ApiSetSortedTrait - Code Metrics - Inspection of "Merge pull request #4 from hidehalo/wip" - dazzle-php/redis - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 93ca92...ff64f1 )

by Kamil

created 2017-07-11 16:33 UTC

ApiSetSortedTrait B

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	342
Duplicated Lines	25.44 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

84.29%

Importance

Changes

Metric	Value
dl	87
loc	342
c	0
b	0
f	0
wmc	41
lcom	1
cbo	1
ccs	118
cts	140
cp	0.8429
rs	8.2769

22 Methods

Rating	Name	Duplication	Size	Complexity
	dispatch()	0	1	?
A	zAdd()	7	7	1
A	zCard()	7	7	1
A	zCount()	7	7	1
A	zIncrBy()	0	7	1
A	zInterStore()	0	8	1
A	zLexCount()	7	7	1
A	zRange()	0	18	3
A	zRangeByLex()	0	8	1
A	zRevRangeByLex()	0	8	1
C	zRangeByScore()	28	28	8
A	zRank()	0	7	1
A	zRem()	0	8	1
A	zRemRangeByLex()	0	8	1
A	zRemRangeByRank()	0	7	1
A	zRemRangeByScore()	0	8	1
B	zRevRange()	0	28	5
C	zRevRangeByScore()	28	28	8
A	zRevRank()	0	7	1
A	zScore()	0	7	1
A	zScan()	0	9	1
A	zUnionScore()	0	8	1

How to fix Duplicated Code Complexity

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

If you have the same expression in different places: Extract expression to a method
If you have the same method in different sub-classes: Extract method, and pull up field to the parent class
If you have the same code in unrelated classes: Consider extracting the code to a new class, and injecting that class

Complex Class

Tip: Before tackling complexity, make sure that you eliminate any duplication first. This often can reduce the size of classes significantly.

Complex classes like ApiSetSortedTrait often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

While breaking up the class, it is a good idea to analyze how other classes use ApiSetSortedTrait, and based on these observations, apply Extract Interface, too.

<?php

namespace Dazzle\Redis\Command\Compose;

use Dazzle\Redis\Command\Builder;
use Dazzle\Redis\Command\Enum;
use Dazzle\Redis\Driver\Request;

trait ApiSetSortedTrait
{
    /**
     * @param Request $request
     * @return mixed
     */
    abstract function dispatch(Request $request);


    /**
     * @override
     * @inheritDoc
     */
    public function zAdd($key, array $options = [], ...$scoreMembers)

    {
        $command = Enum::ZADD;
        $args = array_merge([$key], $options, $scoreMembers);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zCard($key)

    {
        $command = Enum::ZCARD;
        $args = [$key];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zCount($key, $min, $max)

    {
        $command = Enum::ZCOUNT;
        $args = [$key, $min, $max];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zIncrBy($key, $increment, $member)
    {
        $command = Enum::ZINCRBY;
        $args = [$key, $increment, $member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zInterStore($dst, $numKeys)
    {
        // TODO: Implement zInterStore() method.
        $command = Enum::ZINTERSTORE;
        $args = [$dst, $numKeys];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zLexCount($key, $min, $max)

    {
        $command = Enum::ZLEXCOUNT;
        $args = [$key, $min, $max];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRange($key, $star = 0, $stop = -1, $withScores = false)
    {
        $command = Enum::ZRANGE;
        $args = [$key, $star, $stop];
        if ($withScores) {
            $args[] = 'WITHSCORES';
            return $this->dispatch(Builder::build($command, $args))->then(function ($value) {
                $len = count($value);
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }
                return $ret;
            });
        }

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRangeByLex($key, $min, $max, array $options = [])
    {
        $command = Enum::ZRANGEBYLEX;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRangeByLex($key, $max, $min, array $options = [])
    {
        $command = Enum::ZREVRANGEBYLEX;
        $args = [$key, $max,$min];
        $args = array_merge($args,$options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRangeByScore($key, $min, $max, $withScores = false, $offset = 0, $count = 0)

    {
        $command = Enum::ZRANGEBYSCORE;
        $args = [$key, $min, $max];
        if ($withScores === true) {
            $args[] = 'WITHSCORES';
        }
        if ($offset != 0 || $count != 0) {
            $args[] = 'LIMIT';
            $args[] = $offset;
            $args[] = $count;
        }
        $promise = $this->dispatch(Builder::build($command, $args));

        return $withScores ? $promise->then(function ($value) {
            $len = is_array($value) ? count($value) : 0;
            if ($len > 0) {
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }

                return $ret;
            }

            return $value;
        } ) : $promise;
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRank($key, $member)
    {
        $command = Enum::ZRANK;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRem($key, ...$members)
    {
        $command = Enum::ZREM;
        $args = [$key];
        $args = array_merge($args, $members);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByLex($key, $min, $max, array $options = [])
    {
        $command = Enum::ZREMRANGEBYLEX;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByRank($key, $start, $stop)
    {
        $command = Enum::ZREMRANGEBYRANK;
        $args = [$key, $start,$stop];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByScore($key, $min, $max, array $options = [])
    {
        $command = Enum::ZREMRANGEBYSCORE;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRange($key, $start, $stop, $withScores = false)
    {
        $command = Enum::ZREVRANGE;
        $args = [$key, $start, $stop];

        if ($withScores === true) {
            $args[] = 'WITHSCORES';
            
            return $this->dispatch(Builder::build($command, $args))
            ->then(function ($value) {
                $len = is_array($value) ? count($value) : 0;
                if ($len > 0) {
                    $ret = [];
                    for ($i=0; $i<$len; $i+=2) {
                        $member = $value[$i];
                        $score = $value[$i+1];
                        $ret[$member] = $score;
                    }

                    return $ret;
                }

                return $value; 
            });
        } 

        return $promise = $this->dispatch(Builder::build($command, $args));
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRangeByScore($key, $max, $min, $withScores = false, $offset = 0, $count = 0)

    {
        $command = Enum::ZREVRANGEBYSCORE;
        $args = [$key, $max, $min];
        if ($withScores === true) {
            $args[] = 'WITHSCORES';
        }
        if ($offset != 0 || $count != 0) {
            $args[] = 'LIMIT';
            $args[] = $offset;
            $args[] = $count;
        }
        $promise = $this->dispatch(Builder::build($command, $args));

        return $withScores ? $promise->then(function ($value) {
            $len = is_array($value) ? count($value) : 0;
            if ($len > 0) {
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }

                return $ret;
            }

            return $value;
        } ) : $promise;
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRank($key, $member)
    {
        $command = Enum::ZREVRANK;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zScore($key, $member)
    {
        $command = Enum::ZSCORE;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zScan($key, $cursor, array $options = [])
    {
        // TODO: Implement zScan() method.
        $command = Enum::ZSCAN;
        $args = [$key , $cursor];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @inheritDoc
     */
    public function zUnionScore($dst, $numKeys)
    {
        // TODO: Implement zUnionScore() method.
        $command = Enum::ZUNIIONSCORE;
        $args = [$dst, $numKeys];

        return $this->dispatch(Builder::build($command, $args));
    }
}

1			<?php
2
3			namespace Dazzle\Redis\Command\Compose;
4
5			use Dazzle\Redis\Command\Builder;
6			use Dazzle\Redis\Command\Enum;
7			use Dazzle\Redis\Driver\Request;
8
9			trait ApiSetSortedTrait
10			{
11			/**
12			* @param Request $request
13			* @return mixed
14			*/
15			abstract function dispatch(Request $request);
			0 ignored issues – show Best Practice introduced 2017-07-02 15:04 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
16
17			/**
18			* @override
19			* @inheritDoc
20			*/
21	16	View Code Duplication	public function zAdd($key, array $options = [], ...$scoreMembers)
			0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
22			{
23	16		$command = Enum::ZADD;
24	16		$args = array_merge([$key], $options, $scoreMembers);
25
26	16		return $this->dispatch(Builder::build($command, $args));
27			}
28
29			/**
30			* @override
31			* @inheritDoc
32			*/
33	1	View Code Duplication	public function zCard($key)
			0 ignored issues – show Duplication introduced 2017-07-03 14:32 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
34			{
35	1		$command = Enum::ZCARD;
36	1		$args = [$key];
37
38	1		return $this->dispatch(Builder::build($command, $args));
39			}
40
41			/**
42			* @override
43			* @inheritDoc
44			*/
45	1	View Code Duplication	public function zCount($key, $min, $max)
			0 ignored issues – show Duplication introduced 2017-07-01 22:13 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
46			{
47	1		$command = Enum::ZCOUNT;
48	1		$args = [$key, $min, $max];
49
50	1		return $this->dispatch(Builder::build($command, $args));
51			}
52
53			/**
54			* @override
55			* @inheritDoc
56			*/
57	1		public function zIncrBy($key, $increment, $member)
58			{
59	1		$command = Enum::ZINCRBY;
60	1		$args = [$key, $increment, $member];
61
62	1		return $this->dispatch(Builder::build($command, $args));
63			}
64
65			/**
66			* @override
67			* @inheritDoc
68			*/
69			public function zInterStore($dst, $numKeys)
70			{
71			// TODO: Implement zInterStore() method.
72			$command = Enum::ZINTERSTORE;
73			$args = [$dst, $numKeys];
74
75			return $this->dispatch(Builder::build($command, $args));
76			}
77
78			/**
79			* @override
80			* @inheritDoc
81			*/
82	1	View Code Duplication	public function zLexCount($key, $min, $max)
			0 ignored issues – show Duplication introduced 2017-07-01 22:13 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
83			{
84	1		$command = Enum::ZLEXCOUNT;
85	1		$args = [$key, $min, $max];
86
87	1		return $this->dispatch(Builder::build($command, $args));
88			}
89
90			/**
91			* @override
92			* @inheritDoc
93			*/
94	1		public function zRange($key, $star = 0, $stop = -1, $withScores = false)
95			{
96	1		$command = Enum::ZRANGE;
97	1		$args = [$key, $star, $stop];
98	1		if ($withScores) {
99	1		$args[] = 'WITHSCORES';
100			return $this->dispatch(Builder::build($command, $args))->then(function ($value) {
101	1		$len = count($value);
102	1		$ret = [];
103	1		for ($i=0; $i<$len; $i+=2) {
104	1		$ret[$value[$i]] = $value[$i+1];
105			}
106	1		return $ret;
107	1		});
108			}
109
110			return $this->dispatch(Builder::build($command, $args));
111			}
112
113			/**
114			* @override
115			* @inheritDoc
116			*/
117	1		public function zRangeByLex($key, $min, $max, array $options = [])
118			{
119	1		$command = Enum::ZRANGEBYLEX;
120	1		$args = [$key, $min, $max];
121	1		$args = array_merge($args, $options);
122
123	1		return $this->dispatch(Builder::build($command, $args));
124			}
125
126			/**
127			* @override
128			* @inheritDoc
129			*/
130	1		public function zRevRangeByLex($key, $max, $min, array $options = [])
131			{
132	1		$command = Enum::ZREVRANGEBYLEX;
133	1		$args = [$key, $max,$min];
134	1		$args = array_merge($args,$options);
135
136	1		return $this->dispatch(Builder::build($command, $args));
137			}
138
139			/**
140			* @override
141			* @inheritDoc
142			*/
143	1	View Code Duplication	public function zRangeByScore($key, $min, $max, $withScores = false, $offset = 0, $count = 0)
			0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
144			{
145	1		$command = Enum::ZRANGEBYSCORE;
146	1		$args = [$key, $min, $max];
147	1		if ($withScores === true) {
148	1		$args[] = 'WITHSCORES';
149			}
150	1		if ($offset != 0 \|\| $count != 0) {
151	1		$args[] = 'LIMIT';
152	1		$args[] = $offset;
153	1		$args[] = $count;
154			}
155	1		$promise = $this->dispatch(Builder::build($command, $args));
156
157			return $withScores ? $promise->then(function ($value) {
158	1		$len = is_array($value) ? count($value) : 0;
159	1		if ($len > 0) {
160	1		$ret = [];
161	1		for ($i=0; $i<$len; $i+=2) {
162	1		$ret[$value[$i]] = $value[$i+1];
163			}
164
165	1		return $ret;
166			}
167
168			return $value;
169	1		} ) : $promise;
170			}
171
172			/**
173			* @override
174			* @inheritDoc
175			*/
176	1		public function zRank($key, $member)
177			{
178	1		$command = Enum::ZRANK;
179	1		$args = [$key,$member];
180
181	1		return $this->dispatch(Builder::build($command, $args));
182			}
183
184			/**
185			* @override
186			* @inheritDoc
187			*/
188	1		public function zRem($key, ...$members)
189			{
190	1		$command = Enum::ZREM;
191	1		$args = [$key];
192	1		$args = array_merge($args, $members);
193
194	1		return $this->dispatch(Builder::build($command, $args));
195			}
196
197			/**
198			* @override
199			* @inheritDoc
200			*/
201	1		public function zRemRangeByLex($key, $min, $max, array $options = [])
202			{
203	1		$command = Enum::ZREMRANGEBYLEX;
204	1		$args = [$key, $min, $max];
205	1		$args = array_merge($args, $options);
206
207	1		return $this->dispatch(Builder::build($command, $args));
208			}
209
210			/**
211			* @override
212			* @inheritDoc
213			*/
214	1		public function zRemRangeByRank($key, $start, $stop)
215			{
216	1		$command = Enum::ZREMRANGEBYRANK;
217	1		$args = [$key, $start,$stop];
218
219	1		return $this->dispatch(Builder::build($command, $args));
220			}
221
222			/**
223			* @override
224			* @inheritDoc
225			*/
226	1		public function zRemRangeByScore($key, $min, $max, array $options = [])
227			{
228	1		$command = Enum::ZREMRANGEBYSCORE;
229	1		$args = [$key, $min, $max];
230	1		$args = array_merge($args, $options);
231
232	1		return $this->dispatch(Builder::build($command, $args));
233			}
234
235			/**
236			* @override
237			* @inheritDoc
238			*/
239	1		public function zRevRange($key, $start, $stop, $withScores = false)
240			{
241	1		$command = Enum::ZREVRANGE;
242	1		$args = [$key, $start, $stop];
243
244	1		if ($withScores === true) {
245	1		$args[] = 'WITHSCORES';
246
247	1		return $this->dispatch(Builder::build($command, $args))
248			->then(function ($value) {
249	1		$len = is_array($value) ? count($value) : 0;
250	1		if ($len > 0) {
251	1		$ret = [];
252	1		for ($i=0; $i<$len; $i+=2) {
253	1		$member = $value[$i];
254	1		$score = $value[$i+1];
255	1		$ret[$member] = $score;
256			}
257
258	1		return $ret;
259			}
260
261			return $value;
262	1		});
263			}
264
265			return $promise = $this->dispatch(Builder::build($command, $args));
			0 ignored issues – show Unused Code introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report `$promise` 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 `$higher` is always overwritten for every possible time line. Loading history...
266			}
267
268			/**
269			* @override
270			* @inheritDoc
271			*/
272	1	View Code Duplication	public function zRevRangeByScore($key, $max, $min, $withScores = false, $offset = 0, $count = 0)
			0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
273			{
274	1		$command = Enum::ZREVRANGEBYSCORE;
275	1		$args = [$key, $max, $min];
276	1		if ($withScores === true) {
277	1		$args[] = 'WITHSCORES';
278			}
279	1		if ($offset != 0 \|\| $count != 0) {
280	1		$args[] = 'LIMIT';
281	1		$args[] = $offset;
282	1		$args[] = $count;
283			}
284	1		$promise = $this->dispatch(Builder::build($command, $args));
285
286	1		return $withScores ? $promise->then(function ($value) {
287	1		$len = is_array($value) ? count($value) : 0;
288	1		if ($len > 0) {
289	1		$ret = [];
290	1		for ($i=0; $i<$len; $i+=2) {
291	1		$ret[$value[$i]] = $value[$i+1];
292			}
293
294	1		return $ret;
295			}
296
297			return $value;
298	1		} ) : $promise;
299			}
300
301			/**
302			* @override
303			* @inheritDoc
304			*/
305	1		public function zRevRank($key, $member)
306			{
307	1		$command = Enum::ZREVRANK;
308	1		$args = [$key,$member];
309
310	1		return $this->dispatch(Builder::build($command, $args));
311			}
312
313			/**
314			* @override
315			* @inheritDoc
316			*/
317			public function zScore($key, $member)
318			{
319			$command = Enum::ZSCORE;
320			$args = [$key,$member];
321
322			return $this->dispatch(Builder::build($command, $args));
323			}
324
325			/**
326			* @override
327			* @inheritDoc
328			*/
329			public function zScan($key, $cursor, array $options = [])
330			{
331			// TODO: Implement zScan() method.
332			$command = Enum::ZSCAN;
333			$args = [$key , $cursor];
334			$args = array_merge($args, $options);
335
336			return $this->dispatch(Builder::build($command, $args));
337			}
338
339			/**
340			* @inheritDoc
341			*/
342			public function zUnionScore($dst, $numKeys)
343			{
344			// TODO: Implement zUnionScore() method.
345			$command = Enum::ZUNIIONSCORE;
346			$args = [$dst, $numKeys];
347
348			return $this->dispatch(Builder::build($command, $args));
349			}
350			}

dazzle-php / redis