MissingObjectTripleNodeSimplifier::__construct() - Code Metrics - Inspection of "Ignore parse exceptions" - ProjetPP/PPP-Wikidata - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7880aa...3f359c )

by Thomas

created 2016-07-08 12:36 UTC

MissingObjectTripleNodeSimplifier::__construct() A

↳ Parent: MissingObjectTripleNodeSimplifier

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1.0156

Importance

Changes	4
Bugs	0	Features	1

Metric	Value
c	4
b	0
f	1
dl	0
loc	4
ccs	3
cts	4
cp	0.75
rs	10
cc	1
eloc	3
nc	1
nop	2
crap	1.0156

<?php

namespace PPP\Wikidata\TreeSimplifier;

use InvalidArgumentException;
use PPP\DataModel\AbstractNode;
use PPP\DataModel\MissingNode;
use PPP\DataModel\ResourceListNode;
use PPP\DataModel\TripleNode;
use PPP\Module\TreeSimplifier\NodeSimplifier;
use PPP\Wikidata\ValueParsers\ResourceListNodeParser;
use PPP\Wikidata\WikibaseResourceNode;

/**
 * Simplifies a triple node when the object is missing.
 *
 * @licence GPLv2+
 * @author Thomas Pellissier Tanon
 */
class MissingObjectTripleNodeSimplifier implements NodeSimplifier {

	/**
	 * @var ResourceListNodeParser
	 */
	private $resourceListNodeParser;

	/**
	 * @var ResourceListForEntityProperty
	 */
	private $resourceListForEntityProperty;

	/**
	 * @param ResourceListNodeParser $resourceListNodeParser
	 * @param ResourceListForEntityProperty $resourceListForEntityProperty
	 */
	public function __construct(ResourceListNodeParser $resourceListNodeParser, ResourceListForEntityProperty $resourceListForEntityProperty) {
		$this->resourceListNodeParser = $resourceListNodeParser;
		$this->resourceListForEntityProperty = $resourceListForEntityProperty;
	}

	/**
	 * @see NodeSimplifier::isSimplifierFor
	 */
	public function isSimplifierFor(AbstractNode $node) {
		return $node instanceof TripleNode &&
			$node->getSubject() instanceof ResourceListNode &&
			$node->getPredicate() instanceof ResourceListNode &&
			$node->getObject() instanceof MissingNode;
	}

	/**
	 * @see NodeSimplifier::doSimplification
	 */
	public function simplify(AbstractNode $node) {
		if(!$this->isSimplifierFor($node)) {
			throw new InvalidArgumentException('MissingObjectTripleNodeSimplifier can only simplify TripleNode with a missing object');
		}

		return $this->doSimplification($node);

	}

	private function doSimplification(TripleNode $node) {
		$subjectNodes = $this->resourceListNodeParser->parse($node->getSubject(), 'wikibase-item');

		$propertyNodes = $this->resourceListNodeParser->parse($node->getPredicate(), 'wikibase-property');

		$results = array();

		foreach($subjectNodes as $subject) {
			foreach($propertyNodes as $predicate) {
				$results[] = $this->getNodesForObject($subject, $predicate);
			}
		}

		$node = new ResourceListNode($results);
		return $node;
	}

	protected function getNodesForObject(WikibaseResourceNode $subject, WikibaseResourceNode $predicate) {
		return $this->resourceListForEntityProperty->getForEntityProperty(
			$subject->getDataValue()->getEntityId(),
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			$predicate->getDataValue()->getEntityId()
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
		);
	}
}


Push — master ( 7880aa...3f359c )

MissingObjectTripleNodeSimplifier::__construct() A

Complexity

Size

Duplication

Code Coverage

Importance

Available Fixes

Available Fixes

1		<?php
2
3		namespace PPP\Wikidata\TreeSimplifier;
4
5		use InvalidArgumentException;
6		use PPP\DataModel\AbstractNode;
7		use PPP\DataModel\MissingNode;
8		use PPP\DataModel\ResourceListNode;
9		use PPP\DataModel\TripleNode;
10		use PPP\Module\TreeSimplifier\NodeSimplifier;
11		use PPP\Wikidata\ValueParsers\ResourceListNodeParser;
12		use PPP\Wikidata\WikibaseResourceNode;
13
14		/**
15		* Simplifies a triple node when the object is missing.
16		*
17		* @licence GPLv2+
18		* @author Thomas Pellissier Tanon
19		*/
20		class MissingObjectTripleNodeSimplifier implements NodeSimplifier {
21
22		/**
23		* @var ResourceListNodeParser
24		*/
25		private $resourceListNodeParser;
26
27		/**
28		* @var ResourceListForEntityProperty
29		*/
30		private $resourceListForEntityProperty;
31
32		/**
33		* @param ResourceListNodeParser $resourceListNodeParser
34		* @param ResourceListForEntityProperty $resourceListForEntityProperty
35		*/
36	13	public function __construct(ResourceListNodeParser $resourceListNodeParser, ResourceListForEntityProperty $resourceListForEntityProperty) {
37	13	$this->resourceListNodeParser = $resourceListNodeParser;
38	13	$this->resourceListForEntityProperty = $resourceListForEntityProperty;
39		}
40
41		/**
42		* @see NodeSimplifier::isSimplifierFor
43		*/
44	12	public function isSimplifierFor(AbstractNode $node) {
45	12	return $node instanceof TripleNode &&
46		$node->getSubject() instanceof ResourceListNode &&
47		$node->getPredicate() instanceof ResourceListNode &&
48	6	$node->getObject() instanceof MissingNode;
49	12	}
50
51		/**
52		* @see NodeSimplifier::doSimplification
53		*/
54	7	public function simplify(AbstractNode $node) {
55		if(!$this->isSimplifierFor($node)) {
56		throw new InvalidArgumentException('MissingObjectTripleNodeSimplifier can only simplify TripleNode with a missing object');
57		}
58
59		return $this->doSimplification($node);
		0 ignored issues – show Compatibility introduced 2016-01-11 15:51 UTC by Report Bug Copy Issue Report `$node` of type `object<PPP\DataModel\AbstractNode>` is not a sub-type of `object<PPP\DataModel\TripleNode>`. It seems like you assume a child class of the class `PPP\DataModel\AbstractNode` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
60	7	}
61
62	4	private function doSimplification(TripleNode $node) {
63		$subjectNodes = $this->resourceListNodeParser->parse($node->getSubject(), 'wikibase-item');
		0 ignored issues – show Compatibility introduced 2016-01-11 15:51 UTC by Report Bug Copy Issue Report `$node->getSubject()` of type `object<PPP\DataModel\AbstractNode>` is not a sub-type of `object<PPP\DataModel\ResourceListNode>`. It seems like you assume a child class of the class `PPP\DataModel\AbstractNode` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
64		$propertyNodes = $this->resourceListNodeParser->parse($node->getPredicate(), 'wikibase-property');
		0 ignored issues – show Compatibility introduced 2016-01-11 15:51 UTC by Report Bug Copy Issue Report `$node->getPredicate()` of type `object<PPP\DataModel\AbstractNode>` is not a sub-type of `object<PPP\DataModel\ResourceListNode>`. It seems like you assume a child class of the class `PPP\DataModel\AbstractNode` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
65	4	$results = array();
66
67		foreach($subjectNodes as $subject) {
68		foreach($propertyNodes as $predicate) {
69		$results[] = $this->getNodesForObject($subject, $predicate);
70		}
71		}
72
73		$node = new ResourceListNode($results);
74	4	return $node;
75	4	}
76
77	4	protected function getNodesForObject(WikibaseResourceNode $subject, WikibaseResourceNode $predicate) {
78	4	return $this->resourceListForEntityProperty->getForEntityProperty(
79		$subject->getDataValue()->getEntityId(),
		0 ignored issues – show Bug introduced 2016-01-11 15:51 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `DataValues\DataValue` as the method `getEntityId()` does only exist in the following implementations of said interface: `Wikibase\DataModel\Entity\EntityIdValue`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
80		$predicate->getDataValue()->getEntityId()
		0 ignored issues – show Bug introduced 2016-01-11 15:51 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `DataValues\DataValue` as the method `getEntityId()` does only exist in the following implementations of said interface: `Wikibase\DataModel\Entity\EntityIdValue`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
81		);
82	4	}
83		}
84

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MissingObjectTripleNodeSimplifier::__construct() A

Complexity

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Importance

Available Fixes

Available Fixes

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