EventStreamRepository::load() - Code Metrics - Inspection of "Merge remote-tracking branch 'origin/v3.3' into v3..." - php-service-bus/event-sourcing - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — v3.3 ( 1e1106...84677f )

by Masiukevich

created 2019-08-20 21:55 UTC

EventStreamRepository::load() A

↳ Parent: EventStreamRepository

Complexity

Conditions	3
Paths	1

Size

Total Lines	66
Code Lines	36

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	28
CRAP Score	3.072

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	36
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	66
ccs	28
cts	35
cp	0.8
crap	3.072
rs	9.344

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;

    /**
     * @var EventStreamStore
     */
    private $store;

    /**
     * @var EventSerializer
     */
    private $serializer;

    /**
     * @var Snapshotter
     */
    private $snapshotter;

    /**
     * @var LoggerInterface
     */
    private $logger;

    /**
     * @param EventStreamStore     $store
     * @param Snapshotter          $snapshotter
     * @param EventSerializer      $serializer
     * @param LoggerInterface|null $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
     *
     * @param AggregateId $id
     *
     * @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;

        /** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
        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 $throwable;
                }
                finally
                {
                    unset($storedEventStream, $loadedSnapshot, $fromStreamVersion);
                }
            },
            $id
        );
    }

    /**
     * Save a new event stream.
     *
     * @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
     *
     * @param Aggregate $aggregate
     *
     * @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;

        /** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
        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
     *
     * @param Aggregate $aggregate
     *
     * @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;

        /** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
        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
     *
     * @param Aggregate $aggregate
     * @param int       $toVersion
     * @param int       $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
     *
     * @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;

        /** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
        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 $snaphotter->store(Snapshot::create($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 $throwable;
                }
                finally
                {
                    unset($storedEventStream);
                }
            },
            $aggregate,
            $toVersion,
            $mode
        );
    }

    /**
     * @param EventSerializer  $eventSerializer
     * @param EventStreamStore $eventStreamStore
     * @param Snapshotter      $snapshotter
     * @param Aggregate        $aggregate
     * @param bool             $isNew
     *
     * @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 \Generator
     */
    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);

        $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 $snapshotter->store(Snapshot::create($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.
     *
     * @param EventSerializer                 $eventSerializer
     * @param Aggregate|null                  $aggregate
     * @param StoredAggregateEventStream|null $storedEventStream
     *
     * @throws \ServiceBus\Common\Exceptions\DateTimeException
     * @throws \ServiceBus\EventSourcing\EventStream\Serializer\Exceptions\SerializeEventFailed
     * @throws \ServiceBus\Common\Exceptions\ReflectionApiException
     *
     * @return Aggregate|null
     */
    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		/**
41		* @var EventStreamStore
42		*/
43		private $store;
44
45		/**
46		* @var EventSerializer
47		*/
48		private $serializer;
49
50		/**
51		* @var Snapshotter
52		*/
53		private $snapshotter;
54
55		/**
56		* @var LoggerInterface
57		*/
58		private $logger;
59
60		/**
61		* @param EventStreamStore $store
62		* @param Snapshotter $snapshotter
63		* @param EventSerializer $serializer
64		* @param LoggerInterface\|null $logger
65		*/
66	8	public function __construct(
67		EventStreamStore $store,
68		Snapshotter $snapshotter,
69		EventSerializer $serializer,
70		?LoggerInterface $logger = null
71		) {
72	8	$this->store = $store;
73	8	$this->snapshotter = $snapshotter;
74	8	$this->serializer = $serializer;
75	8	$this->logger = $logger ?? new NullLogger();
76	8	}
77
78		/**
79		* Load aggregate.
80		*
81		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
82		*
83		* @param AggregateId $id
84		*
85		* @throws \ServiceBus\Common\Exceptions\DateTimeException
86		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
87		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
88		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
89		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
90		*
91		* @return Promise<\ServiceBus\EventSourcing\Aggregate\|null>
92		*/
93	2	public function load(AggregateId $id): Promise
94		{
95	2	$store = $this->store;
96	2	$serializer = $this->serializer;
97	2	$snaphotter = $this->snapshotter;
98	2	$logger = $this->logger;
99
100		/** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
101	2	return call(
102		static function(AggregateId $id) use ($store, $serializer, $snaphotter, $logger): \Generator
103		{
104	2	$idValue = $id->toString();
105	2	$idClass = \get_class($id);
106
107	2	$logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}"', [
108	2	'aggregateIdClass' => $idClass,
109	2	'aggregateId' => $idValue,
110		]);
111
112		try
113		{
114	2	$aggregate = null;
115	2	$fromStreamVersion = Aggregate::START_PLAYHEAD_INDEX;
116
117		/** @var \ServiceBus\EventSourcing\Snapshots\Snapshot\|null $loadedSnapshot */
118	2	$loadedSnapshot = yield $snaphotter->load($id);
119
120	2	if (null !== $loadedSnapshot)
121		{
122	1	$aggregate = $loadedSnapshot->aggregate;
123	1	$fromStreamVersion = $aggregate->version() + 1;
124
125	1	$logger->debug(
126	1	'Found a snapshot of the state of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}" on version "{aggregateVersion}"',
127		[
128	1	'aggregateIdClass' => $idClass,
129	1	'aggregateId' => $idValue,
130	1	'aggregateVersion' => $aggregate->version(),
131		]
132		);
133		}
134
135		/** @var \ServiceBus\EventSourcing\EventStream\Store\StoredAggregateEventStream\|null $storedEventStream */
136	2	$storedEventStream = yield $store->load($id, $fromStreamVersion);
137
138	2	$aggregate = self::restoreStream($serializer, $aggregate, $storedEventStream);
139
140	2	return $aggregate;
141		}
142		catch (\Throwable $throwable)
143		{
144		$logger->debug('Load aggregate with id "{aggregateIdClass}:{aggregateId}" failed', [
145		'aggregateIdClass' => $idClass,
146		'aggregateId' => $idValue,
147		'throwableMessage' => $throwable->getMessage(),
148		'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
149		]);
150
151		throw $throwable;
152		}
153		finally
154		{
155	2	unset($storedEventStream, $loadedSnapshot, $fromStreamVersion);
156		}
157	2	},
158	2	$id
159		);
160		}
161
162		/**
163		* Save a new event stream.
164		*
165		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
166		*
167		* @param Aggregate $aggregate
168		*
169		* @throws \ServiceBus\Common\Exceptions\DateTimeException
170		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
171		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
172		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
173		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
174		* @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
175		*
176		* @return Promise<array<int, object>>
177		*/
178	7	public function save(Aggregate $aggregate): Promise
179		{
180	7	$store = $this->store;
181	7	$serializer = $this->serializer;
182	7	$snaphotter = $this->snapshotter;
183	7	$logger = $this->logger;
184
185		/** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
186	7	return call(
187		static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
188		{
189	7	$id = $aggregate->id();
190
191	7	$idValue = $id->toString();
192	7	$idClass = \get_class($id);
193
194	7	$logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}"', [
195	7	'aggregateIdClass' => $idClass,
196	7	'aggregateId' => $idValue,
197		]);
198
199		try
200		{
201		/**
202		* @psalm-var array<int, object> $raisedEvents
203		*
204		* @var object[] $raisedEvents
205		*/
206	7	$raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, true);
207
208	7	return $raisedEvents;
209		}
210	1	catch (\Throwable $throwable)
211		{
212	1	$logger->debug('Save new aggregate with identifier "{aggregateIdClass}:{aggregateId}" failed', [
213	1	'aggregateIdClass' => $idClass,
214	1	'aggregateId' => $idValue,
215	1	'throwableMessage' => $throwable->getMessage(),
216	1	'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
217		]);
218
219	1	throw $throwable;
220		}
221	7	},
222	7	$aggregate
223		);
224		}
225
226		/**
227		* Update existent event stream (append events).
228		*
229		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
230		*
231		* @param Aggregate $aggregate
232		*
233		* @throws \ServiceBus\Common\Exceptions\DateTimeException
234		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
235		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
236		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
237		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
238		*
239		* @return Promise<array<int, object>>
240		*/
241	5	public function update(Aggregate $aggregate): Promise
242		{
243	5	$store = $this->store;
244	5	$serializer = $this->serializer;
245	5	$snaphotter = $this->snapshotter;
246	5	$logger = $this->logger;
247
248		/** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
249	5	return call(
250		static function(Aggregate $aggregate) use ($store, $serializer, $snaphotter, $logger): \Generator
251		{
252	5	$id = $aggregate->id();
253
254	5	$idValue = $id->toString();
255	5	$idClass = \get_class($id);
256
257	5	$logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}"', [
258	5	'aggregateIdClass' => $idClass,
259	5	'aggregateId' => $idValue,
260		]);
261
262		try
263		{
264		/**
265		* @psalm-var array<int, object> $raisedEvents
266		*
267		* @var object[] $raisedEvents
268		*/
269	5	$raisedEvents = yield from self::doStore($serializer, $store, $snaphotter, $aggregate, false);
270
271	5	return $raisedEvents;
272		}
273		catch (\Throwable $throwable)
274		{
275		$logger->debug('Adding events to an existing stream with identifier "{aggregateIdClass}:{aggregateId}', [
276		'aggregateIdClass' => $idClass,
277		'aggregateId' => $idValue,
278		'throwableMessage' => $throwable->getMessage(),
279		'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
280		]);
281
282		throw $throwable;
283		}
284	5	},
285	5	$aggregate
286		);
287		}
288
289		/**
290		* Revert aggregate to specified version.
291		*
292		* Mode options:
293		* - 1 (self::REVERT_MODE_SOFT_DELETE): Mark tail events as deleted (soft deletion). There may be version
294		* conflicts in some situations
295		* - 2 (self::REVERT_MODE_DELETE): Removes tail events from the database (the best option)
296		*
297		* @psalm-suppress MixedTypeCoercion Incorrect resolving the value of the promise
298		*
299		* @param Aggregate $aggregate
300		* @param int $toVersion
301		* @param int $mode
302		*
303		* @throws \ServiceBus\Common\Exceptions\DateTimeException
304		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
305		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
306		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
307		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
308		*
309		* @return Promise<\ServiceBus\EventSourcing\Aggregate>
310		*/
311	4	public function revert(Aggregate $aggregate, int $toVersion, int $mode = self::REVERT_MODE_SOFT_DELETE): Promise
312		{
313	4	$store = $this->store;
314	4	$serializer = $this->serializer;
315	4	$snaphotter = $this->snapshotter;
316	4	$logger = $this->logger;
317
318		/** @psalm-suppress InvalidArgument Incorrect psalm unpack parameters (...$args) */
319	4	return call(
320		static function(Aggregate $aggregate, int $toVersion, int $mode) use ($store, $serializer, $snaphotter, $logger): \Generator
321		{
322	4	$id = $aggregate->id();
323
324	4	$idValue = $id->toString();
325	4	$idClass = \get_class($id);
326
327	4	$logger->debug('Rollback of aggregate with identifier "{aggregateIdClass}:{aggregateId}" to version "{aggregateVersion}"', [
328	4	'aggregateIdClass' => $idClass,
329	4	'aggregateId' => $idValue,
330	4	'aggregateVersion' => $toVersion,
331		]);
332
333		try
334		{
335	4	yield $store->revert($aggregate->id(), $toVersion, self::REVERT_MODE_DELETE === $mode);
336
337		/** @var StoredAggregateEventStream\|null $storedEventStream */
338	3	$storedEventStream = yield $store->load($aggregate->id());
339
340		/** @var Aggregate $aggregate */
341	3	$aggregate = self::restoreStream($serializer, null, $storedEventStream);
342
343	3	yield $snaphotter->store(Snapshot::create($aggregate, $aggregate->version()));
344
345	3	return $aggregate;
346		}
347	2	catch (\Throwable $throwable)
348		{
349	2	$logger->debug('Error when rolling back the version of the aggregate with the identifier "{aggregateIdClass}:{aggregateId}', [
350	2	'aggregateIdClass' => $idClass,
351	2	'aggregateId' => $idValue,
352	2	'throwableMessage' => $throwable->getMessage(),
353	2	'throwablePoint' => \sprintf('%s:%d', $throwable->getFile(), $throwable->getLine()),
354		]);
355
356	2	throw $throwable;
357		}
358		finally
359		{
360	4	unset($storedEventStream);
361		}
362	4	},
363	4	$aggregate,
364	4	$toVersion,
365	4	$mode
366		);
367		}
368
369		/**
370		* @param EventSerializer $eventSerializer
371		* @param EventStreamStore $eventStreamStore
372		* @param Snapshotter $snapshotter
373		* @param Aggregate $aggregate
374		* @param bool $isNew
375		*
376		* @throws \ServiceBus\Common\Exceptions\DateTimeException
377		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
378		* @throws \ServiceBus\Storage\Common\Exceptions\ConnectionFailed
379		* @throws \ServiceBus\Storage\Common\Exceptions\InvalidConfigurationOptions
380		* @throws \ServiceBus\Storage\Common\Exceptions\StorageInteractingFailed
381		* @throws \ServiceBus\Storage\Common\Exceptions\UniqueConstraintViolationCheckFailed
382		*
383		* @return \Generator
384		*/
385	7	private static function doStore(
386		EventSerializer $eventSerializer,
387		EventStreamStore $eventStreamStore,
388		Snapshotter $snapshotter,
389		Aggregate $aggregate,
390		bool $isNew
391		): \Generator {
392		/** @var \ServiceBus\EventSourcing\EventStream\AggregateEventStream $eventStream */
393	7	$eventStream = invokeReflectionMethod($aggregate, 'makeStream');
394	7	$receivedEvents = $eventStream->originEvents;
395
396	7	$storedEventStream = streamToStoredRepresentation($eventSerializer, $eventStream);
397
398	7	$promise = true === $isNew
399	7	? $eventStreamStore->save($storedEventStream)
400	7	: $eventStreamStore->append($storedEventStream);
401
402	7	yield $promise;
403
404		/** @var \ServiceBus\EventSourcing\Snapshots\Snapshot\|null $loadedSnapshot */
405	7	$loadedSnapshot = yield $snapshotter->load($aggregate->id());
406
407	7	if (true === $snapshotter->snapshotMustBeCreated($aggregate, $loadedSnapshot))
408		{
409	7	yield $snapshotter->store(Snapshot::create($aggregate, $aggregate->version()));
410		}
411
412	7	unset($eventStream, $loadedSnapshot, $storedEventStream);
413
414	7	return $receivedEvents;
415		}
416
417		/**
418		* Restore the aggregate from the event stream/Add missing events to the aggregate from the snapshot.
419		*
420		* @param EventSerializer $eventSerializer
421		* @param Aggregate\|null $aggregate
422		* @param StoredAggregateEventStream\|null $storedEventStream
423		*
424		* @throws \ServiceBus\Common\Exceptions\DateTimeException
425		* @throws \ServiceBus\EventSourcing\EventStream\Serializer\Exceptions\SerializeEventFailed
426		* @throws \ServiceBus\Common\Exceptions\ReflectionApiException
427		*
428		* @return Aggregate\|null
429		*/
430	5	private static function restoreStream(
431		EventSerializer $eventSerializer,
432		?Aggregate $aggregate,
433		?StoredAggregateEventStream $storedEventStream
434		): ?Aggregate {
435	5	if (null === $storedEventStream)
436		{
437		return null;
438		}
439
440	5	$eventStream = streamToDomainRepresentation($eventSerializer, $storedEventStream);
441
442	5	if (null === $aggregate)
443		{
444		/**
445		* @noinspection CallableParameterUseCaseInTypeContextInspection
446		*
447		* @var Aggregate $aggregate
448		*/
449	4	$aggregate = createWithoutConstructor($storedEventStream->aggregateClass);
450		}
451
452	5	invokeReflectionMethod($aggregate, 'appendStream', $eventStream);
453
454	5	return $aggregate;
455		}
456		}
457

php-service-bus / event-sourcing

Push — v3.3 ( 1e1106...84677f )

EventStreamRepository::load() A

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