RouteHandler::handle() - Code Metrics - Inspection of "Enable router to call [class, method] using specif..." - canax/router - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 50f6f9...4cc575 )

by Mikael

created 2018-11-23 22:25 UTC

RouteHandler::handle() C

↳ Parent: RouteHandler

Complexity

Conditions	14
Paths	8

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	22
CRAP Score	14

Importance

Changes

Metric	Value
dl	0
loc	43
ccs	22
cts	22
cp	1
rs	6.2666
c	0
b	0
f	0
cc	14
nc	8
nop	5
crap	14

How to fix Complexity

<?php

namespace Anax\Route;

use Anax\Commons\ContainerInjectableInterface;
use Anax\Route\Exception\ConfigurationException;
use Anax\Route\Exception\NotFoundException;
use Psr\Container\ContainerInterface;

/**
 * Call a routes handler and return the results.
 */
class RouteHandler
{
    /**
     * @var ContainerInterface $di the dependency/service container.
     */
    protected $di;



    /**
     * Handle the action for a route and return the results.
     *
     * @param string                       $method    the request method.
     * @param string                       $path      that was matched.
     * @param string|array                 $action    base for the callable.
     * @param array                        $arguments optional arguments.
     * @param ContainerInjectableInterface $di        container with services.
     *
     * @return mixed as the result from the route handler.
     */
    public function handle(
        string $method = null,
        string $path = null,
        $action,
        array $arguments = [],
        ContainerInterface $di = null
    ) {
        $this->di = $di;

        if (is_null($action)) {
            return;
        }

        if (is_callable($action)) {
            if (is_array($action)
                && is_string($action[0])
                && class_exists($action[0])
            ) {
                $action[] = $arguments;
                return $this->handleAsControllerAction($action);
            }
            return $this->handleAsCallable($action, $arguments);
        }

        if (is_string($action) && class_exists($action)) {
            $callable = $this->isControllerAction($method, $path, $action);
            if ($callable) {
                return $this->handleAsControllerAction($callable);
            }
        }

        if ($di
            && is_array($action)
            && isset($action[0])
            && isset($action[1])
            && is_string($action[0])
        ) {
            // Try to load service from app/di injected container
            return $this->handleUsingDi($action, $arguments, $di);
        }
        
        throw new ConfigurationException("Handler for route does not seem to be a callable action.");
    }



    /**
     * Get  an informative string representing the handler type.
     *
     * @param string|array                 $action    base for the callable.
     * @param ContainerInjectableInterface $di        container with services.
     *
     * @return string as the type of handler.
     */
    public function getHandlerType(
        $action,
        ContainerInterface $di = null
    ) {
        if (is_null($action)) {
            return "null";
        }

        if (is_callable($action)) {
            return "callable";
        }

        if (is_string($action) && class_exists($action)) {
            $callable = $this->isControllerAction(null, null, $action);
            if ($callable) {
                return "controller";
            }
        }

        if ($di
            && is_array($action)
            && isset($action[0])
            && isset($action[1])
            && is_string($action[0])
            && $di->has($action[0])
            && is_callable([$di->get($action[0]), $action[1]])
        ) {
            return "di";
        }

        return "not found";
    }



    /**
     * Check if items can be used to call a controller action, verify
     * that the controller exists, the action has a class-method to call.
     *
     * @param string $method the request method.
     * @param string $path   the matched path, base for the controller action
     *                       and the arguments.
     * @param string $class  the controller class
     *
     * @return array with callable details.
     */
    protected function isControllerAction(
        string $method = null,
        string $path = null,
        string $class
    ) {
        $method = ucfirst(strtolower($method));
        $args = explode("/", $path);
        $action = array_shift($args);
        $action = empty($action) ? "index" : $action;
        $action = str_replace("-", "", $action);
        $action1 = "{$action}Action{$method}";
        $action2 = "{$action}Action";
        $action3 = "catchAll{$method}";
        $action4 = "catchAll";

        foreach ([$action1, $action2] as $target) {

            try {
                $refl = new \ReflectionMethod($class, $target);
                if (!$refl->isPublic()) {
                    throw new NotFoundException("Controller method '$class::$target' is not a public method.");
                }

                return [$class, $target, $args];
            } catch (\ReflectionException $e) {

                ;
            }
        }

        foreach ([$action3, $action4] as $target) {

            try {
                $refl = new \ReflectionMethod($class, $target);
                if (!$refl->isPublic()) {
                    throw new NotFoundException("Controller method '$class::$target' is not a public method.");
                }

                array_unshift($args, $action);
                return [$class, $target, $args];
            } catch (\ReflectionException $e) {

                ;
            }
        }

        return false;
    }



    /**
     * Call the controller action with optional arguments and call
     * initialisation methods if available.
     *
     * @param string $callable with details on what controller action to call.
     *
     * @return mixed result from the handler.
     */
    protected function handleAsControllerAction(array $callable)
    {
        $class = $callable[0];
        $action = $callable[1];
        $args = $callable[2];
        $obj = new $class();

        $refl = new \ReflectionClass($class);
        $diInterface = "Anax\Commons\ContainerInjectableInterface";
        $appInterface = "Anax\Commons\AppInjectableInterface";

        if ($this->di && $refl->implementsInterface($diInterface)) {
            $obj->setDI($this->di);
        } elseif ($this->di && $refl->implementsInterface($appInterface)) {
            if (!$this->di->has("app")) {
                throw new ConfigurationException(
                    "Controller '$class' implements AppInjectableInterface but \$app is not available in \$di."
                );
            }
            $obj->setApp($this->di->get("app"));
        }

        try {
            $refl = new \ReflectionMethod($class, "initialize");
            if ($refl->isPublic()) {
                $obj->initialize();
            }
        } catch (\ReflectionException $e) {

            ;
        }

        $refl = new \ReflectionMethod($obj, $action);
        $paramIsVariadic = false;
        foreach ($refl->getParameters() as $param) {
            if ($param->isVariadic()) {
                $paramIsVariadic = true;
                break;
            }
        }

        if (!$paramIsVariadic
            && $refl->getNumberOfParameters() < count($args)
        ) {
            throw new NotFoundException(
                "Controller '$class' with action method '$action' valid but to many parameters. Got "
                . count($args)
                . ", expected "
                . $refl->getNumberOfParameters() . "."
            );
        }

        try {
            $res = $obj->$action(...$args);
        } catch (\ArgumentCountError $e) {

            throw new NotFoundException($e->getMessage());
        } catch (\TypeError $e) {
            throw new NotFoundException($e->getMessage());
        }

        return $res;
    }



    /**
     * Handle as callable support callables where the method is not static.
     *
     * @param string|array                 $action    base for the callable
     * @param array                        $arguments optional arguments
     * @param ContainerInjectableInterface $di        container with services
/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}
     *
     * @return mixed as the result from the route handler.
     */
    protected function handleAsCallable(
        $action,
        array $arguments
    ) {
        if (is_array($action)
            && isset($action[0])
            && isset($action[1])
            && is_string($action[0])
            && is_string($action[1])
            && class_exists($action[0])
        ) {
            // ["SomeClass", "someMethod"] but not static
            $refl = new \ReflectionMethod($action[0], $action[1]);
            if ($refl->isPublic() && !$refl->isStatic()) {
                $obj = new $action[0]();
                return $obj->{$action[1]}(...$arguments);
            }
        }

        // Add $di to param list, if defined by the callback
        $refl = is_array($action)
            ? new \ReflectionMethod($action[0], $action[1])
            : new \ReflectionFunction($action);
        $params = $refl->getParameters();
        if (isset($params[0]) && $params[0]->getName() === "di") {
            array_unshift($arguments, $this->di);
        }

        return call_user_func($action, ...$arguments);
    }



    /**
     * Load callable as a service from the $di container.
     *
     * @param string|array                 $action    base for the callable
     * @param array                        $arguments optional arguments
     * @param ContainerInjectableInterface $di        container with services
     *
     * @return mixed as the result from the route handler.
     */
    protected function handleUsingDi(
        $action,
        array $arguments,
        ContainerInterface $di
    ) {
        if (!$di->has($action[0])) {
            throw new ConfigurationException("Routehandler '{$action[0]}' not loaded in di.");
        }
    
        $service = $di->get($action[0]);
        if (!is_callable([$service, $action[1]])) {
            throw new ConfigurationException(
                "Routehandler '{$action[0]}' does not have a callable method '{$action[1]}'."
            );
        }
    
        return call_user_func(
            [$service, $action[1]],
            ...$arguments
        );
    }
}


1			<?php
2
3			namespace Anax\Route;
4
5			use Anax\Commons\ContainerInjectableInterface;
6			use Anax\Route\Exception\ConfigurationException;
7			use Anax\Route\Exception\NotFoundException;
8			use Psr\Container\ContainerInterface;
9
10			/**
11			* Call a routes handler and return the results.
12			*/
13			class RouteHandler
14			{
15			/**
16			* @var ContainerInterface $di the dependency/service container.
17			*/
18			protected $di;
19
20
21
22			/**
23			* Handle the action for a route and return the results.
24			*
25			* @param string $method the request method.
26			* @param string $path that was matched.
27			* @param string\|array $action base for the callable.
28			* @param array $arguments optional arguments.
29			* @param ContainerInjectableInterface $di container with services.
30			*
31			* @return mixed as the result from the route handler.
32			*/
33	142		public function handle(
34			string $method = null,
35			string $path = null,
36			$action,
37			array $arguments = [],
38			ContainerInterface $di = null
39			) {
40	142		$this->di = $di;
41
42	142		if (is_null($action)) {
43	1		return;
44			}
45
46	141		if (is_callable($action)) {
47	117		if (is_array($action)
48	117		&& is_string($action[0])
49	117		&& class_exists($action[0])
50			) {
51	2		$action[] = $arguments;
52	2		return $this->handleAsControllerAction($action);
53			}
54	115		return $this->handleAsCallable($action, $arguments);
55			}
56
57	24		if (is_string($action) && class_exists($action)) {
58	20		$callable = $this->isControllerAction($method, $path, $action);
59	19		if ($callable) {
60	18		return $this->handleAsControllerAction($callable);
61			}
62			}
63
64	5		if ($di
65	5		&& is_array($action)
66	5		&& isset($action[0])
67	5		&& isset($action[1])
68	5		&& is_string($action[0])
69			) {
70			// Try to load service from app/di injected container
71	3		return $this->handleUsingDi($action, $arguments, $di);
72			}
73
74	2		throw new ConfigurationException("Handler for route does not seem to be a callable action.");
75			}
76
77
78
79			/**
80			* Get an informative string representing the handler type.
81			*
82			* @param string\|array $action base for the callable.
83			* @param ContainerInjectableInterface $di container with services.
84			*
85			* @return string as the type of handler.
86			*/
87	2		public function getHandlerType(
88			$action,
89			ContainerInterface $di = null
90			) {
91	2		if (is_null($action)) {
92	1		return "null";
93			}
94
95	2		if (is_callable($action)) {
96	1		return "callable";
97			}
98
99	2		if (is_string($action) && class_exists($action)) {
100	1		$callable = $this->isControllerAction(null, null, $action);
101	1		if ($callable) {
102	1		return "controller";
103			}
104			}
105
106	2		if ($di
107	2		&& is_array($action)
108	2		&& isset($action[0])
109	2		&& isset($action[1])
110	2		&& is_string($action[0])
111	2		&& $di->has($action[0])
112	2		&& is_callable([$di->get($action[0]), $action[1]])
113			) {
114	1		return "di";
115			}
116
117	1		return "not found";
118			}
119
120
121
122			/**
123			* Check if items can be used to call a controller action, verify
124			* that the controller exists, the action has a class-method to call.
125			*
126			* @param string $method the request method.
127			* @param string $path the matched path, base for the controller action
128			* and the arguments.
129			* @param string $class the controller class
130			*
131			* @return array with callable details.
132			*/
133	21		protected function isControllerAction(
134			string $method = null,
135			string $path = null,
136			string $class
137			) {
138	21		$method = ucfirst(strtolower($method));
139	21		$args = explode("/", $path);
140	21		$action = array_shift($args);
141	21		$action = empty($action) ? "index" : $action;
142	21		$action = str_replace("-", "", $action);
143	21		$action1 = "{$action}Action{$method}";
144	21		$action2 = "{$action}Action";
145	21		$action3 = "catchAll{$method}";
146	21		$action4 = "catchAll";
147
148	21	View Code Duplication	foreach ([$action1, $action2] as $target) {
			0 ignored issues – show Duplication introduced 2018-11-22 14:23 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
149			try {
150	21		$refl = new \ReflectionMethod($class, $target);
151	16		if (!$refl->isPublic()) {
152	1		throw new NotFoundException("Controller method '$class::$target' is not a public method.");
153			}
154
155	15		return [$class, $target, $args];
156	14		} catch (\ReflectionException $e) {
			0 ignored issues – show Coding Style Comprehensibility introduced 2018-08-07 12:38 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history...
157			;
158			}
159			}
160
161	5	View Code Duplication	foreach ([$action3, $action4] as $target) {
			0 ignored issues – show Duplication introduced 2018-11-22 14:23 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
162			try {
163	5		$refl = new \ReflectionMethod($class, $target);
164	4		if (!$refl->isPublic()) {
165			throw new NotFoundException("Controller method '$class::$target' is not a public method.");
166			}
167
168	4		array_unshift($args, $action);
169	4		return [$class, $target, $args];
170	2		} catch (\ReflectionException $e) {
			0 ignored issues – show Coding Style Comprehensibility introduced 2018-11-22 14:23 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history...
171			;
172			}
173			}
174
175	1		return false;
176			}
177
178
179
180			/**
181			* Call the controller action with optional arguments and call
182			* initialisation methods if available.
183			*
184			* @param string $callable with details on what controller action to call.
185			*
186			* @return mixed result from the handler.
187			*/
188	20		protected function handleAsControllerAction(array $callable)
189			{
190	20		$class = $callable[0];
191	20		$action = $callable[1];
192	20		$args = $callable[2];
193	20		$obj = new $class();
194
195	20		$refl = new \ReflectionClass($class);
196	20		$diInterface = "Anax\Commons\ContainerInjectableInterface";
197	20		$appInterface = "Anax\Commons\AppInjectableInterface";
198
199	20		if ($this->di && $refl->implementsInterface($diInterface)) {
200	1		$obj->setDI($this->di);
201	19		} elseif ($this->di && $refl->implementsInterface($appInterface)) {
202	2		if (!$this->di->has("app")) {
203	1		throw new ConfigurationException(
204	1		"Controller '$class' implements AppInjectableInterface but \$app is not available in \$di."
205			);
206			}
207	1		$obj->setApp($this->di->get("app"));
208			}
209
210			try {
211	19		$refl = new \ReflectionMethod($class, "initialize");
212	12		if ($refl->isPublic()) {
213	12		$obj->initialize();
214			}
215	7		} catch (\ReflectionException $e) {
			0 ignored issues – show Coding Style Comprehensibility introduced 2018-08-08 13:13 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history...
216			;
217			}
218
219	19		$refl = new \ReflectionMethod($obj, $action);
220	19		$paramIsVariadic = false;
221	19		foreach ($refl->getParameters() as $param) {
222	9		if ($param->isVariadic()) {
223	4		$paramIsVariadic = true;
224	9		break;
225			}
226			}
227
228	19		if (!$paramIsVariadic
229	19		&& $refl->getNumberOfParameters() < count($args)
230			) {
231	1		throw new NotFoundException(
232	1		"Controller '$class' with action method '$action' valid but to many parameters. Got "
233	1		. count($args)
234	1		. ", expected "
235	1		. $refl->getNumberOfParameters() . "."
236			);
237			}
238
239			try {
240	18		$res = $obj->$action(...$args);
241	2		} catch (\ArgumentCountError $e) {
			0 ignored issues – show Bug introduced 2018-08-07 12:38 UTC by Report Bug Copy Issue Report The class `ArgumentCountError` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
242	1		throw new NotFoundException($e->getMessage());
243	1		} catch (\TypeError $e) {
244	1		throw new NotFoundException($e->getMessage());
245			}
246
247	16		return $res;
248			}
249
250
251
252			/**
253			* Handle as callable support callables where the method is not static.
254			*
255			* @param string\|array $action base for the callable
256			* @param array $arguments optional arguments
257			* @param ContainerInjectableInterface $di container with services
			0 ignored issues – show Bug introduced 2018-08-07 12:38 UTC by Report Bug Copy Issue Report There is no parameter named `$di`. Was it maybe removed? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. Consider the following example. The parameter `$italy` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $island * @param array $italy */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was removed, but the annotation was not. Loading history...
258			*
259			* @return mixed as the result from the route handler.
260			*/
261	115		protected function handleAsCallable(
262			$action,
263			array $arguments
264			) {
265	115		if (is_array($action)
266	115		&& isset($action[0])
267	115		&& isset($action[1])
268	115		&& is_string($action[0])
269	115		&& is_string($action[1])
270	115		&& class_exists($action[0])
271			) {
272			// ["SomeClass", "someMethod"] but not static
273			$refl = new \ReflectionMethod($action[0], $action[1]);
274			if ($refl->isPublic() && !$refl->isStatic()) {
275			$obj = new $action[0]();
276			return $obj->{$action[1]}(...$arguments);
277			}
278			}
279
280			// Add $di to param list, if defined by the callback
281	115		$refl = is_array($action)
282	1		? new \ReflectionMethod($action[0], $action[1])
283	115		: new \ReflectionFunction($action);
284	115		$params = $refl->getParameters();
285	115		if (isset($params[0]) && $params[0]->getName() === "di") {
286	1		array_unshift($arguments, $this->di);
287			}
288
289	115		return call_user_func($action, ...$arguments);
290			}
291
292
293
294			/**
295			* Load callable as a service from the $di container.
296			*
297			* @param string\|array $action base for the callable
298			* @param array $arguments optional arguments
299			* @param ContainerInjectableInterface $di container with services
300			*
301			* @return mixed as the result from the route handler.
302			*/
303	3		protected function handleUsingDi(
304			$action,
305			array $arguments,
306			ContainerInterface $di
307			) {
308	3		if (!$di->has($action[0])) {
309	1		throw new ConfigurationException("Routehandler '{$action[0]}' not loaded in di.");
310			}
311
312	2		$service = $di->get($action[0]);
313	2		if (!is_callable([$service, $action[1]])) {
314	1		throw new ConfigurationException(
315	1		"Routehandler '{$action[0]}' does not have a callable method '{$action[1]}'."
316			);
317			}
318
319	1		return call_user_func(
320	1		[$service, $action[1]],
321	1		...$arguments
322			);
323			}
324			}
325

canax / router

Push — master ( 50f6f9...4cc575 )

RouteHandler::handle() C

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

Filter issues like