DomToArraySimplifier::getNodeChildren() - Code Metrics - consolidation/output-formatters - Measure and Improve Code Quality continuously with Scrutinizer

DomToArraySimplifier::getNodeChildren() A
last analyzed 2020-05-27 20:53 UTC

↳ Parent: DomToArraySimplifier

Complexity

Conditions	3
Paths	3

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	14
rs	9.7998
c	0
b	0
f	0
cc	3
nc	3
nop	1

<?php
namespace Consolidation\OutputFormatters\Transformations;

use Consolidation\OutputFormatters\Options\FormatterOptions;
use Consolidation\OutputFormatters\StructuredData\Xml\DomDataInterface;
use Consolidation\OutputFormatters\StructuredData\Xml\XmlSchema;

/**
 * Simplify a DOMDocument to an array.
 */
class DomToArraySimplifier implements SimplifyToArrayInterface
{
    public function __construct()
    {
    }

    /**
     * @param ReflectionClass $dataType
     */
    public function canSimplify(\ReflectionClass $dataType)
    {
        return
            $dataType->isSubclassOf('\Consolidation\OutputFormatters\StructuredData\Xml\DomDataInterface') ||
            $dataType->isSubclassOf('DOMDocument') ||
            ($dataType->getName() == 'DOMDocument');

    }

    public function simplifyToArray($structuredData, FormatterOptions $options)
    {
        if ($structuredData instanceof DomDataInterface) {
            $structuredData = $structuredData->getDomData();
        }
        if ($structuredData instanceof \DOMDocument) {
            // $schema = $options->getXmlSchema();
            $simplified = $this->elementToArray($structuredData);
            $structuredData = array_shift($simplified);
        }
        return $structuredData;
    }

    /**
     * Recursively convert the provided DOM element into a php array.
     *
     * @param \DOMNode $element
     * @return array
     */
    protected function elementToArray(\DOMNode $element)
    {
        if ($element->nodeType == XML_TEXT_NODE) {
            return $element->nodeValue;
        }
        $attributes = $this->getNodeAttributes($element);
        $children = $this->getNodeChildren($element);

        return array_merge($attributes, $children);
    }

    /**
     * Get all of the attributes of the provided element.
     *
     * @param \DOMNode $element
     * @return array
     */
    protected function getNodeAttributes($element)
    {
        if (empty($element->attributes)) {
            return [];
        }
        $attributes = [];
        foreach ($element->attributes as $key => $attribute) {
            $attributes[$key] = $attribute->nodeValue;
        }
        return $attributes;
    }

    /**
     * Get all of the children of the provided element, with simplification.
     *
     * @param \DOMNode $element
     * @return array
     */
    protected function getNodeChildren($element)
    {
        if (empty($element->childNodes)) {
            return [];
        }
        $uniformChildrenName = $this->hasUniformChildren($element);
        // Check for plurals.
        if (in_array($element->nodeName, ["{$uniformChildrenName}s", "{$uniformChildrenName}es"])) {
            $result = $this->getUniformChildren($element->nodeName, $element);
        } else {
            $result = $this->getUniqueChildren($element->nodeName, $element);
        }
        return array_filter($result);
    }

    /**
     * Get the data from the children of the provided node in preliminary
     * form.
     *
     * @param \DOMNode $element
     * @return array
     */
    protected function getNodeChildrenData($element)
    {
        $children = [];
        foreach ($element->childNodes as $key => $value) {
            $children[$key] = $this->elementToArray($value);
        }
        return $children;
    }

    /**
     * Determine whether the children of the provided element are uniform.
     * @see getUniformChildren(), below.
     *
     * @param \DOMNode $element
     * @return boolean
     */
    protected function hasUniformChildren($element)
    {
        $last = false;
        foreach ($element->childNodes as $key => $value) {
            $name = $value->nodeName;
            if (!$name) {
                return false;
            }
            if ($last && ($name != $last)) {
                return false;
            }
            $last = $name;
        }
        return $last;
    }

    /**
     * Convert the children of the provided DOM element into an array.
     * Here, 'uniform' means that all of the element names of the children
     * are identical, and further, the element name of the parent is the
     * plural form of the child names.  When the children are uniform in
     * this way, then the parent element name will be used as the key to
     * store the children in, and the child list will be returned as a
     * simple list with their (duplicate) element names omitted.
     *
     * @param string $parentKey
     * @param \DOMNode $element
     * @return array
     */
    protected function getUniformChildren($parentKey, $element)
    {
        $children = $this->getNodeChildrenData($element);
        $simplifiedChildren = [];
        foreach ($children as $key => $value) {
            if ($this->valueCanBeSimplified($value)) {
                $value = array_shift($value);
            }
            $id = $this->getIdOfValue($value);
            if ($id) {
                $simplifiedChildren[$parentKey][$id] = $value;
            } else {
                $simplifiedChildren[$parentKey][] = $value;
            }
        }
        return $simplifiedChildren;
    }

    /**
     * Determine whether the provided value has additional unnecessary
     * nesting.  {"color": "red"} is converted to "red". No other
     * simplification is done.
     *
     * @param \DOMNode $value
     * @return boolean
     */
    protected function valueCanBeSimplified($value)
    {
        if (!is_array($value)) {
            return false;
        }
        if (count($value) != 1) {
            return false;
        }
        $data = array_shift($value);
        return is_string($data);
    }

    /**
     * If the object has an 'id' or 'name' element, then use that
     * as the array key when storing this value in its parent.
     * @param mixed $value
     * @return string
     */
    protected function getIdOfValue($value)
    {
        if (!is_array($value)) {
            return false;
        }
        if (array_key_exists('id', $value)) {
            return trim($value['id'], '-');
        }
        if (array_key_exists('name', $value)) {
            return trim($value['name'], '-');
        }
    }

    /**
     * Convert the children of the provided DOM element into an array.
     * Here, 'unique' means that all of the element names of the children are
     * different.  Since the element names will become the key of the
     * associative array that is returned, so duplicates are not supported.
     * If there are any duplicates, then an exception will be thrown.
     *
     * @param string $parentKey
     * @param \DOMNode $element
     * @return array
     */
    protected function getUniqueChildren($parentKey, $element)

    {
        $children = $this->getNodeChildrenData($element);
        if ((count($children) == 1) && (is_string($children[0]))) {
            return [$element->nodeName => $children[0]];
        }
        $simplifiedChildren = [];
        foreach ($children as $key => $value) {
            if (is_numeric($key) && is_array($value) && (count($value) == 1)) {
                $valueKeys = array_keys($value);
                $key = $valueKeys[0];
                $value = array_shift($value);
            }
            if (array_key_exists($key, $simplifiedChildren)) {
                throw new \Exception("Cannot convert data from a DOM document to an array, because <$key> appears more than once, and is not wrapped in a <{$key}s> element.");
            }
            $simplifiedChildren[$key] = $value;
        }
        return $simplifiedChildren;
    }
}


1			<?php
2			namespace Consolidation\OutputFormatters\Transformations;
3
4			use Consolidation\OutputFormatters\Options\FormatterOptions;
5			use Consolidation\OutputFormatters\StructuredData\Xml\DomDataInterface;
6			use Consolidation\OutputFormatters\StructuredData\Xml\XmlSchema;
7
8			/**
9			* Simplify a DOMDocument to an array.
10			*/
11			class DomToArraySimplifier implements SimplifyToArrayInterface
12			{
13			public function __construct()
14			{
15			}
16
17			/**
18			* @param ReflectionClass $dataType
19			*/
20			public function canSimplify(\ReflectionClass $dataType)
21			{
22			return
23			$dataType->isSubclassOf('\Consolidation\OutputFormatters\StructuredData\Xml\DomDataInterface') \|\|
24			$dataType->isSubclassOf('DOMDocument') \|\|
25			($dataType->getName() == 'DOMDocument');
			0 ignored issues – show Bug introduced 2020-02-07 03:01 UTC by Report Bug Copy Issue Report Consider using `$dataType->name`. There is an issue with `getName()` and APC-enabled PHP versions. Loading history...
26			}
27
28			public function simplifyToArray($structuredData, FormatterOptions $options)
29			{
30			if ($structuredData instanceof DomDataInterface) {
31			$structuredData = $structuredData->getDomData();
32			}
33			if ($structuredData instanceof \DOMDocument) {
34			// $schema = $options->getXmlSchema();
35			$simplified = $this->elementToArray($structuredData);
36			$structuredData = array_shift($simplified);
37			}
38			return $structuredData;
39			}
40
41			/**
42			* Recursively convert the provided DOM element into a php array.
43			*
44			* @param \DOMNode $element
45			* @return array
46			*/
47			protected function elementToArray(\DOMNode $element)
48			{
49			if ($element->nodeType == XML_TEXT_NODE) {
50			return $element->nodeValue;
51			}
52			$attributes = $this->getNodeAttributes($element);
53			$children = $this->getNodeChildren($element);
54
55			return array_merge($attributes, $children);
56			}
57
58			/**
59			* Get all of the attributes of the provided element.
60			*
61			* @param \DOMNode $element
62			* @return array
63			*/
64			protected function getNodeAttributes($element)
65			{
66			if (empty($element->attributes)) {
67			return [];
68			}
69			$attributes = [];
70			foreach ($element->attributes as $key => $attribute) {
71			$attributes[$key] = $attribute->nodeValue;
72			}
73			return $attributes;
74			}
75
76			/**
77			* Get all of the children of the provided element, with simplification.
78			*
79			* @param \DOMNode $element
80			* @return array
81			*/
82			protected function getNodeChildren($element)
83			{
84			if (empty($element->childNodes)) {
85			return [];
86			}
87			$uniformChildrenName = $this->hasUniformChildren($element);
88			// Check for plurals.
89			if (in_array($element->nodeName, ["{$uniformChildrenName}s", "{$uniformChildrenName}es"])) {
90			$result = $this->getUniformChildren($element->nodeName, $element);
91			} else {
92			$result = $this->getUniqueChildren($element->nodeName, $element);
93			}
94			return array_filter($result);
95			}
96
97			/**
98			* Get the data from the children of the provided node in preliminary
99			* form.
100			*
101			* @param \DOMNode $element
102			* @return array
103			*/
104			protected function getNodeChildrenData($element)
105			{
106			$children = [];
107			foreach ($element->childNodes as $key => $value) {
108			$children[$key] = $this->elementToArray($value);
109			}
110			return $children;
111			}
112
113			/**
114			* Determine whether the children of the provided element are uniform.
115			* @see getUniformChildren(), below.
116			*
117			* @param \DOMNode $element
118			* @return boolean
119			*/
120			protected function hasUniformChildren($element)
121			{
122			$last = false;
123			foreach ($element->childNodes as $key => $value) {
124			$name = $value->nodeName;
125			if (!$name) {
126			return false;
127			}
128			if ($last && ($name != $last)) {
129			return false;
130			}
131			$last = $name;
132			}
133			return $last;
134			}
135
136			/**
137			* Convert the children of the provided DOM element into an array.
138			* Here, 'uniform' means that all of the element names of the children
139			* are identical, and further, the element name of the parent is the
140			* plural form of the child names. When the children are uniform in
141			* this way, then the parent element name will be used as the key to
142			* store the children in, and the child list will be returned as a
143			* simple list with their (duplicate) element names omitted.
144			*
145			* @param string $parentKey
146			* @param \DOMNode $element
147			* @return array
148			*/
149			protected function getUniformChildren($parentKey, $element)
150			{
151			$children = $this->getNodeChildrenData($element);
152			$simplifiedChildren = [];
153			foreach ($children as $key => $value) {
154			if ($this->valueCanBeSimplified($value)) {
155			$value = array_shift($value);
156			}
157			$id = $this->getIdOfValue($value);
158			if ($id) {
159			$simplifiedChildren[$parentKey][$id] = $value;
160			} else {
161			$simplifiedChildren[$parentKey][] = $value;
162			}
163			}
164			return $simplifiedChildren;
165			}
166
167			/**
168			* Determine whether the provided value has additional unnecessary
169			* nesting. {"color": "red"} is converted to "red". No other
170			* simplification is done.
171			*
172			* @param \DOMNode $value
173			* @return boolean
174			*/
175			protected function valueCanBeSimplified($value)
176			{
177			if (!is_array($value)) {
178			return false;
179			}
180			if (count($value) != 1) {
181			return false;
182			}
183			$data = array_shift($value);
184			return is_string($data);
185			}
186
187			/**
188			* If the object has an 'id' or 'name' element, then use that
189			* as the array key when storing this value in its parent.
190			* @param mixed $value
191			* @return string
192			*/
193			protected function getIdOfValue($value)
194			{
195			if (!is_array($value)) {
196			return false;
197			}
198			if (array_key_exists('id', $value)) {
199			return trim($value['id'], '-');
200			}
201			if (array_key_exists('name', $value)) {
202			return trim($value['name'], '-');
203			}
204			}
205
206			/**
207			* Convert the children of the provided DOM element into an array.
208			* Here, 'unique' means that all of the element names of the children are
209			* different. Since the element names will become the key of the
210			* associative array that is returned, so duplicates are not supported.
211			* If there are any duplicates, then an exception will be thrown.
212			*
213			* @param string $parentKey
214			* @param \DOMNode $element
215			* @return array
216			*/
217			protected function getUniqueChildren($parentKey, $element)
			0 ignored issues – show Unused Code introduced 2017-08-17 22:00 UTC by Report Bug Copy Issue Report The parameter `$parentKey` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
218			{
219			$children = $this->getNodeChildrenData($element);
220			if ((count($children) == 1) && (is_string($children[0]))) {
221			return [$element->nodeName => $children[0]];
222			}
223			$simplifiedChildren = [];
224			foreach ($children as $key => $value) {
225			if (is_numeric($key) && is_array($value) && (count($value) == 1)) {
226			$valueKeys = array_keys($value);
227			$key = $valueKeys[0];
228			$value = array_shift($value);
229			}
230			if (array_key_exists($key, $simplifiedChildren)) {
231			throw new \Exception("Cannot convert data from a DOM document to an array, because <$key> appears more than once, and is not wrapped in a <{$key}s> element.");
232			}
233			$simplifiedChildren[$key] = $value;
234			}
235			return $simplifiedChildren;
236			}
237			}
238

consolidation / output-formatters

DomToArraySimplifier::getNodeChildren() A last analyzed 2020-05-27 20:53 UTC

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like

DomToArraySimplifier::getNodeChildren() A
last analyzed 2020-05-27 20:53 UTC