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| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
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| * "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 * |
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| * software distributed under the License is distributed on an * |
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| * specific language governing permissions and limitations * |
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| ****************************************************************/ |
| |
| package org.apache.james.rrt.cassandra.migration; |
| |
| import java.time.Clock; |
| import java.time.Instant; |
| import java.util.Optional; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import javax.inject.Inject; |
| |
| import org.apache.commons.lang3.tuple.Pair; |
| import org.apache.james.backends.cassandra.migration.Migration; |
| import org.apache.james.backends.cassandra.migration.MigrationException; |
| import org.apache.james.rrt.cassandra.CassandraMappingsSourcesDAO; |
| import org.apache.james.rrt.cassandra.CassandraRecipientRewriteTableDAO; |
| import org.apache.james.rrt.lib.Mapping; |
| import org.apache.james.rrt.lib.MappingSource; |
| import org.apache.james.task.Task; |
| import org.apache.james.task.TaskExecutionDetails; |
| import org.apache.james.task.TaskType; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import reactor.core.publisher.Mono; |
| |
| public class MappingsSourcesMigration implements Migration { |
| |
| public static class MappingsSourcesMigrationTask implements Task { |
| |
| private final MappingsSourcesMigration migration; |
| |
| public MappingsSourcesMigrationTask(MappingsSourcesMigration migration) { |
| this.migration = migration; |
| } |
| |
| @Override |
| public Result run() throws InterruptedException { |
| return migration.runTask(); |
| } |
| |
| @Override |
| public TaskType type() { |
| return TYPE; |
| } |
| |
| @Override |
| public Optional<TaskExecutionDetails.AdditionalInformation> details() { |
| return Optional.of(migration.createAdditionalInformation()); |
| } |
| } |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(MappingsSourcesMigration.class); |
| public static final TaskType TYPE = TaskType.of("mappingsSourcesMigration"); |
| |
| public static class AdditionalInformation implements TaskExecutionDetails.AdditionalInformation { |
| private final long successfulMappingsCount; |
| private final long errorMappingsCount; |
| private final Instant timestamp; |
| |
| AdditionalInformation(long successfulMappingsCount, long errorMappingsCount, Instant timestamp) { |
| this.successfulMappingsCount = successfulMappingsCount; |
| this.errorMappingsCount = errorMappingsCount; |
| this.timestamp = timestamp; |
| } |
| |
| public long getSuccessfulMappingsCount() { |
| return successfulMappingsCount; |
| } |
| |
| public long getErrorMappingsCount() { |
| return errorMappingsCount; |
| } |
| |
| @Override |
| public Instant timestamp() { |
| return timestamp; |
| } |
| } |
| |
| private final CassandraRecipientRewriteTableDAO cassandraRecipientRewriteTableDAO; |
| private final CassandraMappingsSourcesDAO cassandraMappingsSourcesDAO; |
| private final AtomicLong successfulMappingsCount; |
| private final AtomicLong errorMappingsCount; |
| |
| @Inject |
| public MappingsSourcesMigration(CassandraRecipientRewriteTableDAO cassandraRecipientRewriteTableDAO, |
| CassandraMappingsSourcesDAO cassandraMappingsSourcesDAO) { |
| this.cassandraRecipientRewriteTableDAO = cassandraRecipientRewriteTableDAO; |
| this.cassandraMappingsSourcesDAO = cassandraMappingsSourcesDAO; |
| this.successfulMappingsCount = new AtomicLong(0); |
| this.errorMappingsCount = new AtomicLong(0); |
| } |
| |
| @Override |
| public void apply() { |
| cassandraRecipientRewriteTableDAO.getAllMappings() |
| .flatMap(this::migrate) |
| .then(Mono.fromRunnable(() -> { |
| if (errorMappingsCount.get() > 0) { |
| throw new MigrationException("MappingsSourcesMigration failed"); |
| } |
| })) |
| .doOnError(t -> LOGGER.error("Error while migrating mappings sources", t)) |
| .block(); |
| } |
| |
| private Mono<Void> migrate(Pair<MappingSource, Mapping> mappingEntry) { |
| return cassandraMappingsSourcesDAO.addMapping(mappingEntry.getRight(), mappingEntry.getLeft()) |
| .then(Mono.fromCallable(successfulMappingsCount::incrementAndGet)) |
| .then() |
| .onErrorResume(t -> { |
| LOGGER.error("Error while performing migration of mapping source: {} with mapping: {}", |
| mappingEntry.getLeft().asString(), mappingEntry.getRight().asString(), t); |
| errorMappingsCount.incrementAndGet(); |
| return Mono.empty(); |
| }); |
| } |
| |
| @Override |
| public Task asTask() { |
| return new MappingsSourcesMigrationTask(this); |
| } |
| |
| AdditionalInformation createAdditionalInformation() { |
| return new AdditionalInformation( |
| successfulMappingsCount.get(), |
| errorMappingsCount.get(), |
| Clock.systemUTC().instant()); |
| } |
| } |