Fetcher::fetchDeepElements() - Code Metrics - Inspection of "Removed filter object and value list builders impl..." - remorhaz/php-json-path - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0c0824...37a545 )

by Edward

created 2019-07-28 19:10 UTC

Fetcher::fetchDeepElements() A

↳ Parent: Fetcher

Complexity

Conditions	3
Paths	3

Size

Total Lines	14
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes

Metric	Value
cc	3
eloc	8
c	0
b	0
f	0
nc	3
nop	2
dl	0
loc	14
ccs	0
cts	9
cp	0
crap	12
rs	10

<?php
declare(strict_types=1);

namespace Remorhaz\JSON\Path\Runtime;

use function array_push;
use Iterator;
use function max;
use Remorhaz\JSON\Data\Value\ArrayValueInterface;
use Remorhaz\JSON\Path\Value\EvaluatedValueInterface;
use Remorhaz\JSON\Path\Value\EvaluatedValueListInterface;
use Remorhaz\JSON\Data\Value\NodeValueInterface;
use Remorhaz\JSON\Path\Value\NodeValueListBuilder;
use Remorhaz\JSON\Path\Value\NodeValueListInterface;
use Remorhaz\JSON\Data\Value\ObjectValueInterface;
use Remorhaz\JSON\Data\Value\ScalarValueInterface;
use Remorhaz\JSON\Data\Iterator\ValueIteratorFactory;
use Remorhaz\JSON\Path\Value\ValueListInterface;

final class Fetcher
{

    private $valueIteratorFactory;

    public function __construct(ValueIteratorFactory $valueIteratorFactory)
    {
        $this->valueIteratorFactory = $valueIteratorFactory;
    }

    /**
     * @param NodeValueListInterface $source
     * @param Matcher\ChildMatcherInterface ...$matcherList
     * @return NodeValueListInterface
     */
    public function fetchChildren(
        NodeValueListInterface $source,
        Matcher\ChildMatcherInterface ...$matcherList
    ): NodeValueListInterface {
        $nodesBuilder = new NodeValueListBuilder;
        foreach ($source->getValues() as $sourceIndex => $sourceValue) {
            $matcher = $matcherList[$sourceIndex];
            $children = $this->fetchValueChildren($matcher, $sourceValue);
            $outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
            foreach ($children as $child) {
                $nodesBuilder->addValue($child, $outerIndex);
            }
        }

        return $nodesBuilder->build();
    }

    public function fetchDeepChildren(
        Matcher\ChildMatcherInterface $matcher,
        NodeValueListInterface $source
    ): NodeValueListInterface {
        $nodesBuilder = new NodeValueListBuilder;
        foreach ($source->getValues() as $sourceIndex => $sourceValue) {
            $children = $this->fetchValueDeepChildren($matcher, $sourceValue);
            $outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
            foreach ($children as $child) {
                $nodesBuilder->addValue($child, $outerIndex);
            }
        }

        return $nodesBuilder->build();
    }

    /**
     * @param Matcher\ChildMatcherInterface $matcher
     * @param NodeValueInterface $value
     * @return NodeValueInterface[]
     */
    private function fetchValueChildren(
        Matcher\ChildMatcherInterface $matcher,
        NodeValueInterface $value
    ): array {
        if ($value instanceof ScalarValueInterface) {
            return [];
        }

        if ($value instanceof ArrayValueInterface) {
            return $this->fetchElements($value->createIterator(), $matcher);
        }

        if ($value instanceof ObjectValueInterface) {
            return $this->fetchProperties($value->createIterator(), $matcher);
        }

        throw new Exception\UnexpectedNodeValueFetchedException($value);
    }

    private function fetchValueDeepChildren(
        Matcher\ChildMatcherInterface $matcher,
        NodeValueInterface $value
    ): array {
        if ($value instanceof ScalarValueInterface) {
            return [];
        }

        if ($value instanceof ArrayValueInterface) {
            return $this->fetchDeepElements($value->createIterator(), $matcher);
        }

        if ($value instanceof ObjectValueInterface) {
            return $this->fetchDeepProperties($value->createIterator(), $matcher);
        }

        throw new Exception\UnexpectedNodeValueFetchedException($value);
    }

    private function fetchDeepElements(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
    {
        $results = [];
        foreach ($this->valueIteratorFactory->createArrayIterator($iterator) as $index => $element) {
            if ($matcher->match($index)) {
                $results[] = $element;
            }
            array_push(
                $results,
                ...$this->fetchValueDeepChildren($matcher, $element)
            );
        }

        return $results;
    }

    private function fetchDeepProperties(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
    {
        $results = [];
        foreach ($this->valueIteratorFactory->createObjectIterator($iterator) as $name => $property) {
            if ($matcher->match($name)) {
                $results[] = $property;
            }
            array_push(
                $results,
                ...$this->fetchValueDeepChildren($matcher, $property)
            );
        }

        return $results;
    }

    public function fetchFilterContext(NodeValueListInterface $source): NodeValueListInterface
    {
        $nodesBuilder = new NodeValueListBuilder;
        foreach ($source->getValues() as $sourceIndex => $sourceValue) {
            if (!$sourceValue instanceof NodeValueInterface) {
                throw new Exception\InvalidContextValueException($sourceValue);
            }
            $outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
            $children = $sourceValue instanceof ArrayValueInterface
                ? $this->fetchValueChildren(new Matcher\AnyChildMatcher, $sourceValue)
                : [$sourceValue];
            foreach ($children as $child) {
                $nodesBuilder->addValue($child, $outerIndex);
            }
        }

        return $nodesBuilder->build();
    }

    public function fetchFilteredValues(
        EvaluatedValueListInterface $results,
        NodeValueListInterface $values
    ): NodeValueListInterface {
        if (!$values->getIndexMap()->equals($results->getIndexMap())) {
            throw new Exception\IndexMapMatchFailedException($values, $results);
        }
        $nodesBuilder = new NodeValueListBuilder;
        foreach ($values->getValues() as $index => $value) {
            $evaluatedValue = $results->getValue($index);
            if (!$evaluatedValue instanceof EvaluatedValueInterface) {
                throw new Exception\InvalidFilterValueException($evaluatedValue);
            }
            if (!$evaluatedValue->getData()) {
                continue;
            }
            $nodesBuilder->addValue(
                $value,
                $values->getIndexMap()->getOuterIndex($index)
            );
        }

        return $nodesBuilder->build();
    }

    private function fetchElements(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
    {
        $results = [];
        foreach ($this->valueIteratorFactory->createArrayIterator($iterator) as $index => $element) {
            if ($matcher->match($index)) {
                $results[] = $element;
            }
        }

        return $results;
    }

    private function fetchProperties(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
    {
        $results = [];
        foreach ($this->valueIteratorFactory->createObjectIterator($iterator) as $name => $property) {
            if ($matcher->match($name)) {
                $results[] = $property;
            }
        }

        return $results;
    }

    /**
     * @param ValueListInterface $valueList
     * @return int[][]
     */
    public function fetchIndice(ValueListInterface $valueList): array
    {
        $result = [];
        foreach ($valueList->getValues() as $valueIndex => $value) {
            if (!$value instanceof ArrayValueInterface) {
                $result[$valueIndex] = [];
                continue;
            }

            $indice = [];
            $elementIterator = $this->valueIteratorFactory->createArrayIterator($value->createIterator());
            foreach ($elementIterator as $index => $element) {
                $indice[] = $index;
            }
            $result[$valueIndex] = $indice;
        }

        return $result;
    }

    /**
     * @param ValueListInterface $valueList
     * @param int|null $start
     * @param int|null $end
     * @param int|null $step
     * @return int[][]
     */
    public function fetchSliceIndice(ValueListInterface $valueList, ?int $start, ?int $end, ?int $step): array
    {
        $fullIndexList = $this->fetchIndice($valueList);

        $result = [];
        foreach ($fullIndexList as $valueIndex => $allIndice) {
            if (!isset($step)) {
                $step = 1;
            }
            $isReverse = $step < 0;
            $indexCount = count($allIndice);
            if (!isset($start)) {
                $start = $isReverse ? -1 : 0;
            }
            if ($start < 0) {
                $start = max($start + $indexCount, 0);
            }
            if (!isset($end)) {
                $end = $isReverse ? -$indexCount - 1 : $indexCount;
            }
            if ($end > $indexCount) {
                $end = $indexCount;
            }
            if ($end < 0) {
                $end = max($end + $indexCount, $isReverse ? -1 : 0);
            }
            $indice = [];
            $index = $start;
            while ($isReverse ? $index > $end : $index < $end) {
                $indice[] = $allIndice[$index];
                $index += $step;
            }
            $result[] = $indice;
        }

        return $result;
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace Remorhaz\JSON\Path\Runtime;
5
6			use function array_push;
7			use Iterator;
8			use function max;
9			use Remorhaz\JSON\Data\Value\ArrayValueInterface;
10			use Remorhaz\JSON\Path\Value\EvaluatedValueInterface;
11			use Remorhaz\JSON\Path\Value\EvaluatedValueListInterface;
12			use Remorhaz\JSON\Data\Value\NodeValueInterface;
13			use Remorhaz\JSON\Path\Value\NodeValueListBuilder;
14			use Remorhaz\JSON\Path\Value\NodeValueListInterface;
15			use Remorhaz\JSON\Data\Value\ObjectValueInterface;
16			use Remorhaz\JSON\Data\Value\ScalarValueInterface;
17			use Remorhaz\JSON\Data\Iterator\ValueIteratorFactory;
18			use Remorhaz\JSON\Path\Value\ValueListInterface;
19
20			final class Fetcher
21			{
22
23			private $valueIteratorFactory;
24
25			public function __construct(ValueIteratorFactory $valueIteratorFactory)
26			{
27			$this->valueIteratorFactory = $valueIteratorFactory;
28			}
29
30			/**
31			* @param NodeValueListInterface $source
32			* @param Matcher\ChildMatcherInterface ...$matcherList
33			* @return NodeValueListInterface
34			*/
35			public function fetchChildren(
36			NodeValueListInterface $source,
37			Matcher\ChildMatcherInterface ...$matcherList
38			): NodeValueListInterface {
39			$nodesBuilder = new NodeValueListBuilder;
40			foreach ($source->getValues() as $sourceIndex => $sourceValue) {
41			$matcher = $matcherList[$sourceIndex];
42			$children = $this->fetchValueChildren($matcher, $sourceValue);
43			$outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
44			foreach ($children as $child) {
45			$nodesBuilder->addValue($child, $outerIndex);
46			}
47			}
48
49			return $nodesBuilder->build();
50			}
51
52			public function fetchDeepChildren(
53			Matcher\ChildMatcherInterface $matcher,
54			NodeValueListInterface $source
55			): NodeValueListInterface {
56			$nodesBuilder = new NodeValueListBuilder;
57			foreach ($source->getValues() as $sourceIndex => $sourceValue) {
58			$children = $this->fetchValueDeepChildren($matcher, $sourceValue);
59			$outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
60			foreach ($children as $child) {
61			$nodesBuilder->addValue($child, $outerIndex);
62			}
63			}
64
65			return $nodesBuilder->build();
66			}
67
68			/**
69			* @param Matcher\ChildMatcherInterface $matcher
70			* @param NodeValueInterface $value
71			* @return NodeValueInterface[]
72			*/
73			private function fetchValueChildren(
74			Matcher\ChildMatcherInterface $matcher,
75			NodeValueInterface $value
76			): array {
77			if ($value instanceof ScalarValueInterface) {
78			return [];
79			}
80
81			if ($value instanceof ArrayValueInterface) {
82			return $this->fetchElements($value->createIterator(), $matcher);
83			}
84
85			if ($value instanceof ObjectValueInterface) {
86			return $this->fetchProperties($value->createIterator(), $matcher);
87			}
88
89			throw new Exception\UnexpectedNodeValueFetchedException($value);
90			}
91
92			private function fetchValueDeepChildren(
93			Matcher\ChildMatcherInterface $matcher,
94			NodeValueInterface $value
95			): array {
96			if ($value instanceof ScalarValueInterface) {
97			return [];
98			}
99
100			if ($value instanceof ArrayValueInterface) {
101			return $this->fetchDeepElements($value->createIterator(), $matcher);
102			}
103
104			if ($value instanceof ObjectValueInterface) {
105			return $this->fetchDeepProperties($value->createIterator(), $matcher);
106			}
107
108			throw new Exception\UnexpectedNodeValueFetchedException($value);
109			}
110
111			private function fetchDeepElements(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
112			{
113			$results = [];
114			foreach ($this->valueIteratorFactory->createArrayIterator($iterator) as $index => $element) {
115			if ($matcher->match($index)) {
116			$results[] = $element;
117			}
118			array_push(
119			$results,
120			...$this->fetchValueDeepChildren($matcher, $element)
121			);
122			}
123
124			return $results;
125			}
126
127			private function fetchDeepProperties(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
128			{
129			$results = [];
130			foreach ($this->valueIteratorFactory->createObjectIterator($iterator) as $name => $property) {
131			if ($matcher->match($name)) {
132			$results[] = $property;
133			}
134			array_push(
135			$results,
136			...$this->fetchValueDeepChildren($matcher, $property)
137			);
138			}
139
140			return $results;
141			}
142
143			public function fetchFilterContext(NodeValueListInterface $source): NodeValueListInterface
144			{
145			$nodesBuilder = new NodeValueListBuilder;
146			foreach ($source->getValues() as $sourceIndex => $sourceValue) {
147			if (!$sourceValue instanceof NodeValueInterface) {
148			throw new Exception\InvalidContextValueException($sourceValue);
149			}
150			$outerIndex = $source->getIndexMap()->getOuterIndex($sourceIndex);
151			$children = $sourceValue instanceof ArrayValueInterface
152			? $this->fetchValueChildren(new Matcher\AnyChildMatcher, $sourceValue)
153			: [$sourceValue];
154			foreach ($children as $child) {
155			$nodesBuilder->addValue($child, $outerIndex);
156			}
157			}
158
159			return $nodesBuilder->build();
160			}
161
162			public function fetchFilteredValues(
163			EvaluatedValueListInterface $results,
164			NodeValueListInterface $values
165			): NodeValueListInterface {
166			if (!$values->getIndexMap()->equals($results->getIndexMap())) {
167			throw new Exception\IndexMapMatchFailedException($values, $results);
168			}
169			$nodesBuilder = new NodeValueListBuilder;
170			foreach ($values->getValues() as $index => $value) {
171			$evaluatedValue = $results->getValue($index);
172			if (!$evaluatedValue instanceof EvaluatedValueInterface) {
173			throw new Exception\InvalidFilterValueException($evaluatedValue);
174			}
175			if (!$evaluatedValue->getData()) {
176			continue;
177			}
178			$nodesBuilder->addValue(
179			$value,
180			$values->getIndexMap()->getOuterIndex($index)
181			);
182			}
183
184			return $nodesBuilder->build();
185			}
186
187			private function fetchElements(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
188			{
189			$results = [];
190			foreach ($this->valueIteratorFactory->createArrayIterator($iterator) as $index => $element) {
191			if ($matcher->match($index)) {
192			$results[] = $element;
193			}
194			}
195
196			return $results;
197			}
198
199			private function fetchProperties(Iterator $iterator, Matcher\ChildMatcherInterface $matcher): array
200			{
201			$results = [];
202			foreach ($this->valueIteratorFactory->createObjectIterator($iterator) as $name => $property) {
203			if ($matcher->match($name)) {
204			$results[] = $property;
205			}
206			}
207
208			return $results;
209			}
210
211			/**
212			* @param ValueListInterface $valueList
213			* @return int[][]
214			*/
215			public function fetchIndice(ValueListInterface $valueList): array
216			{
217			$result = [];
218			foreach ($valueList->getValues() as $valueIndex => $value) {
219			if (!$value instanceof ArrayValueInterface) {
220			$result[$valueIndex] = [];
221			continue;
222			}
223
224			$indice = [];
225			$elementIterator = $this->valueIteratorFactory->createArrayIterator($value->createIterator());
226			foreach ($elementIterator as $index => $element) {
227			$indice[] = $index;
228			}
229			$result[$valueIndex] = $indice;
230			}
231
232			return $result;
233			}
234
235			/**
236			* @param ValueListInterface $valueList
237			* @param int\|null $start
238			* @param int\|null $end
239			* @param int\|null $step
240			* @return int[][]
241			*/
242			public function fetchSliceIndice(ValueListInterface $valueList, ?int $start, ?int $end, ?int $step): array
243			{
244			$fullIndexList = $this->fetchIndice($valueList);
245
246			$result = [];
247			foreach ($fullIndexList as $valueIndex => $allIndice) {
248			if (!isset($step)) {
249			$step = 1;
250			}
251			$isReverse = $step < 0;
252			$indexCount = count($allIndice);
253			if (!isset($start)) {
254			$start = $isReverse ? -1 : 0;
255			}
256			if ($start < 0) {
257			$start = max($start + $indexCount, 0);
258			}
259			if (!isset($end)) {
260			$end = $isReverse ? -$indexCount - 1 : $indexCount;
261			}
262			if ($end > $indexCount) {
263			$end = $indexCount;
264			}
265			if ($end < 0) {
266			$end = max($end + $indexCount, $isReverse ? -1 : 0);
267			}
268			$indice = [];
269			$index = $start;
270			while ($isReverse ? $index > $end : $index < $end) {
271			$indice[] = $allIndice[$index];
272			$index += $step;
273			}
274			$result[] = $indice;
275			}
276
277			return $result;
278			}
279			}
280

remorhaz / php-json-path

Push — master ( 0c0824...37a545 )

Fetcher::fetchDeepElements() A

Complexity

Size

Duplication

Code Coverage

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