Yaml::buildArguments() - Code Metrics - Inspection of "load dependencies from a yaml file" - Innmind/Compose - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( afc25d...fe7998 )

by Baptiste

created 2018-02-03 15:31 UTC

Yaml::buildArguments() A

↳ Parent: Yaml

Complexity

Conditions	2
Paths	2

Size

Total Lines	9
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	9
ccs	5
cts	5
cp	1
rs	9.6666
c	0
b	0
f	0
cc	2
eloc	4
nc	2
nop	1
crap	2

<?php
declare(strict_types = 1);

namespace Innmind\Compose\Loader;

use Innmind\Compose\{
    Loader,
    Loader\PathResolver\Relative,
    Services,
    Arguments,
    Dependencies,
    Definition\Argument,
    Definition\Argument\Types,
    Definition\Name,
    Definition\Service,
    Definition\Service\Arguments as ServiceArguments,
    Definition\Service\Constructors,
    Definition\Dependency,
    Definition\Dependency\Parameter,
    Exception\DomainException
};
use Innmind\Url\{
    PathInterface,
    Path
};
use Innmind\Immutable\{
    Str,
    Stream,
    Map,
    Pair,
    Sequence
};
use Symfony\Component\{
    Yaml\Yaml as Lib,
    OptionsResolver\OptionsResolver
};

final class Yaml implements Loader
{
    private const ARGUMENT_PATTERN = '~^(?<optional>\?)?(?<type>.+)( \?\? \$.+)?$~';
    private const ARGUMENT_DEFAULT_PATTERN = '~( \?\? \$(?<default>.+))$~';
    private const SERVICE_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ](?<constructor>.+)$~"; //split on space or non breaking space
    private const STACK_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ]stack$~"; //split on space or non breaking space
    private const DEPENDENCY_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ](?<path>.+)$~"; //split on space or non breaking space

    private $resolver;
    private $types;
    private $arguments;
    private $constructors;
    private $stacks;

    public function __construct(
        Types $types = null,
        ServiceArguments $arguments = null,
        Constructors $constructors = null,
        PathResolver $pathResolver = null
    ) {
        $this->resolver = new OptionsResolver;
        $this->resolver->setRequired(['expose', 'services']);
        $this->resolver->setDefined(['arguments', 'dependencies']);
        $this->resolver->setAllowedTypes('arguments', 'array');
        $this->resolver->setAllowedTypes('dependencies', 'array');
        $this->resolver->setAllowedTypes('expose', 'array');
        $this->resolver->setAllowedTypes('services', 'array');
        $this->resolver->setDefault('arguments', []);
        $this->resolver->setDefault('dependencies', []);
        $this->types = $types ?? new Types;
        $this->arguments = $arguments ?? new ServiceArguments;
        $this->constructors = $constructors ?? new Constructors;
        $this->resolvePath = $pathResolver ?? new Relative;
        $this->stacks = new Map(Name::class, Sequence::class);
    }

    public function __invoke(PathInterface $definition): Services
    {
        $data = Lib::parseFile((string) $definition);
        $data = $this->resolver->resolve($data);

        $dependencies = $this->buildDependencies(
            $definition,
            $data['dependencies']
        );

        $this->stacks = $this->stacks->clear();

        $arguments = $this->buildArguments($data['arguments']);
        $definitions = $this->buildDefinitions(
            Stream::of('string'),
            $data['services']
        );

        $exposed = Map::of(
            'string',
            'string',
            array_keys($data['expose']),
            array_values($data['expose'])
        );

        $services = new Services(
            $arguments,
            $dependencies,
            ...$definitions->values()
        );
        $services = $this->buildStacks($services);

        return $exposed
            ->map(static function(string $as, string $name): Pair {
                return new Pair(
                    $as,
                    (string) Str::of($name)->substring(1) //remove the $ sign
                );
            })
            ->reduce(
                $services,
                static function(Services $services, string $as, string $name): Services {
                    return $services->expose(
                        new Name($name),
                        new Name($as)
                    );
                }
            );
    }

    private function buildArguments(array $definitions): Arguments
    {
        $arguments = [];

        foreach ($definitions as $name => $type) {
            $arguments[] = $this->buildArgument($name, Str::of($type)->trim());
        }

        return new Arguments(...$arguments);
    }

    private function buildArgument(string $name, Str $type): Argument
    {
        if (!$type->matches(self::ARGUMENT_PATTERN)) {
            throw new DomainException;
        }

        $components = $type->capture(self::ARGUMENT_PATTERN);

        $argument = new Argument(
            new Name($name),
            $this->types->load(
                $components
                    ->get('type')
                    ->pregReplace(
                        self::ARGUMENT_DEFAULT_PATTERN,
                        ''
                    )
            )
        );

        if (
            $components->contains('optional') &&
            !$components->get('optional')->empty()
        ) {
            $argument = $argument->makeOptional();
        }

        if ($type->matches(self::ARGUMENT_DEFAULT_PATTERN)) {
            $argument = $argument->defaultsTo(new Name(
                (string) $type
                    ->capture(self::ARGUMENT_DEFAULT_PATTERN)
                    ->get('default')
            ));
        }

        return $argument;
    }

    private function buildDefinitions(Stream $namespace, array $definitions): Map
    {
        $services = new Map('string', Service::class);

        foreach ($definitions as $key => $value) {
            $key = Str::of($key);

            if (!is_array($value)) {
                throw new DomainException;
            }

            if ($key->matches(self::STACK_NAME)) {
                $this->registerStack($namespace, $key, $value);

                continue;
            }

            if (!$key->matches(self::SERVICE_NAME)) {
                $services = $services->merge(
                    $this->buildDefinitions(
                        $namespace->add((string) $key),
                        $value
                    )
                );

                continue;
            }

            $service = $this->buildService($namespace, $key, $value);
            $services = $services->put(
                (string) $service->name(),
                $service
            );
        }

        return $services;
    }

    private function buildService(
        Stream $namespace,
        Str $name,
        array $arguments
    ): Service {
        $components = $name->capture(self::SERVICE_NAME);

        foreach ($arguments as &$argument) {
            $argument = $this->arguments->load($argument);
        }

        return new Service(
            new Name(
                (string) $namespace
                    ->add((string) $components->get('name'))
                    ->join('.')
            ),
            $this->constructors->load($components->get('constructor')->trim('  ')), //space and non breaking space
            ...$arguments
        );
    }

    private function registerStack(Stream $namespace, Str $key, array $stack): void
    {
        $name = (string) $namespace
            ->add((string) $key->capture(self::STACK_NAME)->get('name'))
            ->join('.');

        $this->stacks = $this->stacks->put(
            new Name($name),
            Sequence::of(...$stack)->map(static function(string $name): Name {
                return new Name(
                    (string) Str::of($name)->substring(1) //remove the $ sign
                );
            })
        );
    }

    private function buildStacks(Services $services): Services
    {
        return $this->stacks->reduce(
            $services,
            function(Services $services, Name $name, Sequence $stack): Services {
                return $services->stack($name, ...$stack);
            }
        );
    }

    private function buildDependencies(
        PathInterface $origin,
        array $dependencies
    ): Dependencies {
        $deps = [];

        foreach ($dependencies as $name => $parameters) {
            $deps[] = $this->buildDependency($origin, $name, $parameters);
        }

        return new Dependencies(...$deps);
    }

    private function buildDependency(
        PathInterface $origin,
        string $name,
        array $parameters
    ): Dependency {
        $name = Str::of($name);

        if (!$name->matches(self::DEPENDENCY_NAME)) {
            throw new DomainException;
        }

        $components = $name->capture(self::DEPENDENCY_NAME);
        $services = $this(($this->resolvePath)(
            $origin,
            new Path((string) $components->get('path'))
        ));
        $params = [];

        foreach ($parameters as $param => $value) {
            $params[] = Parameter::fromValue(new Name($param), $value);
        }

        return new Dependency(
            new Name((string) $components->get('name')),
            $services,
            ...$params
        );
    }
}


1		<?php
2		declare(strict_types = 1);
3
4		namespace Innmind\Compose\Loader;
5
6		use Innmind\Compose\{
7		Loader,
8		Loader\PathResolver\Relative,
9		Services,
10		Arguments,
11		Dependencies,
12		Definition\Argument,
13		Definition\Argument\Types,
14		Definition\Name,
15		Definition\Service,
16		Definition\Service\Arguments as ServiceArguments,
17		Definition\Service\Constructors,
18		Definition\Dependency,
19		Definition\Dependency\Parameter,
20		Exception\DomainException
21		};
22		use Innmind\Url\{
23		PathInterface,
24		Path
25		};
26		use Innmind\Immutable\{
27		Str,
28		Stream,
29		Map,
30		Pair,
31		Sequence
32		};
33		use Symfony\Component\{
34		Yaml\Yaml as Lib,
35		OptionsResolver\OptionsResolver
36		};
37
38		final class Yaml implements Loader
39		{
40		private const ARGUMENT_PATTERN = '~^(?<optional>\?)?(?<type>.+)( \?\? \$.+)?$~';
41		private const ARGUMENT_DEFAULT_PATTERN = '~( \?\? \$(?<default>.+))$~';
42		private const SERVICE_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ](?<constructor>.+)$~"; //split on space or non breaking space
43		private const STACK_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ]stack$~"; //split on space or non breaking space
44		private const DEPENDENCY_NAME = "~^(?<name>[a-zA-Z0-9]+)[\s ](?<path>.+)$~"; //split on space or non breaking space
45
46		private $resolver;
47		private $types;
48		private $arguments;
49		private $constructors;
50		private $stacks;
51
52	3	public function __construct(
53		Types $types = null,
54		ServiceArguments $arguments = null,
55		Constructors $constructors = null,
56		PathResolver $pathResolver = null
57		) {
58	3	$this->resolver = new OptionsResolver;
59	3	$this->resolver->setRequired(['expose', 'services']);
60	3	$this->resolver->setDefined(['arguments', 'dependencies']);
61	3	$this->resolver->setAllowedTypes('arguments', 'array');
62	3	$this->resolver->setAllowedTypes('dependencies', 'array');
63	3	$this->resolver->setAllowedTypes('expose', 'array');
64	3	$this->resolver->setAllowedTypes('services', 'array');
65	3	$this->resolver->setDefault('arguments', []);
66	3	$this->resolver->setDefault('dependencies', []);
67	3	$this->types = $types ?? new Types;
68	3	$this->arguments = $arguments ?? new ServiceArguments;
69	3	$this->constructors = $constructors ?? new Constructors;
70	3	$this->resolvePath = $pathResolver ?? new Relative;
71	3	$this->stacks = new Map(Name::class, Sequence::class);
72	3	}
73
74	2	public function __invoke(PathInterface $definition): Services
75		{
76	2	$data = Lib::parseFile((string) $definition);
77	2	$data = $this->resolver->resolve($data);
78
79	2	$dependencies = $this->buildDependencies(
80	2	$definition,
81	2	$data['dependencies']
82		);
83
84	2	$this->stacks = $this->stacks->clear();
85
86	2	$arguments = $this->buildArguments($data['arguments']);
87	2	$definitions = $this->buildDefinitions(
88	2	Stream::of('string'),
89	2	$data['services']
90		);
91
92	2	$exposed = Map::of(
93	2	'string',
94	2	'string',
95	2	array_keys($data['expose']),
96	2	array_values($data['expose'])
97		);
98
99	2	$services = new Services(
100	2	$arguments,
101	2	$dependencies,
102	2	...$definitions->values()
103		);
104	2	$services = $this->buildStacks($services);
105
106		return $exposed
107	2	->map(static function(string $as, string $name): Pair {
108	2	return new Pair(
109	2	$as,
110	2	(string) Str::of($name)->substring(1) //remove the $ sign
111		);
112	2	})
113	2	->reduce(
114	2	$services,
115	2	static function(Services $services, string $as, string $name): Services {
116	2	return $services->expose(
117	2	new Name($name),
118	2	new Name($as)
119		);
120	2	}
121		);
122		}
123
124	2	private function buildArguments(array $definitions): Arguments
125		{
126	2	$arguments = [];
127
128	2	foreach ($definitions as $name => $type) {
129	2	$arguments[] = $this->buildArgument($name, Str::of($type)->trim());
130		}
131
132	2	return new Arguments(...$arguments);
133		}
134
135	2	private function buildArgument(string $name, Str $type): Argument
136		{
137	2	if (!$type->matches(self::ARGUMENT_PATTERN)) {
138		throw new DomainException;
139		}
140
141	2	$components = $type->capture(self::ARGUMENT_PATTERN);
142
143	2	$argument = new Argument(
144	2	new Name($name),
145	2	$this->types->load(
146		$components
147	2	->get('type')
148	2	->pregReplace(
149	2	self::ARGUMENT_DEFAULT_PATTERN,
150	2	''
151		)
152		)
153		);
154
155		if (
156	2	$components->contains('optional') &&
157	2	!$components->get('optional')->empty()
158		) {
159	2	$argument = $argument->makeOptional();
160		}
161
162	2	if ($type->matches(self::ARGUMENT_DEFAULT_PATTERN)) {
163	2	$argument = $argument->defaultsTo(new Name(
164		(string) $type
165	2	->capture(self::ARGUMENT_DEFAULT_PATTERN)
166	2	->get('default')
167		));
168		}
169
170	2	return $argument;
171		}
172
173	2	private function buildDefinitions(Stream $namespace, array $definitions): Map
174		{
175	2	$services = new Map('string', Service::class);
176
177	2	foreach ($definitions as $key => $value) {
178	2	$key = Str::of($key);
179
180	2	if (!is_array($value)) {
181		throw new DomainException;
182		}
183
184	2	if ($key->matches(self::STACK_NAME)) {
185	2	$this->registerStack($namespace, $key, $value);
186
187	2	continue;
188		}
189
190	2	if (!$key->matches(self::SERVICE_NAME)) {
191	2	$services = $services->merge(
192	2	$this->buildDefinitions(
193	2	$namespace->add((string) $key),
194	2	$value
195		)
196		);
197
198	2	continue;
199		}
200
201	2	$service = $this->buildService($namespace, $key, $value);
202	2	$services = $services->put(
203	2	(string) $service->name(),
204	2	$service
205		);
206		}
207
208	2	return $services;
209		}
210
211	2	private function buildService(
212		Stream $namespace,
213		Str $name,
214		array $arguments
215		): Service {
216	2	$components = $name->capture(self::SERVICE_NAME);
217
218	2	foreach ($arguments as &$argument) {
219	2	$argument = $this->arguments->load($argument);
220		}
221
222	2	return new Service(
223	2	new Name(
224		(string) $namespace
225	2	->add((string) $components->get('name'))
226	2	->join('.')
227		),
228	2	$this->constructors->load($components->get('constructor')->trim(' ')), //space and non breaking space
229	2	...$arguments
230		);
231		}
232
233	2	private function registerStack(Stream $namespace, Str $key, array $stack): void
234		{
235		$name = (string) $namespace
236	2	->add((string) $key->capture(self::STACK_NAME)->get('name'))
237	2	->join('.');
238
239	2	$this->stacks = $this->stacks->put(
240	2	new Name($name),
241	2	Sequence::of(...$stack)->map(static function(string $name): Name {
242	2	return new Name(
243	2	(string) Str::of($name)->substring(1) //remove the $ sign
244		);
245	2	})
246		);
247	2	}
248
249	2	private function buildStacks(Services $services): Services
250		{
251	2	return $this->stacks->reduce(
252	2	$services,
253	2	function(Services $services, Name $name, Sequence $stack): Services {
254	2	return $services->stack($name, ...$stack);
255	2	}
256		);
257		}
258
259	2	private function buildDependencies(
260		PathInterface $origin,
261		array $dependencies
262		): Dependencies {
263	2	$deps = [];
264
265	2	foreach ($dependencies as $name => $parameters) {
266	2	$deps[] = $this->buildDependency($origin, $name, $parameters);
267		}
268
269	2	return new Dependencies(...$deps);
270		}
271
272	2	private function buildDependency(
273		PathInterface $origin,
274		string $name,
275		array $parameters
276		): Dependency {
277	2	$name = Str::of($name);
278
279	2	if (!$name->matches(self::DEPENDENCY_NAME)) {
280		throw new DomainException;
281		}
282
283	2	$components = $name->capture(self::DEPENDENCY_NAME);
284	2	$services = $this(($this->resolvePath)(
285	2	$origin,
286	2	new Path((string) $components->get('path'))
287		));
288	2	$params = [];
289
290	2	foreach ($parameters as $param => $value) {
291	2	$params[] = Parameter::fromValue(new Name($param), $value);
292		}
293
294	2	return new Dependency(
295	2	new Name((string) $components->get('name')),
296	2	$services,
297	2	...$params
298		);
299		}
300		}
301

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Push — develop ( afc25d...fe7998 )

Yaml::buildArguments() A

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