Container::hydrate() - Code Metrics - Inspection of "reworked test classes and adde BroadcasterTrait fo..." - eric-chau/jarvis - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#67)

by Eric

created 2017-05-21 21:37 UTC

Container::hydrate() A

↳ Parent: Container

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	6
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	1

<?php

declare(strict_types=1);

namespace Jarvis\Skill\DependencyInjection;

/**
 * Minimalist dependency injection container
 *
 * @author Eric Chau <[email protected]>
 */
class Container implements \ArrayAccess
{
    protected $locked = [];
    private $aliasOf = [];
    private $factories;
    private $hasAliases = [];
    private $raw = [];
    private $values = [];

    public function __construct()
    {
        $this->factories = new \SplObjectStorage();
    }

    /**
     * Checks if a parameter or an object is defined.
     *
     * @param  string $id the parameter/object identifier to check
     * @return boolean
     */
    public function offsetExists($id): bool
    {
        return in_array($id, $this->keys());
    }

    /**
     * Gets a parameter or an object.
     *
     * @param  string $id the parameter/object identifier
     * @return mixed The requested value
     * @throws \InvalidArgumentException if provided identifier is not defined
     */
    public function offsetGet($id)
    {
        $id = $this->resolveIdentifier($id);
        if (
            isset($this->raw[$id])
            || !is_object($this->values[$id])
            || !method_exists($this->values[$id], '__invoke')
        ) {
            return $this->values[$id];
        }

        if (isset($this->factories[$this->values[$id]])) {
            return $this->values[$id]($this);
        }

        $this->raw[$id] = $this->values[$id];

        return $this->values[$id] = $this->raw[$id]($this);
    }

    /**
     * Sets a parameter or an object.
     *
     * Note that you cannot override locked value, you have to call ::offsetUnset first.
     *
     * @param  string $id the identifier for parameter or object
     * @param  mixed  $v  the value of the parameter or an object
     * @throws \RuntimeException prevents override of locked value
     * @throws \InvalidArgumentException prevents value's identifier to be equal to an existing alias
     */
    public function offsetSet($id, $v): void
    {
        if (isset($this->locked[$id])) {
            throw new \RuntimeException(sprintf('Cannot override locked value "%s".', $id));
        }

        if (isset($this->aliasOf[$id])) {
            throw new \InvalidArgumentException("Value's identifier cannot be equal to existing alias.");
        }

        $this->values[$id] = $v;
    }

    /**
     * Unsets a parameter or an object. It can also unset an alias.
     *
     * Note that if you unset a value it will also unset all its aliases.
     *
     * @param  string $id the identifier of the object/parameter to unset
     */
    public function offsetUnset($id): void
    {
        if (isset($this->values[$id])) {
            if (is_object($this->values[$id])) {
                unset($this->factories[$this->values[$id]]);
            }

            if (isset($this->hasAliases[$id])) {
                foreach ($this->hasAliases[$id] as $alias) {
                    unset($this->aliasOf[$alias]);
                }
            }

            unset($this->values[$id], $this->raw[$id], $this->hasAliases[$id], $this->locked[$id]);
        } else {
            unset($this->aliasOf[$id]);
        }
    }

    /**
     * Adds alias to service's identifier.
     *
     * @param  string $alias the alias to identifier
     * @param  string $id    the identifier to alias
     * @return self
     * @throws InvalidArgumentException if provided identifier is undefined or if alias is
     *                                  equals to identifier
     */
    public function alias(string $alias, string $id): void
    {
        if (!$this->offsetExists($id)) {
            throw new \InvalidArgumentException(sprintf('Cannot create alias for undefined value "%s".', $id));
        }

        if ($alias === $id || array_key_exists($alias, $this->values)) {
            throw new \InvalidArgumentException('Alias cannot be equals to value identifier.');
        }

        $this->aliasOf[$alias] = $id;
        $this->hasAliases[$id] = $this->hasAliases[$id] ?? [];
        $this->hasAliases[$id][] = $alias;
    }

    /**
     * Retrieves parameter and/or object by identifier.
     * this method also support wildcard character (*) in identifier.
     *
     * @param  string $id this identifier can contain one or many wildcard character (*)
     * @return array an array of values that mached with provided identifier pattern
     */
    public function find(string $id): array
    {
        $values = [];
        $pattern = str_replace(['.', '*'], ['\.', '[\w\-\.]*'], $id);
        foreach ($this->keys() as $id) {
            if (1 === preg_match(sprintf('/^%s$/', $pattern), $id)) {
                $values[] = $this->offsetGet($id);
            }
        }

        return $values;
    }

    /**
     * Returns all defined identifiers and aliases.
     *
     * @return array
     */
    public function keys(): array
    {
        return array_merge(array_keys($this->values), array_keys($this->aliasOf));
    }

    /**
     * Add provided service as factory.
     *
     * @param  string $id      the factory identifier
     * @param  mixed  $factory the factory object
     * @return self
     * @throws InvalidArgumentException if provided factory is not a Closure or not an invokable object
     */
    public function factory(string $id, $factory): void
    {
        if (!is_object($factory) || !method_exists($factory, '__invoke')) {
            throw new \InvalidArgumentException('Service factory must be a closure or an invokable object.');
        }

        $this->offsetSet($id, $factory);
        $this->factories->attach($factory);
    }

    /**
     * Locks an object or a parameter so you can not override it until unset() is called.
     *
     * @param  string|array $ids the identifier(s) to lock
     * @return self
     */
    public function lock($ids): void
    {
        foreach ((array) $ids as $id) {
            $this->locked[$this->resolveIdentifier($id)] = true;
        }
    }

    /**
     * @param  ContainerProviderInterface $provider
     * @return self
     */
    public function hydrate(ContainerProviderInterface $provider): Container
    {
        $provider->hydrate($this);


        return $this;
    }

    /**
     * Returns associated identifier if provided argument is an alias.
     *
     * @param  string $id the identifier to convert if needed
     * @return string
     * @throws \InvalidArgumentException if provided identifier is not defined
     */
    private function resolveIdentifier(string $id): string
    {
        if (!$this->offsetExists($id)) {
            throw new \InvalidArgumentException(sprintf('Identifier "%s" is not defined.', $id));
        }

        return $this->aliasOf[$id] ?? $id;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Jarvis\Skill\DependencyInjection;
6
7			/**
8			* Minimalist dependency injection container
9			*
10			* @author Eric Chau <[email protected]>
11			*/
12			class Container implements \ArrayAccess
13			{
14			protected $locked = [];
15			private $aliasOf = [];
16			private $factories;
17			private $hasAliases = [];
18			private $raw = [];
19			private $values = [];
20
21			public function __construct()
22			{
23			$this->factories = new \SplObjectStorage();
24			}
25
26			/**
27			* Checks if a parameter or an object is defined.
28			*
29			* @param string $id the parameter/object identifier to check
30			* @return boolean
31			*/
32			public function offsetExists($id): bool
33			{
34			return in_array($id, $this->keys());
35			}
36
37			/**
38			* Gets a parameter or an object.
39			*
40			* @param string $id the parameter/object identifier
41			* @return mixed The requested value
42			* @throws \InvalidArgumentException if provided identifier is not defined
43			*/
44			public function offsetGet($id)
45			{
46			$id = $this->resolveIdentifier($id);
47			if (
48			isset($this->raw[$id])
49			\|\| !is_object($this->values[$id])
50			\|\| !method_exists($this->values[$id], '__invoke')
51			) {
52			return $this->values[$id];
53			}
54
55			if (isset($this->factories[$this->values[$id]])) {
56			return $this->values[$id]($this);
57			}
58
59			$this->raw[$id] = $this->values[$id];
60
61			return $this->values[$id] = $this->raw[$id]($this);
62			}
63
64			/**
65			* Sets a parameter or an object.
66			*
67			* Note that you cannot override locked value, you have to call ::offsetUnset first.
68			*
69			* @param string $id the identifier for parameter or object
70			* @param mixed $v the value of the parameter or an object
71			* @throws \RuntimeException prevents override of locked value
72			* @throws \InvalidArgumentException prevents value's identifier to be equal to an existing alias
73			*/
74			public function offsetSet($id, $v): void
75			{
76			if (isset($this->locked[$id])) {
77			throw new \RuntimeException(sprintf('Cannot override locked value "%s".', $id));
78			}
79
80			if (isset($this->aliasOf[$id])) {
81			throw new \InvalidArgumentException("Value's identifier cannot be equal to existing alias.");
82			}
83
84			$this->values[$id] = $v;
85			}
86
87			/**
88			* Unsets a parameter or an object. It can also unset an alias.
89			*
90			* Note that if you unset a value it will also unset all its aliases.
91			*
92			* @param string $id the identifier of the object/parameter to unset
93			*/
94			public function offsetUnset($id): void
95			{
96			if (isset($this->values[$id])) {
97			if (is_object($this->values[$id])) {
98			unset($this->factories[$this->values[$id]]);
99			}
100
101			if (isset($this->hasAliases[$id])) {
102			foreach ($this->hasAliases[$id] as $alias) {
103			unset($this->aliasOf[$alias]);
104			}
105			}
106
107			unset($this->values[$id], $this->raw[$id], $this->hasAliases[$id], $this->locked[$id]);
108			} else {
109			unset($this->aliasOf[$id]);
110			}
111			}
112
113			/**
114			* Adds alias to service's identifier.
115			*
116			* @param string $alias the alias to identifier
117			* @param string $id the identifier to alias
118			* @return self
119			* @throws InvalidArgumentException if provided identifier is undefined or if alias is
120			* equals to identifier
121			*/
122			public function alias(string $alias, string $id): void
123			{
124			if (!$this->offsetExists($id)) {
125			throw new \InvalidArgumentException(sprintf('Cannot create alias for undefined value "%s".', $id));
126			}
127
128			if ($alias === $id \|\| array_key_exists($alias, $this->values)) {
129			throw new \InvalidArgumentException('Alias cannot be equals to value identifier.');
130			}
131
132			$this->aliasOf[$alias] = $id;
133			$this->hasAliases[$id] = $this->hasAliases[$id] ?? [];
134			$this->hasAliases[$id][] = $alias;
135			}
136
137			/**
138			* Retrieves parameter and/or object by identifier.
139			* this method also support wildcard character (*) in identifier.
140			*
141			* @param string $id this identifier can contain one or many wildcard character (*)
142			* @return array an array of values that mached with provided identifier pattern
143			*/
144			public function find(string $id): array
145			{
146			$values = [];
147			$pattern = str_replace(['.', ''], ['\.', '[\w\-\.]'], $id);
148			foreach ($this->keys() as $id) {
149			if (1 === preg_match(sprintf('/^%s$/', $pattern), $id)) {
150			$values[] = $this->offsetGet($id);
151			}
152			}
153
154			return $values;
155			}
156
157			/**
158			* Returns all defined identifiers and aliases.
159			*
160			* @return array
161			*/
162			public function keys(): array
163			{
164			return array_merge(array_keys($this->values), array_keys($this->aliasOf));
165			}
166
167			/**
168			* Add provided service as factory.
169			*
170			* @param string $id the factory identifier
171			* @param mixed $factory the factory object
172			* @return self
173			* @throws InvalidArgumentException if provided factory is not a Closure or not an invokable object
174			*/
175			public function factory(string $id, $factory): void
176			{
177			if (!is_object($factory) \|\| !method_exists($factory, '__invoke')) {
178			throw new \InvalidArgumentException('Service factory must be a closure or an invokable object.');
179			}
180
181			$this->offsetSet($id, $factory);
182			$this->factories->attach($factory);
183			}
184
185			/**
186			* Locks an object or a parameter so you can not override it until unset() is called.
187			*
188			* @param string\|array $ids the identifier(s) to lock
189			* @return self
190			*/
191			public function lock($ids): void
192			{
193			foreach ((array) $ids as $id) {
194			$this->locked[$this->resolveIdentifier($id)] = true;
195			}
196			}
197
198			/**
199			* @param ContainerProviderInterface $provider
200			* @return self
201			*/
202			public function hydrate(ContainerProviderInterface $provider): Container
203			{
204			$provider->hydrate($this);
			0 ignored issues – show Compatibility introduced 2017-05-21 21:40 UTC by Report Bug Copy Issue Report `$this` of type `object<Jarvis\Skill\Depe...ncyInjection\Container>` is not a sub-type of `object<Jarvis\Jarvis>`. It seems like you assume a child class of the class `Jarvis\Skill\DependencyInjection\Container` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
205
206			return $this;
207			}
208
209			/**
210			* Returns associated identifier if provided argument is an alias.
211			*
212			* @param string $id the identifier to convert if needed
213			* @return string
214			* @throws \InvalidArgumentException if provided identifier is not defined
215			*/
216			private function resolveIdentifier(string $id): string
217			{
218			if (!$this->offsetExists($id)) {
219			throw new \InvalidArgumentException(sprintf('Identifier "%s" is not defined.', $id));
220			}
221
222			return $this->aliasOf[$id] ?? $id;
223			}
224			}
225

eric-chau / jarvis

Pull Request — master (#67)

Container::hydrate() A

Complexity

Size

Duplication

Importance

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