Container::has() - Code Metrics - Inspection of "support psr11" - slince/di - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 1e2100...b879f8 )

by Taosikai

created 2017-05-25 08:45 UTC

Container::has() A

↳ Parent: Container

Complexity

Conditions	4
Paths	3

Size

Total Lines	10
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	10
rs	9.2
c	0
b	0
f	0
cc	4
eloc	6
nc	3
nop	1

<?php
/**
 * slince dependency injection component
 * @author Tao <[email protected]>
 */
namespace Slince\Di;

use Psr\Container\ContainerInterface;
use Slince\Di\Exception\ConfigException;
use Slince\Di\Exception\DependencyInjectionException;
use Slince\Di\Exception\NotFoundException;

class Container implements ContainerInterface
{
    /**
     * Array of singletons
     * @var array
     */
    protected $shares = [];

    /**
     * Array pf definitions, support instance,callable,Definition, class
     * @var array
     */
    protected $definitions = [];

    /**
     * Array of interface bindings
     * @var array
     */
    protected $contextBindings = [];

    /**
     * Array of parameters
     * @var ParameterStore
     */
    protected $parameters;

    /**
     * @var ClassDefinitionResolver
     */
    protected $classDefinitionResolver;

    public function __construct()
    {
        $this->parameters = new ParameterStore();
    }

    /**
     * Add a Definition class
     * @param string $name
     * @param string $class
     * @return ClassDefinition
     */
    public function define($name, $class)
    {
        $definition = new ClassDefinition($class);
        $this->definitions[$name] = $definition;
        return $definition;
    }

    /**
     * Bind an callable to the container with its name
     * @param string $name
     * @param mixed $creation A invalid callable
     * @throws ConfigException
     * @return $this
     */
    public function call($name, $creation)
    {
        if (!is_callable($creation)) {
            throw new ConfigException(sprintf("Delegate expects a valid callable or executable class::method string at Argument 2"));
        }
        $this->definitions[$name] = $creation;
        return $this;
    }

    /**
     * Bind an instance to the container with its name
     * ```
     * $container->instance('user', new User());
     * //Or just give instance
     * $container->instance(new User());
     *
     * ```
     * @param string $name
     * @param object $instance
     * @throws ConfigException
     * @return $this
     */
    public function instance($name, $instance = null)
    {
        if (func_num_args() == 1) {
            if (!is_object($name)) {
                throw new ConfigException(sprintf("Instance expects a valid object"));
            }
            $instance = $name;
            $name = get_class($instance);
        }
        $this->definitions[$name] = $instance;
        $this->share($name);
        return $this;
    }

    /**
     * Binds an interface or abstract class to its implementation;
     * It's also be used to bind a service name to an existing class
     * @param string $name
     * @param string $implementation
     * @param string|array $context the specified context to bind
     * @throws ConfigException
     * @return $this
     */
    public function bind($name, $implementation, $context = null)
    {
        if (is_null($context)) {
            $this->define($name, $implementation);
        } else {
            if (is_array($context)) {
                list($contextClass, $contextMethod) = $context;
            } elseif (strpos($context, '::') !== false) {
                list($contextClass, $contextMethod) = explode('::', $context);
            } else {
                $contextClass = $context;
                $contextMethod = 'general';
            }
            isset($this->contextBindings[$contextClass][$contextMethod])
                || ($this->contextBindings[$contextClass][$contextMethod] = []);
            $this->contextBindings[$contextClass][$contextMethod][$name] = $implementation;
        }
        return $this;
    }

    /**
     * Add a definition to the container
     * ```
     * //Add an instance like "instance" method
     * $container->set('student', new Student());
     *
     * //Add a callable definition
     * $container->set('student', 'StudentFactory::create');
     * $container->set('student', function(){
     *     return new Student();
     * });
     *
     * //Add an instance of "Slince\Di\Definition"
     * $container->set('student', new Definition('Foo\Bar\StudentClass', [
     *      'gender' => 'boy',
     *      'school' => new Reference('school')
     * ], [
     *     'setAge' => [18]
     * ], [
     *     'father' => 'James',
     *     'mather' => 'Sophie'
     * ]));
     *
     * //Add a class definition
     * $container->set('student', Foo\Bar\StudentClass);
     * ```
     * @param string $name
     * @param mixed $definition
     * @throws ConfigException
     * @return $this
     */
    public function set($name, $definition)
    {
        if (is_callable($definition)) {
            $this->call($name, $definition);
        } elseif (is_object($definition)) {
            $this->instance($name, $definition);
        } elseif (is_string($definition)) {
            $this->define($name, $definition);
        } else {
            throw new ConfigException(sprintf("Unexpected object definition type '%s'", gettype($definition)));
        }
        return $this;
    }

    /**
     * Share the service by given name
     * @param string $name
     * @return $this
     */
    public function share($name)
    {
        $this->shares[$name] = null;
        return $this;
    }

    /**
     * Get a service instance by specified name
     * @param string $name
     * @param array $arguments
     * @return object
     */
    public function get($name, $arguments = [])
    {
        //If service is singleton, return instance directly.
        if (isset($this->shares[$name])) {
            return $this->shares[$name];
        }
        //If there is no matching definition, creates an definition automatically
        if (!isset($this->definitions[$name])) {
            if (class_exists($name)) {
                $this->bind($name, $name);
            } else {
                throw new NotFoundException(sprintf('There is no definition for "%s"', $name));
            }
        }
        $instance = $this->createInstanceFromDefinition($this->definitions[$name], $arguments);
        //If the service be set as singleton mode, stores its instance
        if (array_key_exists($name, $this->shares)) {
            $this->shares[$name] = $instance;
        }
        return $instance;
    }

    /**
     * {@inheritdoc}
     */
    public function has($name)
    {
        if (isset($this->shares[$name])) {
            return true;
        }
        if (!isset($this->definitions[$name]) && class_exists($name)) {
            $this->bind($name, $name);
        }
        return isset($this->definitions[$name]);
    }

    /**
     * Gets all global parameters
     * @return array
     */
    public function getParameters()
    {
        return $this->parameters->toArray();
    }

    /**
     * Sets array of parameters
     * @param array $parameterStore
     */
    public function setParameters(array $parameterStore)
    {
        $this->parameters->setParameters($parameterStore);
    }

    /**
     * Add some parameters
     * @param array $parameters
     */
    public function addParameters(array $parameters)
    {
        $this->parameters->addParameters($parameters);
    }

    /**
     * Sets a parameter with its name and value
     * @param $name
     * @param mixed $value
     */
    public function setParameter($name, $value)
    {
        $this->parameters->setParameter($name, $value);
    }

    /**
     * Gets a parameter by given name
     * @param $name
     * @param mixed $default
     * @return mixed
     */
    public function getParameter($name, $default = null)
    {
        return $this->parameters->getParameter($name, $default);
    }

    /**
     * Resolves all arguments for the function or method.
     * @param \ReflectionFunctionAbstract $method
     * @param array $arguments
     * @param array $contextBindings The context bindings for the function
     * @throws DependencyInjectionException
     * @return array
     */
    public function resolveFunctionArguments(\ReflectionFunctionAbstract $method, array $arguments, array $contextBindings = [])
    {
        $functionArguments = [];
        $arguments = $this->resolveParameters($arguments);
        //Checks whether the position is numeric
        $isNumeric = !empty($arguments) && is_numeric(key($arguments));
        foreach ($method->getParameters() as $parameter) {
            $index = $isNumeric ? $parameter->getPosition() : $parameter->name;
            //If the dependency is provided directly
            if (isset($arguments[$index])) {
                $functionArguments[] = $arguments[$index];
            } elseif (($dependency = $parameter->getClass()) != null) {
                $dependencyName = $dependency->name;
                //Use the new dependency if the dependency name has been replaced in array of context bindings
                isset($contextBindings[$dependencyName]) && $dependencyName = $contextBindings[$dependencyName];
                try {
                    $functionArguments[] = $this->get($dependencyName);
                } catch (DependencyInjectionException $exception) {
                    if ($parameter->isOptional()) {
                        $functionArguments[] = $parameter->getDefaultValue();
                    } else {
                        throw $exception;
                    }
                }
            } elseif ($parameter->isOptional()) {
                $functionArguments[] = $parameter->getDefaultValue();
            } else {
                throw new DependencyInjectionException(sprintf(
                    'Missing required parameter "%s" when calling "%s"',
                    $parameter->name,
                    $method->getName()
                ));
            }
        }
        return $functionArguments;
    }

    /**
     * Gets all context bindings for the class and method
     * [
     *     'User' => [
     *          'original' => 'SchoolInterface'
     *          'bind' => 'MagicSchool',
     *     ]
     * ]
     * @param string $contextClass
     * @param string $contextMethod
     * @return array
     */
    public function getContextBindings($contextClass, $contextMethod)
    {
        if (!isset($this->contextBindings[$contextClass])) {
            return [];
        }
        $contextBindings = isset($this->contextBindings[$contextClass]['general'])
            ? $this->contextBindings[$contextClass]['general'] : [];
        if (isset($this->contextBindings[$contextClass][$contextMethod])) {
            $contextBindings = array_merge($contextBindings, $this->contextBindings[$contextClass][$contextMethod]);
        }
        return $contextBindings;
    }

    protected function createInstanceFromDefinition($definition, array $arguments)
    {
        if (is_callable($definition)) {
            if ($arguments && ($definition instanceof \Closure || is_string($definition))) {

                $arguments['container'] = $this;
                $arguments = $this->resolveFunctionArguments(
                    new \ReflectionFunction($definition),
                    $arguments
                );
            }
            $arguments = $arguments ?: [$this];
            $instance = call_user_func_array($definition, $arguments);
        } elseif ($definition instanceof ClassDefinition) {
            $instance = $this->getClassDefinitionResolver()->resolve($definition, $arguments);
        } elseif (is_object($definition)) {
            $instance = $definition;
        } else {
            throw new ConfigException(sprintf("Unexpected object definition type '%s'", gettype($definition)));
        }
        return $instance;
    }

    protected function getClassDefinitionResolver()
    {
        if (!is_null($this->classDefinitionResolver)) {
            return $this->classDefinitionResolver;
        }
        return $this->classDefinitionResolver = new ClassDefinitionResolver($this);
    }

    /**
     * Resolves array of parameters
     * @param array $parameters
     * @return array
     */
    protected function resolveParameters($parameters)
    {
        return array_map(function ($parameter) {
            if (is_string($parameter)) {
                $parameter = $this->formatParameter($parameter);
            } elseif ($parameter instanceof Reference) {
                $parameter = $this->get($parameter->getName());
            } elseif (is_array($parameter)) {
                $parameter = $this->resolveParameters($parameter);
            }
            return $parameter;
        }, $parameters);
    }

    /**
     * Formats parameter value
     * @param $value
     * @return mixed
     * @throws DependencyInjectionException
     */
    protected function formatParameter($value)
    {
        //%xx% return the parameter
        if (preg_match("#^%([^%\s]+)%$#", $value, $match)) {
            $key = $match[1];
            if ($parameter = $this->parameters->getParameter($key)) {
                return $parameter;
            }
            throw new DependencyInjectionException(sprintf("Parameter [%s] is not defined", $key));
        }
        //"fool%bar%baz"
        return preg_replace_callback("#%([^%\s]+)%#", function ($matches) {
            $key = $matches[1];
            if ($parameter = $this->parameters->getParameter($key)) {
                return $parameter;
            }
            throw new DependencyInjectionException(sprintf("Parameter [%s] is not defined", $key));
        }, $value);
    }
}


1			<?php
2			/**
3			* slince dependency injection component
4			* @author Tao <[email protected]>
5			*/
6			namespace Slince\Di;
7
8			use Psr\Container\ContainerInterface;
9			use Slince\Di\Exception\ConfigException;
10			use Slince\Di\Exception\DependencyInjectionException;
11			use Slince\Di\Exception\NotFoundException;
12
13			class Container implements ContainerInterface
14			{
15			/**
16			* Array of singletons
17			* @var array
18			*/
19			protected $shares = [];
20
21			/**
22			* Array pf definitions, support instance,callable,Definition, class
23			* @var array
24			*/
25			protected $definitions = [];
26
27			/**
28			* Array of interface bindings
29			* @var array
30			*/
31			protected $contextBindings = [];
32
33			/**
34			* Array of parameters
35			* @var ParameterStore
36			*/
37			protected $parameters;
38
39			/**
40			* @var ClassDefinitionResolver
41			*/
42			protected $classDefinitionResolver;
43
44			public function __construct()
45			{
46			$this->parameters = new ParameterStore();
47			}
48
49			/**
50			* Add a Definition class
51			* @param string $name
52			* @param string $class
53			* @return ClassDefinition
54			*/
55			public function define($name, $class)
56			{
57			$definition = new ClassDefinition($class);
58			$this->definitions[$name] = $definition;
59			return $definition;
60			}
61
62			/**
63			* Bind an callable to the container with its name
64			* @param string $name
65			* @param mixed $creation A invalid callable
66			* @throws ConfigException
67			* @return $this
68			*/
69			public function call($name, $creation)
70			{
71			if (!is_callable($creation)) {
72			throw new ConfigException(sprintf("Delegate expects a valid callable or executable class::method string at Argument 2"));
73			}
74			$this->definitions[$name] = $creation;
75			return $this;
76			}
77
78			/**
79			* Bind an instance to the container with its name
80			* ```
81			* $container->instance('user', new User());
82			* //Or just give instance
83			* $container->instance(new User());
84			*
85			* ```
86			* @param string $name
87			* @param object $instance
88			* @throws ConfigException
89			* @return $this
90			*/
91			public function instance($name, $instance = null)
92			{
93			if (func_num_args() == 1) {
94			if (!is_object($name)) {
95			throw new ConfigException(sprintf("Instance expects a valid object"));
96			}
97			$instance = $name;
98			$name = get_class($instance);
99			}
100			$this->definitions[$name] = $instance;
101			$this->share($name);
102			return $this;
103			}
104
105			/**
106			* Binds an interface or abstract class to its implementation;
107			* It's also be used to bind a service name to an existing class
108			* @param string $name
109			* @param string $implementation
110			* @param string\|array $context the specified context to bind
111			* @throws ConfigException
112			* @return $this
113			*/
114			public function bind($name, $implementation, $context = null)
115			{
116			if (is_null($context)) {
117			$this->define($name, $implementation);
118			} else {
119			if (is_array($context)) {
120			list($contextClass, $contextMethod) = $context;
121			} elseif (strpos($context, '::') !== false) {
122			list($contextClass, $contextMethod) = explode('::', $context);
123			} else {
124			$contextClass = $context;
125			$contextMethod = 'general';
126			}
127			isset($this->contextBindings[$contextClass][$contextMethod])
128			\|\| ($this->contextBindings[$contextClass][$contextMethod] = []);
129			$this->contextBindings[$contextClass][$contextMethod][$name] = $implementation;
130			}
131			return $this;
132			}
133
134			/**
135			* Add a definition to the container
136			* ```
137			* //Add an instance like "instance" method
138			* $container->set('student', new Student());
139			*
140			* //Add a callable definition
141			* $container->set('student', 'StudentFactory::create');
142			* $container->set('student', function(){
143			* return new Student();
144			* });
145			*
146			* //Add an instance of "Slince\Di\Definition"
147			* $container->set('student', new Definition('Foo\Bar\StudentClass', [
148			* 'gender' => 'boy',
149			* 'school' => new Reference('school')
150			* ], [
151			* 'setAge' => [18]
152			* ], [
153			* 'father' => 'James',
154			* 'mather' => 'Sophie'
155			* ]));
156			*
157			* //Add a class definition
158			* $container->set('student', Foo\Bar\StudentClass);
159			* ```
160			* @param string $name
161			* @param mixed $definition
162			* @throws ConfigException
163			* @return $this
164			*/
165			public function set($name, $definition)
166			{
167			if (is_callable($definition)) {
168			$this->call($name, $definition);
169			} elseif (is_object($definition)) {
170			$this->instance($name, $definition);
171			} elseif (is_string($definition)) {
172			$this->define($name, $definition);
173			} else {
174			throw new ConfigException(sprintf("Unexpected object definition type '%s'", gettype($definition)));
175			}
176			return $this;
177			}
178
179			/**
180			* Share the service by given name
181			* @param string $name
182			* @return $this
183			*/
184			public function share($name)
185			{
186			$this->shares[$name] = null;
187			return $this;
188			}
189
190			/**
191			* Get a service instance by specified name
192			* @param string $name
193			* @param array $arguments
194			* @return object
195			*/
196			public function get($name, $arguments = [])
197			{
198			//If service is singleton, return instance directly.
199			if (isset($this->shares[$name])) {
200			return $this->shares[$name];
201			}
202			//If there is no matching definition, creates an definition automatically
203			if (!isset($this->definitions[$name])) {
204			if (class_exists($name)) {
205			$this->bind($name, $name);
206			} else {
207			throw new NotFoundException(sprintf('There is no definition for "%s"', $name));
208			}
209			}
210			$instance = $this->createInstanceFromDefinition($this->definitions[$name], $arguments);
211			//If the service be set as singleton mode, stores its instance
212			if (array_key_exists($name, $this->shares)) {
213			$this->shares[$name] = $instance;
214			}
215			return $instance;
216			}
217
218			/**
219			* {@inheritdoc}
220			*/
221			public function has($name)
222			{
223			if (isset($this->shares[$name])) {
224			return true;
225			}
226			if (!isset($this->definitions[$name]) && class_exists($name)) {
227			$this->bind($name, $name);
228			}
229			return isset($this->definitions[$name]);
230			}
231
232			/**
233			* Gets all global parameters
234			* @return array
235			*/
236			public function getParameters()
237			{
238			return $this->parameters->toArray();
239			}
240
241			/**
242			* Sets array of parameters
243			* @param array $parameterStore
244			*/
245			public function setParameters(array $parameterStore)
246			{
247			$this->parameters->setParameters($parameterStore);
248			}
249
250			/**
251			* Add some parameters
252			* @param array $parameters
253			*/
254			public function addParameters(array $parameters)
255			{
256			$this->parameters->addParameters($parameters);
257			}
258
259			/**
260			* Sets a parameter with its name and value
261			* @param $name
262			* @param mixed $value
263			*/
264			public function setParameter($name, $value)
265			{
266			$this->parameters->setParameter($name, $value);
267			}
268
269			/**
270			* Gets a parameter by given name
271			* @param $name
272			* @param mixed $default
273			* @return mixed
274			*/
275			public function getParameter($name, $default = null)
276			{
277			return $this->parameters->getParameter($name, $default);
278			}
279
280			/**
281			* Resolves all arguments for the function or method.
282			* @param \ReflectionFunctionAbstract $method
283			* @param array $arguments
284			* @param array $contextBindings The context bindings for the function
285			* @throws DependencyInjectionException
286			* @return array
287			*/
288			public function resolveFunctionArguments(\ReflectionFunctionAbstract $method, array $arguments, array $contextBindings = [])
289			{
290			$functionArguments = [];
291			$arguments = $this->resolveParameters($arguments);
292			//Checks whether the position is numeric
293			$isNumeric = !empty($arguments) && is_numeric(key($arguments));
294			foreach ($method->getParameters() as $parameter) {
295			$index = $isNumeric ? $parameter->getPosition() : $parameter->name;
296			//If the dependency is provided directly
297			if (isset($arguments[$index])) {
298			$functionArguments[] = $arguments[$index];
299			} elseif (($dependency = $parameter->getClass()) != null) {
300			$dependencyName = $dependency->name;
301			//Use the new dependency if the dependency name has been replaced in array of context bindings
302			isset($contextBindings[$dependencyName]) && $dependencyName = $contextBindings[$dependencyName];
303			try {
304			$functionArguments[] = $this->get($dependencyName);
305			} catch (DependencyInjectionException $exception) {
306			if ($parameter->isOptional()) {
307			$functionArguments[] = $parameter->getDefaultValue();
308			} else {
309			throw $exception;
310			}
311			}
312			} elseif ($parameter->isOptional()) {
313			$functionArguments[] = $parameter->getDefaultValue();
314			} else {
315			throw new DependencyInjectionException(sprintf(
316			'Missing required parameter "%s" when calling "%s"',
317			$parameter->name,
318			$method->getName()
319			));
320			}
321			}
322			return $functionArguments;
323			}
324
325			/**
326			* Gets all context bindings for the class and method
327			* [
328			* 'User' => [
329			* 'original' => 'SchoolInterface'
330			* 'bind' => 'MagicSchool',
331			* ]
332			* ]
333			* @param string $contextClass
334			* @param string $contextMethod
335			* @return array
336			*/
337			public function getContextBindings($contextClass, $contextMethod)
338			{
339			if (!isset($this->contextBindings[$contextClass])) {
340			return [];
341			}
342			$contextBindings = isset($this->contextBindings[$contextClass]['general'])
343			? $this->contextBindings[$contextClass]['general'] : [];
344			if (isset($this->contextBindings[$contextClass][$contextMethod])) {
345			$contextBindings = array_merge($contextBindings, $this->contextBindings[$contextClass][$contextMethod]);
346			}
347			return $contextBindings;
348			}
349
350			protected function createInstanceFromDefinition($definition, array $arguments)
351			{
352			if (is_callable($definition)) {
353			if ($arguments && ($definition instanceof \Closure \|\| is_string($definition))) {
			0 ignored issues – show Bug Best Practice introduced 2017-05-25 09:00 UTC by Report Bug Copy Issue Report The expression `$arguments` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
354			$arguments['container'] = $this;
355			$arguments = $this->resolveFunctionArguments(
356			new \ReflectionFunction($definition),
357			$arguments
358			);
359			}
360			$arguments = $arguments ?: [$this];
361			$instance = call_user_func_array($definition, $arguments);
362			} elseif ($definition instanceof ClassDefinition) {
363			$instance = $this->getClassDefinitionResolver()->resolve($definition, $arguments);
364			} elseif (is_object($definition)) {
365			$instance = $definition;
366			} else {
367			throw new ConfigException(sprintf("Unexpected object definition type '%s'", gettype($definition)));
368			}
369			return $instance;
370			}
371
372			protected function getClassDefinitionResolver()
373			{
374			if (!is_null($this->classDefinitionResolver)) {
375			return $this->classDefinitionResolver;
376			}
377			return $this->classDefinitionResolver = new ClassDefinitionResolver($this);
378			}
379
380			/**
381			* Resolves array of parameters
382			* @param array $parameters
383			* @return array
384			*/
385			protected function resolveParameters($parameters)
386			{
387			return array_map(function ($parameter) {
388			if (is_string($parameter)) {
389			$parameter = $this->formatParameter($parameter);
390			} elseif ($parameter instanceof Reference) {
391			$parameter = $this->get($parameter->getName());
392			} elseif (is_array($parameter)) {
393			$parameter = $this->resolveParameters($parameter);
394			}
395			return $parameter;
396			}, $parameters);
397			}
398
399			/**
400			* Formats parameter value
401			* @param $value
402			* @return mixed
403			* @throws DependencyInjectionException
404			*/
405			protected function formatParameter($value)
406			{
407			//%xx% return the parameter
408			if (preg_match("#^%([^%\s]+)%$#", $value, $match)) {
409			$key = $match[1];
410			if ($parameter = $this->parameters->getParameter($key)) {
411			return $parameter;
412			}
413			throw new DependencyInjectionException(sprintf("Parameter [%s] is not defined", $key));
414			}
415			//"fool%bar%baz"
416			return preg_replace_callback("#%([^%\s]+)%#", function ($matches) {
417			$key = $matches[1];
418			if ($parameter = $this->parameters->getParameter($key)) {
419			return $parameter;
420			}
421			throw new DependencyInjectionException(sprintf("Parameter [%s] is not defined", $key));
422			}, $value);
423			}
424			}
425

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Container::has() A

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