/* * 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.flink.runtime.rest.handler.async; import org.apache.flink.runtime.rest.messages.queue.AsynchronouslyCreatedResource; import org.apache.flink.runtime.rest.messages.queue.QueueStatus; import org.apache.flink.util.Preconditions; import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator; import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty; import javax.annotation.Nullable; /** * Result of an asynchronous operation. * * @param <V> type of the result value */ public class AsynchronousOperationResult<V> implements AsynchronouslyCreatedResource<V> { private static final String FIELD_NAME_STATUS = "status"; private static final String FIELD_NAME_OPERATION = "operation"; @JsonProperty(FIELD_NAME_STATUS) private final QueueStatus queueStatus; @JsonProperty(FIELD_NAME_OPERATION) @Nullable private final V value; @JsonCreator private AsynchronousOperationResult( @JsonProperty(FIELD_NAME_STATUS) QueueStatus queueStatus, @JsonProperty(FIELD_NAME_OPERATION) @Nullable V value) { this.queueStatus = Preconditions.checkNotNull(queueStatus); this.value = value; } @Override public QueueStatus queueStatus() { return queueStatus; } @Nullable @Override public V resource() { return value; } public static <V> AsynchronousOperationResult<V> inProgress() { return new AsynchronousOperationResult<>(QueueStatus.inProgress(), null); } public static <V> AsynchronousOperationResult<V> completed(V value) { return new AsynchronousOperationResult<>(QueueStatus.completed(), value); } }