AbstractHandler::handleException() - Code Metrics - Inspection of "2.0" - sfelix-martins/json-exception-handler - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#5)

by Samuel

created 2019-01-05 19:08 UTC

AbstractHandler::handleException() A

↳ Parent: AbstractHandler

Complexity

Conditions	1
Paths	1

Size

Total Lines	9
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	4
nc	1
nop	0
dl	0
loc	9
rs	10
c	0
b	0
f	0

<?php

namespace SMartins\Exceptions\Handlers;

use Exception;
use InvalidArgumentException;
use Illuminate\Auth\AuthenticationException;
use Illuminate\Validation\ValidationException;
use SMartins\Exceptions\Response\ErrorHandledInterface;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use SMartins\Exceptions\JsonApi\Response as JsonApiResponse;
use SMartins\Exceptions\Response\ErrorHandledCollectionInterface;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

abstract class AbstractHandler
{
    /**
     * The exception thrown.
     *
     * @var \Exception
     */
    protected $exception;

    /**
     * An array where the key is the class exception and the value is the handler
     * class that will treat the exception.
     *
     * @var array
     */
    protected $exceptionHandlers = [];

    /**
     * An internal array where the key is the exception class and the value is
     * the handler class that will treat the exception.
     *
     * @var array
     */
    protected $internalExceptionHandlers = [
        Exception::class => Handler::class,
        ModelNotFoundException::class => ModelNotFoundHandler::class,
        AuthenticationException::class => AuthenticationHandler::class,
        ValidationException::class => ValidationHandler::class,
        BadRequestHttpException::class => BadRequestHttpHandler::class,
        'Laravel\Passport\Exceptions\MissingScopeException' => MissingScopeHandler::class,
        'League\OAuth2\Server\Exception\OAuthServerException' => OAuthServerHandler::class,
    ];

    /**
     * Create instance using the Exception to be handled.
     *
     * @param Exception $e
     */
    public function __construct(Exception $e)
    {
        $this->exception = $e;
    }

    /**
     * Handle with an exception according to specific definitions. Returns one
     * or more errors using the exception from $exceptions attribute.
     *
     * @return ErrorHandledInterface|ErrorHandledCollectionInterface
     */
    abstract public function handle();

    /**
     * Get error code. If code is empty from config file based on type.
     *
     * @param  string $type Code type from config file
     * @return int
     */
    public function getCode($type = 'default')
    {
        if (empty($code = $this->exception->getCode())) {
            return config('json-exception-handler.codes.'.$type);
        }

        return $code;
    }

    /**
     * Return response with handled exception.
     *
     * @return \SMartins\Exceptions\Response\AbstractResponse
     * @throws \SMartins\Exceptions\Response\InvalidContentException
     */
    public function handleException()
    {
        $handler = $this->getExceptionHandler();

        $errors = $this->validatedHandledException($handler->handle());

        $responseHandler = $this->getResponseHandler();

        return new $responseHandler($errors);
    }

    /**
     * Validate response from handle method of handler class.
     *
     * @param ErrorHandledInterface|ErrorHandledCollectionInterface
     * @return ErrorHandledCollectionInterface
     *
     * @throws \SMartins\Exceptions\Response\InvalidContentException
     */
    public function validatedHandledException($error)
    {
        if ($error instanceof ErrorHandledCollectionInterface) {
            return $error->validatedContent(ErrorHandledInterface::class);
        } elseif ($error instanceof ErrorHandledInterface) {
            return $error->toCollection()->setStatusCode($error->getStatus());
        }

        throw new InvalidArgumentException('The errors must be an instance of ['.ErrorHandledInterface::class.'] or ['.ErrorHandledCollectionInterface::class.'].');
    }

    /**
     * Get the class the will handle the Exception from exceptionHandlers attributes.
     *
     * @return mixed
     */
    public function getExceptionHandler()
    {
        $handlers = $this->getConfiguredHandlers();

        $handler = isset($handlers[get_class($this->exception)])
            ? $handlers[get_class($this->exception)]
            : $this->getDefaultHandler();

        return new $handler($this->exception);
    }

    /**
     * Get exception handlers from internal and set on App\Exceptions\Handler.php.
     *
     * @return array
     */
    public function getConfiguredHandlers()
    {
        return array_merge($this->internalExceptionHandlers, $this->exceptionHandlers);
    }

    /**
     * Get default pointer using file and line of exception.
     *
     * @return string
     */
    public function getDefaultPointer()
    {
        return $this->exception->getFile().':'.$this->exception->getLine();
    }

    /**
     * Get default title from exception.
     *
     * @return string
     */
    public function getDefaultTitle()
    {
        return snake_case(class_basename($this->exception));
    }

    /**
     * Get default http code. Check if exception has getStatusCode() methods.
     * If not get from config file.
     *
     * @return int
     */
    public function getStatusCode()
    {
        if (method_exists($this->exception, 'getStatusCode')) {
            return $this->exception->getStatusCode();
        }

        return config('json-exception-handler.http_code');
    }

    /**
     * The default handler to handle not treated exceptions.
     *
     * @return \SMartins\Exceptions\Handlers\Handler
     */
    public function getDefaultHandler()
    {
        return new Handler($this->exception);
    }

    /**
     * Get default response handler of the if any response handler was defined
     * on config file.
     *
     * @return string
     */
    public function getDefaultResponseHandler()
    {
        return JsonApiResponse::class;
    }

    /**
     * Get the response class that will handle the json response.
     *
     * @todo Check if the response_handler on config is an instance of
     *       \SMartins\Exceptions\Response\AbstractResponse
     * @return string
     */
    public function getResponseHandler()
    {
        $response = config('json-exception-handler.response_handler');

        return $response ?? $this->getDefaultResponseHandler();
    }

    /**
     * Set exception handlers.
     *
     * @param array $handlers
     * @return AbstractHandler
     */
    public function setExceptionHandlers(array $handlers)
    {
        $this->exceptionHandlers = $handlers;

        return $this;
    }
}


1			<?php
2
3			namespace SMartins\Exceptions\Handlers;
4
5			use Exception;
6			use InvalidArgumentException;
7			use Illuminate\Auth\AuthenticationException;
8			use Illuminate\Validation\ValidationException;
9			use SMartins\Exceptions\Response\ErrorHandledInterface;
10			use Illuminate\Database\Eloquent\ModelNotFoundException;
11			use SMartins\Exceptions\JsonApi\Response as JsonApiResponse;
12			use SMartins\Exceptions\Response\ErrorHandledCollectionInterface;
13			use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
14
15			abstract class AbstractHandler
16			{
17			/**
18			* The exception thrown.
19			*
20			* @var \Exception
21			*/
22			protected $exception;
23
24			/**
25			* An array where the key is the class exception and the value is the handler
26			* class that will treat the exception.
27			*
28			* @var array
29			*/
30			protected $exceptionHandlers = [];
31
32			/**
33			* An internal array where the key is the exception class and the value is
34			* the handler class that will treat the exception.
35			*
36			* @var array
37			*/
38			protected $internalExceptionHandlers = [
39			Exception::class => Handler::class,
40			ModelNotFoundException::class => ModelNotFoundHandler::class,
41			AuthenticationException::class => AuthenticationHandler::class,
42			ValidationException::class => ValidationHandler::class,
43			BadRequestHttpException::class => BadRequestHttpHandler::class,
44			'Laravel\Passport\Exceptions\MissingScopeException' => MissingScopeHandler::class,
45			'League\OAuth2\Server\Exception\OAuthServerException' => OAuthServerHandler::class,
46			];
47
48			/**
49			* Create instance using the Exception to be handled.
50			*
51			* @param Exception $e
52			*/
53			public function __construct(Exception $e)
54			{
55			$this->exception = $e;
56			}
57
58			/**
59			* Handle with an exception according to specific definitions. Returns one
60			* or more errors using the exception from $exceptions attribute.
61			*
62			* @return ErrorHandledInterface\|ErrorHandledCollectionInterface
63			*/
64			abstract public function handle();
65
66			/**
67			* Get error code. If code is empty from config file based on type.
68			*
69			* @param string $type Code type from config file
70			* @return int
71			*/
72			public function getCode($type = 'default')
73			{
74			if (empty($code = $this->exception->getCode())) {
75			return config('json-exception-handler.codes.'.$type);
76			}
77
78			return $code;
79			}
80
81			/**
82			* Return response with handled exception.
83			*
84			* @return \SMartins\Exceptions\Response\AbstractResponse
85			* @throws \SMartins\Exceptions\Response\InvalidContentException
86			*/
87			public function handleException()
88			{
89			$handler = $this->getExceptionHandler();
90
91			$errors = $this->validatedHandledException($handler->handle());
92
93			$responseHandler = $this->getResponseHandler();
94
95			return new $responseHandler($errors);
96			}
97
98			/**
99			* Validate response from handle method of handler class.
100			*
101			* @param ErrorHandledInterface\|ErrorHandledCollectionInterface
102			* @return ErrorHandledCollectionInterface
103			*
104			* @throws \SMartins\Exceptions\Response\InvalidContentException
105			*/
106			public function validatedHandledException($error)
107			{
108			if ($error instanceof ErrorHandledCollectionInterface) {
109			return $error->validatedContent(ErrorHandledInterface::class);
110			} elseif ($error instanceof ErrorHandledInterface) {
111			return $error->toCollection()->setStatusCode($error->getStatus());
112			}
113
114			throw new InvalidArgumentException('The errors must be an instance of ['.ErrorHandledInterface::class.'] or ['.ErrorHandledCollectionInterface::class.'].');
115			}
116
117			/**
118			* Get the class the will handle the Exception from exceptionHandlers attributes.
119			*
120			* @return mixed
121			*/
122			public function getExceptionHandler()
123			{
124			$handlers = $this->getConfiguredHandlers();
125
126			$handler = isset($handlers[get_class($this->exception)])
127			? $handlers[get_class($this->exception)]
128			: $this->getDefaultHandler();
129
130			return new $handler($this->exception);
131			}
132
133			/**
134			* Get exception handlers from internal and set on App\Exceptions\Handler.php.
135			*
136			* @return array
137			*/
138			public function getConfiguredHandlers()
139			{
140			return array_merge($this->internalExceptionHandlers, $this->exceptionHandlers);
141			}
142
143			/**
144			* Get default pointer using file and line of exception.
145			*
146			* @return string
147			*/
148			public function getDefaultPointer()
149			{
150			return $this->exception->getFile().':'.$this->exception->getLine();
151			}
152
153			/**
154			* Get default title from exception.
155			*
156			* @return string
157			*/
158			public function getDefaultTitle()
159			{
160			return snake_case(class_basename($this->exception));
161			}
162
163			/**
164			* Get default http code. Check if exception has getStatusCode() methods.
165			* If not get from config file.
166			*
167			* @return int
168			*/
169			public function getStatusCode()
170			{
171			if (method_exists($this->exception, 'getStatusCode')) {
172			return $this->exception->getStatusCode();
173			}
174
175			return config('json-exception-handler.http_code');
176			}
177
178			/**
179			* The default handler to handle not treated exceptions.
180			*
181			* @return \SMartins\Exceptions\Handlers\Handler
182			*/
183			public function getDefaultHandler()
184			{
185			return new Handler($this->exception);
186			}
187
188			/**
189			* Get default response handler of the if any response handler was defined
190			* on config file.
191			*
192			* @return string
193			*/
194			public function getDefaultResponseHandler()
195			{
196			return JsonApiResponse::class;
197			}
198
199			/**
200			* Get the response class that will handle the json response.
201			*
202			* @todo Check if the response_handler on config is an instance of
203			* \SMartins\Exceptions\Response\AbstractResponse
204			* @return string
205			*/
206			public function getResponseHandler()
207			{
208			$response = config('json-exception-handler.response_handler');
209
210			return $response ?? $this->getDefaultResponseHandler();
211			}
212
213			/**
214			* Set exception handlers.
215			*
216			* @param array $handlers
217			* @return AbstractHandler
218			*/
219			public function setExceptionHandlers(array $handlers)
220			{
221			$this->exceptionHandlers = $handlers;
222
223			return $this;
224			}
225			}
226

sfelix-martins / json-exception-handler

Pull Request — master (#5)

AbstractHandler::handleException() A

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