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MongoDB distributed lock [![tests](https://github.com/daggerok/distributed-lock-mongodb-spring-boot-starter/actions/workflows/tests.yml/badge.svg)](https://github.com/daggerok/distributed-lock-mongodb-spring-boot-starter/actions/workflows/tests.yml) [![integration tests](https://github.com/daggerok/distributed-lock-mongodb-spring-boot-starter/actions/workflows/integration-tests.yml/badge.svg)](https://github.com/daggerok/distributed-lock-mongodb-spring-boot-starter/actions/workflows/integration-tests.yml)\nA `distributed-lock-mongodb-spring-boot-starter` repository project contains custom written `Distributed Lock` starter\nbased on `Spring Boot` and `MongoTemplate` with `Testcontainers` integration testing and fabric8 `docker-maven-plugin`\nmaven module to help run example showcase application uses mongo docker container\n\n[![Maven Central](https://img.shields.io/maven-central/v/io.github.daggerok/distributed-lock-mongodb-spring-boot-starter.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:%22io.github.daggerok%22%20AND%20a:%22distributed-lock-mongodb-spring-boot-starter%22)\n\n## Versions\n\n| Distributed Lock | Spring Boot    | GitHub branch     |\n|------------------|----------------|-------------------|\n| 3.3.2            | 3.3.2          | master            |\n| 3.2.8            | 3.2.8          | spring-boot-3.2.x |\n| 3.1.12           | 3.1.12         | spring-boot-3.1.x |\n| 3.0.13           | 3.0.13         | spring-boot-3.0.x |\n| 2.7.18           | 2.7.18         | spring-boot-2.7.x |\n| 2.6.14-4         | 2.6.14         | spring-boot-2.6.x |\n| 2.5.14-4         | 2.5.14         | spring-boot-2.5.x |\n| 2.4.13-4         | 2.4.13         | spring-boot-2.4.x |\n| 2.3.12-4         | 2.3.12.RELEASE | spring-boot-2.3.x |\n| 2.2.13-4         | 2.2.13.RELEASE | spring-boot-2.2.x |\n| 2.1.18-4         | 2.1.18.RELEASE | spring-boot-2.1.x |\n\n## Installation\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003eio.github.daggerok\u003c/groupId\u003e\n    \u003cartifactId\u003edistributed-lock-mongodb-spring-boot-starter\u003c/artifactId\u003e\n    \u003cversion\u003eRELEASE\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nOr:\n\n```xml\n\n\u003cdependency\u003e\n    \u003cgroupId\u003eio.github.daggerok\u003c/groupId\u003e\n    \u003cartifactId\u003edistributed-lock-mongodb-spring-boot-starter\u003c/artifactId\u003e\n    \u003cversion\u003eLATEST\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\n...if you need SNAPSHOT\n\n## Supported operations\n\n* Acquire lock (try lock)\n* Release lock (try to unlock)\n* Acquire lock and consume (only if lock was acquired)\n* Acquire lock and supply value (only if lock was acquired)\n\n## Usage\n\n### Inject distributed lock\n\nA `DistributedLockAutoConfiguration` will provide `DistributedLock` you can use as locking implementation.\n\nFeel free to simply inject it by defined single constructor in your spring Bean:\n\n```java\n@Service\npublic class MyService {\n\n    @Autowired\n    private DistributedLock distributedLock;\n\n    // skipped...\n}\n```\n\nYou can inject it using `@Auqtowired annotation` by field injection (not recommended):\n\n```java\n@Service\npublic class MyService {\n\n    private final DistributedLock distributedLock;\n\n    public MyService(DistributedLock distributedLock) {\n        this.distributedLock = distributedLock;\n    }\n\n    // skipped...\n}\n```\n\nOr query it from `ApplicationContext` directly:\n\n```java\n@SpringBootApplication\npublic class MyApplication {\n    public static void main(String[] args) {\n        var context = SpringApplication.run(ExampleApplication.class, args);\n        var distributedLock = context.getBean(DistributedLock.class);\n        // skipped...\n    }\n}\n```\n\n### acquire(Lock config)\n\nAcquire lock (try lock)\n\n```java\nOptional\u003cLock\u003e maybeLock = distributedLock.acquire(Lock.of(identifier));\nif (maybeLock.isPresent()) log.debug(\"Lock was acquired.\");\nelse log.warn(\"Lock can't be acquired...\");\n```\n\n### release(String lockId)\n\nRelease lock (try to unlock)\n\n```java\nOptional\u003cLock\u003e maybeUnlock = distributedLock.release(\"642b52e873d0ec7cd4463f05\")\nif (maybeUnlock.isPresent()) log.debug(\"Lock was released.\");\nelse log.warn(\"Can't release lock...\");\n```\n\n### acquireAndRun\n\nAcquire lock and consume (only if lock was acquired)\n\n```java\nOptional\u003cBoolean\u003e maybeSync = distributedLock.acquireAndGet(Lock.of(\"sync\"), () -\u003e leaderElection.sync());\nif (maybeSync.isPresent()) log.debug(\"Data synchronization was completed\")\nelse log.warn(\"Data wasn't synced\");\n```\n\n### acquireAndGet\n\nAcquire lock and supply value (only if lock was acquired)\n\n```java\nOptional\u003cSyncResult\u003e syncResult = distributedLock.acquireAndGet(Lock.of(\"ETL\"), () -\u003e syncService.etl());\nmaybeResult.ifPresent(result -\u003e log.debug(\"Synchronization complete with: {}\", result));\n```\n\nThere are Lock object configurations available, but the easier way to acquire lock would be simply using identifier:\n\n```java\ndistributedLock\n        .acquireAndGet(\"user-123\", () -\u003e userService.update(user))\n        .ifPresent(unused -\u003e log.debug(\"User(id=123) has been updated\"));\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdaggerok%2Fdistributed-lock-mongodb-spring-boot-starter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdaggerok%2Fdistributed-lock-mongodb-spring-boot-starter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdaggerok%2Fdistributed-lock-mongodb-spring-boot-starter/lists"}