CouchbaseQueue::releaseJobsThatHaveBeenReservedTooLong() - Code Metrics - Inspection of "Merge pull request #37 from ytake/hotfix/n1ql-quer..." - ytake/Laravel-Couchbase - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 07905b...790544 )

by yuuki

created 2016-11-28 15:18 UTC

releaseJobsThatHaveBeenReservedTooLong() A

↳ Parent: CouchbaseQueue

Complexity

Conditions	3
Paths	3

Size

Total Lines	20
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	3.9148

Importance

Changes

Metric	Value
cc	3
eloc	15
nc	3
nop	1
dl	0
loc	20
ccs	8
cts	15
cp	0.5333
crap	3.9148
rs	9.4285
c	0
b	0
f	0

<?php

/**
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

namespace Ytake\LaravelCouchbase\Queue;

use Carbon\Carbon;
use Illuminate\Queue\DatabaseQueue;
use Illuminate\Queue\Jobs\DatabaseJob;
use Ytake\LaravelCouchbase\Query\Builder;
use Ytake\LaravelCouchbase\Database\CouchbaseConnection;

/**
 * Class CouchbaseQueue
 *
 * @author Yuuki Takezawa<[email protected]>
 */
class CouchbaseQueue extends DatabaseQueue
{
    /**
     * The couchbase bucket that holds the jobs.
     *
     * @var string
     */
    protected $table;

    /** @var CouchbaseConnection */
    protected $database;

    /**
     * {@inheritdoc}
     */
    public function pop($queue = null)
    {
        $queue = $this->getQueue($queue);

        if (!is_null($this->expire)) {
            $this->releaseJobsThatHaveBeenReservedTooLong($queue);
        }

        if ($job = $this->getNextAvailableJob($queue)) {
            $this->markJobAsReserved($job->id);
            $bucket = $this->table;
            return new DatabaseJob(
                $this->container, $this, $job->$bucket, $queue
            );
        }

        return null;
    }

    /**
     * {@inheritdoc}
     */
    protected function releaseJobsThatHaveBeenReservedTooLong($queue)
    {
        $bucket = $this->table;
        $expired = Carbon::now()->subSeconds($this->expire)->getTimestamp();

        $first = $this->buildQueueQuery($queue, $expired)
            ->first(['*', 'meta().id']);
        $identifier = null;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
        if ($first) {
            $attempts = (isset($first->$bucket->attempts)) ? $first->$bucket->attempts : 1;
            $identifier = $first->id;
            $this->buildQueueQuery($queue, $expired)
                ->key($identifier)
                ->update([
                    'reserved'    => 0,
                    'reserved_at' => null,
                    'attempts'    => $attempts,
                ]);
        }
    }

    /**
     * @param $queue
     * @param $expired
     *
     * @return Builder
     */
    protected function buildQueueQuery($queue, $expired)
    {
        return $this->database->table($this->table)
            ->where('queue', $this->getQueue($queue))
            ->where('reserved', 1)
            ->where('reserved_at', '<=', $expired);
    }

    /**
     * {@inheritdoc}
     */
    protected function getNextAvailableJob($queue)
    {
        $job = $this->database->table($this->table)
            ->where('queue', $this->getQueue($queue))
            ->where('reserved', 0)
            ->where('available_at', '<=', $this->getTime())
            ->orderBy('id', 'asc')
            ->first(['*', 'meta().id']);

        return $job ? (object)$job : null;
    }

    /**
     * {@inheritdoc}
     */
    protected function markJobAsReserved($id)
    {
        $bucket = $this->table;
        /** @var \CouchbaseBucket $openBucket */
        $openBucket = $this->database->openBucket($bucket);
        // lock bucket
        $meta = $openBucket->getAndLock($id, 10);
        $meta->value->reserved = 1;
        $meta->value->reserved_at = $this->getTime();
        $openBucket->replace($id, $meta->value, ['cas' => $meta->cas]);

        return $meta->value;
    }

    /**
     * {@inheritdoc}
     */
    public function bulk($jobs, $data = '', $queue = null)
    {
        $queue = $this->getQueue($queue);

        $availableAt = $this->getAvailableAt(0);

        $records = array_map(function ($job) use ($queue, $data, $availableAt) {
            return $this->buildDatabaseRecord(
                $queue, $this->createPayload($job, $data), $availableAt
            );
        }, (array)$jobs);
        foreach ($records as $record) {
            $increment = $this->incrementKey();
            $record['id'] = $increment;
            $this->database->table($this->table)
                ->key($this->uniqueKey($record))->insert($record);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function deleteReserved($queue, $id)
    {
        $this->database->table($this->table)->where('id', $id)->delete();
    }

    /**
     * {@inheritdoc}
     */
    protected function pushToDatabase($delay, $queue, $payload, $attempts = 0)
    {
        $attributes = $this->buildDatabaseRecord(
            $this->getQueue($queue), $payload, $this->getAvailableAt($delay), $attempts
        );
        $increment = $this->incrementKey();
        $attributes['id'] = $increment;
        $result = $this->database->table($this->table)
            ->key($this->uniqueKey($attributes))->insert($attributes);
        if ($result) {
            return $increment;
        }

        return false;
    }

    /**
     * generate increment key
     *
     * @param int $initial
     *
     * @return int
     */
    protected function incrementKey($initial = 1)
    {
        $result = $this->database->openBucket($this->table)
            ->counter($this->identifier(), $initial, ['initial' => abs($initial)]);

        return $result->value;
    }

    /**
     * @param array $attributes
     *
     * @return string
     */
    protected function uniqueKey(array $attributes)
    {
        $array = array_only($attributes, ['queue', 'attempts', 'id']);

        return implode(':', $array);
    }

    /**
     * @return string
     */
    protected function identifier()
    {
        return __CLASS__ . ':sequence';
    }
}


1		<?php
2
3		/**
4		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
6		* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
7		* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
8		* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
9		* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
10		* THE SOFTWARE.
11		*/
12
13		namespace Ytake\LaravelCouchbase\Queue;
14
15		use Carbon\Carbon;
16		use Illuminate\Queue\DatabaseQueue;
17		use Illuminate\Queue\Jobs\DatabaseJob;
18		use Ytake\LaravelCouchbase\Query\Builder;
19		use Ytake\LaravelCouchbase\Database\CouchbaseConnection;
20
21		/**
22		* Class CouchbaseQueue
23		*
24		* @author Yuuki Takezawa<[email protected]>
25		*/
26		class CouchbaseQueue extends DatabaseQueue
27		{
28		/**
29		* The couchbase bucket that holds the jobs.
30		*
31		* @var string
32		*/
33		protected $table;
34
35		/** @var CouchbaseConnection */
36		protected $database;
37
38		/**
39		* {@inheritdoc}
40		*/
41	1	public function pop($queue = null)
42		{
43	1	$queue = $this->getQueue($queue);
44
45	1	if (!is_null($this->expire)) {
46	1	$this->releaseJobsThatHaveBeenReservedTooLong($queue);
47		}
48
49	1	if ($job = $this->getNextAvailableJob($queue)) {
50	1	$this->markJobAsReserved($job->id);
51	1	$bucket = $this->table;
52	1	return new DatabaseJob(
53	1	$this->container, $this, $job->$bucket, $queue
54		);
55		}
56
57	1	return null;
58		}
59
60		/**
61		* {@inheritdoc}
62		*/
63	1	protected function releaseJobsThatHaveBeenReservedTooLong($queue)
64		{
65	1	$bucket = $this->table;
66	1	$expired = Carbon::now()->subSeconds($this->expire)->getTimestamp();
67
68	1	$first = $this->buildQueueQuery($queue, $expired)
69	1	->first(['*', 'meta().id']);
70	1	$identifier = null;
		0 ignored issues – show Unused Code introduced 2016-11-28 15:15 UTC by Report Bug Copy Issue Report `$identifier` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
71	1	if ($first) {
72		$attempts = (isset($first->$bucket->attempts)) ? $first->$bucket->attempts : 1;
73		$identifier = $first->id;
74		$this->buildQueueQuery($queue, $expired)
75		->key($identifier)
76		->update([
77		'reserved' => 0,
78		'reserved_at' => null,
79		'attempts' => $attempts,
80		]);
81		}
82	1	}
83
84		/**
85		* @param $queue
86		* @param $expired
87		*
88		* @return Builder
89		*/
90	1	protected function buildQueueQuery($queue, $expired)
91		{
92	1	return $this->database->table($this->table)
93	1	->where('queue', $this->getQueue($queue))
94	1	->where('reserved', 1)
95	1	->where('reserved_at', '<=', $expired);
96		}
97
98		/**
99		* {@inheritdoc}
100		*/
101	1	protected function getNextAvailableJob($queue)
102		{
103	1	$job = $this->database->table($this->table)
104	1	->where('queue', $this->getQueue($queue))
105	1	->where('reserved', 0)
106	1	->where('available_at', '<=', $this->getTime())
107	1	->orderBy('id', 'asc')
108	1	->first(['*', 'meta().id']);
109
110	1	return $job ? (object)$job : null;
111		}
112
113		/**
114		* {@inheritdoc}
115		*/
116	1	protected function markJobAsReserved($id)
117		{
118	1	$bucket = $this->table;
119		/** @var \CouchbaseBucket $openBucket */
120	1	$openBucket = $this->database->openBucket($bucket);
121		// lock bucket
122	1	$meta = $openBucket->getAndLock($id, 10);
123	1	$meta->value->reserved = 1;
124	1	$meta->value->reserved_at = $this->getTime();
125	1	$openBucket->replace($id, $meta->value, ['cas' => $meta->cas]);
126
127	1	return $meta->value;
128		}
129
130		/**
131		* {@inheritdoc}
132		*/
133	1	public function bulk($jobs, $data = '', $queue = null)
134		{
135	1	$queue = $this->getQueue($queue);
136
137	1	$availableAt = $this->getAvailableAt(0);
138
139	1	$records = array_map(function ($job) use ($queue, $data, $availableAt) {
140	1	return $this->buildDatabaseRecord(
141	1	$queue, $this->createPayload($job, $data), $availableAt
142		);
143	1	}, (array)$jobs);
144	1	foreach ($records as $record) {
145	1	$increment = $this->incrementKey();
146	1	$record['id'] = $increment;
147	1	$this->database->table($this->table)
148	1	->key($this->uniqueKey($record))->insert($record);
149		}
150	1	}
151
152		/**
153		* {@inheritdoc}
154		*/
155	1	public function deleteReserved($queue, $id)
156		{
157	1	$this->database->table($this->table)->where('id', $id)->delete();
158	1	}
159
160		/**
161		* {@inheritdoc}
162		*/
163		protected function pushToDatabase($delay, $queue, $payload, $attempts = 0)
164		{
165		$attributes = $this->buildDatabaseRecord(
166		$this->getQueue($queue), $payload, $this->getAvailableAt($delay), $attempts
167		);
168		$increment = $this->incrementKey();
169		$attributes['id'] = $increment;
170		$result = $this->database->table($this->table)
171		->key($this->uniqueKey($attributes))->insert($attributes);
172		if ($result) {
173		return $increment;
174		}
175
176		return false;
177		}
178
179		/**
180		* generate increment key
181		*
182		* @param int $initial
183		*
184		* @return int
185		*/
186	1	protected function incrementKey($initial = 1)
187		{
188	1	$result = $this->database->openBucket($this->table)
189	1	->counter($this->identifier(), $initial, ['initial' => abs($initial)]);
190
191	1	return $result->value;
192		}
193
194		/**
195		* @param array $attributes
196		*
197		* @return string
198		*/
199	1	protected function uniqueKey(array $attributes)
200		{
201	1	$array = array_only($attributes, ['queue', 'attempts', 'id']);
202
203	1	return implode(':', $array);
204		}
205
206		/**
207		* @return string
208		*/
209	1	protected function identifier()
210		{
211	1	return __CLASS__ . ':sequence';
212		}
213		}
214

ytake / Laravel-Couchbase

Push — master ( 07905b...790544 )

releaseJobsThatHaveBeenReservedTooLong() A

Complexity

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Duplication

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