| /**************************************************************** |
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| * 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.webadmin.service; |
| |
| import java.time.Clock; |
| import java.time.Instant; |
| import java.util.Optional; |
| |
| import jakarta.inject.Inject; |
| |
| import org.apache.james.mailrepository.api.MailRepository; |
| import org.apache.james.mailrepository.api.MailRepositoryPath; |
| import org.apache.james.mailrepository.api.MailRepositoryStore; |
| import org.apache.james.task.Task; |
| import org.apache.james.task.TaskExecutionDetails; |
| import org.apache.james.task.TaskType; |
| import org.reactivestreams.Publisher; |
| |
| import com.github.fge.lambdas.Throwing; |
| |
| import reactor.core.publisher.Flux; |
| import reactor.core.publisher.Mono; |
| |
| public class ClearMailRepositoryTask implements Task { |
| |
| public static final TaskType TYPE = TaskType.of("clear-mail-repository"); |
| |
| public static class Factory { |
| private final MailRepositoryStore mailRepositoryStore; |
| |
| @Inject |
| public Factory(MailRepositoryStore mailRepositoryStore) { |
| this.mailRepositoryStore = mailRepositoryStore; |
| } |
| |
| public ClearMailRepositoryTask create(MailRepositoryPath mailRepositoryPath) { |
| return new ClearMailRepositoryTask(mailRepositoryStore, mailRepositoryPath); |
| } |
| } |
| |
| public static class AdditionalInformation implements TaskExecutionDetails.AdditionalInformation { |
| private final MailRepositoryPath repositoryPath; |
| private final long initialCount; |
| private final long remainingCount; |
| private final Instant timestamp; |
| |
| public AdditionalInformation(MailRepositoryPath repositoryPath, long initialCount, long remainingCount, Instant timestamp) { |
| this.repositoryPath = repositoryPath; |
| this.initialCount = initialCount; |
| this.remainingCount = remainingCount; |
| this.timestamp = timestamp; |
| } |
| |
| public String getRepositoryPath() { |
| return repositoryPath.asString(); |
| } |
| |
| public long getRemainingCount() { |
| return remainingCount; |
| } |
| |
| public long getInitialCount() { |
| return initialCount; |
| } |
| |
| @Override |
| public Instant timestamp() { |
| return timestamp; |
| } |
| } |
| |
| public static class UrlEncodingFailureSerializationException extends RuntimeException { |
| |
| public UrlEncodingFailureSerializationException(MailRepositoryPath mailRepositoryPath) { |
| super("Unable to serialize: '" + mailRepositoryPath.asString() + "' can not be url encoded"); |
| } |
| } |
| |
| public static class InvalidMailRepositoryPathDeserializationException extends RuntimeException { |
| |
| public InvalidMailRepositoryPathDeserializationException(String mailRepositoryPath) { |
| super("Unable to deserialize: '" + mailRepositoryPath + "' can not be url decoded"); |
| } |
| } |
| |
| private final MailRepositoryStore mailRepositoryStore; |
| private final MailRepositoryPath mailRepositoryPath; |
| private long initialCount = 0; |
| |
| public ClearMailRepositoryTask(MailRepositoryStore mailRepositoryStore, MailRepositoryPath path) { |
| this.mailRepositoryStore = mailRepositoryStore; |
| this.mailRepositoryPath = path; |
| } |
| |
| @Override |
| public Result run() { |
| initialCount = getRemainingSize().block(); |
| try { |
| removeAllInAllRepositories(); |
| return Result.COMPLETED; |
| } catch (MailRepositoryStore.MailRepositoryStoreException e) { |
| LOGGER.error("Encountered error while clearing repository", e); |
| return Result.PARTIAL; |
| } |
| } |
| |
| private void removeAllInAllRepositories() throws MailRepositoryStore.MailRepositoryStoreException { |
| mailRepositoryStore.getByPath(mailRepositoryPath) |
| .forEach(Throwing.consumer(MailRepository::removeAll).sneakyThrow()); |
| } |
| |
| @Override |
| public TaskType type() { |
| return TYPE; |
| } |
| |
| MailRepositoryPath getMailRepositoryPath() { |
| return mailRepositoryPath; |
| } |
| |
| @Override |
| public Publisher<Optional<TaskExecutionDetails.AdditionalInformation>> detailsReactive() { |
| return getRemainingSize() |
| .map(remainingSize -> new AdditionalInformation(mailRepositoryPath, initialCount, remainingSize, Clock.systemUTC().instant())) |
| .map(Optional::of); |
| } |
| |
| public Mono<Long> getRemainingSize() { |
| try { |
| return Flux.fromStream(mailRepositoryStore.getByPath(mailRepositoryPath)) |
| .flatMap(MailRepository::sizeReactive) |
| .reduce(0L, Long::sum); |
| } catch (MailRepositoryStore.MailRepositoryStoreException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |