EventStreamRepository::revert() - Code Metrics - Inspection of "update to php 7.4 version" - php-service-bus/event-sourcing - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — v4.0 ( 989be1...ff495d )

by Masiukevich

created 2019-12-01 21:04 UTC

EventStreamRepository::revert() A

↳ Parent: EventStreamRepository

Complexity

Conditions	2
Paths	1

Size

Total Lines	55
Code Lines	31

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	28
CRAP Score	2.0011

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	2
eloc	31
c	1
b	0
f	0
nc	1
nop	3
dl	0
loc	55
ccs	28
cts	30
cp	0.9333
crap	2.0011
rs	9.424

How to fix Long Method

<?php

/**
 * Event Sourcing implementation.
 *
 * @author  Maksim Masiukevich <[email protected]>
 * @license MIT
 * @license https://opensource.org/licenses/MIT
 */

declare(strict_types = 1);

namespace ServiceBus\EventSourcing\EventStream;

use function Amp\call;
use function ServiceBus\Common\createWithoutConstructor;
use function ServiceBus\Common\invokeReflectionMethod;
use function ServiceBus\EventSourcing\EventStream\Store\streamToDomainRepresentation;
use function ServiceBus\EventSourcing\EventStream\Store\streamToStoredRepresentation;
use Amp\Promise;
use Psr\Log\LoggerInterface;
use Psr\Log\NullLogger;
use ServiceBus\EventSourcing\Aggregate;
use ServiceBus\EventSourcing\AggregateId;
use ServiceBus\EventSourcing\EventStream\Serializer\EventSerializer;
use ServiceBus\EventSourcing\EventStream\Store\EventStreamStore;
use ServiceBus\EventSourcing\EventStream\Store\StoredAggregateEventStream;
use ServiceBus\EventSourcing\Snapshots\Snapshot;
use ServiceBus\EventSourcing\Snapshots\Snapshotter;

/**
 * Repository for working with event streams.
 */
final class EventStreamRepository
{
    public const REVERT_MODE_SOFT_DELETE = 1;

    public const REVERT_MODE_DELETE = 2;

    private EventStreamStore $store;

    private EventSerializer $serializer;

    private Snapshotter $snapshotter;

    private LoggerInterface $logger;

    public function __construct(
        EventStreamStore $store,
        Snapshotter $snapshotter,
        EventSerializer $serializer,
        ?LoggerInterface $logger = null
    ) {
        $this->store       = $store;
        $this->snapshotter = $snapshotter;
        $this->serializer  = $serializer;
        $this->logger      = $logger ?? new NullLogger();
    }

    /**
     * Load aggregate.
     *
     * @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     * @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
     * @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
     *
     * @return Promise<\ServiceBus\EventSourcing\Aggregate|null>
     */
    public function load(AggregateId $id): Promise
    {
        $store      = $this->store;
        $serializer = $this->serializer;
        $snaphotter = $this->snapshotter;
        $logger     = $this->logger;

        return call(
            static function(AggregateId $id) use ($store, $serializer, $snaphotter, $logger): \Generator
            {
                $idValue = $id->toString();
                $idClass = \get_class($id);

                $logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}"', [
                    'aggregateIdClass' => $idClass,
                    'aggregateId'      => $idValue,
                ]);

                try
                {
                    $aggregate         = null;
                    $fromStreamVersion = Aggregate::START_PLAYHEAD_INDEX;

                    /** @var \ServiceBus\EventSourcing\Snapshots\Snapshot|null $loadedSnapshot */
                    $loadedSnapshot = yield $snaphotter->load($id);

                    if (null !== $loadedSnapshot)
                    {
                        $aggregate         = $loadedSnapshot->aggregate;
                        $fromStreamVersion = $aggregate->version() + 1;

                        $logger->debug(
                            'Found a snapshot of the state of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}" on version "{aggregateVersion}"',
                            [
                                'aggregateIdClass' => $idClass,
                                'aggregateId'      => $idValue,
                                'aggregateVersion' => $aggregate->version(),
                            ]
                        );
                    }

                    /** @var \ServiceBus\EventSourcing\EventStream\Store\StoredAggregateEventStream|null $storedEventStream */
                    $storedEventStream = yield $store->load($id, $fromStreamVersion);

                    $aggregate = self::restoreStream($serializer, $aggregate, $storedEventStream);

                    return $aggregate;
                }
                catch (\Throwable $throwable)
                {
                    $logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}" failed', [
                        'aggregateIdClass' => $idClass,
                        'aggregateId'      => $idValue,
                        'throwableMessage' => $throwable->getMessage(),
                        'throwablePoint'   => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
                    ]);

                    throw $throwable;
                }
                finally
                {
                    /** @psalm-suppress PossiblyUndefinedVariable */
                    unset($storedEventStream, $loadedSnapshot, $fromStreamVersion);
                }
            },
            $id
        );
    }

    /**
     * Save a new event stream.
     *
     * @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     * @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
     * @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
     *
     * @return Promise<array<int, object>>
     */
    public function save(Aggregate $aggregate): Promise
    {
        $store      = $this->store;
        $serializer = $this->serializer;
        $snaphotter = $this->snapshotter;
        $logger     = $this->logger;

        return call(
            static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
            {
                $id = $aggregate->id();

                $idValue = $id->toString();
                $idClass = \get_class($id);

                $logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}"', [
                    'aggregateIdClass' => $idClass,
                    'aggregateId'      => $idValue,
                ]);

                try
                {
                    /**
                     * @psalm-var array<int, object> $raisedEvents
                     *
                     * @var object[] $raisedEvents
                     */
                    $raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, true);

                    return $raisedEvents;
                }
                catch (\Throwable $throwable)
                {
                    $logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}" failed', [
                        'aggregateIdClass' => $idClass,
                        'aggregateId'      => $idValue,
                        'throwableMessage' => $throwable->getMessage(),
                        'throwablePoint'   => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
                    ]);

                    throw $throwable;
                }
            },
            $aggregate
        );
    }

    /**
     * Update existent event stream (append events).
     *
     * @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     * @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
     * @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
     *
     * @return Promise<array<int, object>>
     */
    public function update(Aggregate $aggregate): Promise
    {
        $store      = $this->store;
        $serializer = $this->serializer;
        $snaphotter = $this->snapshotter;
        $logger     = $this->logger;

        return call(
            static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
            {
                $id = $aggregate->id();

                $idValue = $id->toString();
                $idClass = \get_class($id);

                $logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}"', [
                    'aggregateIdClass' => $idClass,
                    'aggregateId'      => $idValue,
                ]);

                try
                {
                    /**
                     * @psalm-var array<int, object> $raisedEvents
                     *
                     * @var object[] $raisedEvents
                     */
                    $raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, false);

                    return $raisedEvents;
                }
                catch (\Throwable $throwable)
                {
                    $logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}', [
                        'aggregateIdClass' => $idClass,
                        'aggregateId'      => $idValue,
                        'throwableMessage' => $throwable->getMessage(),
                        'throwablePoint'   => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
                    ]);

                    throw $throwable;
                }
            },
            $aggregate
        );
    }

    /**
     * Revert aggregate to specified version.
     *
     * Mode options:
     *   - 1 (self::REVERT_MODE_SOFT_DELETE): Mark tail events as deleted (soft deletion). There may be version
     *   conflicts in some situations
     *   - 2 (self::REVERT_MODE_DELETE): Removes tail events from the database (the best option)
     *
     * @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     * @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
     * @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
     *
     * @return Promise<\ServiceBus\EventSourcing\Aggregate>
     */
    public function revert(Aggregate $aggregate, int $toVersion, int $mode = self::REVERT_MODE_SOFT_DELETE): Promise
    {
        $store      = $this->store;
        $serializer = $this->serializer;
        $snaphotter = $this->snapshotter;
        $logger     = $this->logger;

        return call(
            static function(Aggregate $aggregate, int $toVersion, int $mode) use ($store, $serializer, $snaphotter, $logger): \Generator
            {
                $id = $aggregate->id();

                $idValue = $id->toString();
                $idClass = \get_class($id);

                $logger->debug('Rollback of aggregate with identifier "{aggregateIdClass}:{aggregateId}" to version "{aggregateVersion}"', [
                    'aggregateIdClass' => $idClass,
                    'aggregateId'      => $idValue,
                    'aggregateVersion' => $toVersion,
                ]);

                try
                {
                    yield $store->revert($aggregate->id(), $toVersion, self::REVERT_MODE_DELETE === $mode);

                    /** @var StoredAggregateEventStream|null $storedEventStream */
                    $storedEventStream = yield $store->load($aggregate->id());

                    /** @var Aggregate $aggregate */
                    $aggregate = self::restoreStream($serializer, null, $storedEventStream);

                    yield $snaphotter->store(new Snapshot($aggregate, $aggregate->version()));

                    return $aggregate;
                }
                catch (\Throwable $throwable)
                {
                    $logger->debug('Error when rolling back the version of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}', [
                        'aggregateIdClass' => $idClass,
                        'aggregateId'      => $idValue,
                        'throwableMessage' => $throwable->getMessage(),
                        'throwablePoint'   => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
                    ]);

                    throw $throwable;
                }
                finally
                {
                    /** @psalm-suppress PossiblyUndefinedVariable */
                    unset($storedEventStream);
                }
            },
            $aggregate,
            $toVersion,
            $mode
        );
    }

    /**
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     * @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
     * @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
     * @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
     */
    private static function doStore(
        EventSerializer $eventSerializer,
        EventStreamStore $eventStreamStore,
        Snapshotter $snapshotter,
        Aggregate $aggregate,
        bool $isNew
    ): \Generator {
        /** @var \ServiceBus\EventSourcing\EventStream\AggregateEventStream $eventStream */
        $eventStream    = invokeReflectionMethod($aggregate, 'makeStream');
        $receivedEvents = $eventStream->originEvents;

        $storedEventStream = streamToStoredRepresentation($eventSerializer, $eventStream);

        /** @noinspection PhpUnnecessaryLocalVariableInspection */
        $promise = true === $isNew
            ? $eventStreamStore->save($storedEventStream)
            : $eventStreamStore->append($storedEventStream);

        yield $promise;

        /** @var \ServiceBus\EventSourcing\Snapshots\Snapshot|null $loadedSnapshot */
        $loadedSnapshot = yield $snapshotter->load($aggregate->id());

        if (true === $snapshotter->snapshotMustBeCreated($aggregate, $loadedSnapshot))
        {
            yield $snapshotter->store(new Snapshot($aggregate, $aggregate->version()));
        }

        unset($eventStream, $loadedSnapshot, $storedEventStream);

        return $receivedEvents;
    }

    /**
     * Restore the aggregate from the event stream/Add missing events to the aggregate from the snapshot.
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\EventSourcing\EventStream\Serializer\Exceptions\SerializeEventFailed
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     */
    private static function restoreStream(
        EventSerializer $eventSerializer,
        ?Aggregate $aggregate,
        ?StoredAggregateEventStream $storedEventStream
    ): ?Aggregate {
        if (null === $storedEventStream)
        {
            return null;
        }

        $eventStream = streamToDomainRepresentation($eventSerializer, $storedEventStream);

        if (null === $aggregate)
        {
            /**
             * @noinspection CallableParameterUseCaseInTypeContextInspection
             *
             * @var Aggregate $aggregate
             */
            $aggregate = createWithoutConstructor($storedEventStream->aggregateClass);
        }

        invokeReflectionMethod($aggregate, 'appendStream', $eventStream);

        return $aggregate;
    }
}


1		<?php
2
3		/**
4		* Event Sourcing implementation.
5		*
6		* @author Maksim Masiukevich <[email protected]>
7		* @license MIT
8		* @license https://opensource.org/licenses/MIT
9		*/
10
11		declare(strict_types = 1);
12
13		namespace ServiceBus\EventSourcing\EventStream;
14
15		use function Amp\call;
16		use function ServiceBus\Common\createWithoutConstructor;
17		use function ServiceBus\Common\invokeReflectionMethod;
18		use function ServiceBus\EventSourcing\EventStream\Store\streamToDomainRepresentation;
19		use function ServiceBus\EventSourcing\EventStream\Store\streamToStoredRepresentation;
20		use Amp\Promise;
21		use Psr\Log\LoggerInterface;
22		use Psr\Log\NullLogger;
23		use ServiceBus\EventSourcing\Aggregate;
24		use ServiceBus\EventSourcing\AggregateId;
25		use ServiceBus\EventSourcing\EventStream\Serializer\EventSerializer;
26		use ServiceBus\EventSourcing\EventStream\Store\EventStreamStore;
27		use ServiceBus\EventSourcing\EventStream\Store\StoredAggregateEventStream;
28		use ServiceBus\EventSourcing\Snapshots\Snapshot;
29		use ServiceBus\EventSourcing\Snapshots\Snapshotter;
30
31		/**
32		* Repository for working with event streams.
33		*/
34		final class EventStreamRepository
35		{
36		public const REVERT_MODE_SOFT_DELETE = 1;
37
38		public const REVERT_MODE_DELETE = 2;
39
40		private EventStreamStore $store;
41
42		private EventSerializer $serializer;
43
44		private Snapshotter $snapshotter;
45
46		private LoggerInterface $logger;
47
48	8	public function __construct(
49		EventStreamStore $store,
50		Snapshotter $snapshotter,
51		EventSerializer $serializer,
52		?LoggerInterface $logger = null
53		) {
54	8	$this->store = $store;
55	8	$this->snapshotter = $snapshotter;
56	8	$this->serializer = $serializer;
57	8	$this->logger = $logger ?? new NullLogger();
58	8	}
59
60		/**
61		* Load aggregate.
62		*
63		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
64		*
65		* @throws \ServiceBus\Common\Exceptions\DateTimeException
66		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
67		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
68		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
69		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
70		*
71		* @return Promise<\ServiceBus\EventSourcing\Aggregate\|null>
72		*/
73	2	public function load(AggregateId $id): Promise
74		{
75	2	$store = $this->store;
76	2	$serializer = $this->serializer;
77	2	$snaphotter = $this->snapshotter;
78	2	$logger = $this->logger;
79
80	2	return call(
81		static function(AggregateId $id) use ($store, $serializer, $snaphotter, $logger): \Generator
82		{
83	2	$idValue = $id->toString();
84	2	$idClass = \get_class($id);
85
86	2	$logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}"', [
87	2	'aggregateIdClass' => $idClass,
88	2	'aggregateId' => $idValue,
89		]);
90
91		try
92		{
93	2	$aggregate = null;
94	2	$fromStreamVersion = Aggregate::START_PLAYHEAD_INDEX;
95
96		/** @var \ServiceBus\EventSourcing\Snapshots\Snapshot\|null $loadedSnapshot */
97	2	$loadedSnapshot = yield $snaphotter->load($id);
98
99	2	if (null !== $loadedSnapshot)
100		{
101	1	$aggregate = $loadedSnapshot->aggregate;
102	1	$fromStreamVersion = $aggregate->version() + 1;
103
104	1	$logger->debug(
105	1	'Found a snapshot of the state of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}" on version "{aggregateVersion}"',
106		[
107	1	'aggregateIdClass' => $idClass,
108	1	'aggregateId' => $idValue,
109	1	'aggregateVersion' => $aggregate->version(),
110		]
111		);
112		}
113
114		/** @var \ServiceBus\EventSourcing\EventStream\Store\StoredAggregateEventStream\|null $storedEventStream */
115	2	$storedEventStream = yield $store->load($id, $fromStreamVersion);
116
117	2	$aggregate = self::restoreStream($serializer, $aggregate, $storedEventStream);
118
119	1	return $aggregate;
120		}
121	1	catch (\Throwable $throwable)
122		{
123	1	$logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}" failed', [
124	1	'aggregateIdClass' => $idClass,
125	1	'aggregateId' => $idValue,
126	1	'throwableMessage' => $throwable->getMessage(),
127	1	'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
128		]);
129
130	1	throw $throwable;
131		}
132		finally
133		{
134		/** @psalm-suppress PossiblyUndefinedVariable */
135	2	unset($storedEventStream, $loadedSnapshot, $fromStreamVersion);
136		}
137	2	},
138	2	$id
139		);
140		}
141
142		/**
143		* Save a new event stream.
144		*
145		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
146		*
147		* @throws \ServiceBus\Common\Exceptions\DateTimeException
148		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
149		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
150		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
151		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
152		* @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
153		*
154		* @return Promise<array<int, object>>
155		*/
156	7	public function save(Aggregate $aggregate): Promise
157		{
158	7	$store = $this->store;
159	7	$serializer = $this->serializer;
160	7	$snaphotter = $this->snapshotter;
161	7	$logger = $this->logger;
162
163	7	return call(
164		static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
165		{
166	7	$id = $aggregate->id();
167
168	7	$idValue = $id->toString();
169	7	$idClass = \get_class($id);
170
171	7	$logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}"', [
172	7	'aggregateIdClass' => $idClass,
173	7	'aggregateId' => $idValue,
174		]);
175
176		try
177		{
178		/**
179		* @psalm-var array<int, object> $raisedEvents
180		*
181		* @var object[] $raisedEvents
182		*/
183	7	$raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, true);
184
185	7	return $raisedEvents;
186		}
187	1	catch (\Throwable $throwable)
188		{
189	1	$logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}" failed', [
190	1	'aggregateIdClass' => $idClass,
191	1	'aggregateId' => $idValue,
192	1	'throwableMessage' => $throwable->getMessage(),
193	1	'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
194		]);
195
196	1	throw $throwable;
197		}
198	7	},
199	7	$aggregate
200		);
201		}
202
203		/**
204		* Update existent event stream (append events).
205		*
206		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
207		*
208		* @throws \ServiceBus\Common\Exceptions\DateTimeException
209		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
210		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
211		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
212		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
213		*
214		* @return Promise<array<int, object>>
215		*/
216	4	public function update(Aggregate $aggregate): Promise
217		{
218	4	$store = $this->store;
219	4	$serializer = $this->serializer;
220	4	$snaphotter = $this->snapshotter;
221	4	$logger = $this->logger;
222
223	4	return call(
224		static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
225		{
226	4	$id = $aggregate->id();
227
228	4	$idValue = $id->toString();
229	4	$idClass = \get_class($id);
230
231	4	$logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}"', [
232	4	'aggregateIdClass' => $idClass,
233	4	'aggregateId' => $idValue,
234		]);
235
236		try
237		{
238		/**
239		* @psalm-var array<int, object> $raisedEvents
240		*
241		* @var object[] $raisedEvents
242		*/
243	4	$raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, false);
244
245	4	return $raisedEvents;
246		}
247		catch (\Throwable $throwable)
248		{
249		$logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}', [
250		'aggregateIdClass' => $idClass,
251		'aggregateId' => $idValue,
252		'throwableMessage' => $throwable->getMessage(),
253		'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
254		]);
255
256		throw $throwable;
257		}
258	4	},
259	4	$aggregate
260		);
261		}
262
263		/**
264		* Revert aggregate to specified version.
265		*
266		* Mode options:
267		* - 1 (self::REVERT_MODE_SOFT_DELETE): Mark tail events as deleted (soft deletion). There may be version
268		* conflicts in some situations
269		* - 2 (self::REVERT_MODE_DELETE): Removes tail events from the database (the best option)
270		*
271		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
272		*
273		* @throws \ServiceBus\Common\Exceptions\DateTimeException
274		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
275		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
276		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
277		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
278		*
279		* @return Promise<\ServiceBus\EventSourcing\Aggregate>
280		*/
281	4	public function revert(Aggregate $aggregate, int $toVersion, int $mode = self::REVERT_MODE_SOFT_DELETE): Promise
282		{
283	4	$store = $this->store;
284	4	$serializer = $this->serializer;
285	4	$snaphotter = $this->snapshotter;
286	4	$logger = $this->logger;
287
288	4	return call(
289		static function(Aggregate $aggregate, int $toVersion, int $mode) use ($store, $serializer, $snaphotter, $logger): \Generator
290		{
291	4	$id = $aggregate->id();
292
293	4	$idValue = $id->toString();
294	4	$idClass = \get_class($id);
295
296	4	$logger->debug('Rollback of aggregate with identifier "{aggregateIdClass}:{aggregateId}" to version "{aggregateVersion}"', [
297	4	'aggregateIdClass' => $idClass,
298	4	'aggregateId' => $idValue,
299	4	'aggregateVersion' => $toVersion,
300		]);
301
302		try
303		{
304	4	yield $store->revert($aggregate->id(), $toVersion, self::REVERT_MODE_DELETE === $mode);
305
306		/** @var StoredAggregateEventStream\|null $storedEventStream */
307	3	$storedEventStream = yield $store->load($aggregate->id());
308
309		/** @var Aggregate $aggregate */
310	3	$aggregate = self::restoreStream($serializer, null, $storedEventStream);
311
312		yield $snaphotter->store(new Snapshot($aggregate, $aggregate->version()));
313
314		return $aggregate;
315		}
316	4	catch (\Throwable $throwable)
317		{
318	4	$logger->debug('Error when rolling back the version of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}', [
319	4	'aggregateIdClass' => $idClass,
320	4	'aggregateId' => $idValue,
321	4	'throwableMessage' => $throwable->getMessage(),
322	4	'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
323		]);
324
325	4	throw $throwable;
326		}
327		finally
328		{
329		/** @psalm-suppress PossiblyUndefinedVariable */
330	4	unset($storedEventStream);
331		}
332	4	},
333	4	$aggregate,
334	4	$toVersion,
335	4	$mode
336		);
337		}
338
339		/**
340		* @throws \ServiceBus\Common\Exceptions\DateTimeException
341		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
342		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
343		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
344		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
345		* @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
346		*/
347	7	private static function doStore(
348		EventSerializer $eventSerializer,
349		EventStreamStore $eventStreamStore,
350		Snapshotter $snapshotter,
351		Aggregate $aggregate,
352		bool $isNew
353		): \Generator {
354		/** @var \ServiceBus\EventSourcing\EventStream\AggregateEventStream $eventStream */
355	7	$eventStream = invokeReflectionMethod($aggregate, 'makeStream');
356	7	$receivedEvents = $eventStream->originEvents;
357
358	7	$storedEventStream = streamToStoredRepresentation($eventSerializer, $eventStream);
359
360		/** @noinspection PhpUnnecessaryLocalVariableInspection */
361	7	$promise = true === $isNew
362	7	? $eventStreamStore->save($storedEventStream)
363	7	: $eventStreamStore->append($storedEventStream);
364
365	7	yield $promise;
366
367		/** @var \ServiceBus\EventSourcing\Snapshots\Snapshot\|null $loadedSnapshot */
368	7	$loadedSnapshot = yield $snapshotter->load($aggregate->id());
369
370	7	if (true === $snapshotter->snapshotMustBeCreated($aggregate, $loadedSnapshot))
371		{
372	7	yield $snapshotter->store(new Snapshot($aggregate, $aggregate->version()));
373		}
374
375	7	unset($eventStream, $loadedSnapshot, $storedEventStream);
376
377	7	return $receivedEvents;
378		}
379
380		/**
381		* Restore the aggregate from the event stream/Add missing events to the aggregate from the snapshot.
382		*
383		* @throws \ServiceBus\Common\Exceptions\DateTimeException
384		* @throws \ServiceBus\EventSourcing\EventStream\Serializer\Exceptions\SerializeEventFailed
385		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
386		*/
387	5	private static function restoreStream(
388		EventSerializer $eventSerializer,
389		?Aggregate $aggregate,
390		?StoredAggregateEventStream $storedEventStream
391		): ?Aggregate {
392	5	if (null === $storedEventStream)
393		{
394		return null;
395		}
396
397	5	$eventStream = streamToDomainRepresentation($eventSerializer, $storedEventStream);
398
399	1	if (null === $aggregate)
400		{
401		/**
402		* @noinspection CallableParameterUseCaseInTypeContextInspection
403		*
404		* @var Aggregate $aggregate
405		*/
406		$aggregate = createWithoutConstructor($storedEventStream->aggregateClass);
407		}
408
409	1	invokeReflectionMethod($aggregate, 'appendStream', $eventStream);
410
411	1	return $aggregate;
412		}
413		}
414

php-service-bus / event-sourcing

Push — v4.0 ( 989be1...ff495d )

EventStreamRepository::revert() A

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