| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * Licensed 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.onosproject.store.service; |
| |
| import java.util.function.Function; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * {@link WorkQueue} task. |
| * |
| * @param <E> task payload type. |
| */ |
| public class Task<E> { |
| private final E payload; |
| private final String taskId; |
| |
| private Task() { |
| payload = null; |
| taskId = null; |
| } |
| |
| /** |
| * Constructs a new task instance. |
| * @param taskId task identifier |
| * @param payload task payload |
| */ |
| public Task(String taskId, E payload) { |
| this.taskId = taskId; |
| this.payload = payload; |
| } |
| |
| /** |
| * Returns the task identifier. |
| * @return task id |
| */ |
| public String taskId() { |
| return taskId; |
| } |
| |
| /** |
| * Returns the task payload. |
| * @return task payload |
| */ |
| public E payload() { |
| return payload; |
| } |
| |
| /** |
| * Maps task from one payload type to another. |
| * |
| * @param <F> future type |
| * @param mapper type mapper. |
| * @return mapped task. |
| */ |
| public <F> Task<F> map(Function<E, F> mapper) { |
| return new Task<>(taskId, mapper.apply(payload)); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("taskId", taskId) |
| .add("payload", payload) |
| .toString(); |
| } |
| } |