MetadataProvider::getEntityTypesAndResourceSets() - Code Metrics - Inspection of "Hook up stateless auth" - Algo-Web/POData-Laravel - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

Pull Request — master (#50)

by Alex

created 2017-05-29 16:20 UTC

MetadataProvider::getEntityTypesAndResourceSets() B

↳ Parent: MetadataProvider

Complexity

Conditions	3
Paths	3

Size

Total Lines	28
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
dl	0
loc	28
ccs	0
cts	0
cp	0
rs	8.8571
c	1
b	0
f	0
cc	3
eloc	18
nc	3
nop	2
crap	12

<?php

namespace AlgoWeb\PODataLaravel\Providers;

use Illuminate\Support\Facades\App;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Cache;
use POData\Providers\Metadata\IMetadataProvider;
use POData\Providers\Metadata\ResourceType;
use POData\Providers\Metadata\SimpleMetadataProvider;
use Illuminate\Support\Facades\Route;
use Illuminate\Support\Facades\Schema as Schema;

class MetadataProvider extends MetadataBaseProvider
{
    protected $multConstraints = [ '0..1' => ['1'], '1' => ['0..1', '*'], '*' => ['1', '*']];
    protected static $METANAMESPACE = "Data";

    /**
     * Bootstrap the application services.  Post-boot.
     *
     * @return void
     */
    public function boot()
    {
        self::$METANAMESPACE = env('ODataMetaNamespace', 'Data');
        // If we aren't migrated, there's no DB tables to pull metadata _from_, so bail out early
        try {
            if (!Schema::hasTable('migrations')) {
                return;
            }
        } catch (\Exception $e) {
            return;
        }

        $isCaching = true === $this->getIsCaching();
        $hasCache = Cache::has('metadata');

        if ($isCaching && $hasCache) {
            $meta = Cache::get('metadata');
            App::instance('metadata', $meta);

            return;
        }
        $meta = App::make('metadata');

        $modelNames = $this->getCandidateModels();

        list($EntityTypes) = $this->getEntityTypesAndResourceSets($meta, $modelNames);

        // need to lift EntityTypes
        $biDirect = $this->calculateRoundTripRelations();

        // now that endpoints are hooked up, tackle the relationships
        // if we'd tried earlier, we'd be guaranteed to try to hook a relation up to null, which would be bad
        foreach ($biDirect as $line) {
            $principalType = $line['principalType'];
            $principalMult = $line['principalMult'];
            $principalProp = $line['principalProp'];
            $dependentType = $line['dependentType'];
            $dependentMult = $line['dependentMult'];
            $dependentProp = $line['dependentProp'];
            if (!isset($EntityTypes[$principalType])) {
                continue;
            }
            if (!isset($EntityTypes[$dependentType])) {
                continue;
            }
            $principal = $EntityTypes[$principalType];
            $dependent = $EntityTypes[$dependentType];
            //many-to-many
            if ('*' == $principalMult && '*' == $dependentMult) {
                $meta->addResourceSetReferencePropertyBidirectional(
                    $principal,
                    $dependent,
                    $principalProp,
                    $dependentProp
                );
                continue;
            }
            //one-to-one
            if ('0..1' == $principalMult || '0..1' == $dependentMult) {
                assert($principalMult != $dependentMult, "Cannot have both ends with 0..1 multiplicity");
                $meta->addResourceReferenceSinglePropertyBidirectional(
                    $principal,
                    $dependent,
                    $principalProp,
                    $dependentProp
                );
                continue;
            }
            //principal-one-to-dependent-many
            if ('*' == $principalMult) {
                $meta->addResourceReferencePropertyBidirectional(
                    $principal,
                    $dependent,
                    $principalProp,
                    $dependentProp
                );
                continue;
            }
            //dependent-one-to-principal-many
            $meta->addResourceReferencePropertyBidirectional(
                $dependent,
                $principal,
                $dependentProp,
                $principalProp
            );
        }

        $key = 'metadata';
        $this->handlePostBoot($isCaching, $hasCache, $key, $meta);
    }

    /**
     * Register the application services.  Boot-time only.
     *
     * @return void
     */
    public function register()
    {
        $this->app->singleton('metadata', function ($app) {

            return new SimpleMetadataProvider('Data', self::$METANAMESPACE);
        });
    }

    /**
     * @return array
     */
    protected function getCandidateModels()
    {
        $Classes = $this->getClassMap();
        $ends = [];
        $startName = defined('PODATA_LARAVEL_APP_ROOT_NAMESPACE') ? PODATA_LARAVEL_APP_ROOT_NAMESPACE : "App";
        foreach ($Classes as $name) {
            if (\Illuminate\Support\Str::startsWith($name, $startName)) {
                if (in_array("AlgoWeb\\PODataLaravel\\Models\\MetadataTrait", class_uses($name))) {
                    $ends[] = $name;
                }
            }
        }
        return $ends;
    }

    /**
     * @param $meta
     * @param $ends
     * @return array
     */
    protected function getEntityTypesAndResourceSets($meta, $ends)
    {
        assert($meta instanceof IMetadataProvider, get_class($meta));
        $EntityTypes = [];
        $ResourceSets = [];
        $begins = [];
        $numEnds = count($ends);

        for ($i = 0; $i < $numEnds; $i++) {
            $bitter = $ends[$i];
            $fqModelName = $bitter;

            $instance = App::make($fqModelName);
            $name = strtolower($instance->getEndpointName());
            $metaSchema = $instance->getXmlSchema();

            // if for whatever reason we don't get an XML schema, move on to next entry and drop current one from
            // further processing
            if (null == $metaSchema) {
                continue;
            }
            $EntityTypes[$fqModelName] = $metaSchema;
            $ResourceSets[$fqModelName] = $meta->addResourceSet($name, $metaSchema);
            $begins[] = $bitter;
        }

        return array($EntityTypes, $ResourceSets, $begins);
    }

    public function calculateRoundTripRelations()
    {
        $modelNames = $this->getCandidateModels();

        $hooks = [];
        foreach ($modelNames as $name) {
            $model = new $name();
            $rels = $model->getRelationships();
            // it doesn't matter if a model has no relationships here, that lack will simply be skipped over
            // during hookup processing
            $hooks[$name] = $rels;
        }

        // model relation gubbins are assembled, now the hard bit starts
        // storing assembled bidirectional relationship schema
        $rawLines = [];
        // storing unprocessed relation gubbins for second-pass processing
        $remix = [];
        $this->calculateRoundTripRelationsFirstPass($hooks, $rawLines, $remix);

        // now for second processing pass, to pick up stuff that first didn't handle
        $rawLines = $this->calculateRoundTripRelationsSecondPass($remix, $rawLines);

        // deduplicate rawLines - can't use array_unique as array value elements are themselves arrays
        $lines = [];
        foreach ($rawLines as $line) {
            if (!in_array($line, $lines)) {
                $lines[] = $line;
            }
        }

        return $lines;
    }

    /**
     * @param $remix
     * @param $lines
     * @return array
     */
    private function calculateRoundTripRelationsSecondPass($remix, $lines)
    {
        foreach ($remix as $principalType => $value) {
            foreach ($value as $fk => $localRels) {
                foreach ($localRels as $dependentType => $deets) {
                    $principalMult = $deets['multiplicity'];
                    $principalProperty = $deets['property'];
                    $principalKey = $deets['local'];

                    if (!isset($remix[$dependentType])) {
                        continue;
                    }
                    $foreign = $remix[$dependentType];
                    if (!isset($foreign[$principalKey])) {
                        continue;
                    }
                    $foreign = $foreign[$principalKey];
                    $dependentKey = $foreign[$dependentType]['local'];
                    if ($fk != $dependentKey) {
                        continue;
                    }
                    $dependentMult = $foreign[$dependentType]['multiplicity'];
                    $dependentProperty = $foreign[$dependentType]['property'];
                    assert(
                        in_array($dependentMult, $this->multConstraints[$principalMult]),
                        "Cannot pair multiplicities " . $dependentMult . " and " . $principalMult
                    );
                    assert(
                        in_array($principalMult, $this->multConstraints[$dependentMult]),
                        "Cannot pair multiplicities " . $principalMult . " and " . $dependentMult
                    );
                    // generate forward and reverse relations
                    list($forward, $reverse) = $this->calculateRoundTripRelationsGenForwardReverse(
                        $principalType,
                        $principalMult,
                        $principalProperty,
                        $dependentType,
                        $dependentMult,
                        $dependentProperty
                    );
                    // add forward relation
                    $lines[] = $forward;
                    // add reverse relation
                    $lines[] = $reverse;
                }
            }
        }
        return $lines;
    }

    /**
     * @param $hooks
     * @param $lines
     * @param $remix
     */
    private function calculateRoundTripRelationsFirstPass($hooks, &$lines, &$remix)
    {
        foreach ($hooks as $principalType => $value) {
            foreach ($value as $fk => $localRels) {
                foreach ($localRels as $dependentType => $deets) {
                    if (!isset($hooks[$dependentType])) {
                        continue;
                    }
                    $principalMult = $deets['multiplicity'];
                    $principalProperty = $deets['property'];
                    $principalKey = $deets['local'];

                    $foreign = $hooks[$dependentType];
                    $foreign = null != $foreign && isset($foreign[$principalKey]) ? $foreign[$principalKey] : null;

                    if (null != $foreign && isset($foreign[$principalType])) {
                        $foreign = $foreign[$principalType];
                        $dependentMult = $foreign['multiplicity'];
                        $dependentProperty = $foreign['property'];
                        assert(
                            in_array($dependentMult, $this->multConstraints[$principalMult]),
                            "Cannot pair multiplicities " . $dependentMult . " and " . $principalMult
                        );
                        assert(
                            in_array($principalMult, $this->multConstraints[$dependentMult]),
                            "Cannot pair multiplicities " . $principalMult . " and " . $dependentMult
                        );
                        // generate forward and reverse relations
                        list($forward, $reverse) = $this->calculateRoundTripRelationsGenForwardReverse(
                            $principalType,
                            $principalMult,
                            $principalProperty,
                            $dependentType,
                            $dependentMult,
                            $dependentProperty
                        );
                        // add forward relation
                        $lines[] = $forward;
                        // add reverse relation
                        $lines[] = $reverse;
                    } else {
                        if (!isset($remix[$principalType])) {
                            $remix[$principalType] = [];
                        }
                        if (!isset($remix[$principalType][$fk])) {
                            $remix[$principalType][$fk] = [];
                        }
                        if (!isset($remix[$principalType][$fk][$dependentType])) {
                            $remix[$principalType][$fk][$dependentType] = $deets;
                        }
                        assert(isset($remix[$principalType][$fk][$dependentType]));
                    }
                }
            }
        }
    }

    /**
     * @param $principalType
     * @param $principalMult
     * @param $principalProperty
     * @param $dependentType
     * @param $dependentMult
     * @param $dependentProperty
     * @return array
     */
    private function calculateRoundTripRelationsGenForwardReverse(
        $principalType,
        $principalMult,
        $principalProperty,
        $dependentType,
        $dependentMult,
        $dependentProperty
    ) {
        $forward = [
            'principalType' => $principalType,
            'principalMult' => $principalMult,
            'principalProp' => $principalProperty,
            'dependentType' => $dependentType,
            'dependentMult' => $dependentMult,
            'dependentProp' => $dependentProperty
        ];
        $reverse = [
            'principalType' => $dependentType,
            'principalMult' => $dependentMult,
            'principalProp' => $dependentProperty,
            'dependentType' => $principalType,
            'dependentMult' => $principalMult,
            'dependentProp' => $principalProperty
        ];
        return array($forward, $reverse);
    }
}


1		<?php
2
3		namespace AlgoWeb\PODataLaravel\Providers;
4
5		use Illuminate\Support\Facades\App;
6		use Illuminate\Support\ServiceProvider;
7		use Illuminate\Support\Facades\Cache;
8		use POData\Providers\Metadata\IMetadataProvider;
9		use POData\Providers\Metadata\ResourceType;
10		use POData\Providers\Metadata\SimpleMetadataProvider;
11		use Illuminate\Support\Facades\Route;
12		use Illuminate\Support\Facades\Schema as Schema;
13
14		class MetadataProvider extends MetadataBaseProvider
15		{
16		protected $multConstraints = [ '0..1' => ['1'], '1' => ['0..1', ''], '' => ['1', '*']];
17		protected static $METANAMESPACE = "Data";
18
19		/**
20	1	* Bootstrap the application services. Post-boot.
21		*
22	1	* @return void
23		*/
24		public function boot()
25	1	{
26		self::$METANAMESPACE = env('ODataMetaNamespace', 'Data');
27		// If we aren't migrated, there's no DB tables to pull metadata _from_, so bail out early
28	1	try {
29	1	if (!Schema::hasTable('migrations')) {
30		return;
31		}
32		} catch (\Exception $e) {
33		return;
34		}
35
36		$isCaching = true === $this->getIsCaching();
37		$hasCache = Cache::has('metadata');
38
39		if ($isCaching && $hasCache) {
40		$meta = Cache::get('metadata');
41		App::instance('metadata', $meta);
		1 ignored issue – show Bug introduced 2017-03-01 07:39 UTC by Report Bug Copy Issue Report The method `instance()` does not exist on `Illuminate\Support\Facades\App`. Did you maybe mean `clearResolvedInstance()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
42		return;
43		}
44		$meta = App::make('metadata');
45
46		$modelNames = $this->getCandidateModels();
47
48		list($EntityTypes) = $this->getEntityTypesAndResourceSets($meta, $modelNames);
49
50		// need to lift EntityTypes
51		$biDirect = $this->calculateRoundTripRelations();
52
53		// now that endpoints are hooked up, tackle the relationships
54		// if we'd tried earlier, we'd be guaranteed to try to hook a relation up to null, which would be bad
55		foreach ($biDirect as $line) {
56		$principalType = $line['principalType'];
57		$principalMult = $line['principalMult'];
58		$principalProp = $line['principalProp'];
59		$dependentType = $line['dependentType'];
60		$dependentMult = $line['dependentMult'];
61		$dependentProp = $line['dependentProp'];
62		if (!isset($EntityTypes[$principalType])) {
63		continue;
64		}
65		if (!isset($EntityTypes[$dependentType])) {
66		continue;
67		}
68		$principal = $EntityTypes[$principalType];
69		$dependent = $EntityTypes[$dependentType];
70		//many-to-many
71		if ('' == $principalMult && '' == $dependentMult) {
72		$meta->addResourceSetReferencePropertyBidirectional(
73		$principal,
74		$dependent,
75		$principalProp,
76		$dependentProp
77		);
78		continue;
79		}
80		//one-to-one
81		if ('0..1' == $principalMult \|\| '0..1' == $dependentMult) {
82		assert($principalMult != $dependentMult, "Cannot have both ends with 0..1 multiplicity");
83		$meta->addResourceReferenceSinglePropertyBidirectional(
84		$principal,
85		$dependent,
86		$principalProp,
87		$dependentProp
88		);
89		continue;
90		}
91		//principal-one-to-dependent-many
92		if ('*' == $principalMult) {
93		$meta->addResourceReferencePropertyBidirectional(
94		$principal,
95		$dependent,
96		$principalProp,
97		$dependentProp
98		);
99		continue;
100		}
101		//dependent-one-to-principal-many
102		$meta->addResourceReferencePropertyBidirectional(
103		$dependent,
104		$principal,
105		$dependentProp,
106		$principalProp
107		);
108		}
109
110		$key = 'metadata';
111		$this->handlePostBoot($isCaching, $hasCache, $key, $meta);
112		}
113
114		/**
115		* Register the application services. Boot-time only.
116		*
117		* @return void
118		*/
119		public function register()
120		{
121		$this->app->singleton('metadata', function ($app) {
		0 ignored issues – show Unused Code introduced 2016-11-01 11:02 UTC by Report Bug Copy Issue Report The parameter `$app` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
122		return new SimpleMetadataProvider('Data', self::$METANAMESPACE);
123		});
124		}
125
126		/**
127		* @return array
128		*/
129		protected function getCandidateModels()
130		{
131		$Classes = $this->getClassMap();
132		$ends = [];
133		$startName = defined('PODATA_LARAVEL_APP_ROOT_NAMESPACE') ? PODATA_LARAVEL_APP_ROOT_NAMESPACE : "App";
134		foreach ($Classes as $name) {
135		if (\Illuminate\Support\Str::startsWith($name, $startName)) {
136		if (in_array("AlgoWeb\\PODataLaravel\\Models\\MetadataTrait", class_uses($name))) {
137		$ends[] = $name;
138		}
139		}
140		}
141		return $ends;
142		}
143
144		/**
145		* @param $meta
146		* @param $ends
147		* @return array
148		*/
149		protected function getEntityTypesAndResourceSets($meta, $ends)
150		{
151		assert($meta instanceof IMetadataProvider, get_class($meta));
152		$EntityTypes = [];
153		$ResourceSets = [];
154		$begins = [];
155		$numEnds = count($ends);
156
157		for ($i = 0; $i < $numEnds; $i++) {
158		$bitter = $ends[$i];
159		$fqModelName = $bitter;
160
161		$instance = App::make($fqModelName);
162		$name = strtolower($instance->getEndpointName());
163		$metaSchema = $instance->getXmlSchema();
164
165		// if for whatever reason we don't get an XML schema, move on to next entry and drop current one from
166		// further processing
167		if (null == $metaSchema) {
168		continue;
169		}
170		$EntityTypes[$fqModelName] = $metaSchema;
171		$ResourceSets[$fqModelName] = $meta->addResourceSet($name, $metaSchema);
172		$begins[] = $bitter;
173		}
174
175		return array($EntityTypes, $ResourceSets, $begins);
176		}
177
178		public function calculateRoundTripRelations()
179		{
180		$modelNames = $this->getCandidateModels();
181
182		$hooks = [];
183		foreach ($modelNames as $name) {
184		$model = new $name();
185		$rels = $model->getRelationships();
186		// it doesn't matter if a model has no relationships here, that lack will simply be skipped over
187		// during hookup processing
188		$hooks[$name] = $rels;
189		}
190
191		// model relation gubbins are assembled, now the hard bit starts
192		// storing assembled bidirectional relationship schema
193		$rawLines = [];
194		// storing unprocessed relation gubbins for second-pass processing
195		$remix = [];
196		$this->calculateRoundTripRelationsFirstPass($hooks, $rawLines, $remix);
197
198		// now for second processing pass, to pick up stuff that first didn't handle
199		$rawLines = $this->calculateRoundTripRelationsSecondPass($remix, $rawLines);
200
201		// deduplicate rawLines - can't use array_unique as array value elements are themselves arrays
202		$lines = [];
203		foreach ($rawLines as $line) {
204		if (!in_array($line, $lines)) {
205		$lines[] = $line;
206		}
207		}
208
209		return $lines;
210		}
211
212		/**
213		* @param $remix
214		* @param $lines
215		* @return array
216		*/
217		private function calculateRoundTripRelationsSecondPass($remix, $lines)
218		{
219		foreach ($remix as $principalType => $value) {
220		foreach ($value as $fk => $localRels) {
221		foreach ($localRels as $dependentType => $deets) {
222		$principalMult = $deets['multiplicity'];
223		$principalProperty = $deets['property'];
224		$principalKey = $deets['local'];
225
226		if (!isset($remix[$dependentType])) {
227		continue;
228		}
229		$foreign = $remix[$dependentType];
230		if (!isset($foreign[$principalKey])) {
231		continue;
232		}
233		$foreign = $foreign[$principalKey];
234		$dependentKey = $foreign[$dependentType]['local'];
235		if ($fk != $dependentKey) {
236		continue;
237		}
238		$dependentMult = $foreign[$dependentType]['multiplicity'];
239		$dependentProperty = $foreign[$dependentType]['property'];
240		assert(
241		in_array($dependentMult, $this->multConstraints[$principalMult]),
242		"Cannot pair multiplicities " . $dependentMult . " and " . $principalMult
243		);
244		assert(
245		in_array($principalMult, $this->multConstraints[$dependentMult]),
246		"Cannot pair multiplicities " . $principalMult . " and " . $dependentMult
247		);
248		// generate forward and reverse relations
249		list($forward, $reverse) = $this->calculateRoundTripRelationsGenForwardReverse(
250		$principalType,
251		$principalMult,
252		$principalProperty,
253		$dependentType,
254		$dependentMult,
255		$dependentProperty
256		);
257		// add forward relation
258		$lines[] = $forward;
259		// add reverse relation
260		$lines[] = $reverse;
261		}
262		}
263		}
264		return $lines;
265		}
266
267		/**
268		* @param $hooks
269		* @param $lines
270		* @param $remix
271		*/
272		private function calculateRoundTripRelationsFirstPass($hooks, &$lines, &$remix)
273		{
274		foreach ($hooks as $principalType => $value) {
275		foreach ($value as $fk => $localRels) {
276		foreach ($localRels as $dependentType => $deets) {
277		if (!isset($hooks[$dependentType])) {
278		continue;
279		}
280		$principalMult = $deets['multiplicity'];
281		$principalProperty = $deets['property'];
282		$principalKey = $deets['local'];
283
284		$foreign = $hooks[$dependentType];
285		$foreign = null != $foreign && isset($foreign[$principalKey]) ? $foreign[$principalKey] : null;
286
287		if (null != $foreign && isset($foreign[$principalType])) {
288		$foreign = $foreign[$principalType];
289		$dependentMult = $foreign['multiplicity'];
290		$dependentProperty = $foreign['property'];
291		assert(
292		in_array($dependentMult, $this->multConstraints[$principalMult]),
293		"Cannot pair multiplicities " . $dependentMult . " and " . $principalMult
294		);
295		assert(
296		in_array($principalMult, $this->multConstraints[$dependentMult]),
297		"Cannot pair multiplicities " . $principalMult . " and " . $dependentMult
298		);
299		// generate forward and reverse relations
300		list($forward, $reverse) = $this->calculateRoundTripRelationsGenForwardReverse(
301		$principalType,
302		$principalMult,
303		$principalProperty,
304		$dependentType,
305		$dependentMult,
306		$dependentProperty
307		);
308		// add forward relation
309		$lines[] = $forward;
310		// add reverse relation
311		$lines[] = $reverse;
312		} else {
313		if (!isset($remix[$principalType])) {
314		$remix[$principalType] = [];
315		}
316		if (!isset($remix[$principalType][$fk])) {
317		$remix[$principalType][$fk] = [];
318		}
319		if (!isset($remix[$principalType][$fk][$dependentType])) {
320		$remix[$principalType][$fk][$dependentType] = $deets;
321		}
322		assert(isset($remix[$principalType][$fk][$dependentType]));
323		}
324		}
325		}
326		}
327		}
328
329		/**
330		* @param $principalType
331		* @param $principalMult
332		* @param $principalProperty
333		* @param $dependentType
334		* @param $dependentMult
335		* @param $dependentProperty
336		* @return array
337		*/
338		private function calculateRoundTripRelationsGenForwardReverse(
339		$principalType,
340		$principalMult,
341		$principalProperty,
342		$dependentType,
343		$dependentMult,
344		$dependentProperty
345		) {
346		$forward = [
347		'principalType' => $principalType,
348		'principalMult' => $principalMult,
349		'principalProp' => $principalProperty,
350		'dependentType' => $dependentType,
351		'dependentMult' => $dependentMult,
352		'dependentProp' => $dependentProperty
353		];
354		$reverse = [
355		'principalType' => $dependentType,
356		'principalMult' => $dependentMult,
357		'principalProp' => $dependentProperty,
358		'dependentType' => $principalType,
359		'dependentMult' => $principalMult,
360		'dependentProp' => $principalProperty
361		];
362		return array($forward, $reverse);
363		}
364		}
365

Algo-Web / POData-Laravel

Pull Request — master (#50)

MetadataProvider::getEntityTypesAndResourceSets() B

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