AbstractElementProcessor::getThing() - Code Metrics - Inspection of "Added multiple property support" - jkphl/rdfa-lite-microdata - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 8c4081...342540 )

by Joschi

created 2017-02-18 21:57 UTC

AbstractElementProcessor::getThing() A

↳ Parent: AbstractElementProcessor

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	10
ccs	5
cts	5
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	5
nc	2
nop	3
crap	2

<?php

/**
 * rdfa-lite-microdata
 *
 * @category Jkphl
 * @package Jkphl\RdfaLiteMicrodata
 * @subpackage Jkphl\RdfaLiteMicrodata\Infrastructure
 * @author Joschi Kuphal <[email protected]> / @jkphl
 * @copyright Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl
 * @license http://opensource.org/licenses/MIT The MIT License (MIT)
 */

/***********************************************************************************
 *  The MIT License (MIT)
 *
 *  Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy of
 *  this software and associated documentation files (the "Software"), to deal in
 *  the Software without restriction, including without limitation the rights to
 *  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 *  the Software, and to permit persons to whom the Software is furnished to do so,
 *  subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 *  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 *  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ***********************************************************************************/

namespace Jkphl\RdfaLiteMicrodata\Infrastructure\Parser;

use Jkphl\RdfaLiteMicrodata\Application\Context\ContextInterface;
use Jkphl\RdfaLiteMicrodata\Application\Contract\ElementProcessorInterface;
use Jkphl\RdfaLiteMicrodata\Domain\Property\Property;
use Jkphl\RdfaLiteMicrodata\Domain\Thing\Thing;
use Jkphl\RdfaLiteMicrodata\Domain\Thing\ThingInterface;
use Jkphl\RdfaLiteMicrodata\Domain\Type\Type;
use Jkphl\RdfaLiteMicrodata\Domain\Type\TypeInterface;
use Jkphl\RdfaLiteMicrodata\Domain\Vocabulary\VocabularyInterface;
use Jkphl\RdfaLiteMicrodata\Infrastructure\Exceptions\OutOfBoundsException;
use Jkphl\RdfaLiteMicrodata\Infrastructure\Exceptions\RuntimeException;

/**
 * Abstract element processor
 *
 * @package Jkphl\RdfaLiteMicrodata
 * @subpackage Jkphl\RdfaLiteMicrodata\Infrastructure
 */
abstract class AbstractElementProcessor implements ElementProcessorInterface
{
    /**
     * First property
     *
     * @var int
     */
    const PROPERTY_FIRST = 1;
    /**
     * Last property
     *
     * @var int
     */
    const PROPERTY_LAST = 2;
    /**
     * Tag name / attribute map
     *
     * @var array
     */
    protected static $tagNameAttributes = [
        'META' => 'content',
        'AUDIO' => 'src',
        'EMBED' => 'src',
        'IFRAME' => 'src',
        'IMG' => 'src',
        'SOURCE' => 'src',
        'TRACK' => 'src',
        'VIDEO' => 'src',
        'A' => 'href',
        'AREA' => 'href',
        'LINK' => 'href',
        'OBJECT' => 'data',
        'DATA' => 'value',
        'METER' => 'value',
        'TIME' => 'datetime'
    ];
    /**
     * Property cache
     *
     * @var array
     */
    protected static $propertyCache = [];
    /**
     * HTML mode
     *
     * @var boolean
     */
    protected $html;

    /**
     * Element processor constructor
     *
     * @param bool $html HTML mode
     */
    public function __construct($html = false)
    {
        $this->html = boolval($html);
    }

    /**
     * Process a DOM element's child
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Context
     * @return ContextInterface Context for children
     */
    public function processElementChildren(\DOMElement $element, ContextInterface $context)
    {
        // Process a child
        return $this->processChild($element, $context);
    }

    /**
     * Create a nested child
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Context
     * @return ContextInterface Context for children
     */
    abstract protected function processChild(\DOMElement $element, ContextInterface $context);

    /**
     * Create a property
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Inherited Context
     * @return ContextInterface Local context for this element
     */
    abstract protected function processProperty(\DOMElement $element, ContextInterface $context);

    /**
     * Create a property by prefix and name
     *
     * @param string $prefix Property prefix
     * @param string $name Property name
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Inherited Context
     * @param int $mode Property mode
     * @return ContextInterface Local context for this element
     */
    protected function processPropertyPrefixName(
        $prefix,
        $name,
        \DOMElement $element,
        ContextInterface $context,
        $mode
    ) {
        $vocabulary = $this->getVocabulary($prefix, $context);
        if ($vocabulary instanceof VocabularyInterface) {
            $context = $this->addProperty($element, $context, $name, $vocabulary, $mode);
        }

        return $context;
    }

    /**
     * Return a vocabulary by prefix with fallback to the default vocabulary
     *
     * @param string $prefix Vocabulary prefix
     * @param ContextInterface $context Context
     * @return VocabularyInterface Vocabulary
     */
    abstract protected function getVocabulary($prefix, ContextInterface $context);

    /**
     * Add a single property
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Inherited Context
     * @param string $name Property name
     * @param VocabularyInterface $vocabulary Property vocabulary
     * @param int $mode Property mode
     * @return ContextInterface Local context for this element
     */
    protected function addProperty(
        \DOMElement $element,
        ContextInterface $context,
        $name,
        VocabularyInterface $vocabulary,
        $mode
    ) {
        $resourceId = $this->getResourceId($element);

        // Get the property value
        $propertyValue = $this->getPropertyValue($element, $context);
        $property = new Property($name, $vocabulary, $propertyValue, $resourceId);

        // Add the property to the current parent thing
        $context->getParentThing()->addProperty($property);

        // If the property value is a thing and this is the element's last property
        if (($propertyValue instanceof ThingInterface) && ($mode & self::PROPERTY_LAST)) {
            // Set the thing as parent thing for nested iterations
            $context = $context->setParentThing($propertyValue);
        }

        return $context;
    }

    /**
     * Return the resource ID
     *
     * @param \DOMElement $element DOM element
     * @return string|null Resource ID
     */
    abstract protected function getResourceId(\DOMElement $element);

    /**
     * Return a property value (type and tag name dependent)
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Context
     * @return ThingInterface|string Property value
     */
    protected function getPropertyValue(\DOMElement $element, ContextInterface $context)
    {
        $value = $this->getPropertyCache($element);
        if ($value !== null) {
            return $value;
        }

        $propertyChild = $this->getPropertyChildValue($element, $context);
        if ($propertyChild instanceof ThingInterface) {
            return $this->setPropertyCache($element, $propertyChild);
        }

        // Return a string property value
        return $this->setPropertyCache($element, $this->getPropertyStringValue($element));
    }

    /**
     * Return a cached property value (if available)
     *
     * @param \DOMElement $element Element
     * @return mixed|null Property value
     */
    protected function getPropertyCache(\DOMElement $element)
    {
        $elementHash = spl_object_hash($element);
        return isset(self::$propertyCache[$elementHash]) ? self::$propertyCache[$elementHash] : null;
    }

    /**
     * Return a property child value
     *
     * @param \DOMElement $element DOM element
     * @param ContextInterface $context Context
     * @return ThingInterface|null Property child value
     */
    abstract protected function getPropertyChildValue(\DOMElement $element, ContextInterface $context);

    /**
     * Cache a property value
     *
     * @param \DOMElement $element DOM element
     * @param mixed $value Value
     * @return mixed $value Value
     */
    protected function setPropertyCache(\DOMElement $element, $value)
    {
        return self::$propertyCache[spl_object_hash($element)] = $value;
    }

    /**
     * Return a property value (type and tag name dependent)
     *
     * @param \DOMElement $element DOM element
     * @return ThingInterface|string Property value
     */
    protected function getPropertyStringValue(\DOMElement $element)
    {
        // If HTML mode is active
        if ($this->html) {
            $tagName = strtoupper($element->tagName);

            // Map to an attribute (if applicable)
            if (array_key_exists($tagName, self::$tagNameAttributes)) {
                $value = strval($element->getAttribute(self::$tagNameAttributes[$tagName]));
                if (($tagName != 'TIME') || !empty($value)) {
                    return $value;
                }
            }
        }

        // Return the text content
        return $element->textContent;
    }

    /**
     * Return a thing by typeof value
     *
     * @param string $typeof Thing type
     * @param string $resourceId Resource ID
     * @param ContextInterface $context Context
     * @return Thing Thing
     * @throws RuntimeException If the default vocabulary is empty
     */
    protected function getThing($typeof, $resourceId, ContextInterface $context)
    {
        /** @var TypeInterface[] $types */
        $types = [];
        foreach (preg_split('/\s+/', $typeof) as $prefixedType) {
            $types[] = $this->getType($prefixedType, $context);
        }

        return new Thing($types, $resourceId);
    }

    /**
     * Instanciate a type
     *
     * @param string $prefixedType Prefixed type
     * @param ContextInterface $context Context
     * @return TypeInterface Type
     */
    protected function getType($prefixedType, ContextInterface $context)
    {
        list($prefix, $typeName) = $this->getPrefixName($prefixedType);
        $vocabulary = $this->getVocabulary($prefix, $context);
        if ($vocabulary instanceof VocabularyInterface) {
            return new Type($typeName, $vocabulary);
        }

        // If the default vocabulary is empty
        if (empty($prefix)) {
            throw new RuntimeException(
                RuntimeException::EMPTY_DEFAULT_VOCABULARY_STR,
                RuntimeException::EMPTY_DEFAULT_VOCABULARY
            );
        }

        throw new OutOfBoundsException(
            sprintf(OutOfBoundsException::UNKNOWN_VOCABULARY_PREFIX_STR, $prefix),
            OutOfBoundsException::UNKNOWN_VOCABULARY_PREFIX
        );
    }

    /**
     * Split a value into a vocabulary prefix and a name
     *
     * @param string $prefixName Prefixed name
     * @return array Prefix and name
     */
    abstract protected function getPrefixName($prefixName);
}


1		<?php
2
3		/**
4		* rdfa-lite-microdata
5		*
6		* @category Jkphl
7		* @package Jkphl\RdfaLiteMicrodata
8		* @subpackage Jkphl\RdfaLiteMicrodata\Infrastructure
9		* @author Joschi Kuphal <[email protected]> / @jkphl
10		* @copyright Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl
11		* @license http://opensource.org/licenses/MIT The MIT License (MIT)
12		*/
13
14		/***********************************************************************************
15		* The MIT License (MIT)
16		*
17		* Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl
18		*
19		* Permission is hereby granted, free of charge, to any person obtaining a copy of
20		* this software and associated documentation files (the "Software"), to deal in
21		* the Software without restriction, including without limitation the rights to
22		* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
23		* the Software, and to permit persons to whom the Software is furnished to do so,
24		* subject to the following conditions:
25		*
26		* The above copyright notice and this permission notice shall be included in all
27		* copies or substantial portions of the Software.
28		*
29		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
30		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
31		* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
32		* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
33		* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
34		* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35		***********************************************************************************/
36
37		namespace Jkphl\RdfaLiteMicrodata\Infrastructure\Parser;
38
39		use Jkphl\RdfaLiteMicrodata\Application\Context\ContextInterface;
40		use Jkphl\RdfaLiteMicrodata\Application\Contract\ElementProcessorInterface;
41		use Jkphl\RdfaLiteMicrodata\Domain\Property\Property;
42		use Jkphl\RdfaLiteMicrodata\Domain\Thing\Thing;
43		use Jkphl\RdfaLiteMicrodata\Domain\Thing\ThingInterface;
44		use Jkphl\RdfaLiteMicrodata\Domain\Type\Type;
45		use Jkphl\RdfaLiteMicrodata\Domain\Type\TypeInterface;
46		use Jkphl\RdfaLiteMicrodata\Domain\Vocabulary\VocabularyInterface;
47		use Jkphl\RdfaLiteMicrodata\Infrastructure\Exceptions\OutOfBoundsException;
48		use Jkphl\RdfaLiteMicrodata\Infrastructure\Exceptions\RuntimeException;
49
50		/**
51		* Abstract element processor
52		*
53		* @package Jkphl\RdfaLiteMicrodata
54		* @subpackage Jkphl\RdfaLiteMicrodata\Infrastructure
55		*/
56		abstract class AbstractElementProcessor implements ElementProcessorInterface
57		{
58		/**
59		* First property
60		*
61		* @var int
62		*/
63		const PROPERTY_FIRST = 1;
64		/**
65		* Last property
66		*
67		* @var int
68		*/
69		const PROPERTY_LAST = 2;
70		/**
71		* Tag name / attribute map
72		*
73		* @var array
74		*/
75		protected static $tagNameAttributes = [
76		'META' => 'content',
77		'AUDIO' => 'src',
78		'EMBED' => 'src',
79		'IFRAME' => 'src',
80		'IMG' => 'src',
81		'SOURCE' => 'src',
82		'TRACK' => 'src',
83		'VIDEO' => 'src',
84		'A' => 'href',
85		'AREA' => 'href',
86		'LINK' => 'href',
87		'OBJECT' => 'data',
88		'DATA' => 'value',
89		'METER' => 'value',
90		'TIME' => 'datetime'
91		];
92		/**
93		* Property cache
94		*
95		* @var array
96		*/
97		protected static $propertyCache = [];
98		/**
99		* HTML mode
100		*
101		* @var boolean
102		*/
103		protected $html;
104
105		/**
106		* Element processor constructor
107		*
108		* @param bool $html HTML mode
109		*/
110	13	public function __construct($html = false)
111		{
112	13	$this->html = boolval($html);
113	13	}
114
115		/**
116		* Process a DOM element's child
117		*
118		* @param \DOMElement $element DOM element
119		* @param ContextInterface $context Context
120		* @return ContextInterface Context for children
121		*/
122	13	public function processElementChildren(\DOMElement $element, ContextInterface $context)
123		{
124		// Process a child
125	13	return $this->processChild($element, $context);
126		}
127
128		/**
129		* Create a nested child
130		*
131		* @param \DOMElement $element DOM element
132		* @param ContextInterface $context Context
133		* @return ContextInterface Context for children
134		*/
135		abstract protected function processChild(\DOMElement $element, ContextInterface $context);
136
137		/**
138		* Create a property
139		*
140		* @param \DOMElement $element DOM element
141		* @param ContextInterface $context Inherited Context
142		* @return ContextInterface Local context for this element
143		*/
144		abstract protected function processProperty(\DOMElement $element, ContextInterface $context);
145
146		/**
147		* Create a property by prefix and name
148		*
149		* @param string $prefix Property prefix
150		* @param string $name Property name
151		* @param \DOMElement $element DOM element
152		* @param ContextInterface $context Inherited Context
153		* @param int $mode Property mode
154		* @return ContextInterface Local context for this element
155		*/
156	7	protected function processPropertyPrefixName(
157		$prefix,
158		$name,
159		\DOMElement $element,
160		ContextInterface $context,
161		$mode
162		) {
163	7	$vocabulary = $this->getVocabulary($prefix, $context);
164	7	if ($vocabulary instanceof VocabularyInterface) {
165	7	$context = $this->addProperty($element, $context, $name, $vocabulary, $mode);
166		}
167
168	6	return $context;
169		}
170
171		/**
172		* Return a vocabulary by prefix with fallback to the default vocabulary
173		*
174		* @param string $prefix Vocabulary prefix
175		* @param ContextInterface $context Context
176		* @return VocabularyInterface Vocabulary
177		*/
178		abstract protected function getVocabulary($prefix, ContextInterface $context);
179
180		/**
181		* Add a single property
182		*
183		* @param \DOMElement $element DOM element
184		* @param ContextInterface $context Inherited Context
185		* @param string $name Property name
186		* @param VocabularyInterface $vocabulary Property vocabulary
187		* @param int $mode Property mode
188		* @return ContextInterface Local context for this element
189		*/
190	7	protected function addProperty(
191		\DOMElement $element,
192		ContextInterface $context,
193		$name,
194		VocabularyInterface $vocabulary,
195		$mode
196		) {
197	7	$resourceId = $this->getResourceId($element);
198
199		// Get the property value
200	7	$propertyValue = $this->getPropertyValue($element, $context);
201	7	$property = new Property($name, $vocabulary, $propertyValue, $resourceId);
202
203		// Add the property to the current parent thing
204	6	$context->getParentThing()->addProperty($property);
205
206		// If the property value is a thing and this is the element's last property
207	6	if (($propertyValue instanceof ThingInterface) && ($mode & self::PROPERTY_LAST)) {
208		// Set the thing as parent thing for nested iterations
209	3	$context = $context->setParentThing($propertyValue);
210		}
211
212	6	return $context;
213		}
214
215		/**
216		* Return the resource ID
217		*
218		* @param \DOMElement $element DOM element
219		* @return string\|null Resource ID
220		*/
221		abstract protected function getResourceId(\DOMElement $element);
222
223		/**
224		* Return a property value (type and tag name dependent)
225		*
226		* @param \DOMElement $element DOM element
227		* @param ContextInterface $context Context
228		* @return ThingInterface\|string Property value
229		*/
230	7	protected function getPropertyValue(\DOMElement $element, ContextInterface $context)
231		{
232	7	$value = $this->getPropertyCache($element);
233	7	if ($value !== null) {
234	1	return $value;
235		}
236
237	7	$propertyChild = $this->getPropertyChildValue($element, $context);
238	7	if ($propertyChild instanceof ThingInterface) {
239	3	return $this->setPropertyCache($element, $propertyChild);
240		}
241
242		// Return a string property value
243	7	return $this->setPropertyCache($element, $this->getPropertyStringValue($element));
244		}
245
246		/**
247		* Return a cached property value (if available)
248		*
249		* @param \DOMElement $element Element
250		* @return mixed\|null Property value
251		*/
252	7	protected function getPropertyCache(\DOMElement $element)
253		{
254	7	$elementHash = spl_object_hash($element);
255	7	return isset(self::$propertyCache[$elementHash]) ? self::$propertyCache[$elementHash] : null;
256		}
257
258		/**
259		* Return a property child value
260		*
261		* @param \DOMElement $element DOM element
262		* @param ContextInterface $context Context
263		* @return ThingInterface\|null Property child value
264		*/
265		abstract protected function getPropertyChildValue(\DOMElement $element, ContextInterface $context);
266
267		/**
268		* Cache a property value
269		*
270		* @param \DOMElement $element DOM element
271		* @param mixed $value Value
272		* @return mixed $value Value
273		*/
274	7	protected function setPropertyCache(\DOMElement $element, $value)
275		{
276	7	return self::$propertyCache[spl_object_hash($element)] = $value;
277		}
278
279		/**
280		* Return a property value (type and tag name dependent)
281		*
282		* @param \DOMElement $element DOM element
283		* @return ThingInterface\|string Property value
284		*/
285	7	protected function getPropertyStringValue(\DOMElement $element)
286		{
287		// If HTML mode is active
288	7	if ($this->html) {
289	6	$tagName = strtoupper($element->tagName);
290
291		// Map to an attribute (if applicable)
292	6	if (array_key_exists($tagName, self::$tagNameAttributes)) {
293	5	$value = strval($element->getAttribute(self::$tagNameAttributes[$tagName]));
294	5	if (($tagName != 'TIME') \|\| !empty($value)) {
295	5	return $value;
296		}
297		}
298		}
299
300		// Return the text content
301	7	return $element->textContent;
302		}
303
304		/**
305		* Return a thing by typeof value
306		*
307		* @param string $typeof Thing type
308		* @param string $resourceId Resource ID
309		* @param ContextInterface $context Context
310		* @return Thing Thing
311		* @throws RuntimeException If the default vocabulary is empty
312		*/
313	13	protected function getThing($typeof, $resourceId, ContextInterface $context)
314		{
315		/** @var TypeInterface[] $types */
316	13	$types = [];
317	13	foreach (preg_split('/\s+/', $typeof) as $prefixedType) {
318	13	$types[] = $this->getType($prefixedType, $context);
319		}
320
321	7	return new Thing($types, $resourceId);
322		}
323
324		/**
325		* Instanciate a type
326		*
327		* @param string $prefixedType Prefixed type
328		* @param ContextInterface $context Context
329		* @return TypeInterface Type
330		*/
331	13	protected function getType($prefixedType, ContextInterface $context)
332		{
333	13	list($prefix, $typeName) = $this->getPrefixName($prefixedType);
334	13	$vocabulary = $this->getVocabulary($prefix, $context);
335	10	if ($vocabulary instanceof VocabularyInterface) {
336	7	return new Type($typeName, $vocabulary);
337		}
338
339		// If the default vocabulary is empty
340	3	if (empty($prefix)) {
341	3	throw new RuntimeException(
342	3	RuntimeException::EMPTY_DEFAULT_VOCABULARY_STR,
343	3	RuntimeException::EMPTY_DEFAULT_VOCABULARY
344		);
345		}
346
347		throw new OutOfBoundsException(
348		sprintf(OutOfBoundsException::UNKNOWN_VOCABULARY_PREFIX_STR, $prefix),
349		OutOfBoundsException::UNKNOWN_VOCABULARY_PREFIX
350		);
351		}
352
353		/**
354		* Split a value into a vocabulary prefix and a name
355		*
356		* @param string $prefixName Prefixed name
357		* @return array Prefix and name
358		*/
359		abstract protected function getPrefixName($prefixName);
360		}
361

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