ClassAutoBind::dispatchRoute() - Code Metrics - Inspection of "Merge develop branch (#1)" - kambo-1st/KamboRouter - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Branch — master (32ad63)

by Bohuslav

created 2017-07-06 17:24 UTC

ClassAutoBind::dispatchRoute() B

↳ Parent: ClassAutoBind

Complexity

Conditions	3
Paths	2

Size

Total Lines	39
Code Lines	23

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes

Metric	Value
dl	0
loc	39
c	0
b	0
f	0
ccs	0
cts	23
cp	0
rs	8.8571
cc	3
eloc	23
nc	2
nop	2
crap	12

<?php
declare(strict_types=1);

namespace Kambo\Router\Dispatcher;

// \Spl
use ReflectionMethod;

// \Kambo\Router
use Kambo\Router\Dispatcher;
use Kambo\Router\Route\Route\Parsed;

/**
 * Class dispatcher with module/controller/action support
 *
 * @package Kambo\Router\Dispatcher
 * @author  Bohuslav Simek <[email protected]>
 * @license MIT
 */
class ClassAutoBind implements Dispatcher
{
    /**
     * Not found handler which will be called if nothing has been found.
     *
     * @var mixed
     */
    private $notFoundHandler;

    /**
     * Base namespace for all dispatched classes.
     *
     * @var string
     */
    private $baseNamespace = null;

    /**
     * Name of class that will be used for constructing a namespace for proper
     * class resolve.
     *
     * @var string
     */
    private $controllerName = 'Controllers';

    /**
     * Name of module that will be used for constructing a namespace for proper
     * class resolve.
     *
     * @var string
     */
    private $moduleName = 'Modules';

    /**
     * Prefix for action method.
     * Target method is allways called with this prefix.
     *
     * @var string
     */
    private $actionName = 'action';

    /**
     * Dispatch found route with given parameters
     *
     * @param \Kambo\Router\Route\Route\Parsed $route      Instance of found and parsed route.
     * @param array                            $parameters Additional parameters.
     *
     * @return mixed
     */
    public function dispatchRoute(Parsed $route, array $parameters = [])
    {
        $handler = $route->getHandler();
        if (isset($handler['controler']) && isset($handler['action'])) {
            $routePlaceholders             = $route->getPlaceholders();
            list($controllerName, $action) = $this->resolveControlerAction(
                $route->getParameters(),
                $routePlaceholders,
                $handler
            );

            // Create instance of target class
            $controller = new $controllerName();
            // Create class method name with prefix
            $methodName = $this->actionName.$action;

            $parameterMap = $this->getMethodParameters(
                $controllerName,
                $methodName
            );

            $methodParameters = $this->getFunctionArgumentsControlers(
                $parameterMap,
                $route->getParameters(),
                $routePlaceholders,
                $handler
            );

            return call_user_func_array(
                [
                    $controller,
                    $methodName
                ],
                $methodParameters
            );
        }

        return $this->dispatchNotFound();
    }

    /**
     * Called if any of route did not match the request.
     *
     * @return mixed
     */
    public function dispatchNotFound()
    {
        if (isset($this->notFoundHandler)) {
            $notFoundHandler = $this->notFoundHandler;
            $controllerName  = implode(
                '\\',
                [
                    $this->baseNamespace,
                    $this->controllerName,
                    $notFoundHandler['controler']
                ]
            );

            $controllerInstance = new $controllerName();

            return call_user_func(
                [
                    $controllerInstance,
                    $this->actionName.$notFoundHandler['action']
                ]
            );
        }

        return null;
    }

    /**
     * Set base namespace to allow proper resolve of class name
     *
     * @param string $baseNamespace base namespace
     *
     * @return self for fluent interface
     */
    public function setBaseNamespace(string $baseNamespace)
    {
        $this->baseNamespace = $baseNamespace;

        return $this;
    }

    /**
     * Sets not found handler
     *
     * @param mixed $handler handler that will be excuted if nothing has been
     *                        found
     *
     * @return self for fluent interface
     */
    public function setNotFoundHandler($handler)
    {
        $this->notFoundHandler = $handler;

        return $this;
    }

    // ------------ PRIVATE METHODS

    /**
     * Resolve target name of class (controller) and method (action)
     *
     * @param mixed $matches    found matched variables
     * @param mixed $parameters route parameters
     * @param mixed $handler    handler that should be executed
     *
     * @return mixed
     */
    private function resolveControlerAction($matches, $parameters, $handler)
    {
        $controler = $handler['controler'];
        $action    = $handler['action'];
        $namespace = $this->resolveNamespace($parameters, $handler, $matches);

        if ($this->isPlaceholder($action)) {
            $transformed = $this->transformHandler($matches, $parameters, $handler);
            if ($this->isPlaceholder($controler)) {
                $controler = $namespace.'\\'.$transformed['controler'];
            } else {
                $controler = $namespace.'\\'.$controler;
            }

            return [
                $controler,
                $transformed['action']
            ];
        }

        return [
            $namespace.'\\'.$controler,
            $action
        ];
    }

    /**
     * Transform provided handler with variables and parameters
     *
     * @param mixed $matches    found matched variables
     * @param mixed $parameters route parameters
     * @param mixed $handler    handler that should be executed
     *
     * @return mixed
     */
    private function transformHandler($matches, $parameters, $handler)
    {
        $transformed = [];
        foreach ($handler as $target => $placeholder) {
            foreach ($parameters as $key => $parameterName) {
                if ($parameterName[0][0] == $placeholder) {
                    if ($target == 'controler') {
                        $transformed[$target] = $matches[$key].'Controler';
                    } else {
                        $transformed[$target] = $matches[$key];
                    }
                }
            }
        }

        return $transformed;
    }

    /**
     * Resolve proper namespace according parameters, handler and matches
     *
     * @param mixed $parameters route parameters
     * @param mixed $handler    handler that should be executed
     * @param mixed $matches    found matched variables

     * @return mixed
     */
    private function resolveNamespace($parameters, $handler, $matches)
    {
        if (isset($handler['module'])) {
            $moduleName = $handler['module'];
            if ($this->isPlaceholder($moduleName)) {
                foreach ($handler as $target => $placeholder) {
                    foreach ($parameters as $key => $parameterName) {
                        if ($parameterName[0][0] == $placeholder) {
                            if ($target == 'module') {
                                $moduleName = $matches[$key];
                            }
                        }
                    }
                }
            }

            return implode(
                '\\',
                [
                    $this->baseNamespace,
                    $this->moduleName,
                    $moduleName,
                    $this->controllerName
                ]
            );
        }

        return $this->baseNamespace.'\\'.$this->controllerName;
    }

    /**
     * Check if the variable is placeholder
     *
     * @param string $value found route
     *
     * @return boolean true if value should be transfered
     */
    private function isPlaceholder(string $value) : bool
    {
        if (strrchr($value, '}') && (0 === strpos($value, '{'))) {
            return true;
        }

        return false;
    }

    /**
     * Get function arguments for controler
     *
     * @param mixed $paramMap   parameter map
     * @param mixed $matches    found matched variables
     * @param mixed $parameters route parameters
     * @param mixed $handlers   handler that should be executed

     * @return mixed
     */
    private function getFunctionArgumentsControlers(
        $paramMap,
        $matches,
        $parameters,
        $handlers
    ) {
        $output  = [];
        $matches = array_values($matches);

        if (isset($parameters)) {
            foreach ($handlers as $placeholder) {
                if ($this->isPlaceholder($placeholder)) {
                    foreach ($parameters as $key => $parameterName) {
                        if ($parameterName[0][0] == $placeholder) {
                            unset($parameters[$key]);
                            unset($matches[$key]);
                        }
                    }
                }
            }

            $parameters = array_values($parameters);
            $matches    = array_values($matches);

            foreach ($parameters as $key => $valueName) {
                foreach ($paramMap as $possition => $value) {
                    if ($value == $valueName[1][0]) {
                        $output[] = $matches[$possition];
                    }
                }
            }
        }

        return $output;
    }

    /**
     * Get names of parameters for provided class and method
     *
     * @param string $class      name of class
     * @param string $methodName name of method
     *
     * @return array
     */
    private function getMethodParameters(string $class, string $methodName) : array
    {
        $methodReflection = new ReflectionMethod($class, $methodName);
        $parametersName   = [];

        foreach ($methodReflection->getParameters() as $parameter) {
            $parametersName[] = $parameter->name;
        }

        return $parametersName;
    }
}


1		<?php
2		declare(strict_types=1);
3
4		namespace Kambo\Router\Dispatcher;
5
6		// \Spl
7		use ReflectionMethod;
8
9		// \Kambo\Router
10		use Kambo\Router\Dispatcher;
11		use Kambo\Router\Route\Route\Parsed;
12
13		/**
14		* Class dispatcher with module/controller/action support
15		*
16		* @package Kambo\Router\Dispatcher
17		* @author Bohuslav Simek <[email protected]>
18		* @license MIT
19		*/
20		class ClassAutoBind implements Dispatcher
21		{
22		/**
23		* Not found handler which will be called if nothing has been found.
24		*
25		* @var mixed
26		*/
27		private $notFoundHandler;
28
29		/**
30		* Base namespace for all dispatched classes.
31		*
32		* @var string
33		*/
34		private $baseNamespace = null;
35
36		/**
37		* Name of class that will be used for constructing a namespace for proper
38		* class resolve.
39		*
40		* @var string
41		*/
42		private $controllerName = 'Controllers';
43
44		/**
45		* Name of module that will be used for constructing a namespace for proper
46		* class resolve.
47		*
48		* @var string
49		*/
50		private $moduleName = 'Modules';
51
52		/**
53		* Prefix for action method.
54		* Target method is allways called with this prefix.
55		*
56		* @var string
57		*/
58		private $actionName = 'action';
59
60		/**
61		* Dispatch found route with given parameters
62		*
63		* @param \Kambo\Router\Route\Route\Parsed $route Instance of found and parsed route.
64		* @param array $parameters Additional parameters.
65		*
66		* @return mixed
67		*/
68		public function dispatchRoute(Parsed $route, array $parameters = [])
69		{
70		$handler = $route->getHandler();
71		if (isset($handler['controler']) && isset($handler['action'])) {
72		$routePlaceholders = $route->getPlaceholders();
73		list($controllerName, $action) = $this->resolveControlerAction(
74		$route->getParameters(),
75		$routePlaceholders,
76		$handler
77		);
78
79		// Create instance of target class
80		$controller = new $controllerName();
81		// Create class method name with prefix
82		$methodName = $this->actionName.$action;
83
84		$parameterMap = $this->getMethodParameters(
85		$controllerName,
86		$methodName
87		);
88
89		$methodParameters = $this->getFunctionArgumentsControlers(
90		$parameterMap,
91		$route->getParameters(),
92		$routePlaceholders,
93		$handler
94		);
95
96		return call_user_func_array(
97		[
98		$controller,
99		$methodName
100		],
101		$methodParameters
102		);
103		}
104
105		return $this->dispatchNotFound();
106		}
107
108		/**
109		* Called if any of route did not match the request.
110		*
111		* @return mixed
112		*/
113		public function dispatchNotFound()
114		{
115		if (isset($this->notFoundHandler)) {
116		$notFoundHandler = $this->notFoundHandler;
117		$controllerName = implode(
118		'\\',
119		[
120		$this->baseNamespace,
121		$this->controllerName,
122		$notFoundHandler['controler']
123		]
124		);
125
126		$controllerInstance = new $controllerName();
127
128		return call_user_func(
129		[
130		$controllerInstance,
131		$this->actionName.$notFoundHandler['action']
132		]
133		);
134		}
135
136		return null;
137		}
138
139		/**
140		* Set base namespace to allow proper resolve of class name
141		*
142		* @param string $baseNamespace base namespace
143		*
144		* @return self for fluent interface
145		*/
146		public function setBaseNamespace(string $baseNamespace)
147		{
148		$this->baseNamespace = $baseNamespace;
149
150		return $this;
151		}
152
153		/**
154		* Sets not found handler
155		*
156		* @param mixed $handler handler that will be excuted if nothing has been
157		* found
158		*
159		* @return self for fluent interface
160		*/
161		public function setNotFoundHandler($handler)
162		{
163		$this->notFoundHandler = $handler;
164
165		return $this;
166		}
167
168		// ------------ PRIVATE METHODS
169
170		/**
171		* Resolve target name of class (controller) and method (action)
172		*
173		* @param mixed $matches found matched variables
174		* @param mixed $parameters route parameters
175		* @param mixed $handler handler that should be executed
176		*
177		* @return mixed
178		*/
179		private function resolveControlerAction($matches, $parameters, $handler)
180		{
181		$controler = $handler['controler'];
182		$action = $handler['action'];
183		$namespace = $this->resolveNamespace($parameters, $handler, $matches);
184
185		if ($this->isPlaceholder($action)) {
186		$transformed = $this->transformHandler($matches, $parameters, $handler);
187		if ($this->isPlaceholder($controler)) {
188		$controler = $namespace.'\\'.$transformed['controler'];
189		} else {
190		$controler = $namespace.'\\'.$controler;
191		}
192
193		return [
194		$controler,
195		$transformed['action']
196		];
197		}
198
199		return [
200		$namespace.'\\'.$controler,
201		$action
202		];
203		}
204
205		/**
206		* Transform provided handler with variables and parameters
207		*
208		* @param mixed $matches found matched variables
209		* @param mixed $parameters route parameters
210		* @param mixed $handler handler that should be executed
211		*
212		* @return mixed
213		*/
214		private function transformHandler($matches, $parameters, $handler)
215		{
216		$transformed = [];
217		foreach ($handler as $target => $placeholder) {
218		foreach ($parameters as $key => $parameterName) {
219		if ($parameterName[0][0] == $placeholder) {
220		if ($target == 'controler') {
221		$transformed[$target] = $matches[$key].'Controler';
222		} else {
223		$transformed[$target] = $matches[$key];
224		}
225		}
226		}
227		}
228
229		return $transformed;
230		}
231
232		/**
233		* Resolve proper namespace according parameters, handler and matches
234		*
235		* @param mixed $parameters route parameters
236		* @param mixed $handler handler that should be executed
237		* @param mixed $matches found matched variables
238
239		* @return mixed
240		*/
241		private function resolveNamespace($parameters, $handler, $matches)
242		{
243		if (isset($handler['module'])) {
244		$moduleName = $handler['module'];
245		if ($this->isPlaceholder($moduleName)) {
246		foreach ($handler as $target => $placeholder) {
247		foreach ($parameters as $key => $parameterName) {
248		if ($parameterName[0][0] == $placeholder) {
249		if ($target == 'module') {
250		$moduleName = $matches[$key];
251		}
252		}
253		}
254		}
255		}
256
257		return implode(
258		'\\',
259		[
260		$this->baseNamespace,
261		$this->moduleName,
262		$moduleName,
263		$this->controllerName
264		]
265		);
266		}
267
268		return $this->baseNamespace.'\\'.$this->controllerName;
269		}
270
271		/**
272		* Check if the variable is placeholder
273		*
274		* @param string $value found route
275		*
276		* @return boolean true if value should be transfered
277		*/
278		private function isPlaceholder(string $value) : bool
279		{
280		if (strrchr($value, '}') && (0 === strpos($value, '{'))) {
281		return true;
282		}
283
284		return false;
285		}
286
287		/**
288		* Get function arguments for controler
289		*
290		* @param mixed $paramMap parameter map
291		* @param mixed $matches found matched variables
292		* @param mixed $parameters route parameters
293		* @param mixed $handlers handler that should be executed
294
295		* @return mixed
296		*/
297		private function getFunctionArgumentsControlers(
298		$paramMap,
299		$matches,
300		$parameters,
301		$handlers
302		) {
303		$output = [];
304		$matches = array_values($matches);
305
306		if (isset($parameters)) {
307		foreach ($handlers as $placeholder) {
308		if ($this->isPlaceholder($placeholder)) {
309		foreach ($parameters as $key => $parameterName) {
310		if ($parameterName[0][0] == $placeholder) {
311		unset($parameters[$key]);
312		unset($matches[$key]);
313		}
314		}
315		}
316		}
317
318		$parameters = array_values($parameters);
319		$matches = array_values($matches);
320
321	View Code Duplication	foreach ($parameters as $key => $valueName) {
322		foreach ($paramMap as $possition => $value) {
323		if ($value == $valueName[1][0]) {
324		$output[] = $matches[$possition];
325		}
326		}
327		}
328		}
329
330		return $output;
331		}
332
333		/**
334		* Get names of parameters for provided class and method
335		*
336		* @param string $class name of class
337		* @param string $methodName name of method
338		*
339		* @return array
340		*/
341		private function getMethodParameters(string $class, string $methodName) : array
342		{
343		$methodReflection = new ReflectionMethod($class, $methodName);
344		$parametersName = [];
345
346		foreach ($methodReflection->getParameters() as $parameter) {
347		$parametersName[] = $parameter->name;
348		}
349
350		return $parametersName;
351		}
352		}
353

kambo-1st / KamboRouter

Branch — master (32ad63)

ClassAutoBind::dispatchRoute() B

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