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Kai Moritz [Mon, 9 Jan 2023 21:35:40 +0000 (22:35 +0100)]
refactor: `FileStorageStrategy` is not bound to `InMemoryChatRoomService`
Kai Moritz [Mon, 9 Jan 2023 21:23:35 +0000 (22:23 +0100)]
refactor: Moved classes in package `persistence` in sub-packages -- Rename
Kai Moritz [Mon, 9 Jan 2023 21:18:18 +0000 (22:18 +0100)]
refactor: Moved classes in package `persistence` in sub-packages -- Move
Kai Moritz [Mon, 9 Jan 2023 20:37:55 +0000 (21:37 +0100)]
refactor: Introduced `AbstractStorageStrategyIT` as base for more tests
- Moved the test-logic, that does not depend on implementation-details
into an abstract base-class `AbstractStorageStrategyID`.
- `LocalJsonFilesStorageStrategyIT` extends this class and only instances
for that specific implementation and the accompanying setup.
Kai Moritz [Mon, 9 Jan 2023 20:14:35 +0000 (21:14 +0100)]
fix: `ChatBackendApplicationTest` cannot corrupt the real data anymore
- The test used the default storage-direcory.
- Because the app is sometimes aborted during the shutdown, this sometimes
lead to corrupted data in the default storage-directory.
- The test now uses a predefined set of data underneath the build-directory.
- Also changed the name of the according property to `storage-directory`.
Kai Moritz [Mon, 9 Jan 2023 19:51:20 +0000 (20:51 +0100)]
fix: Refined `ChatBackendControllerTest` and fixed a bug in `ChatRoom`
- Only `ChatHomeService` and `ChatRoomService` are mocked.
- This makes the test more robust, because there are less sources for
false positives or wron negatives because of wrongly mocked behaviour.
- Aforementioned is proofed by an unnoticed bug, that was discoverd by
the freshly refined test.
Kai Moritz [Mon, 9 Jan 2023 18:52:05 +0000 (19:52 +0100)]
feat: Moved persistence-logic from `ChatHome` into `ChatHomeService`
- Aligned configuration and tests accordingly.
- Also fixed some camel-case typos.
Kai Moritz [Sun, 8 Jan 2023 20:30:57 +0000 (21:30 +0100)]
refactor: Moved business-logic from `ChatRoomService` into `ChatRoom`
- Some essential business-logic -- the identification of mutated messages --
was buried in `InMemoryChatRoomService`.
- This business-logic was moved into `ChatRoom`, becaus otherwise, it
would have been necessary, to reproduce this logic in each and every
new implementation of `ChatRoomService`, which would have been exhausting
and errorprone.
- This allowed also cleaner code in `InMemoryChatRoomService`, that
can focus on the persistence-logic.
- The implementation of `MessageMutationException` and the look of the
accompanying problem-details hat to be refined accordingly.
Kai Moritz [Sun, 8 Jan 2023 20:13:39 +0000 (21:13 +0100)]
fix: Asserted, that `ChatHome` acts, as expected, if asked for a `ChatRoom`
Kai Moritz [Sun, 8 Jan 2023 15:28:17 +0000 (16:28 +0100)]
refactor: Streamlined the API of the services
- `ChatRoomService` and `ChatHomeService` both return only reactive types.
- The decission stems from the wish, to become reactive all the way from
the client to the technical implementation of the backend-services.
- This faciliates the mapping of the results in `ChatBackendController`.
- The refactoring already simplified lots of code, where a `Flux` has
to derived from the `Stream`, yielding a good feeling about the plan,
that is pursued with this refactoring.
- The refactoring also lead to the decision that `UnknownChatroomException`
realy is a business-logic-exception (that according refactoring was
already performed in the previous commits, to ceap this commit clean).
Kai Moritz [Sun, 8 Jan 2023 15:21:17 +0000 (16:21 +0100)]
refactor: `UnknownChatroomException` is a business-exception - Relocate
Kai Moritz [Sun, 8 Jan 2023 15:20:53 +0000 (16:20 +0100)]
refactor: `UnknownChatroomException` is a business-exception - Move
Kai Moritz [Sun, 8 Jan 2023 18:47:43 +0000 (19:47 +0100)]
fix: Fixed generated problem-details for mutated messages
Kai Moritz [Sun, 8 Jan 2023 16:14:56 +0000 (17:14 +0100)]
feat: Implemented problem-details for `UnknownChatroomException`
- Implemented an `@ExceptionHandler` for `UnknownChatroomException`.
- Implemented `ChatBackendControllerTest`
- Asserted, that the problem-details are generated as expected
- Pinned down problems, that yield a refactoring and have to
be resolved afterwards.
Kai Moritz [Sun, 8 Jan 2023 15:09:30 +0000 (16:09 +0100)]
refactor: Added assertj-reactor for more readability
Kai Moritz [Sun, 8 Jan 2023 11:28:32 +0000 (12:28 +0100)]
test: `LocalJsonFilesStorageStrategyIT` asserts, that the state is restored
Kai Moritz [Sun, 8 Jan 2023 11:02:33 +0000 (12:02 +0100)]
fix: Implemented a test for `MessageTo` and fixed deserialization
Kai Moritz [Sun, 8 Jan 2023 10:14:45 +0000 (11:14 +0100)]
test: Implemented a first IT for `LocalJsonFilesStorageStrategy`
- This first version of the test does not realy test the storing.
- It is only a proof-of-concept for the setup.
Kai Moritz [Sun, 8 Jan 2023 09:57:25 +0000 (10:57 +0100)]
refactor: The `ChatRoom` determines the timestamp of a `Message`
Kai Moritz [Sun, 8 Jan 2023 09:34:09 +0000 (10:34 +0100)]
refactore: Renamed `ChatroomService` to `ChatRoomService` -- Rename
Kai Moritz [Sun, 8 Jan 2023 09:34:02 +0000 (10:34 +0100)]
refactore: Renamed `ChatroomService` to `ChatRoomService` -- Move
Kai Moritz [Sun, 8 Jan 2023 09:20:56 +0000 (10:20 +0100)]
refactore: Renamed `ChatroomTo` to `ChatRoomTo` -- Rename
Kai Moritz [Sun, 8 Jan 2023 09:19:47 +0000 (10:19 +0100)]
refactore: Renamed `Chatroom` to `ChatRoom` -- Rename
Kai Moritz [Sun, 8 Jan 2023 09:17:49 +0000 (10:17 +0100)]
refactore: Renamed `ChatroomFactory` to `ChatHomeService` -- Rename
Kai Moritz [Sun, 8 Jan 2023 09:17:34 +0000 (10:17 +0100)]
refactore: Renamed `ChatroomFactory` to `ChatHomeService` -- Move
Kai Moritz [Sun, 8 Jan 2023 09:10:46 +0000 (10:10 +0100)]
refactore: Renamed `PersistenceStrategy` to `ChatroomService` -- Rename
Kai Moritz [Sun, 8 Jan 2023 09:10:34 +0000 (10:10 +0100)]
refactore: Renamed `PersistenceStrategy` to `ChatroomService` -- Move
Kai Moritz [Sun, 8 Jan 2023 08:53:03 +0000 (09:53 +0100)]
refactor: Only `LocalJsonFileStorageStrategy` restores `Chatroom`s
Kai Moritz [Sat, 7 Jan 2023 23:47:22 +0000 (00:47 +0100)]
feat: Added an endpoint that list all messages of a chatroom
Kai Moritz [Sat, 7 Jan 2023 20:58:27 +0000 (21:58 +0100)]
refactor: `LocalJsonFilesStorageStrategy` is now realy reactive
Kai Moritz [Sat, 7 Jan 2023 01:16:57 +0000 (02:16 +0100)]
fix: The sink is recreated, if it gets canceled
- The sink is automatically cancelled, if the last consumer leaves.
- Turning auto-cancel of, is not an option, because this buffers new
messages, until the buffer overflows, after which new messages are
droped. Hence, if a new subscriber arrives, it would see some old
messages and then, after a gap, current messages.
- Because of that, the sink is now automatically recreated, if the
last subscriber leaves and triggers the automatically cancelation
of the sink.
- The sink can be recreated without conflicts, because all methods,
that may access the sink are synchronized.
Kai Moritz [Sat, 7 Jan 2023 00:41:34 +0000 (01:41 +0100)]
feat: Server sends real Server-Sent-Events
Kai Moritz [Sat, 7 Jan 2023 20:05:30 +0000 (21:05 +0100)]
feat: The size buffer for listeners to a chatroom is configurable
Kai Moritz [Fri, 6 Jan 2023 00:45:58 +0000 (01:45 +0100)]
feat: Allowed the frontend as origin for CORS
Kai Moritz [Fri, 6 Jan 2023 00:33:51 +0000 (01:33 +0100)]
feat: Added a POST-mapping to force the storing of the data
Kai Moritz [Thu, 5 Jan 2023 23:44:44 +0000 (00:44 +0100)]
refactor: Fixed return-types of the controller
- Renamed and moved `ChatroomInfo` to `ChatroomTo`
- Switched return-types from `Chatroom` to `ChatroomTo`
Kai Moritz [Sat, 7 Jan 2023 20:00:50 +0000 (21:00 +0100)]
fix: `Chatroom`s must not share an instance of `PersistanceStrategy`
Kai Moritz [Thu, 5 Jan 2023 15:09:04 +0000 (16:09 +0100)]
feat: The chats are stored as local json-files
Kai Moritz [Sat, 7 Jan 2023 19:29:32 +0000 (20:29 +0100)]
feat: `ChatHome` returns an `Optional` for `getChatroom(UUID)`
Kai Moritz [Thu, 5 Jan 2023 18:18:50 +0000 (19:18 +0100)]
feat: Introduced `ChatHome` that gives multiple `Chatroom`s a home
Kai Moritz [Wed, 28 Dec 2022 18:20:51 +0000 (19:20 +0100)]
refactor: Moved configuration in a separate class and made it more explicit
Kai Moritz [Wed, 28 Dec 2022 17:09:06 +0000 (18:09 +0100)]
refactor: Introduced `ChatroomFactory`
- `ChatBackendController` only has to know of the `ChatroomFactory`.
- `ChatBackendController` does not have to know the `PersistenceStrategy`.
Kai Moritz [Wed, 28 Dec 2022 16:53:46 +0000 (17:53 +0100)]
refactor: Moved persistence-logic into a pluggable strategy
Kai Moritz [Wed, 28 Dec 2022 16:48:01 +0000 (17:48 +0100)]
refactor: A `Message` now explicitly has a `MessageKey`
Kai Moritz [Wed, 28 Dec 2022 16:38:00 +0000 (17:38 +0100)]
refactor: Streamlined API of `Chatroom` - all return-types are reactive
Kai Moritz [Wed, 28 Dec 2022 16:23:30 +0000 (17:23 +0100)]
refactor: Refined field-names of `Message` and `MessageTo`
- Choosed longer and more descriptive field-names for the domain-class
`Message`.
- Choosed short names for the TO-class `MessageTO`, which is serialized as
JSON.
Kai Moritz [Wed, 28 Dec 2022 16:20:53 +0000 (17:20 +0100)]
feat: `Chatroom.getMessages()` is fully paginated (takes first and last)
Kai Moritz [Wed, 28 Dec 2022 16:14:28 +0000 (17:14 +0100)]
refactor: Refined packaging (renamed packages and classes)
Kai Moritz [Wed, 28 Dec 2022 15:58:34 +0000 (16:58 +0100)]
refactor: Refined packaging (moved classes to new folders and files)
Kai Moritz [Wed, 28 Dec 2022 15:55:34 +0000 (16:55 +0100)]
refactor: Renamed artifact to chat-backend
Kai Moritz [Mon, 26 Dec 2022 17:07:57 +0000 (18:07 +0100)]
refactor: Reworked implementation of the problem-details [RFC-7807]
Kai Moritz [Mon, 26 Dec 2022 13:50:51 +0000 (14:50 +0100)]
feat: Added problem-details [RFC-7807] for a message mutation error
Kai Moritz [Mon, 26 Dec 2022 13:03:52 +0000 (14:03 +0100)]
feat: An `IllegalArgumentException` is thrown, if different messages are added for the same `MessageKey`
Kai Moritz [Mon, 26 Dec 2022 12:48:05 +0000 (13:48 +0100)]
feat: Added logging for the `listen`-endpoint
Kai Moritz [Mon, 26 Dec 2022 12:46:53 +0000 (13:46 +0100)]
fix: fixed the return-type of the `listen`-endpoint
Kai Moritz [Sun, 25 Dec 2022 22:02:47 +0000 (23:02 +0100)]
feat: Implemented an endpoint to get the details of a chatroom
Kai Moritz [Wed, 21 Dec 2022 17:57:23 +0000 (18:57 +0100)]
feat: implemented a listen-method for the chat-service based on a Flux
- Switched the return-type of `Chatroom.addMessage()` to `Mono<Message>`.
- Added an inner method, that "persists" the message and also returns
`Mono<Message>`.
- `addMessage()` calls `persistMessage()`, peeks into the subscription and
emits the `Message` to an internal `Sink.multy()` of the `Chatroom`.
- `Chatroom.listen()` creates a `Flux` from the internal Sink, so that
multiple subscribers can listen on the sink and all retrieve the current
messages in parallel.
Kai Moritz [Tue, 20 Dec 2022 21:25:42 +0000 (22:25 +0100)]
feat: implemented a simplified chatroom-service
Kai Moritz [Tue, 20 Dec 2022 17:27:11 +0000 (18:27 +0100)]
chore: Switched configuration from *.properties to YAML
Kai Moritz [Tue, 20 Dec 2022 17:26:15 +0000 (18:26 +0100)]
refactor: Simplified the name of the application-class
Kai Moritz [Sun, 15 Jan 2023 18:31:18 +0000 (19:31 +0100)]
chore: Fixed indentation of the `pom.xml`
Kai Moritz [Tue, 20 Dec 2022 17:18:45 +0000 (18:18 +0100)]
chore: Removed the Maven-Wrapper
Kai Moritz [Tue, 20 Dec 2022 17:17:49 +0000 (18:17 +0100)]
feat: Generated empty Spring Boot 3.0.0 App