Ray Milkey | 8526700 | 2016-11-16 11:06:35 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 16 | package org.onosproject.store.primitives.impl; |
| 17 | |
| 18 | import java.util.ArrayList; |
| 19 | import java.util.Collection; |
| 20 | import java.util.concurrent.CompletableFuture; |
| 21 | import java.util.concurrent.Executor; |
| 22 | import java.util.function.Consumer; |
| 23 | import java.util.stream.Collectors; |
| 24 | |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 25 | import org.onosproject.store.service.Serializer; |
| 26 | import org.onosproject.store.service.Task; |
Madan Jampani | d4684b4 | 2016-09-02 22:26:31 -0700 | [diff] [blame] | 27 | import org.onosproject.store.service.WorkQueue; |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 28 | import org.onosproject.store.service.WorkQueueStats; |
| 29 | |
| 30 | import com.google.common.collect.Collections2; |
| 31 | |
| 32 | /** |
| 33 | * Default implementation of {@link WorkQueue}. |
| 34 | * |
| 35 | * @param <E> task payload type. |
| 36 | */ |
| 37 | public class DefaultDistributedWorkQueue<E> implements WorkQueue<E> { |
| 38 | |
| 39 | private final WorkQueue<byte[]> backingQueue; |
| 40 | private final Serializer serializer; |
| 41 | |
| 42 | public DefaultDistributedWorkQueue(WorkQueue<byte[]> backingQueue, Serializer serializer) { |
| 43 | this.backingQueue = backingQueue; |
| 44 | this.serializer = serializer; |
| 45 | } |
| 46 | |
| 47 | @Override |
Madan Jampani | 819d61d | 2016-07-25 20:29:43 -0700 | [diff] [blame] | 48 | public String name() { |
| 49 | return backingQueue.name(); |
| 50 | } |
| 51 | |
| 52 | @Override |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 53 | public CompletableFuture<Void> addMultiple(Collection<E> items) { |
| 54 | return backingQueue.addMultiple(items.stream() |
| 55 | .map(serializer::encode) |
| 56 | .collect(Collectors.toCollection(ArrayList::new))); |
| 57 | } |
| 58 | |
Sho SHIMIZU | 431cafd | 2016-08-12 15:00:24 -0700 | [diff] [blame] | 59 | private Collection<Task<E>> decodeCollection(Collection<Task<byte[]>> tasks) { |
Yuta HIGUCHI | aa2f2f6 | 2016-07-25 14:26:11 -0700 | [diff] [blame] | 60 | return Collections2.transform(tasks, task -> task.map(serializer::decode)); |
| 61 | } |
| 62 | |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 63 | @Override |
| 64 | public CompletableFuture<Collection<Task<E>>> take(int maxTasks) { |
| 65 | return backingQueue.take(maxTasks) |
Yuta HIGUCHI | aa2f2f6 | 2016-07-25 14:26:11 -0700 | [diff] [blame] | 66 | .thenApply(this::decodeCollection); |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public CompletableFuture<Void> complete(Collection<String> ids) { |
| 71 | return backingQueue.complete(ids); |
| 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public CompletableFuture<WorkQueueStats> stats() { |
| 76 | return backingQueue.stats(); |
| 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public CompletableFuture<Void> registerTaskProcessor(Consumer<E> callback, |
| 81 | int parallelism, |
| 82 | Executor executor) { |
| 83 | Consumer<byte[]> backingQueueCallback = payload -> callback.accept(serializer.decode(payload)); |
| 84 | return backingQueue.registerTaskProcessor(backingQueueCallback, parallelism, executor); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public CompletableFuture<Void> stopProcessing() { |
| 89 | return backingQueue.stopProcessing(); |
| 90 | } |
Madan Jampani | d4684b4 | 2016-09-02 22:26:31 -0700 | [diff] [blame] | 91 | |
| 92 | @Override |
| 93 | public CompletableFuture<Void> destroy() { |
| 94 | return backingQueue.destroy(); |
| 95 | } |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 96 | } |