Type - Code Metrics - Inspection of "meta rollback feature implemented" - tarantool-php/mapper - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 6d4316...84d771 )

by Dmitry

created 2016-04-17 16:57 UTC

Type C

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	343
Duplicated Lines	6.41 %

Coupling/Cohesion

Components	1
Dependencies	6

Test Coverage

Coverage

99.41%

Importance

Changes	35
Bugs	5	Features	10

Metric	Value
c	35
b	5
f	10
dl	22
loc	343
wmc	68
lcom	1
cbo	6
ccs	169
cts	170
cp	0.9941
rs	5.6756

27 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	11	1
A	getSpace()	0	8	2
A	getSpaceId()	0	4	1
A	getManager()	0	4	1
A	getName()	0	4	1
A	addProperty()	0	20	3
A	hasProperty()	0	4	1
A	getProperties()	0	4	1
A	getPropertyType()	0	4	1
C	addIndex()	0	34	8
A	setPropertyType()	0	22	3
A	removeProperty()	0	14	2
A	reference()	0	12	2
A	isReference()	0	4	1
B	getReferenceProperty()	0	17	5
A	getReferences()	0	12	3
A	getRequiredProperties()	0	15	4
A	getIndex()	0	4	1
A	dropIndex()	0	3	1
A	getIndexes()	0	4	1
B	findIndex()	0	25	6
A	getIndexTuple()	0	11	3
C	getCompleteTuple()	0	29	8
A	getTuple()	11	11	3
A	fromTuple()	11	11	3
A	encodeProperty()	0	4	1
A	decodeProperty()	0	4	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 Type 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 Type, and based on these observations, apply Extract Interface, too.

<?php

namespace Tarantool\Mapper\Schema;

use Tarantool\Mapper\Contracts;
use LogicException;

class Type implements Contracts\Type
{
    private $convention;
    private $properties = [];
    private $indexes = [];
    private $types = [];

    private $manager;
    private $space;
    private $spaceId;
    private $name;

    public function __construct(Contracts\Manager $manager, $name, array $properties, array $types, array $indexes)
    {
        $this->manager = $manager;
        $this->name = $name;
        $this->convention = $manager->getMeta()->getConvention();
        $this->spaceId = $manager->getSchema()->getSpaceId($name);

        $this->properties = $properties;
        $this->indexes = $indexes;
        $this->types = $types;
    }

    public function getSpace()
    {
        if (!$this->space) {
            $this->space = $this->getManager()->getClient()->getSpace($this->spaceId);
        }

        return $this->space;
    }

    public function getSpaceId()
    {
        return $this->spaceId;
    }

    public function getManager()
    {
        return $this->manager;
    }

    public function getName()
    {
        return $this->name;
    }

    public function addIndex($properties, array $arguments = null)
    {
        $properties = (array) $properties;
        foreach ($properties as $property) {
            if (!$this->hasProperty($property)) {
                throw new LogicException("Unknown property $property for ".$this->name);
            }
        }

        $schema = $this->manager->getSchema();

        $indexName = implode('_', $properties);

        if ($schema->hasIndex($this->getName(), $indexName)) {
            throw new LogicException("Index $indexName already exists!");
        }

        if (!$arguments) {
            $arguments = [];
        }

        if (!array_key_exists('parts', $arguments) || !count($arguments['parts'])) {
            $arguments['parts'] = [];
            foreach ($properties as $property) {
                $arguments['parts'][] = array_search($property, $this->properties) + 1;
                $arguments['parts'][] = $this->convention->getTarantoolType($this->types[$property]);
            }
        }

        $num = $schema->createIndex($this->getName(), $indexName, $arguments);
        $this->indexes[$num] = $properties;

        return $this;
    }

    /**
     * @param $property name
     *
     * @return Type
     */
    public function addProperty($name, $type = null)
    {
        if ($this->hasProperty($name)) {
            throw new LogicException("Duplicate property $name");
        }
        if (!$type) {
            $type = $this->manager->getMeta()->getConvention()->getType($name);
        }
        $this->types[$name] = $type;
        $this->manager->create('property', [
            'space' => $this->spaceId,
            'index' => count($this->properties),
            'name' => $name,
            'type' => $this->types[$name],
        ]);

        $this->properties[] = $name;

        return $this;
    }

    public function hasProperty($name)
    {
        return in_array($name, $this->properties);
    }

    public function getProperties()
    {
        return $this->properties;
    }

    public function getPropertyType($property)
    {
        return $this->types[$property];
    }

    public function setPropertyType($property, $type)
    {
        if (is_array($property)) {
            foreach ($property as $prop) {
                $this->setPropertyType($prop, $type);
            }

            return $this;
        }

        $this->types[$property] = $type;

        // update entity
        $row = $this->getManager()->get('property')->findOne([
class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}
            'space' => $this->spaceId,
            'index' => array_search($property, $this->properties),
        ]);
        $row->type = $type;
        $this->getManager()->save($row);

        return $this;
    }

    public function removeProperty($name)
    {
        if (!$this->hasProperty($name)) {
            throw new LogicException("Unknown property $name");
        }
        $query = [
            'space' => $this->spaceId,
            'index' => array_search($name, $this->properties),
        ];
        $property = $this->manager->get('property')->findOne($query);
class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}
        $this->manager->remove($property);
        unset($this->properties[$name]);
        unset($this->types[$name]);
    }

    public function reference(Contracts\Type $foreign, $property = null)
    {
        if (!$property) {
            $property = $foreign->getName();
        }

        $this->addProperty($property);
        $this->setPropertyType($property, $foreign->getName());
        $this->addIndex($property, ['unique' => false]);

        return $this;
    }

    public function isReference($property)
    {
        return !$this->convention->isPrimitive($this->types[$property]);
    }

    public function getReferenceProperty(Contracts\Type $type)
    {
        $properties = [];
        foreach ($this->types as $property => $propertyType) {
            if ($type->getName() == $propertyType) {
                $properties[] = $property;
            }
        }
        if (!count($properties)) {
            throw new LogicException('Type '.$this->getName().' is not related with '.$type->getName());
        }
        if (count($properties) > 1) {
            throw new LogicException('Multiple type reference found');
        }

        return $properties[0];
    }

    public function getReferences()
    {
        $references = [];
        $convention = $this->manager->getMeta()->getConvention();
        foreach ($this->types as $property => $type) {
            if (!$convention->isPrimitive($type)) {
                $references[$property] = $type;
            }
        }

        return $references;
    }

    public function getRequiredProperties()
    {
        if (!isset($this->requiredProperties)) {
            $this->requiredProperties = ['id' => 1];

            $indexList = $this->manager->getSchema()->listIndexes($this->getName());
            foreach ($indexList as $name => $fields) {
                foreach ($fields as $num) {
                    $this->requiredProperties[$this->properties[$num]] = true;

                }
            }
            $this->requiredProperties = array_keys($this->requiredProperties);

        }

        return $this->requiredProperties;

    }

    public function getIndex($num)
    {
        return $this->indexes[$num];
    }

    public function dropIndex($num)
    {
    }

    public function getIndexes()
    {
        return $this->indexes;
    }

    public function findIndex($query)
    {
        if (!count($query)) {
            return 0;
        }

        sort($query);
        foreach ($this->indexes as $name => $fields) {
            if ($fields == $query) {
                return $name;
            }
        }

        // cast partial index
        $casting = [];

        foreach ($this->indexes as $name => $fields) {
            if (!count(array_diff($query, $fields))) {
                $casting[count(array_diff($fields, $query))] = $name;
            }
        }
        ksort($casting);

        return array_shift($casting);
    }

    public function getIndexTuple($index, $params)
    {
        $tuple = [];
        foreach ($this->indexes[$index] as $property) {
            if (array_key_exists($property, $params)) {
                $tuple[array_search($property, $this->indexes[$index])] = $params[$property];
            }
        }

        return $tuple;
    }

    public function getCompleteTuple($input)
    {
        $tuple = $this->getTuple($input);
        $required = $this->getRequiredProperties();

        foreach ($this->getProperties() as $index => $field) {
            if (in_array($field, $required) && !array_key_exists($index, $tuple)) {
                if ($this->isReference($field)) {
                    $tuple[$index] = 0;
                } else {
                    $tuple[$index] = '';
                }
            }
        }

        // normalize tuple
        if (array_values($tuple) != $tuple) {
            // index was skipped
            $max = max(array_keys($tuple));
            foreach (range(0, $max) as $index) {
                if (!array_key_exists($index, $tuple)) {
                    $tuple[$index] = null;
                }
            }
            ksort($tuple);
        }

        return $tuple;
    }

    public function getTuple($input)

    {
        $output = [];
        foreach ($this->getProperties() as $index => $name) {
            if (array_key_exists($name, $input)) {
                $output[$index] = $this->encodeProperty($name, $input[$name]);
            }
        }

        return $output;
    }

    public function fromTuple($input)

    {
        $output = [];
        foreach ($this->getProperties() as $index => $name) {
            if (array_key_exists($index, $input)) {
                $output[$name] = $this->decodeProperty($name, $input[$index]);
            }
        }

        return $output;
    }

    public function encodeProperty($name, $value)
    {
        return $this->convention->encode($this->types[$name], $value);
    }

    public function decodeProperty($name, $value)
    {
        return $this->convention->decode($this->types[$name], $value);
    }
}


Push — master ( 6d4316...84d771 )

Type C

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

27 Methods

How to fix Duplicated Code Complexity

Duplicated Code

Complex Class

Available Fixes

Available Fixes

1			<?php
2
3			namespace Tarantool\Mapper\Schema;
4
5			use Tarantool\Mapper\Contracts;
6			use LogicException;
7
8			class Type implements Contracts\Type
9			{
10			private $convention;
11			private $properties = [];
12			private $indexes = [];
13			private $types = [];
14
15			private $manager;
16			private $space;
17			private $spaceId;
18			private $name;
19
20	35		public function __construct(Contracts\Manager $manager, $name, array $properties, array $types, array $indexes)
21			{
22	35		$this->manager = $manager;
23	35		$this->name = $name;
24	35		$this->convention = $manager->getMeta()->getConvention();
25	35		$this->spaceId = $manager->getSchema()->getSpaceId($name);
26
27	35		$this->properties = $properties;
28	35		$this->indexes = $indexes;
29	35		$this->types = $types;
30	35		}
31
32	35		public function getSpace()
33			{
34	35		if (!$this->space) {
35	35		$this->space = $this->getManager()->getClient()->getSpace($this->spaceId);
36			}
37
38	35		return $this->space;
39			}
40
41	35		public function getSpaceId()
42			{
43	35		return $this->spaceId;
44			}
45
46	35		public function getManager()
47			{
48	35		return $this->manager;
49			}
50
51	35		public function getName()
52			{
53	35		return $this->name;
54			}
55
56	35		public function addIndex($properties, array $arguments = null)
57			{
58	35		$properties = (array) $properties;
59	35		foreach ($properties as $property) {
60	35		if (!$this->hasProperty($property)) {
61	35		throw new LogicException("Unknown property $property for ".$this->name);
62			}
63			}
64
65	35		$schema = $this->manager->getSchema();
66
67	35		$indexName = implode('_', $properties);
68
69	35		if ($schema->hasIndex($this->getName(), $indexName)) {
70	1		throw new LogicException("Index $indexName already exists!");
71			}
72
73	35		if (!$arguments) {
74	35		$arguments = [];
75			}
76
77	35		if (!array_key_exists('parts', $arguments) \|\| !count($arguments['parts'])) {
78	35		$arguments['parts'] = [];
79	35		foreach ($properties as $property) {
80	35		$arguments['parts'][] = array_search($property, $this->properties) + 1;
81	35		$arguments['parts'][] = $this->convention->getTarantoolType($this->types[$property]);
82			}
83			}
84
85	35		$num = $schema->createIndex($this->getName(), $indexName, $arguments);
86	35		$this->indexes[$num] = $properties;
87
88	35		return $this;
89			}
90
91			/**
92			* @param $property name
93			*
94			* @return Type
95			*/
96	35		public function addProperty($name, $type = null)
97			{
98	35		if ($this->hasProperty($name)) {
99	1		throw new LogicException("Duplicate property $name");
100			}
101	35		if (!$type) {
102	35		$type = $this->manager->getMeta()->getConvention()->getType($name);
103			}
104	35		$this->types[$name] = $type;
105	35		$this->manager->create('property', [
106	35		'space' => $this->spaceId,
107	35		'index' => count($this->properties),
108	35		'name' => $name,
109	35		'type' => $this->types[$name],
110			]);
111
112	35		$this->properties[] = $name;
113
114	35		return $this;
115			}
116
117	35		public function hasProperty($name)
118			{
119	35		return in_array($name, $this->properties);
120			}
121
122	35		public function getProperties()
123			{
124	35		return $this->properties;
125			}
126
127	2		public function getPropertyType($property)
128			{
129	2		return $this->types[$property];
130			}
131
132	7		public function setPropertyType($property, $type)
133			{
134	7		if (is_array($property)) {
135	1		foreach ($property as $prop) {
136	1		$this->setPropertyType($prop, $type);
137			}
138
139	1		return $this;
140			}
141
142	7		$this->types[$property] = $type;
143
144			// update entity
145	7		$row = $this->getManager()->get('property')->findOne([
			0 ignored issues – show Bug introduced 2016-04-04 18:16 UTC by Report Bug Copy Issue Report The method `findOne` does only exist in `Tarantool\Mapper\Contracts\Repository`, but not in `Tarantool\Mapper\Contracts\Entity`. It seems like the method you are trying to call exists only in some of the possible types. Let’s take a look at an example: class A { public function foo() { } } class B extends A { public function bar() { } } /** * @param A\|B $x / function someFunction($x) { $x->foo(); // This call is fine as the method exists in A and B. $x->bar(); // This method only exists in B and might cause an error. } Available Fixes Add an additional type-check: /* * @param A\|B $x / function someFunction($x) { $x->foo(); if ($x instanceof B) { $x->bar(); } } Only allow a single type to be passed if the variable comes from a parameter: function someFunction(B $x) { /* ... */ } Loading history...
146	7		'space' => $this->spaceId,
147	7		'index' => array_search($property, $this->properties),
148			]);
149	7		$row->type = $type;
150	7		$this->getManager()->save($row);
151
152	7		return $this;
153			}
154
155	1		public function removeProperty($name)
156			{
157	1		if (!$this->hasProperty($name)) {
158			throw new LogicException("Unknown property $name");
159			}
160			$query = [
161	1		'space' => $this->spaceId,
162	1		'index' => array_search($name, $this->properties),
163			];
164	1		$property = $this->manager->get('property')->findOne($query);
			0 ignored issues – show Bug introduced 2016-04-17 17:00 UTC by Report Bug Copy Issue Report The method `findOne` does only exist in `Tarantool\Mapper\Contracts\Repository`, but not in `Tarantool\Mapper\Contracts\Entity`. It seems like the method you are trying to call exists only in some of the possible types. Let’s take a look at an example: class A { public function foo() { } } class B extends A { public function bar() { } } /** * @param A\|B $x / function someFunction($x) { $x->foo(); // This call is fine as the method exists in A and B. $x->bar(); // This method only exists in B and might cause an error. } Available Fixes Add an additional type-check: /* * @param A\|B $x / function someFunction($x) { $x->foo(); if ($x instanceof B) { $x->bar(); } } Only allow a single type to be passed if the variable comes from a parameter: function someFunction(B $x) { /* ... */ } Loading history...
165	1		$this->manager->remove($property);
166	1		unset($this->properties[$name]);
167	1		unset($this->types[$name]);
168	1		}
169
170	5		public function reference(Contracts\Type $foreign, $property = null)
171			{
172	5		if (!$property) {
173	4		$property = $foreign->getName();
174			}
175
176	5		$this->addProperty($property);
177	5		$this->setPropertyType($property, $foreign->getName());
178	5		$this->addIndex($property, ['unique' => false]);
179
180	5		return $this;
181			}
182
183	35		public function isReference($property)
184			{
185	35		return !$this->convention->isPrimitive($this->types[$property]);
186			}
187
188	4		public function getReferenceProperty(Contracts\Type $type)
189			{
190	4		$properties = [];
191	4		foreach ($this->types as $property => $propertyType) {
192	4		if ($type->getName() == $propertyType) {
193	4		$properties[] = $property;
194			}
195			}
196	4		if (!count($properties)) {
197	1		throw new LogicException('Type '.$this->getName().' is not related with '.$type->getName());
198			}
199	3		if (count($properties) > 1) {
200	1		throw new LogicException('Multiple type reference found');
201			}
202
203	2		return $properties[0];
204			}
205
206	1		public function getReferences()
207			{
208	1		$references = [];
209	1		$convention = $this->manager->getMeta()->getConvention();
210	1		foreach ($this->types as $property => $type) {
211	1		if (!$convention->isPrimitive($type)) {
212	1		$references[$property] = $type;
213			}
214			}
215
216	1		return $references;
217			}
218
219	35		public function getRequiredProperties()
220			{
221	35		if (!isset($this->requiredProperties)) {
222	35		$this->requiredProperties = ['id' => 1];
			0 ignored issues – show Bug introduced 2016-04-04 18:16 UTC by Report Bug Copy Issue Report The property `requiredProperties` does not seem to exist. Did you mean `properties`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
223	35		$indexList = $this->manager->getSchema()->listIndexes($this->getName());
224	35		foreach ($indexList as $name => $fields) {
225	35		foreach ($fields as $num) {
226	35		$this->requiredProperties[$this->properties[$num]] = true;
			0 ignored issues – show Bug introduced 2016-04-04 18:16 UTC by Report Bug Copy Issue Report The property `requiredProperties` does not seem to exist. Did you mean `properties`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
227			}
228			}
229	35		$this->requiredProperties = array_keys($this->requiredProperties);
			0 ignored issues – show Bug introduced 2016-04-04 18:16 UTC by Report Bug Copy Issue Report The property `requiredProperties` does not seem to exist. Did you mean `properties`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
230			}
231
232	35		return $this->requiredProperties;
			0 ignored issues – show Bug introduced 2016-04-04 18:16 UTC by Report Bug Copy Issue Report The property `requiredProperties` does not seem to exist. Did you mean `properties`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
233			}
234
235	1		public function getIndex($num)
236			{
237	1		return $this->indexes[$num];
238			}
239
240	1		public function dropIndex($num)
241			{
242	1		}
243
244	1		public function getIndexes()
245			{
246	1		return $this->indexes;
247			}
248
249	35		public function findIndex($query)
250			{
251	35		if (!count($query)) {
252	2		return 0;
253			}
254
255	35		sort($query);
256	35		foreach ($this->indexes as $name => $fields) {
257	35		if ($fields == $query) {
258	35		return $name;
259			}
260			}
261
262			// cast partial index
263	3		$casting = [];
264
265	3		foreach ($this->indexes as $name => $fields) {
266	3		if (!count(array_diff($query, $fields))) {
267	3		$casting[count(array_diff($fields, $query))] = $name;
268			}
269			}
270	3		ksort($casting);
271
272	3		return array_shift($casting);
273			}
274
275	35		public function getIndexTuple($index, $params)
276			{
277	35		$tuple = [];
278	35		foreach ($this->indexes[$index] as $property) {
279	35		if (array_key_exists($property, $params)) {
280	35		$tuple[array_search($property, $this->indexes[$index])] = $params[$property];
281			}
282			}
283
284	35		return $tuple;
285			}
286
287	35		public function getCompleteTuple($input)
288			{
289	35		$tuple = $this->getTuple($input);
290	35		$required = $this->getRequiredProperties();
291
292	35		foreach ($this->getProperties() as $index => $field) {
293	35		if (in_array($field, $required) && !array_key_exists($index, $tuple)) {
294	1		if ($this->isReference($field)) {
295	1		$tuple[$index] = 0;
296			} else {
297	35		$tuple[$index] = '';
298			}
299			}
300			}
301
302			// normalize tuple
303	35		if (array_values($tuple) != $tuple) {
304			// index was skipped
305	3		$max = max(array_keys($tuple));
306	3		foreach (range(0, $max) as $index) {
307	3		if (!array_key_exists($index, $tuple)) {
308	3		$tuple[$index] = null;
309			}
310			}
311	3		ksort($tuple);
312			}
313
314	35		return $tuple;
315			}
316
317	35	View Code Duplication	public function getTuple($input)
			0 ignored issues – show Duplication introduced 2016-04-10 11:30 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...
318			{
319	35		$output = [];
320	35		foreach ($this->getProperties() as $index => $name) {
321	35		if (array_key_exists($name, $input)) {
322	35		$output[$index] = $this->encodeProperty($name, $input[$name]);
323			}
324			}
325
326	35		return $output;
327			}
328
329	35	View Code Duplication	public function fromTuple($input)
			0 ignored issues – show Duplication introduced 2016-04-10 11:30 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...
330			{
331	35		$output = [];
332	35		foreach ($this->getProperties() as $index => $name) {
333	35		if (array_key_exists($index, $input)) {
334	35		$output[$name] = $this->decodeProperty($name, $input[$index]);
335			}
336			}
337
338	35		return $output;
339			}
340
341	35		public function encodeProperty($name, $value)
342			{
343	35		return $this->convention->encode($this->types[$name], $value);
344			}
345
346	35		public function decodeProperty($name, $value)
347			{
348	35		return $this->convention->decode($this->types[$name], $value);
349			}
350			}
351

tarantool-php / mapper

Push — master ( 6d4316...84d771 )

Type C

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

27 Methods

How to fix Duplicated Code Complexity

Duplicated Code

Complex Class

Available Fixes

Available Fixes

Duplication Side-by-Side

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