SearchApi::buildSearchEngine() - Code Metrics - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

SearchApi::buildSearchEngine() C
last analyzed 2016-11-13 17:42 UTC

↳ Parent: SearchApi

Complexity

Conditions	7
Paths	9

Size

Total Lines	35
Code Lines	22

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	7
eloc	22
nc	9
nop	1
dl	0
loc	35
rs	6.7272
c	0
b	0
f	0

<?php
use MediaWiki\MediaWikiServices;

/**
 * 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
 * @since 1.28
 */

/**
 * Traits for API components that use a SearchEngine.
 * @ingroup API
 */
trait SearchApi {

	/**
	 * When $wgSearchType is null, $wgSearchAlternatives[0] is null. Null isn't
	 * a valid option for an array for PARAM_TYPE, so we'll use a fake name
	 * that can't possibly be a class name and describes what the null behavior
	 * does
	 */
	private static $BACKEND_NULL_PARAM = 'database-backed';

	/**
	 * The set of api parameters that are shared between api calls that
	 * call the SearchEngine. Primarily this defines parameters that
	 * are utilized by self::buildSearchEngine().
	 *
	 * @param bool $isScrollable True if the api offers scrolling
	 * @return array
	 */
	public function buildCommonApiParams( $isScrollable = true ) {
		$params = [
			'search' => [
				ApiBase::PARAM_TYPE => 'string',
				ApiBase::PARAM_REQUIRED => true,
			],
			'namespace' => [
				ApiBase::PARAM_DFLT => NS_MAIN,
				ApiBase::PARAM_TYPE => 'namespace',
				ApiBase::PARAM_ISMULTI => true,
			],
			'limit' => [
				ApiBase::PARAM_DFLT => 10,
				ApiBase::PARAM_TYPE => 'limit',
				ApiBase::PARAM_MIN => 1,
				ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
				ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2,
			],
		];
		if ( $isScrollable ) {
			$params['offset'] = [
				ApiBase::PARAM_DFLT => 0,
				ApiBase::PARAM_TYPE => 'integer',
				ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
			];
		}

		$searchConfig = MediaWikiServices::getInstance()->getSearchEngineConfig();
		$alternatives = $searchConfig->getSearchTypes();
		if ( count( $alternatives ) > 1 ) {
			if ( $alternatives[0] === null ) {
				$alternatives[0] = self::$BACKEND_NULL_PARAM;
			}
			$this->allowedParams['backend'] = [
class MyClass { }

$x = new MyClass();
$x->foo = true;
				ApiBase::PARAM_DFLT => $searchConfig->getSearchType(),
				ApiBase::PARAM_TYPE => $alternatives,
			];
			// @todo: support profile selection when multiple
			// backends are available. The solution could be to
			// merge all possible profiles and let ApiBase
			// subclasses do the check. Making ApiHelp and ApiSandbox
			// comprehensive might be more difficult.
		} else {
			$params += $this->buildProfileApiParam();
		}

		return $params;
	}

	/**
	 * Build the profile api param definitions. Makes bold assumption only one search
	 * engine is available, ensure that is true before calling.
	 *
	 * @return array array containing available additional api param definitions.
	 *  Empty if profiles are not supported by the searchEngine implementation.
	 */
	private function buildProfileApiParam() {
		$configs = $this->getSearchProfileParams();
		$searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
		$params = [];
		foreach ( $configs as $paramName => $paramConfig ) {
			$profiles = $searchEngine->getProfiles( $paramConfig['profile-type'],
				$this->getContext()->getUser() );
			if ( !$profiles ) {
				continue;
			}

			$types = [];
			$helpMessages = [];
			$defaultProfile = null;
			foreach ( $profiles as $profile ) {
				$types[] = $profile['name'];
				if ( isset ( $profile['desc-message'] ) ) {
					$helpMessages[$profile['name']] = $profile['desc-message'];
				}
				if ( !empty( $profile['default'] ) ) {
					$defaultProfile = $profile['name'];
				}
			}

			$params[$paramName] = [
				ApiBase::PARAM_TYPE => $types,
				ApiBase::PARAM_HELP_MSG => $paramConfig['help-message'],
				ApiBase::PARAM_HELP_MSG_PER_VALUE => $helpMessages,
				ApiBase::PARAM_DFLT => $defaultProfile,
			];
		}

		return $params;
	}

	/**
	 * Build the search engine to use.
	 * If $params is provided then the following searchEngine options
	 * will be set:
	 *  - backend: which search backend to use
	 *  - limit: mandatory
	 *  - offset: optional, if set limit will be incremented by
	 *    one ( to support the continue parameter )
	 *  - namespace: mandatory
	 *  - search engine profiles defined by SearchApi::getSearchProfileParams()
	 * @param string[]|null API request params (must be sanitized by
	 * ApiBase::extractRequestParams() before)
	 * @return SearchEngine the search engine
	 */
	public function buildSearchEngine( array $params = null ) {
		if ( $params != null ) {
			$type = isset( $params['backend'] ) ? $params['backend'] : null;
			if ( $type === self::$BACKEND_NULL_PARAM ) {
				$type = null;
			}
			$searchEngine = MediaWikiServices::getInstance()->getSearchEngineFactory()->create( $type );
			$limit = $params['limit'];
			$searchEngine->setNamespaces( $params['namespace'] );
			$offset = null;
			if ( isset( $params['offset'] ) ) {
				// If the API supports offset then it probably
				// wants to fetch limit+1 so it can check if
				// more results are available to properly set
				// the continue param
				$offset = $params['offset'];
				$limit += 1;
			}
			$searchEngine->setLimitOffset( $limit, $offset );

			// Initialize requested search profiles.
			$configs = $this->getSearchProfileParams();
			foreach ( $configs as $paramName => $paramConfig ) {
				if ( isset( $params[$paramName] ) ) {
					$searchEngine->setFeatureData(
						$paramConfig['profile-type'],
						$params[$paramName]
					);
				}
			}
		} else {
			$searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
		}
		return $searchEngine;
	}

	/**
	 * @return array[] array of arrays mapping from parameter name to a two value map
	 *  containing 'help-message' and 'profile-type' keys.
	 */
	abstract public function getSearchProfileParams();

	/**
	 * @return IContextSource
	 */
	abstract public function getContext();
}


1			<?php
2			use MediaWiki\MediaWikiServices;
3
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			* @since 1.28
22			*/
23
24			/**
25			* Traits for API components that use a SearchEngine.
26			* @ingroup API
27			*/
28			trait SearchApi {
29
30			/**
31			* When $wgSearchType is null, $wgSearchAlternatives[0] is null. Null isn't
32			* a valid option for an array for PARAM_TYPE, so we'll use a fake name
33			* that can't possibly be a class name and describes what the null behavior
34			* does
35			*/
36			private static $BACKEND_NULL_PARAM = 'database-backed';
37
38			/**
39			* The set of api parameters that are shared between api calls that
40			* call the SearchEngine. Primarily this defines parameters that
41			* are utilized by self::buildSearchEngine().
42			*
43			* @param bool $isScrollable True if the api offers scrolling
44			* @return array
45			*/
46			public function buildCommonApiParams( $isScrollable = true ) {
47			$params = [
48			'search' => [
49			ApiBase::PARAM_TYPE => 'string',
50			ApiBase::PARAM_REQUIRED => true,
51			],
52			'namespace' => [
53			ApiBase::PARAM_DFLT => NS_MAIN,
54			ApiBase::PARAM_TYPE => 'namespace',
55			ApiBase::PARAM_ISMULTI => true,
56			],
57			'limit' => [
58			ApiBase::PARAM_DFLT => 10,
59			ApiBase::PARAM_TYPE => 'limit',
60			ApiBase::PARAM_MIN => 1,
61			ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
62			ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2,
63			],
64			];
65			if ( $isScrollable ) {
66			$params['offset'] = [
67			ApiBase::PARAM_DFLT => 0,
68			ApiBase::PARAM_TYPE => 'integer',
69			ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
70			];
71			}
72
73			$searchConfig = MediaWikiServices::getInstance()->getSearchEngineConfig();
74			$alternatives = $searchConfig->getSearchTypes();
75			if ( count( $alternatives ) > 1 ) {
76			if ( $alternatives[0] === null ) {
77			$alternatives[0] = self::$BACKEND_NULL_PARAM;
78			}
79			$this->allowedParams['backend'] = [
			0 ignored issues – show Bug introduced 2016-07-27 17:46 UTC by Report Bug Copy Issue Report The property `allowedParams` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
80			ApiBase::PARAM_DFLT => $searchConfig->getSearchType(),
81			ApiBase::PARAM_TYPE => $alternatives,
82			];
83			// @todo: support profile selection when multiple
84			// backends are available. The solution could be to
85			// merge all possible profiles and let ApiBase
86			// subclasses do the check. Making ApiHelp and ApiSandbox
87			// comprehensive might be more difficult.
88			} else {
89			$params += $this->buildProfileApiParam();
90			}
91
92			return $params;
93			}
94
95			/**
96			* Build the profile api param definitions. Makes bold assumption only one search
97			* engine is available, ensure that is true before calling.
98			*
99			* @return array array containing available additional api param definitions.
100			* Empty if profiles are not supported by the searchEngine implementation.
101			*/
102			private function buildProfileApiParam() {
103			$configs = $this->getSearchProfileParams();
104			$searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
105			$params = [];
106			foreach ( $configs as $paramName => $paramConfig ) {
107			$profiles = $searchEngine->getProfiles( $paramConfig['profile-type'],
108			$this->getContext()->getUser() );
109			if ( !$profiles ) {
110			continue;
111			}
112
113			$types = [];
114			$helpMessages = [];
115			$defaultProfile = null;
116			foreach ( $profiles as $profile ) {
117			$types[] = $profile['name'];
118			if ( isset ( $profile['desc-message'] ) ) {
119			$helpMessages[$profile['name']] = $profile['desc-message'];
120			}
121			if ( !empty( $profile['default'] ) ) {
122			$defaultProfile = $profile['name'];
123			}
124			}
125
126			$params[$paramName] = [
127			ApiBase::PARAM_TYPE => $types,
128			ApiBase::PARAM_HELP_MSG => $paramConfig['help-message'],
129			ApiBase::PARAM_HELP_MSG_PER_VALUE => $helpMessages,
130			ApiBase::PARAM_DFLT => $defaultProfile,
131			];
132			}
133
134			return $params;
135			}
136
137			/**
138			* Build the search engine to use.
139			* If $params is provided then the following searchEngine options
140			* will be set:
141			* - backend: which search backend to use
142			* - limit: mandatory
143			* - offset: optional, if set limit will be incremented by
144			* one ( to support the continue parameter )
145			* - namespace: mandatory
146			* - search engine profiles defined by SearchApi::getSearchProfileParams()
147			* @param string[]\|null API request params (must be sanitized by
148			* ApiBase::extractRequestParams() before)
149			* @return SearchEngine the search engine
150			*/
151			public function buildSearchEngine( array $params = null ) {
152			if ( $params != null ) {
153			$type = isset( $params['backend'] ) ? $params['backend'] : null;
154			if ( $type === self::$BACKEND_NULL_PARAM ) {
155			$type = null;
156			}
157			$searchEngine = MediaWikiServices::getInstance()->getSearchEngineFactory()->create( $type );
158			$limit = $params['limit'];
159			$searchEngine->setNamespaces( $params['namespace'] );
160			$offset = null;
161			if ( isset( $params['offset'] ) ) {
162			// If the API supports offset then it probably
163			// wants to fetch limit+1 so it can check if
164			// more results are available to properly set
165			// the continue param
166			$offset = $params['offset'];
167			$limit += 1;
168			}
169			$searchEngine->setLimitOffset( $limit, $offset );
170
171			// Initialize requested search profiles.
172			$configs = $this->getSearchProfileParams();
173			foreach ( $configs as $paramName => $paramConfig ) {
174			if ( isset( $params[$paramName] ) ) {
175			$searchEngine->setFeatureData(
176			$paramConfig['profile-type'],
177			$params[$paramName]
178			);
179			}
180			}
181			} else {
182			$searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
183			}
184			return $searchEngine;
185			}
186
187			/**
188			* @return array[] array of arrays mapping from parameter name to a two value map
189			* containing 'help-message' and 'profile-type' keys.
190			*/
191			abstract public function getSearchProfileParams();
192
193			/**
194			* @return IContextSource
195			*/
196			abstract public function getContext();
197			}
198

wikimedia / mediawiki

SearchApi::buildSearchEngine() C last analyzed 2016-11-13 17:42 UTC

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SearchApi::buildSearchEngine() C
last analyzed 2016-11-13 17:42 UTC