Java tutorial
package org.apache.archiva.indexer.merger; /* * 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. */ import org.apache.archiva.admin.model.beans.RepositoryGroup; import org.apache.archiva.scheduler.MergedRemoteIndexesScheduler; import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.scheduling.TaskScheduler; import org.springframework.scheduling.support.CronTrigger; import org.springframework.stereotype.Service; import javax.inject.Inject; import javax.inject.Named; import java.io.File; import java.util.List; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ScheduledFuture; /** * @author Olivier Lamy * @since 2.0.0 */ @Service("mergedRemoteIndexesScheduler#default") public class DefaultMergedRemoteIndexesScheduler implements MergedRemoteIndexesScheduler { private Logger logger = LoggerFactory.getLogger(getClass()); @Inject @Named(value = "taskScheduler#mergeRemoteIndexes") private TaskScheduler taskScheduler; @Inject private IndexMerger indexMerger; private Map<String, ScheduledFuture> scheduledFutureMap = new ConcurrentHashMap<>(); @Override public void schedule(RepositoryGroup repositoryGroup, File directory) { if (StringUtils.isEmpty(repositoryGroup.getCronExpression())) { return; } CronTrigger cronTrigger = new CronTrigger(repositoryGroup.getCronExpression()); List<String> repositories = repositoryGroup.getRepositories(); IndexMergerRequest indexMergerRequest = new IndexMergerRequest(repositories, true, repositoryGroup.getId(), repositoryGroup.getMergedIndexPath(), repositoryGroup.getMergedIndexTtl()) .mergedIndexDirectory(directory); MergedRemoteIndexesTaskRequest taskRequest = new MergedRemoteIndexesTaskRequest(indexMergerRequest, indexMerger); logger.info("schedule merge remote index for group {} with cron {}", repositoryGroup.getId(), repositoryGroup.getCronExpression()); ScheduledFuture scheduledFuture = taskScheduler.schedule(new MergedRemoteIndexesTask(taskRequest), cronTrigger); scheduledFutureMap.put(repositoryGroup.getId(), scheduledFuture); } @Override public void unschedule(RepositoryGroup repositoryGroup) { ScheduledFuture scheduledFuture = scheduledFutureMap.remove(repositoryGroup.getId()); if (scheduledFuture != null) { scheduledFuture.cancel(true); } } }