chibenwa commented on code in PR #2679: URL: https://github.com/apache/james-project/pull/2679#discussion_r1998698387
########## server/apps/migration/core-data-jpa-to-pg/src/main/java/org/apache/james/JpaToPgCoreDataMigration.java: ########## @@ -0,0 +1,455 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +package org.apache.james; + +import java.util.Set; +import java.util.UUID; + +import jakarta.inject.Inject; +import jakarta.persistence.EntityManagerFactory; + +import org.apache.james.backends.cassandra.migration.Migration; +import org.apache.james.backends.postgres.PostgresModule; +import org.apache.james.core.Username; +import org.apache.james.domainlist.api.DomainListException; +import org.apache.james.domainlist.jpa.JPADomainList; +import org.apache.james.domainlist.lib.DomainListConfiguration; +import org.apache.james.domainlist.postgres.PostgresDomainList; +import org.apache.james.droplists.jpa.JPADropList; +import org.apache.james.droplists.postgres.PostgresDropList; +import org.apache.james.filesystem.api.FileSystem; +import org.apache.james.mailrepository.api.MailRepositoryUrlStore; +import org.apache.james.mailrepository.jpa.JPAMailRepositoryUrlStore; +import org.apache.james.mailrepository.postgres.PostgresMailRepositoryUrlStore; +import org.apache.james.modules.data.JPAEntityManagerModule; +import org.apache.james.modules.data.PostgresCommonModule; +import org.apache.james.modules.data.PostgresDomainListModule; +import org.apache.james.modules.data.PostgresDropListsModule; +import org.apache.james.modules.data.PostgresQuotaGuiceModule; +import org.apache.james.modules.data.PostgresRecipientRewriteTableModule; +import org.apache.james.modules.data.PostgresUsersRepositoryModule; +import org.apache.james.modules.data.SievePostgresRepositoryModules; +import org.apache.james.modules.server.DNSServiceModule; +import org.apache.james.modules.server.DropWizardMetricsModule; +import org.apache.james.rrt.api.RecipientRewriteTableException; +import org.apache.james.rrt.jpa.JPARecipientRewriteTable; +import org.apache.james.rrt.postgres.PostgresRecipientRewriteTable; +import org.apache.james.server.core.configuration.Configuration; +import org.apache.james.server.core.configuration.ConfigurationProvider; +import org.apache.james.server.core.configuration.FileConfigurationProvider; +import org.apache.james.server.core.filesystem.FileSystemImpl; +import org.apache.james.sieve.jpa.JPASieveRepository; +import org.apache.james.sieve.jpa.model.JPASieveScript; +import org.apache.james.sieve.postgres.PostgresSieveRepository; +import org.apache.james.sieverepository.api.ScriptContent; +import org.apache.james.sieverepository.api.ScriptName; +import org.apache.james.user.api.AlreadyExistInUsersRepositoryException; +import org.apache.james.user.api.UsersRepositoryException; +import org.apache.james.user.jpa.JPAUsersDAO; +import org.apache.james.user.jpa.model.JPAUser; +import org.apache.james.user.lib.model.Algorithm; +import org.apache.james.user.lib.model.DefaultUser; +import org.apache.james.user.postgres.PostgresUsersDAO; +import org.apache.james.user.postgres.PostgresUsersRepositoryConfiguration; +import org.apache.james.util.LoggingLevel; +import org.apache.james.utils.InitializationOperation; +import org.apache.james.utils.InitializationOperations; +import org.apache.james.utils.InitilizationOperationBuilder; +import org.apache.james.utils.PropertiesProvider; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.github.fge.lambdas.Throwing; +import com.google.inject.AbstractModule; +import com.google.inject.Guice; +import com.google.inject.Injector; +import com.google.inject.Module; +import com.google.inject.Provides; +import com.google.inject.Scopes; +import com.google.inject.Singleton; +import com.google.inject.multibindings.Multibinder; +import com.google.inject.multibindings.ProvidesIntoSet; +import com.google.inject.util.Modules; + +public class JpaToPgCoreDataMigration { + private static final Logger LOGGER = LoggerFactory.getLogger(JpaToPgCoreDataMigration.class); + + private static final Module JPA_MODULES = Modules.combine( + new JPAEntityManagerModule(), + new UnboundJPAMigrationModule() + ); + private static final Module POSTGRESQL_MODULES = Modules.combine( + new PostgresCommonModule(), + new PostgresDomainListModule(), + new PostgresRecipientRewriteTableModule(), + new PostgresUsersRepositoryModule(), + new PostgresMailRepositoryUrlStoreModule(), + new PostgresDropListsModule(), + new PostgresQuotaGuiceModule(), + new SievePostgresRepositoryModules() + ); + + static final Module MIGRATION_MODULES = Modules.combine( + new DNSServiceModule(), + new DropWizardMetricsModule(), + + new CoreEntityValidatorsModule(), + PostgresUsersRepositoryModule.USER_CONFIGURATION_MODULE, + JPA_MODULES, + POSTGRESQL_MODULES + ); + + private final Injector injector; + + public static void main(String[] args) { + MigrationConfiguration configuration = MigrationConfiguration.builder() + .useWorkingDirectoryEnvProperty() + .build(); + LOGGER.info("Loading configuration {}", configuration.toString()); + + var module = Modules.combine( + new MigrationModule(configuration), + MIGRATION_MODULES + ); + + + JpaToPgCoreDataMigration migration = new JpaToPgCoreDataMigration(module); + migration.start(); + } + + static class DomainMigration { + private static final Logger LOGGER = LoggerFactory.getLogger(DomainMigration.class); + + private final JPADomainList jpaDomainList; + private final PostgresDomainList pgDomainList; + + @Inject + DomainMigration( + JPADomainList jpaDomainList, + PostgresDomainList pgDomainList + ) { + this.jpaDomainList = jpaDomainList; + this.pgDomainList = pgDomainList; + } + + void doMigration() { + LOGGER.info("Start domains migration"); + try { + jpaDomainList.getDomains().forEach(domain -> { + try { + pgDomainList.addDomain(domain); + } catch (DomainListException e) { + if (!e.getMessage().contains("already exists.")) { + LOGGER.warn("Failed to migrate domain {}", domain, e); + } + } + } + ); + + } catch (DomainListException e) { + throw new RuntimeException("Unable to migrate domains, aborting processing", e); + } + LOGGER.info("Domains migration completed"); + } + } + + static class UsersMigration { + private static final Logger LOGGER = LoggerFactory.getLogger(UsersMigration.class); + private final Algorithm algorithm; + private final JPAUsersDAO jpaUsersDAO; + private final PostgresUsersDAO postgresUsersDAO; + + + @Inject + UsersMigration( + JPAUsersDAO jpaUsersDAO, + PostgresUsersDAO postgresUsersDAO, + PostgresUsersRepositoryConfiguration postgresUsersRepositoryConfiguration + ) { + this.algorithm = postgresUsersRepositoryConfiguration.getPreferredAlgorithm(); + this.jpaUsersDAO = jpaUsersDAO; + this.postgresUsersDAO = postgresUsersDAO; + } + + void doMigration() { + LOGGER.info("Start users migration"); + try { + jpaUsersDAO.list().forEachRemaining(username -> { + try { + jpaUsersDAO.getUserByName(username).ifPresent(user -> { + var jpaUser = (JPAUser) user; + var pgUser = new DefaultUser( + username, + jpaUser.getPasswordHash(), + jpaUser.getAlgorithm(), + algorithm + ); + try { + postgresUsersDAO.addUser(username, UUID.randomUUID().toString()); Review Comment: Ok thanks for the explanation. -- This is an automated message from the Apache Git Service. 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