TopController::topSort() - Code Metrics - Inspection of "Merge branch '6-top_controllers' into 8.x-2.x" - FGM/mongodb - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 8.x-2.x ( 0f1fa4...cba9bd )

by Frédéric G.

created 2016-06-26 09:43 UTC

TopController::topSort() A

↳ Parent: TopController

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	4
c	1
b	0
f	0
nc	1
nop	2
dl	0
loc	5
rs	9.4285

<?php

namespace Drupal\mongodb_watchdog\Controller;

use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\mongodb_watchdog\Logger;
use MongoDB\BSON\Javascript;
use MongoDB\Collection;
use MongoDB\Database;
use Psr\Log\LoggerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Class TopController implements the Top403/Top404 controllers.
 */
class TopController implements ContainerInjectionInterface {

  /**
   * The database holding the logger collections.
   *
   * @var \MongoDB\Database
   */
  protected $db;


  /**
   * The logger channel service, used to log events.
   *
   * @var \Psr\Log\LoggerInterface
   */
  protected $logger;

  /**
   * The concrete logger instance, used to access data.
   *
   * @var \Drupal\mongodb_watchdog\Logger
   */
  protected $watchdog;

  /**
   * TopController constructor.
   *
   * @param \Psr\Log\LoggerInterface $logger
   *   The logger channel service, to log errors occurring.
   * @param \Drupal\mongodb_watchdog\Logger $watchdog
   *   The MongoDB Logger service, to load the events.
   * @param \MongoDB\Database $db
   *   Needed because there is no group() command in phplib yet.
   *
   * @see https://jira.mongodb.org/browse/PHPLIB-177
   */
  public function __construct(LoggerInterface $logger, Logger $watchdog, Database $db) {

    $this->db = $db;
    $this->logger = $logger;
    $this->watchdog = $watchdog;
  }

  /**
   * The controller for /admin/reports/mongodb/access-denied.
   *
   * @return array
   *   A render array.
   */
  public function top403() {
    $ret = $this->top('access denied');
    return $ret;
  }

  /**
   * The controller for /admin/reports/mongodb/page-not-found.
   *
   * @return array
   *   A render array.
   */
  public function top404() {
    $ret = $this->top('page not found');
    return $ret;
  }

  /**
   * Command wrapper for missing MongoDB group() implementation in PHPlib.
   *
   * @param \MongoDB\Collection $collection
   *   The collection on which to perform the command.
   * @param object $key
   *   The grouping key.
   * @param object $cond
   *   The condition.
   * @param string $reduce
   *   The reducer function: must be valid JavaScript code.
   * @param object $initial
   *   The initial document.
   *
   * @return array|void
   *   Void in case of error, otherwise an array with the following keys:
   *   - waitedMS: time spent waiting
   *   - retval: an array of command results, containing at least the key
   *   - count: the total number of documents matched
   *   - keys: the number of different keys, normally matching count(retval)
   *   - ok: 1.0 in case of success.
   */
  public function group(Collection $collection, $key, $cond, $reduce, $initial) {
    $options = [
      'typeMap' => [
        'array' => 'array',
        'document' => 'array',
        'root' => 'array',
      ],
    ];

    $cursor = $this->db->command([
      'group' => [
        'ns' => $collection->getCollectionName(),
        'key' => $key,
        'cond' => $cond,
        'initial' => $initial,
        '$reduce' => new Javascript($reduce),
      ],
    ], $options);

    $ret = $cursor->toArray();
    $ret = reset($ret);
    return $ret;
  }

  /**
   * Callback for usort() to sort top entries returned from a group query.
   *
   * @param array $x
   *   The first value to compare.
   * @param array $y
   *   The second value to compare.
   *
   * @return bool

   *   The comparison result.
   *
   * @see \Drupal\mongodb_watchdog\Controller\TopController::top()
   */
  protected function topSort(array $x, array $y) {

    $cx = $x['count'];

    $cy = $y['count'];

    return $cy - $cx;
  }

  /**
   * Generic controller for admin/reports/mongodb/<top report>.
   *
   * @return array
   *   A render array.
   */
  protected function top($type) {
    $ret = [];
    $type_param = ['%type' => $type];
    $limit = 50;

    // Safety net.
    $types = [
      'page not found',
      'access denied',
    ];
    if (!in_array($type, $types)) {
      $error = t('Unknown top report type: %type', $type_param);
      drupal_set_message($error, 'error');
      $this->logger->warning('Unknown top report type: %type', $type_param);
      $ret = [
        '#markup' => '',
      ];
      return $ret;
    }

    // Find _id for the error type.
    $template_collection = $this->watchdog->templateCollection();
    $template = $template_collection->findOne(['type' => $type], ['_id']);

    // Method findOne() will return NULL if no row is found.
    $ret['empty'] = array(
      '#markup' => t('No "%type" message found', $type_param),
      '#prefix' => '<div class="mongodb-watchdog-message">',
      '#suffix' => '</div>',
    );
    if (empty($template)) {
      return $ret;
    }

    // Find occurrences of error type.
    $collection_name = $template['_id'];
    $event_collection = $this->watchdog->eventCollection($collection_name);

    $key = ['variables.@uri' => 1];
    $cond = [];
    $reduce = <<<EOT
function (doc, accumulator) { 
  accumulator.count++; 
}
EOT;
    $initial = ['count' => 0];
    $counts = $this->group($event_collection, $key, $cond, $reduce, $initial);

    if (empty($counts['ok'])) {
      return $ret;
    }

    $counts = $counts['retval'];
    usort($counts, [$this, 'topSort']);
    $counts = array_slice($counts, 0, $limit);

    $header = array(
      t('#'),
      t('Paths'),
    );
    $rows = array();
    foreach ($counts as $count) {
      $rows[] = array(
        $count['count'],
        $count['variables.@uri'],
      );
    }

    $ret = array(
      '#theme' => 'table',
      '#header' => $header,
      '#rows' => $rows,
    );
    return $ret;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    /** @var \Psr\Log\LoggerInterface $logger */
    $logger = $container->get('logger.factory')->get('mongodb_watchdog');

    /** @var \Drupal\mongodb_watchdog\Logger $watchdog */
    $watchdog = $container->get('mongodb.logger');

    /** @var \MongoDB\Database $db */
    $db = $container->get('mongodb.watchdog_storage');

    return new static($logger, $watchdog, $db);
  }

}



1			<?php
2
3			namespace Drupal\mongodb_watchdog\Controller;
4
5			use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
6			use Drupal\mongodb_watchdog\Logger;
7			use MongoDB\BSON\Javascript;
8			use MongoDB\Collection;
9			use MongoDB\Database;
10			use Psr\Log\LoggerInterface;
11			use Symfony\Component\DependencyInjection\ContainerInterface;
12
13			/**
14			* Class TopController implements the Top403/Top404 controllers.
15			*/
16			class TopController implements ContainerInjectionInterface {
17
18			/**
19			* The database holding the logger collections.
20			*
21			* @var \MongoDB\Database
22			*/
23			protected $db;
			0 ignored issues – show Comprehensibility introduced 2016-06-26 09:46 UTC by Report Bug Copy Issue Report Avoid variables with short names like $db. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
24
25			/**
26			* The logger channel service, used to log events.
27			*
28			* @var \Psr\Log\LoggerInterface
29			*/
30			protected $logger;
31
32			/**
33			* The concrete logger instance, used to access data.
34			*
35			* @var \Drupal\mongodb_watchdog\Logger
36			*/
37			protected $watchdog;
38
39			/**
40			* TopController constructor.
41			*
42			* @param \Psr\Log\LoggerInterface $logger
43			* The logger channel service, to log errors occurring.
44			* @param \Drupal\mongodb_watchdog\Logger $watchdog
45			* The MongoDB Logger service, to load the events.
46			* @param \MongoDB\Database $db
47			* Needed because there is no group() command in phplib yet.
48			*
49			* @see https://jira.mongodb.org/browse/PHPLIB-177
50			*/
51			public function __construct(LoggerInterface $logger, Logger $watchdog, Database $db) {
			0 ignored issues – show Comprehensibility introduced 2016-06-26 09:46 UTC by Report Bug Copy Issue Report Avoid variables with short names like $db. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
52			$this->db = $db;
53			$this->logger = $logger;
54			$this->watchdog = $watchdog;
55			}
56
57			/**
58			* The controller for /admin/reports/mongodb/access-denied.
59			*
60			* @return array
61			* A render array.
62			*/
63			public function top403() {
64			$ret = $this->top('access denied');
65			return $ret;
66			}
67
68			/**
69			* The controller for /admin/reports/mongodb/page-not-found.
70			*
71			* @return array
72			* A render array.
73			*/
74			public function top404() {
75			$ret = $this->top('page not found');
76			return $ret;
77			}
78
79			/**
80			* Command wrapper for missing MongoDB group() implementation in PHPlib.
81			*
82			* @param \MongoDB\Collection $collection
83			* The collection on which to perform the command.
84			* @param object $key
85			* The grouping key.
86			* @param object $cond
87			* The condition.
88			* @param string $reduce
89			* The reducer function: must be valid JavaScript code.
90			* @param object $initial
91			* The initial document.
92			*
93			* @return array\|void
94			* Void in case of error, otherwise an array with the following keys:
95			* - waitedMS: time spent waiting
96			* - retval: an array of command results, containing at least the key
97			* - count: the total number of documents matched
98			* - keys: the number of different keys, normally matching count(retval)
99			* - ok: 1.0 in case of success.
100			*/
101			public function group(Collection $collection, $key, $cond, $reduce, $initial) {
102			$options = [
103			'typeMap' => [
104			'array' => 'array',
105			'document' => 'array',
106			'root' => 'array',
107			],
108			];
109
110			$cursor = $this->db->command([
111			'group' => [
112			'ns' => $collection->getCollectionName(),
113			'key' => $key,
114			'cond' => $cond,
115			'initial' => $initial,
116			'$reduce' => new Javascript($reduce),
117			],
118			], $options);
119
120			$ret = $cursor->toArray();
121			$ret = reset($ret);
122			return $ret;
123			}
124
125			/**
126			* Callback for usort() to sort top entries returned from a group query.
127			*
128			* @param array $x
129			* The first value to compare.
130			* @param array $y
131			* The second value to compare.
132			*
133			* @return bool
			0 ignored issues – show Documentation introduced 2016-06-25 14:44 UTC by Report Bug Copy Issue Report Should the return type not be `integer\|double`? This check compares the return type specified in the `@return` annotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch. Loading history...
134			* The comparison result.
135			*
136			* @see \Drupal\mongodb_watchdog\Controller\TopController::top()
137			*/
138			protected function topSort(array $x, array $y) {
			0 ignored issues – show Comprehensibility introduced 2016-06-26 09:46 UTC by Report Bug Copy Issue Report Avoid variables with short names like $x. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history... Comprehensibility introduced 2016-06-26 09:46 UTC by Report Bug Copy Issue Report Avoid variables with short names like $y. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
139			$cx = $x['count'];
			0 ignored issues – show Comprehensibility introduced 2016-06-25 14:44 UTC by Report Bug Copy Issue Report Avoid variables with short names like $cx. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
140			$cy = $y['count'];
			0 ignored issues – show Comprehensibility introduced 2016-06-25 14:44 UTC by Report Bug Copy Issue Report Avoid variables with short names like $cy. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
141			return $cy - $cx;
142			}
143
144			/**
145			* Generic controller for admin/reports/mongodb/<top report>.
146			*
147			* @return array
148			* A render array.
149			*/
150			protected function top($type) {
151			$ret = [];
152			$type_param = ['%type' => $type];
153			$limit = 50;
154
155			// Safety net.
156			$types = [
157			'page not found',
158			'access denied',
159			];
160			if (!in_array($type, $types)) {
161			$error = t('Unknown top report type: %type', $type_param);
162			drupal_set_message($error, 'error');
163			$this->logger->warning('Unknown top report type: %type', $type_param);
164			$ret = [
165			'#markup' => '',
166			];
167			return $ret;
168			}
169
170			// Find _id for the error type.
171			$template_collection = $this->watchdog->templateCollection();
172			$template = $template_collection->findOne(['type' => $type], ['_id']);
173
174			// Method findOne() will return NULL if no row is found.
175			$ret['empty'] = array(
176			'#markup' => t('No "%type" message found', $type_param),
177			'#prefix' => '<div class="mongodb-watchdog-message">',
178			'#suffix' => '</div>',
179			);
180			if (empty($template)) {
181			return $ret;
182			}
183
184			// Find occurrences of error type.
185			$collection_name = $template['_id'];
186			$event_collection = $this->watchdog->eventCollection($collection_name);
187
188			$key = ['variables.@uri' => 1];
189			$cond = [];
190			$reduce = <<<EOT
191			function (doc, accumulator) {
192			accumulator.count++;
193			}
194			EOT;
195			$initial = ['count' => 0];
196			$counts = $this->group($event_collection, $key, $cond, $reduce, $initial);
197
198			if (empty($counts['ok'])) {
199			return $ret;
200			}
201
202			$counts = $counts['retval'];
203			usort($counts, [$this, 'topSort']);
204			$counts = array_slice($counts, 0, $limit);
205
206			$header = array(
207			t('#'),
208			t('Paths'),
209			);
210			$rows = array();
211			foreach ($counts as $count) {
212			$rows[] = array(
213			$count['count'],
214			$count['variables.@uri'],
215			);
216			}
217
218			$ret = array(
219			'#theme' => 'table',
220			'#header' => $header,
221			'#rows' => $rows,
222			);
223			return $ret;
224			}
225
226			/**
227			* {@inheritdoc}
228			*/
229			public static function create(ContainerInterface $container) {
230			/** @var \Psr\Log\LoggerInterface $logger */
231			$logger = $container->get('logger.factory')->get('mongodb_watchdog');
232
233			/** @var \Drupal\mongodb_watchdog\Logger $watchdog */
234			$watchdog = $container->get('mongodb.logger');
235
236			/** @var \MongoDB\Database $db */
237			$db = $container->get('mongodb.watchdog_storage');
			0 ignored issues – show Comprehensibility introduced 2016-06-26 09:46 UTC by Report Bug Copy Issue Report Avoid variables with short names like $db. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
238			return new static($logger, $watchdog, $db);
239			}
240
241			}
			0 ignored issues – show Coding Style introduced 2016-06-24 15:40 UTC by Report Bug Copy Issue Report As per coding style, files should not end with a newline character. This check marks files that end in a newline character, i.e. an empy line. Loading history...
242

FGM / mongodb

Push — 8.x-2.x ( 0f1fa4...cba9bd )

TopController::topSort() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like