Processor::createDeleteMutation() - Code Metrics - Inspection of "Issue #2: indexes broken on deletion fixed" - remorhaz/php-json-pointer - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 531553...9683f3 )

by Edward

created 2019-11-18 11:52 UTC

Processor::createDeleteMutation() A

↳ Parent: Processor

Complexity

Conditions	5
Paths	4

Size

Total Lines	15
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	5

Importance

Changes

Metric	Value
cc	5
eloc	9
c	0
b	0
f	0
nc	4
nop	1
dl	0
loc	15
ccs	10
cts	10
cp	1
crap	5
rs	9.6111

<?php
declare(strict_types=1);

namespace Remorhaz\JSON\Pointer\Processor;

use Remorhaz\JSON\Data\Export\EventDecoder;
use Remorhaz\JSON\Data\Export\ValueDecoder;
use Remorhaz\JSON\Data\Export\ValueDecoderInterface;
use Remorhaz\JSON\Data\Export\ValueEncoder;
use Remorhaz\JSON\Data\Export\ValueEncoderInterface;
use Remorhaz\JSON\Data\Value\ArrayValueInterface;
use Remorhaz\JSON\Data\Value\NodeValueInterface;
use Remorhaz\JSON\Data\Value\ObjectValueInterface;
use Remorhaz\JSON\Data\Walker\MutationInterface;
use Remorhaz\JSON\Data\Walker\ValueWalker;
use Remorhaz\JSON\Pointer\Locator\IndexReferenceInterface;
use Remorhaz\JSON\Pointer\Locator\NextIndexReferenceInterface;
use Remorhaz\JSON\Pointer\Locator\ReferenceInterface;
use Remorhaz\JSON\Pointer\Processor\Mutator\AppendElementMutation;
use Remorhaz\JSON\Pointer\Processor\Mutator\AppendPropertyMutation;
use Remorhaz\JSON\Pointer\Processor\Mutator\DeleteElementMutation;
use Remorhaz\JSON\Pointer\Processor\Mutator\DeletePropertyMutation;
use Remorhaz\JSON\Pointer\Processor\Mutator\InsertElementMutation;
use Remorhaz\JSON\Pointer\Processor\Mutator\Mutator;
use Remorhaz\JSON\Pointer\Processor\Mutator\MutatorInterface;
use Remorhaz\JSON\Pointer\Processor\Mutator\ReplaceMutation;
use Remorhaz\JSON\Pointer\Processor\Result\ExistingResult;
use Remorhaz\JSON\Pointer\Processor\Result\NonExistingResult;
use Remorhaz\JSON\Pointer\Processor\Result\ResultInterface;
use Remorhaz\JSON\Pointer\Query\QueryInterface;
use Remorhaz\JSON\Pointer\Query\QueryResultInterface;

final class Processor implements ProcessorInterface
{

    private $encoder;

    private $decoder;

    private $mutator;

    public static function create(): ProcessorInterface
    {
        $decoder = new ValueDecoder;

        return new self(
            new ValueEncoder($decoder),
            $decoder,
            new Mutator(
                new ValueWalker(),
                new EventDecoder(),
            ),
        );
    }

    public function __construct(
        ValueEncoderInterface $encoder,
        ValueDecoderInterface $decoder,
        MutatorInterface $mutator
    ) {
        $this->encoder = $encoder;
        $this->decoder = $decoder;
        $this->mutator = $mutator;
    }

    public function select(QueryInterface $query, NodeValueInterface $rootNode): ResultInterface
    {
        $queryResult = $query($rootNode);

        return $queryResult->hasSelection()
            ? new ExistingResult($this->encoder, $this->decoder, $queryResult->getSelection())
            : new NonExistingResult($query->getSource());
    }

    public function delete(QueryInterface $query, NodeValueInterface $rootNode): ResultInterface
    {
        $mutation = $this->createDeleteMutation($query($rootNode));

        return isset($mutation)
            ? $this->getMutationResult($query, $rootNode, $mutation)
            : new NonExistingResult($query->getSource());
    }

    private function createDeleteMutation(QueryResultInterface $queryResult): ?MutationInterface
    {
        if (!$queryResult->hasSelection() || !$queryResult->hasParent()) {
            return null;
        }
        $selection = $queryResult->getSelection();
        $parent = $queryResult->getParent();
        if ($parent instanceof ArrayValueInterface) {
            return new DeleteElementMutation($parent->getPath(), $selection->getPath());
        }
        if ($parent instanceof ObjectValueInterface) {
            return new DeletePropertyMutation($selection->getPath());
        }

        return null;
    }

    private function getMutationResult(
        QueryInterface $query,
        NodeValueInterface $rootNode,
        MutationInterface $mutation
    ): ResultInterface {
        $mutatedValue = $this
            ->mutator
            ->mutate($rootNode, $mutation);

        return null === $mutatedValue
            ? new NonExistingResult($query->getSource())
            : new ExistingResult($this->encoder, $this->decoder, $mutatedValue);
    }

    public function replace(
        QueryInterface $query,
        NodeValueInterface $rootNode,
        NodeValueInterface $value
    ): ResultInterface {
        $queryResult = $query($rootNode);

        return $queryResult->hasSelection()
            ? $this->getMutationResult(
                $query,
                $rootNode,
                new ReplaceMutation($value, $queryResult->getSelection()->getPath())
            )
            : new NonExistingResult($query->getSource());
    }

    public function add(QueryInterface $query, NodeValueInterface $rootNode, NodeValueInterface $value): ResultInterface
    {
        $mutation = $this->createAddMutation($query($rootNode), $value);

        return isset($mutation)
            ? $this->getMutationResult($query, $rootNode, $mutation)
            : new NonExistingResult($query->getSource());
    }

    private function createAddMutation(QueryResultInterface $queryResult, NodeValueInterface $value): ?MutationInterface
    {
        if (!$queryResult->hasParent() || !$queryResult->hasLastReference()) {
            return null;
        }
        $parent = $queryResult->getParent();
        $reference = $queryResult->getLastReference();
        if ($parent instanceof ObjectValueInterface) {
            return $queryResult->hasSelection()
                ? new ReplaceMutation($value, $queryResult->getSelection()->getPath())
                : new AppendPropertyMutation($value, $parent->getPath(), $reference->getPropertyName());
        }
        if ($parent instanceof ArrayValueInterface) {
            return $queryResult->hasSelection()
                ? $this->createInsertElementMutation($reference, $parent, $value)
                : $this->createAppendElementMutation($reference, $parent, $value);
        }

        return null;
    }

    private function createInsertElementMutation(
        ReferenceInterface $reference,
        NodeValueInterface $parent,
        NodeValueInterface $value
    ): ?MutationInterface {
        return $reference instanceof IndexReferenceInterface
            ? new InsertElementMutation($value, $parent->getPath(), $reference->getElementIndex())
            : null;
    }

    private function createAppendElementMutation(
        ReferenceInterface $reference,
        NodeValueInterface $parent,
        NodeValueInterface $value
    ): ?MutationInterface {
        switch (true) {
            case $reference instanceof NextIndexReferenceInterface:
                $elementIndex = null;
                break;

            case $reference instanceof IndexReferenceInterface:
                $elementIndex = $reference->getElementIndex();
                break;

            default:
                return null;
        }

        return new AppendElementMutation($value, $parent->getPath(), $elementIndex);
    }
}


1		<?php
2		declare(strict_types=1);
3
4		namespace Remorhaz\JSON\Pointer\Processor;
5
6		use Remorhaz\JSON\Data\Export\EventDecoder;
7		use Remorhaz\JSON\Data\Export\ValueDecoder;
8		use Remorhaz\JSON\Data\Export\ValueDecoderInterface;
9		use Remorhaz\JSON\Data\Export\ValueEncoder;
10		use Remorhaz\JSON\Data\Export\ValueEncoderInterface;
11		use Remorhaz\JSON\Data\Value\ArrayValueInterface;
12		use Remorhaz\JSON\Data\Value\NodeValueInterface;
13		use Remorhaz\JSON\Data\Value\ObjectValueInterface;
14		use Remorhaz\JSON\Data\Walker\MutationInterface;
15		use Remorhaz\JSON\Data\Walker\ValueWalker;
16		use Remorhaz\JSON\Pointer\Locator\IndexReferenceInterface;
17		use Remorhaz\JSON\Pointer\Locator\NextIndexReferenceInterface;
18		use Remorhaz\JSON\Pointer\Locator\ReferenceInterface;
19		use Remorhaz\JSON\Pointer\Processor\Mutator\AppendElementMutation;
20		use Remorhaz\JSON\Pointer\Processor\Mutator\AppendPropertyMutation;
21		use Remorhaz\JSON\Pointer\Processor\Mutator\DeleteElementMutation;
22		use Remorhaz\JSON\Pointer\Processor\Mutator\DeletePropertyMutation;
23		use Remorhaz\JSON\Pointer\Processor\Mutator\InsertElementMutation;
24		use Remorhaz\JSON\Pointer\Processor\Mutator\Mutator;
25		use Remorhaz\JSON\Pointer\Processor\Mutator\MutatorInterface;
26		use Remorhaz\JSON\Pointer\Processor\Mutator\ReplaceMutation;
27		use Remorhaz\JSON\Pointer\Processor\Result\ExistingResult;
28		use Remorhaz\JSON\Pointer\Processor\Result\NonExistingResult;
29		use Remorhaz\JSON\Pointer\Processor\Result\ResultInterface;
30		use Remorhaz\JSON\Pointer\Query\QueryInterface;
31		use Remorhaz\JSON\Pointer\Query\QueryResultInterface;
32
33		final class Processor implements ProcessorInterface
34		{
35
36		private $encoder;
37
38		private $decoder;
39
40		private $mutator;
41
42	16	public static function create(): ProcessorInterface
43		{
44	16	$decoder = new ValueDecoder;
45
46	16	return new self(
47	16	new ValueEncoder($decoder),
48		$decoder,
49	16	new Mutator(
50	16	new ValueWalker(),
51	16	new EventDecoder(),
52		),
53		);
54		}
55
56	41	public function __construct(
57		ValueEncoderInterface $encoder,
58		ValueDecoderInterface $decoder,
59		MutatorInterface $mutator
60		) {
61	41	$this->encoder = $encoder;
62	41	$this->decoder = $decoder;
63	41	$this->mutator = $mutator;
64	41	}
65
66	5	public function select(QueryInterface $query, NodeValueInterface $rootNode): ResultInterface
67		{
68	5	$queryResult = $query($rootNode);
69
70	5	return $queryResult->hasSelection()
71	3	? new ExistingResult($this->encoder, $this->decoder, $queryResult->getSelection())
72	5	: new NonExistingResult($query->getSource());
73		}
74
75	11	public function delete(QueryInterface $query, NodeValueInterface $rootNode): ResultInterface
76		{
77	11	$mutation = $this->createDeleteMutation($query($rootNode));
78
79	11	return isset($mutation)
80	6	? $this->getMutationResult($query, $rootNode, $mutation)
81	11	: new NonExistingResult($query->getSource());
82		}
83
84	11	private function createDeleteMutation(QueryResultInterface $queryResult): ?MutationInterface
85		{
86	11	if (!$queryResult->hasSelection() \|\| !$queryResult->hasParent()) {
87	3	return null;
88		}
89	8	$selection = $queryResult->getSelection();
90	8	$parent = $queryResult->getParent();
91	8	if ($parent instanceof ArrayValueInterface) {
92	4	return new DeleteElementMutation($parent->getPath(), $selection->getPath());
93		}
94	4	if ($parent instanceof ObjectValueInterface) {
95	2	return new DeletePropertyMutation($selection->getPath());
96		}
97
98	2	return null;
99		}
100
101	20	private function getMutationResult(
102		QueryInterface $query,
103		NodeValueInterface $rootNode,
104		MutationInterface $mutation
105		): ResultInterface {
106		$mutatedValue = $this
107	20	->mutator
108	20	->mutate($rootNode, $mutation);
109
110	20	return null === $mutatedValue
111	10	? new NonExistingResult($query->getSource())
112	20	: new ExistingResult($this->encoder, $this->decoder, $mutatedValue);
113		}
114
115	9	public function replace(
116		QueryInterface $query,
117		NodeValueInterface $rootNode,
118		NodeValueInterface $value
119		): ResultInterface {
120	9	$queryResult = $query($rootNode);
121
122	9	return $queryResult->hasSelection()
123	4	? $this->getMutationResult(
124	4	$query,
125	4	$rootNode,
126	4	new ReplaceMutation($value, $queryResult->getSelection()->getPath())
127		)
128	9	: new NonExistingResult($query->getSource());
129		}
130
131	15	public function add(QueryInterface $query, NodeValueInterface $rootNode, NodeValueInterface $value): ResultInterface
132		{
133	15	$mutation = $this->createAddMutation($query($rootNode), $value);
134
135	15	return isset($mutation)
136	10	? $this->getMutationResult($query, $rootNode, $mutation)
137	15	: new NonExistingResult($query->getSource());
138		}
139
140	15	private function createAddMutation(QueryResultInterface $queryResult, NodeValueInterface $value): ?MutationInterface
141		{
142	15	if (!$queryResult->hasParent() \|\| !$queryResult->hasLastReference()) {
143	1	return null;
144		}
145	14	$parent = $queryResult->getParent();
146	14	$reference = $queryResult->getLastReference();
147	14	if ($parent instanceof ObjectValueInterface) {
148	4	return $queryResult->hasSelection()
149	2	? new ReplaceMutation($value, $queryResult->getSelection()->getPath())
150	4	: new AppendPropertyMutation($value, $parent->getPath(), $reference->getPropertyName());
151		}
152	10	if ($parent instanceof ArrayValueInterface) {
153	9	return $queryResult->hasSelection()
154	4	? $this->createInsertElementMutation($reference, $parent, $value)
155	9	: $this->createAppendElementMutation($reference, $parent, $value);
156		}
157
158	1	return null;
159		}
160
161	4	private function createInsertElementMutation(
162		ReferenceInterface $reference,
163		NodeValueInterface $parent,
164		NodeValueInterface $value
165		): ?MutationInterface {
166	4	return $reference instanceof IndexReferenceInterface
167	2	? new InsertElementMutation($value, $parent->getPath(), $reference->getElementIndex())
168	4	: null;
169		}
170
171	5	private function createAppendElementMutation(
172		ReferenceInterface $reference,
173		NodeValueInterface $parent,
174		NodeValueInterface $value
175		): ?MutationInterface {
176		switch (true) {
177	5	case $reference instanceof NextIndexReferenceInterface:
178	2	$elementIndex = null;
179	2	break;
180
181	3	case $reference instanceof IndexReferenceInterface:
182	2	$elementIndex = $reference->getElementIndex();
183	2	break;
184
185		default:
186	1	return null;
187		}
188
189	4	return new AppendElementMutation($value, $parent->getPath(), $elementIndex);
190		}
191		}
192

remorhaz / php-json-pointer

Push — master ( 531553...9683f3 )

Processor::createDeleteMutation() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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