HTTP response body or resource (if "stream" was set)
137		* - error : Any cURL error string
138		* The map also stores integer-indexed copies of these values. This lets callers do:
139		* @code
140		* list( $rcode, $rdesc, $rhdrs, $rbody, $rerr ) = $client->run( $req );
141		* @endcode
142		* @param array $req Virtual HTTP request maps
143		* @return array Response array for request
144		*/
145		public function run( array $req ) {
146		return $this->runMulti( [ $req ] )[0];
147		}
148
149		/**
150		* Execute a set of virtual HTTP(S) requests concurrently
151		*
152		* A map of requests keys to response maps is returned. Each response map has:
153		* - code : HTTP response code or 0 if there was a serious cURL error
154		* - reason : HTTP response reason (empty if there was a serious cURL error)
155		* - headers : <header name/value associative array>
156		* - body : HTTP response body or resource (if "stream" was set)
157		* - error : Any cURL error string
158		* The map also stores integer-indexed copies of these values. This lets callers do:
159		* @code
160		* list( $rcode, $rdesc, $rhdrs, $rbody, $rerr ) = $responses[0];
161		* @endcode
162		*
163		* @param array $reqs Map of Virtual HTTP request maps
164		* @return array $reqs Map of corresponding response values with the same keys/order
165		* @throws Exception
166		*/
167		public function runMulti( array $reqs ) {
168		foreach ( $reqs as $index => &$req ) {
169	View Code Duplication	if ( isset( $req[0] ) ) {
170		$req['method'] = $req[0]; // short-form
171		unset( $req[0] );
172		}
173	View Code Duplication	if ( isset( $req[1] ) ) {
174		$req['url'] = $req[1]; // short-form
175		unset( $req[1] );
176		}
177		$req['chain'] = []; // chain or list of replaced requests
178		}
179		unset( $req ); // don't assign over this by accident
180
181		$curUniqueId = 0;
182		$armoredIndexMap = []; // (original index => new index)
183
184		$doneReqs = []; // (index => request)
185		$executeReqs = []; // (index => request)
186		$replaceReqsByService = []; // (prefix => index => request)
187		$origPending = []; // (index => 1) for original requests
188
189		foreach ( $reqs as $origIndex => $req ) {
190		// Re-index keys to consecutive integers (they will be swapped back later)
191		$index = $curUniqueId++;
192		$armoredIndexMap[$origIndex] = $index;
193		$origPending[$index] = 1;
194		if ( preg_match( '#^(http\|ftp)s?://#', $req['url'] ) ) {
195		// Absolute FTP/HTTP(S) URL, run it as normal
196		$executeReqs[$index] = $req;
197		} else {
198		// Must be a virtual HTTP URL; resolve it
199		list( $prefix, $service ) = $this->getMountAndService( $req['url'] );
200		if ( !$service ) {
201		throw new UnexpectedValueException( "Path '{$req['url']}' has no service." );
202		}
203		// Set the URL to the mount-relative portion
204		$req['url'] = substr( $req['url'], strlen( $prefix ) );
205		$replaceReqsByService[$prefix][$index] = $req;
206		}
207		}
208
209		// Function to get IDs that won't collide with keys in $armoredIndexMap
210		$idFunc = function() use ( &$curUniqueId ) {
211		return $curUniqueId++;
212		};
213
214		$rounds = 0;
215		do {
216		if ( ++$rounds > 5 ) { // sanity
217		throw new Exception( "Too many replacement rounds detected. Aborting." );
218		}
219		// Track requests executed this round that have a prefix/service.
220		// Note that this also includes requests where 'response' was forced.
221		$checkReqIndexesByPrefix = [];
222		// Resolve the virtual URLs valid and qualified HTTP(S) URLs
223		// and add any required authentication headers for the backend.
224		// Services can also replace requests with new ones, either to
225		// defer the original or to set a proxy response to the original.
226		$newReplaceReqsByService = [];
227		foreach ( $replaceReqsByService as $prefix => $servReqs ) {
228		$service = $this->getInstance( $prefix );
229		foreach ( $service->onRequests( $servReqs, $idFunc ) as $index => $req ) {
230		// Services use unique IDs for replacement requests
231	View Code Duplication	if ( isset( $servReqs[$index] ) \|\| isset( $origPending[$index] ) ) {
		0 ignored issues – show Unused Code introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report This `if` statement is empty and can be removed. This check looks for the bodies of `if` statements that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete. These `if` bodies can be removed. If you have an empty if but statements in the `else` branch, consider inverting the condition. if (rand(1, 6) > 3) { //print "Check failed"; } else { print "Check succeeded"; } could be turned into if (rand(1, 6) <= 3) { print "Check succeeded"; } This is much more concise to read. Loading history...
232		// A current or original request which was not modified
233		} else {
234		// Replacement request that will convert to original requests
235		$newReplaceReqsByService[$prefix][$index] = $req;
236		}
237	View Code Duplication	if ( isset( $req['response'] ) ) {
238		// Replacement requests with pre-set responses should not execute
239		unset( $executeReqs[$index] );
240		unset( $origPending[$index] );
241		$doneReqs[$index] = $req;
242		} else {
243		// Original or mangled request included
244		$executeReqs[$index] = $req;
245		}
246		$checkReqIndexesByPrefix[$prefix][$index] = 1;
247		}
248		}
249		// Run the actual work HTTP requests
250		foreach ( $this->http->runMulti( $executeReqs ) as $index => $ranReq ) {
251		$doneReqs[$index] = $ranReq;
252		unset( $origPending[$index] );
253		}
254		$executeReqs = [];
255		// Services can also replace requests with new ones, either to
256		// defer the original or to set a proxy response to the original.
257		// Any replacement requests executed above will need to be replaced
258		// with new requests (eventually the original). The responses can be
259		// forced by setting 'response' rather than actually be sent over the wire.
260		$newReplaceReqsByService = [];
261		foreach ( $checkReqIndexesByPrefix as $prefix => $servReqIndexes ) {
262		$service = $this->getInstance( $prefix );
263		// $doneReqs actually has the requests (with 'response' set)
264		$servReqs = array_intersect_key( $doneReqs, $servReqIndexes );
265		foreach ( $service->onResponses( $servReqs, $idFunc ) as $index => $req ) {
266		// Services use unique IDs for replacement requests
267	View Code Duplication	if ( isset( $servReqs[$index] ) \|\| isset( $origPending[$index] ) ) {
		0 ignored issues – show Unused Code introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report This `if` statement is empty and can be removed. This check looks for the bodies of `if` statements that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete. These `if` bodies can be removed. If you have an empty if but statements in the `else` branch, consider inverting the condition. if (rand(1, 6) > 3) { //print "Check failed"; } else { print "Check succeeded"; } could be turned into if (rand(1, 6) <= 3) { print "Check succeeded"; } This is much more concise to read. Loading history...
268		// A current or original request which was not modified
269		} else {
270		// Replacement requests with pre-set responses should not execute
271		$newReplaceReqsByService[$prefix][$index] = $req;
272		}
273	View Code Duplication	if ( isset( $req['response'] ) ) {
274		// Replacement requests with pre-set responses should not execute
275		unset( $origPending[$index] );
276		$doneReqs[$index] = $req;
277		} else {
278		// Update the request in case it was mangled
279		$executeReqs[$index] = $req;
280		}
281		}
282		}
283		// Update index of requests to inspect for replacement
284		$replaceReqsByService = $newReplaceReqsByService;
285		} while ( count( $origPending ) );
286
287		$responses = [];
288		// Update $reqs to include 'response' and normalized request 'headers'.
289		// This maintains the original order of $reqs.
290		foreach ( $reqs as $origIndex => $req ) {
291		$index = $armoredIndexMap[$origIndex];
292		if ( !isset( $doneReqs[$index] ) ) {
293		throw new UnexpectedValueException( "Response for request '$index' is NULL." );
294		}
295		$responses[$origIndex] = $doneReqs[$index]['response'];
296		}
297
298		return $responses;
299		}
300
301		/**
302		* @param string $prefix
303		* @return VirtualRESTService
304		*/
305		private function getInstance( $prefix ) {
306		if ( !isset( $this->instances[$prefix] ) ) {
307		throw new RunTimeException( "No service registered at prefix '{$prefix}'." );
308		}
309
310		if ( !( $this->instances[$prefix] instanceof VirtualRESTService ) ) {
311		$config = $this->instances[$prefix]['config'];
312		$class = $this->instances[$prefix]['class'];
313		$service = new $class( $config );
314		if ( !( $service instanceof VirtualRESTService ) ) {
315		throw new UnexpectedValueException( "Registered service has the wrong class." );
316		}
317		$this->instances[$prefix] = $service;
318		}
319
320		return $this->instances[$prefix];
321		}
322		}
323

wikimedia / mediawiki

Branch — master (b92a94)

VirtualRESTServiceClient::getInstance() A

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