Examples with R2dbcOperations io.micronaut.data.r2dbc.operations.R2dbcOperations used on opensource projects

Example 1 with R2dbcOperations

use of io.micronaut.data.r2dbc.operations.R2dbcOperations in project micronaut-data by micronaut-projects.

the class R2dbcSchemaGenerator method createSchema.

/**
 * Creates the schema.
 *
 * @param beanLocator The bean locator
 */
@PostConstruct
protected void createSchema(BeanLocator beanLocator) {
    RuntimeEntityRegistry runtimeEntityRegistry = beanLocator.getBean(RuntimeEntityRegistry.class);
    for (DataR2dbcConfiguration configuration : configurations) {
        SchemaGenerate schemaGenerate = configuration.getSchemaGenerate();
        if (schemaGenerate != null && schemaGenerate != SchemaGenerate.NONE) {
            List<String> packages = configuration.getPackages();
            Collection<BeanIntrospection<Object>> introspections;
            if (CollectionUtils.isNotEmpty(packages)) {
                introspections = BeanIntrospector.SHARED.findIntrospections(MappedEntity.class, packages.toArray(new String[0]));
            } else {
                introspections = BeanIntrospector.SHARED.findIntrospections(MappedEntity.class);
            }
            PersistentEntity[] entities = introspections.stream().filter(i -> !i.getBeanType().getName().contains("$")).filter(i -> !java.lang.reflect.Modifier.isAbstract(i.getBeanType().getModifiers())).map(e -> runtimeEntityRegistry.getEntity(e.getBeanType())).toArray(PersistentEntity[]::new);
            if (ArrayUtils.isNotEmpty(entities)) {
                R2dbcOperations r2dbcOperations = configuration.getR2dbcOperations();
                SqlQueryBuilder builder = new SqlQueryBuilder(configuration.getDialect());
                Mono.from(r2dbcOperations.withConnection(connection -> {
                    List<String> createStatements = Arrays.stream(entities).flatMap(entity -> Arrays.stream(builder.buildCreateTableStatements(entity))).collect(Collectors.toList());
                    Flux<Void> createTablesFlow = Flux.fromIterable(createStatements).concatMap(sql -> {
                        if (DataSettings.QUERY_LOG.isDebugEnabled()) {
                            DataSettings.QUERY_LOG.debug("Creating Table: \n{}", sql);
                        }
                        return execute(connection, sql).onErrorResume((throwable -> {
                            if (LOG.isWarnEnabled()) {
                                LOG.warn("Unable to create table :{}", throwable.getMessage());
                            }
                            return Mono.empty();
                        }));
                    });
                    switch(schemaGenerate) {
                        case CREATE_DROP:
                            List<String> dropStatements = Arrays.stream(entities).flatMap(entity -> Arrays.stream(builder.buildDropTableStatements(entity))).collect(Collectors.toList());
                            return Flux.fromIterable(dropStatements).concatMap(sql -> {
                                if (DataSettings.QUERY_LOG.isDebugEnabled()) {
                                    DataSettings.QUERY_LOG.debug("Dropping Table: \n{}", sql);
                                }
                                return execute(connection, sql).onErrorResume((throwable -> Mono.empty()));
                            }).thenMany(createTablesFlow).then();
                        case CREATE:
                        default:
                            return createTablesFlow.then();
                    }
                })).block();
            }
        }
    }
}