Pipeline::handleException() - Code Metrics - Inspection of "move `withTransaction` method to trait" - michael-rubel/laravel-enhanced-pipeline - Measure and Improve Code Quality continuously with Scrutinizer

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by Michael

created 2022-06-10 06:18 UTC

Pipeline::handleException() A

↳ Parent: Pipeline

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	1
c	1
b	0
f	0
nc	1
nop	2
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10

<?php

namespace MichaelRubel\EnhancedPipeline;

use Closure;
use Illuminate\Container\Container as ContainerConcrete;
use Illuminate\Contracts\Container\Container;
use Illuminate\Contracts\Pipeline\Pipeline as PipelineContract;
use MichaelRubel\EnhancedPipeline\Traits\HandlesDatabaseTransactions;
use RuntimeException;
use Throwable;

class Pipeline implements PipelineContract
{
    use HandlesDatabaseTransactions;

    /**
     * The container implementation.
     *
     * @var \Illuminate\Contracts\Container\Container|null
     */
    protected $container;

    /**
     * The object being passed through the pipeline.
     *
     * @var mixed
     */
    protected $passable;

    /**
     * The callback to be executed on failure pipeline.
     *
     * @var Closure|null
     */
    protected $onFailure;

    /**
     * The array of class pipes.
     *
     * @var array
     */
    protected $pipes = [];

    /**
     * The method to call on each pipe.
     *
     * @var string
     */
    protected $method = 'handle';

    /**
     * Create a new class instance.
     *
     * @param  \Illuminate\Contracts\Container\Container|null  $container
     * @return void
     */
    public function __construct(Container $container = null)
    {
        $this->container = $container;
    }

    /**
     * Create a new class instance.
     *
     * @param Container|null $container
     *
     * @return Pipeline
     */
    public static function make(Container $container = null): Pipeline
    {
        if (! $container) {
            $container = ContainerConcrete::getInstance();
        }

        return new Pipeline($container);
    }

    /**
     * Set the object being sent through the pipeline.
     *
     * @param  mixed  $passable
     * @return $this
     */
    public function send($passable)
    {
        $this->passable = $passable;

        return $this;
    }

    /**
     * Set the array of pipes.
     *
     * @param  array|mixed  $pipes
     * @return $this
     */
    public function through($pipes)
    {
        $this->pipes = is_array($pipes) ? $pipes : func_get_args();

        return $this;
    }

    /**
     * Push additional pipes onto the pipeline.
     *
     * @param  array|mixed  $pipes
     * @return $this
     */
    public function pipe($pipes)
    {
        array_push($this->pipes, ...(is_array($pipes) ? $pipes : func_get_args()));

        return $this;
    }

    /**
     * Set the method to call on the pipes.
     *
     * @param  string  $method
     * @return $this
     */
    public function via($method)
    {
        $this->method = $method;

        return $this;
    }

    /**
     * Run the pipeline with a final destination callback.
     *
     * @param  \Closure  $destination
     * @return mixed
     */
    public function then(Closure $destination)
    {
        try {
            $this->beginTransaction();

            $pipeline = array_reduce(
                array_reverse($this->pipes()),
                $this->carry(),
                $this->prepareDestination($destination)
            );

            return $pipeline($this->passable);
        } catch (Throwable $e) {
            $this->rollbackTransaction();

            return $this->handleException($this->passable, $e);
        }
    }

    /**
     * Run the pipeline and return the result.
     *
     * @return mixed
     */
    public function thenReturn()
    {
        return $this->then(function ($passable) {
            return $passable;
        });
    }

    /**
     * Get the final piece of the Closure onion.
     *
     * @param  \Closure  $destination
     * @return \Closure
     */
    protected function prepareDestination(Closure $destination)
    {
        return function ($passable) use ($destination) {
            return $destination($passable);
        };
    }

    /**
     * Get a Closure that represents a slice of the application onion.
     *
     * @return \Closure
     */
    protected function carry()
    {
        return function ($stack, $pipe) {
            return function ($passable) use ($stack, $pipe) {
                try {
                    if (is_callable($pipe)) {
                        // If the pipe is a callable, then we will call it directly, but otherwise we
                        // will resolve the pipes out of the dependency container and call it with
                        // the appropriate method and arguments, returning the results back out.
                        return $pipe($passable, $stack);
                    } elseif (! is_object($pipe)) {
                        [$name, $parameters] = $this->parsePipeString($pipe);

                        // If the pipe is a string we will parse the string and resolve the class out
                        // of the dependency injection container. We can then build a callable and
                        // execute the pipe function giving in the parameters that are required.
                        $pipe = $this->getContainer()->make($name);

                        $parameters = array_merge([$passable, $stack], $parameters);
                    } else {
                        // If the pipe is already an object we'll just make a callable and pass it to
                        // the pipe as-is. There is no need to do any extra parsing and formatting
                        // since the object we're given was already a fully instantiated object.
                        $parameters = [$passable, $stack];
                    }

                    $carry = method_exists($pipe, $this->method)
                                    ? $pipe->{$this->method}(...$parameters)
                                    : $pipe(...$parameters);

                    return $this->handleCarry($carry);
                } catch (Throwable $e) {
                    if ($this->onFailure) {
                        return ($this->onFailure)($passable, $e, $pipe);
                    }

                    return $this->handleException($passable, $e);
                }
            };
        };
    }

    /**
     * Parse full pipe string to get name and parameters.
     *
     * @param  string  $pipe
     * @return array
     */
    protected function parsePipeString($pipe)
    {
        [$name, $parameters] = array_pad(explode(':', $pipe, 2), 2, []);

        if (is_string($parameters)) {
            $parameters = explode(',', $parameters);
        }

        return [$name, $parameters];
    }

    /**
     * Get the array of configured pipes.
     *
     * @return array
     */
    protected function pipes()
    {
        return [
            ...$this->pipes,
            function ($passable, $next) {
                $this->commitTransaction();

                return $next($passable);
            },
        ];
    }

    /**
     * Get the container instance.
     *
     * @return \Illuminate\Contracts\Container\Container
     *
     * @throws \RuntimeException
     */
    protected function getContainer()
    {
        if (! $this->container) {
            throw new RuntimeException('A container instance has not been passed to the Pipeline.');
        }

        return $this->container;
    }

    /**
     * Set the container instance.
     *
     * @param  \Illuminate\Contracts\Container\Container  $container
     * @return $this
     */
    public function setContainer(Container $container)
    {
        $this->container = $container;

        return $this;
    }

    /**
     * Set callback to be executed on failure pipeline.
     *
     * @param Closure $callback
     *
     * @return $this
     */
    public function onFailure(Closure $callback)
    {
        $this->onFailure = $callback;

        return $this;
    }

    /**
     * Handle the value returned from each pipe before passing it to the next.
     *
     * @param  mixed  $carry
     * @return mixed
     */
    protected function handleCarry($carry)
    {
        return $carry;
    }

    /**
     * Handle the given exception.
     *
     * @param  mixed  $passable
     * @param  \Throwable  $e
     * @return mixed
     *
     * @throws \Throwable
     */
    protected function handleException($passable, Throwable $e)
    {
        throw $e;
    }
}


1		<?php
2
3		namespace MichaelRubel\EnhancedPipeline;
4
5		use Closure;
6		use Illuminate\Container\Container as ContainerConcrete;
7		use Illuminate\Contracts\Container\Container;
8		use Illuminate\Contracts\Pipeline\Pipeline as PipelineContract;
9		use MichaelRubel\EnhancedPipeline\Traits\HandlesDatabaseTransactions;
10		use RuntimeException;
11		use Throwable;
12
13		class Pipeline implements PipelineContract
14		{
15		use HandlesDatabaseTransactions;
16
17		/**
18		* The container implementation.
19		*
20		* @var \Illuminate\Contracts\Container\Container\|null
21		*/
22		protected $container;
23
24		/**
25		* The object being passed through the pipeline.
26		*
27		* @var mixed
28		*/
29		protected $passable;
30
31		/**
32		* The callback to be executed on failure pipeline.
33		*
34		* @var Closure\|null
35		*/
36		protected $onFailure;
37
38		/**
39		* The array of class pipes.
40		*
41		* @var array
42		*/
43		protected $pipes = [];
44
45		/**
46		* The method to call on each pipe.
47		*
48		* @var string
49		*/
50		protected $method = 'handle';
51
52		/**
53		* Create a new class instance.
54		*
55		* @param \Illuminate\Contracts\Container\Container\|null $container
56		* @return void
57		*/
58	20	public function __construct(Container $container = null)
59		{
60	20	$this->container = $container;
61		}
62
63		/**
64		* Create a new class instance.
65		*
66		* @param Container\|null $container
67		*
68		* @return Pipeline
69		*/
70	6	public static function make(Container $container = null): Pipeline
71		{
72	6	if (! $container) {
73	6	$container = ContainerConcrete::getInstance();
74		}
75
76	6	return new Pipeline($container);
77		}
78
79		/**
80		* Set the object being sent through the pipeline.
81		*
82		* @param mixed $passable
83		* @return $this
84		*/
85	20	public function send($passable)
86		{
87	20	$this->passable = $passable;
88
89	20	return $this;
90		}
91
92		/**
93		* Set the array of pipes.
94		*
95		* @param array\|mixed $pipes
96		* @return $this
97		*/
98	20	public function through($pipes)
99		{
100	20	$this->pipes = is_array($pipes) ? $pipes : func_get_args();
101
102	20	return $this;
103		}
104
105		/**
106		* Push additional pipes onto the pipeline.
107		*
108		* @param array\|mixed $pipes
109		* @return $this
110		*/
111	1	public function pipe($pipes)
112		{
113	1	array_push($this->pipes, ...(is_array($pipes) ? $pipes : func_get_args()));
114
115	1	return $this;
116		}
117
118		/**
119		* Set the method to call on the pipes.
120		*
121		* @param string $method
122		* @return $this
123		*/
124	1	public function via($method)
125		{
126	1	$this->method = $method;
127
128	1	return $this;
129		}
130
131		/**
132		* Run the pipeline with a final destination callback.
133		*
134		* @param \Closure $destination
135		* @return mixed
136		*/
137	20	public function then(Closure $destination)
138		{
139		try {
140	20	$this->beginTransaction();
141
142	20	$pipeline = array_reduce(
143	20	array_reverse($this->pipes()),
144	20	$this->carry(),
145	20	$this->prepareDestination($destination)
146		);
147
148	20	return $pipeline($this->passable);
149	4	} catch (Throwable $e) {
150	4	$this->rollbackTransaction();
151
152	4	return $this->handleException($this->passable, $e);
153		}
154		}
155
156		/**
157		* Run the pipeline and return the result.
158		*
159		* @return mixed
160		*/
161	8	public function thenReturn()
162		{
163	8	return $this->then(function ($passable) {
164	4	return $passable;
165		});
166		}
167
168		/**
169		* Get the final piece of the Closure onion.
170		*
171		* @param \Closure $destination
172		* @return \Closure
173		*/
174	20	protected function prepareDestination(Closure $destination)
175		{
176	20	return function ($passable) use ($destination) {
177	12	return $destination($passable);
178		};
179		}
180
181		/**
182		* Get a Closure that represents a slice of the application onion.
183		*
184		* @return \Closure
185		*/
186	20	protected function carry()
187		{
188	20	return function ($stack, $pipe) {
189	20	return function ($passable) use ($stack, $pipe) {
190		try {
191	20	if (is_callable($pipe)) {
192		// If the pipe is a callable, then we will call it directly, but otherwise we
193		// will resolve the pipes out of the dependency container and call it with
194		// the appropriate method and arguments, returning the results back out.
195	15	return $pipe($passable, $stack);
196	11	} elseif (! is_object($pipe)) {
197	10	[$name, $parameters] = $this->parsePipeString($pipe);
198
199		// If the pipe is a string we will parse the string and resolve the class out
200		// of the dependency injection container. We can then build a callable and
201		// execute the pipe function giving in the parameters that are required.
202	10	$pipe = $this->getContainer()->make($name);
203
204	8	$parameters = array_merge([$passable, $stack], $parameters);
205		} else {
206		// If the pipe is already an object we'll just make a callable and pass it to
207		// the pipe as-is. There is no need to do any extra parsing and formatting
208		// since the object we're given was already a fully instantiated object.
209	1	$parameters = [$passable, $stack];
210		}
211
212	9	$carry = method_exists($pipe, $this->method)
213	8	? $pipe->{$this->method}(...$parameters)
214	1	: $pipe(...$parameters);
215
216	7	return $this->handleCarry($carry);
217	6	} catch (Throwable $e) {
218	6	if ($this->onFailure) {
219	2	return ($this->onFailure)($passable, $e, $pipe);
220		}
221
222	4	return $this->handleException($passable, $e);
223		}
224		};
225		};
226		}
227
228		/**
229		* Parse full pipe string to get name and parameters.
230		*
231		* @param string $pipe
232		* @return array
233		*/
234	10	protected function parsePipeString($pipe)
235		{
236	10	[$name, $parameters] = array_pad(explode(':', $pipe, 2), 2, []);
237
238	10	if (is_string($parameters)) {
239	1	$parameters = explode(',', $parameters);
240		}
241
242	10	return [$name, $parameters];
243		}
244
245		/**
246		* Get the array of configured pipes.
247		*
248		* @return array
249		*/
250	20	protected function pipes()
251		{
252		return [
253	20	...$this->pipes,
254	20	function ($passable, $next) {
255	12	$this->commitTransaction();
256
257	12	return $next($passable);
258		},
259		];
260		}
261
262		/**
263		* Get the container instance.
264		*
265		* @return \Illuminate\Contracts\Container\Container
266		*
267		* @throws \RuntimeException
268		*/
269	10	protected function getContainer()
270		{
271	10	if (! $this->container) {
272	1	throw new RuntimeException('A container instance has not been passed to the Pipeline.');
273		}
274
275	9	return $this->container;
276		}
277
278		/**
279		* Set the container instance.
280		*
281		* @param \Illuminate\Contracts\Container\Container $container
282		* @return $this
283		*/
284	1	public function setContainer(Container $container)
285		{
286	1	$this->container = $container;
287
288	1	return $this;
289		}
290
291		/**
292		* Set callback to be executed on failure pipeline.
293		*
294		* @param Closure $callback
295		*
296		* @return $this
297		*/
298	2	public function onFailure(Closure $callback)
299		{
300	2	$this->onFailure = $callback;
301
302	2	return $this;
303		}
304
305		/**
306		* Handle the value returned from each pipe before passing it to the next.
307		*
308		* @param mixed $carry
309		* @return mixed
310		*/
311	7	protected function handleCarry($carry)
312		{
313	7	return $carry;
314		}
315
316		/**
317		* Handle the given exception.
318		*
319		* @param mixed $passable
320		* @param \Throwable $e
321		* @return mixed
322		*
323		* @throws \Throwable
324		*/
325	4	protected function handleException($passable, Throwable $e)
326		{
327	4	throw $e;
328		}
329		}
330

michael-rubel / laravel-enhanced-pipeline

Push — main ( 8a9455...e00516 )

Pipeline::handleException() A

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