League\Container\Container

Complexity

Total Complexity

19

Size/Duplication

Total Lines	170
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	8

Test Coverage

Coverage

100%

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	9	1
A	add()	0	6	1
A	extend()	0	14	3
A	addServiceProvider()	0	6	1
B	get()	0	21	5
B	has()	0	18	5
A	inflector()	0	4	1
A	delegate()	0	10	2

<?php declare(strict_types=1);

namespace League\Container;

use League\Container\Definition\{DefinitionAggregate, DefinitionInterface, DefinitionAggregateInterface};
use League\Container\Exception\NotFoundException;
use League\Container\Inflector\{InflectorAggregate, InflectorInterface, InflectorAggregateInterface};
use League\Container\ServiceProvider\{ServiceProviderAggregate, ServiceProviderAggregateInterface};
use Psr\Container\ContainerInterface;

class Container implements ContainerInterface
{
    /**
     * @var \League\Container\Definition\DefinitionAggregateInterface
     */
    protected $definitions;

    /**
     * @var \League\Container\ServiceProvider\ServiceProviderAggregateInterface
     */
    protected $providers;

    /**
     * @var \League\Container\Inflector\InflectorAggregateInterface
     */
    protected $inflectors;

    /**
     * @var \Psr\Container\ContainerInterface[]
     */
    protected $delegates = [];

    /**
     * Construct.
     *
     * @param \League\Container\Definition\DefinitionAggregateInterface|null           $definitions
     * @param \League\Container\ServiceProvider\ServiceProviderAggregateInterface|null $providers
     * @param \League\Container\Inflector\InflectorAggregateInterface|null             $inflectors
     */
    public function __construct(
        DefinitionAggregateInterface      $definitions = null,
        ServiceProviderAggregateInterface $providers   = null,
        InflectorAggregateInterface       $inflectors  = null
    ) {
        $this->definitions = $definitions ?? (new DefinitionAggregate)->setContainer($this);
        $this->providers   = $providers   ?? (new ServiceProviderAggregate)->setContainer($this);
        $this->inflectors  = $inflectors  ?? (new InflectorAggregate)->setContainer($this);
    }

    /**
     * Add an item to the container.
     *
     * @param string  $id
     * @param mixed   $concrete
     * @param boolean $shared
     *
     * @return \League\Container\Definition\DefinitionInterface
     */
    public function add(string $id, $concrete = null, bool $shared = false): DefinitionInterface
    {
        $concrete = $concrete ?? $id;

        return $this->definitions->add($id, $concrete, $shared);
    }

    /**
     * Get a definition to extend.
     *
     * @param string $id [description]
     *
     * @return \League\Container\Definition\DefinitionInterface
     */
    public function extend(string $id): DefinitionInterface
    {
        if ($this->providers->provides($id)) {
            $this->providers->register($id);
        }

        if ($this->definitions->has($id)) {
            return $this->definitions->getDefinition($id);
        }

        throw new NotFoundException(
            sprintf('Unable to extend alias (%s) as it is not being managed as a definition', $alias)
        );
    }

    /**
     * Add a service provider.
     *
     * @param \League\Container\ServiceProvider\ServiceProviderInterface|string $provider
     *
     * @return self
     */
    public function addServiceProvider($provider): self
    {
        $this->providers->add($provider);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function get($id, array $args = [], bool $new = false)
    {
        if ($this->definitions->has($id)) {
            $resolved = $this->definitions->resolve($id, $args, $new);
            return $this->inflectors->inflect($resolved);
        }

        if ($this->providers->provides($id)) {
            $this->providers->register($id);
            return $this->get($id, $args, $new);
        }

        foreach ($this->delegates as $delegate) {
            if ($delegate->has($id)) {
                $resolved = $delegate->get($id, $args);
                return $this->inflectors->inflect($resolved);
            }
        }

        throw new NotFoundException(sprintf('Alias (%s) is not being managed by the container or delegates', $id));
    }

    /**
     * {@inheritdoc}
     */
    public function has($id): bool
    {
        if ($this->definitions->has($id)) {
            return true;
        }

        if ($this->providers->provides($id)) {
            return true;
        }

        foreach ($this->delegates as $delegate) {
            if ($delegate->has($id)) {
                return true;
            }
        }

        return false;
    }

    /**
     * Allows for manipulation of specific types on resolution.
     *
     * @param string        $type
     * @param callable|null $callback
     *
     * @return \League\Container\Inflector\InflectorInterface
     */
    public function inflector(string $type, callable $callback = null): InflectorInterface
    {
        return $this->inflectors->add($type, $callback);
    }

    /**
     * Delegate a backup container to be checked for services if it
     * cannot be resolved via this container.
     *
     * @param \Psr\Container\ContainerInterface $container
     *
     * @return self
     */
    public function delegate(ContainerInterface $container): self
    {
        $this->delegates[] = $container;

        if ($container instanceof ContainerAwareInterface) {
            $container->setContainer($this);
        }

        return $this;
    }
}