Mongock迁移无法运行mongockSpringLegacyMigration

Question

我试图运行mongock来使用版本控制来处理我的DB迁移，但是从mongock基础结构中得到一个异常，也请注意我不是只使用spring-boot系统，我没有选择使用spring引导.

Pom和代码片段：

            <dependency>
                <groupId>com.github.cloudyrock.mongock</groupId>
                <artifactId>mongock-standalone</artifactId>
                <version>4.1.19</version>
            </dependency>
            <dependency>
                <groupId>com.github.cloudyrock.mongock</groupId>
                <artifactId>mongodb-springdata-v2-driver</artifactId>
                <version>4.1.19</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.data</groupId>
                <artifactId>spring-data-mongodb</artifactId>
                <version>2.1.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.mongodb</groupId>
                <artifactId>mongo-java-driver</artifactId>
                <version>3.8.2</version>
            </dependency>

代码：

@Configuration
@Import({MongoSelectorContext.class})
public class MongockBeans {

    private final MongoSelectorContext mongoSelectorContext;

    public MongockBeans(MongoSelectorContext mongoSelectorContext) {
        this.mongoSelectorContext = mongoSelectorContext;
    }

    @Bean
    public void updateMongoTemplateSchema() {
        MongoTemplate mongoTemplate = mongoSelectorContext.mongoTemplateProvider().getMongoTemplateByDatabaseAlias("test");
        MongockStandalone.builder()
                .setDriver(SpringDataMongo2Driver.withDefaultLock(mongoTemplate))
                .addChangeLogClass(TestChangeLog.class)
                .buildRunner().execute();
    }
}

Mongo模板是按其应有的提供的，但是我得到了以下错误，错误是从mongock抛出的，而不是从变更集中抛出的，它甚至没有执行我的更改集。任何帮助都是徒弟

Exception in thread "main" java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongockBeans': Invocation of init method failed; nested exception is io.changock.migration.api.exception.ChangockException: Error in method[MongockV3LegacyMigrationChangeRunAlwaysLog.mongockSpringLegacyMigration] : Wrong parameter[MongockLegacyMigration] with name: legacy-migration
    at com.citi.qi.core.platform.CorePlatformLauncher.start(CorePlatformLauncher.java:39)
    at com.citi.quickinsight.evaluation.engine.EngineMain.main(EngineMain.java:35)
...
Caused by: io.changock.migration.api.exception.ChangockException: Error in method[MongockV3LegacyMigrationChangeRunAlwaysLog.mongockSpringLegacyMigration] : Wrong parameter[MongockLegacyMigration] with name: legacy-migration
    at io.changock.runner.core.MigrationExecutor.processExceptionOnChangeSetExecution(MigrationExecutor.java:195)
    at io.changock.runner.core.MigrationExecutor.processSingleChangeSet(MigrationExecutor.java:102)
    at io.changock.runner.core.MigrationExecutor.lambda$processSingleChangeLog$2(MigrationExecutor.java:94)
    at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:80)
    at io.changock.runner.core.MigrationExecutor.processSingleChangeLog(MigrationExecutor.java:94)
    at io.changock.runner.core.MigrationExecutor.lambda$processAllChangeLogs$1(MigrationExecutor.java:88)
    at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:80)
    at io.changock.runner.core.MigrationExecutor.processAllChangeLogs(MigrationExecutor.java:88)
    at io.changock.runner.core.MigrationExecutor.lambda$executeMigration$0(MigrationExecutor.java:69)
    at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:80)
    at io.changock.runner.core.MigrationExecutor.executeMigration(MigrationExecutor.java:69)
    at io.changock.runner.core.ChangockBase.execute(ChangockBase.java:49)
    at com.citi.quickinsight.MongockBeans.updateMongoTemplateSchema(MongockBeans.java:29)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157)
    ... 14 more
Caused by: io.changock.driver.api.common.DependencyInjectionException: Wrong parameter[MongockLegacyMigration] with name: legacy-migration
    at io.changock.runner.core.MigrationExecutor.lambda$getParameter$4(MigrationExecutor.java:182)
    at java.util.Optional.orElseThrow(Optional.java:290)
    at io.changock.runner.core.MigrationExecutor.getParameter(MigrationExecutor.java:182)
    at io.changock.runner.core.MigrationExecutor.executeChangeSetMethod(MigrationExecutor.java:171)
    at io.changock.runner.core.MigrationExecutor.executeAndLogChangeSet(MigrationExecutor.java:127)
    at io.changock.runner.core.MigrationExecutor.processSingleChangeSet(MigrationExecutor.java:100)
    ... 32 more

Answer 1

这是需要深入研究的，但是我想您是在开发环境中，您可以尝试这个解决方法，这只是暂时的，您可以继续工作。

private MongockLegacyMigration getLegacyMigration() {
    MongockLegacyMigration mongockLegacyMigration = new MongockLegacyMigration();
    mongockLegacyMigration.setCollectionName("no-existing-collection");
    return mongockLegacyMigration;
}

@PostConstruct
public MongockStandalone.Runner updateMongoTemplateSchema(MongoTemplate mongoTemplate) {
    return MongockStandalone.builder()
            .setDriver(SpringDataMongo2Driver.withDefaultLock(mongoTemplate))
            .addChangeLogClass(ClientInitializerChangeLog.class)
            .setLegacyMigration(getLegacyMigration())
            .buildRunner();
}

请注意，您正在提供一个不存在的legacyMigration。这不是正确的/最终的解决方案，但不会有什么影响，因为您正在开发(我的假设)，这允许您继续工作。

Answer 2

虽然前面的解决方法是可行的，但这是由于Mongock bug #268，它已经在4.2.3.BETA版本中得到了修复。

实际问题是，当构建器中没有设置任何包时，反射库将得到一个空的包列表，而在不返回任何包时，它将返回类路径中的所有内容。 因为99%没有注释，所以它们被忽略了，但是它找到遗留迁移并运行它。 解决方案:如果包列表为空，只需避免调用反射库即可。