| /* |
| * 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.sling.distribution.queue.impl; |
| |
| import javax.annotation.Nonnull; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.sling.distribution.common.DistributionException; |
| import org.apache.sling.distribution.queue.DistributionQueueEntry; |
| import org.apache.sling.distribution.packaging.DistributionPackage; |
| import org.apache.sling.distribution.packaging.impl.SharedDistributionPackage; |
| import org.apache.sling.distribution.packaging.impl.DistributionPackageUtils; |
| import org.apache.sling.distribution.queue.spi.DistributionQueue; |
| import org.apache.sling.distribution.queue.DistributionQueueItem; |
| import org.apache.sling.distribution.queue.DistributionQueueItemState; |
| import org.apache.sling.distribution.queue.DistributionQueueItemStatus; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The default strategy for delivering packages to queues. Each package can be dispatched to multiple queues. |
| */ |
| public class MultipleQueueDispatchingStrategy implements DistributionQueueDispatchingStrategy { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private final String[] queueNames; |
| |
| public MultipleQueueDispatchingStrategy(String[] queueNames) { |
| this.queueNames = Arrays.copyOf(queueNames, queueNames.length); |
| } |
| |
| public Iterable<DistributionQueueItemStatus> add(@Nonnull DistributionPackage distributionPackage, |
| @Nonnull DistributionQueueProvider queueProvider) throws DistributionException { |
| |
| if (!(distributionPackage instanceof SharedDistributionPackage) && queueNames.length > 1) { |
| throw new DistributionException("distribution package must be a shared package to be added in multiple queues"); |
| } |
| |
| DistributionQueueItem queueItem = getItem(distributionPackage); |
| List<DistributionQueueItemStatus> result = new ArrayList<DistributionQueueItemStatus>(); |
| |
| // first acquire the package for all queues |
| DistributionPackageUtils.acquire(distributionPackage, queueNames); |
| |
| // second add the package to all queues |
| for (String queueName : queueNames) { |
| DistributionQueue queue = queueProvider.getQueue(queueName); |
| DistributionQueueItemStatus status = new DistributionQueueItemStatus(DistributionQueueItemState.ERROR, queue.getName()); |
| |
| DistributionQueueEntry queueEntry = queue.add(queueItem); |
| |
| if (queueEntry != null) { |
| status = queueEntry.getStatus(); |
| } else { |
| DistributionPackageUtils.release(distributionPackage, queueName); |
| log.error("cannot add package {} to queue {}", distributionPackage.getId(), queueName); |
| } |
| |
| result.add(status); |
| } |
| |
| return result; |
| |
| } |
| |
| @Nonnull |
| public List<String> getQueueNames() { |
| return Arrays.asList(queueNames); |
| } |
| |
| private DistributionQueueItem getItem(DistributionPackage distributionPackage) { |
| return DistributionPackageUtils.toQueueItem(distributionPackage); |
| } |
| |
| } |