Github user GJL commented on a diff in the pull request: https://github.com/apache/flink/pull/5397#discussion_r165296204 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/rest/messages/JobVertexBackPressureInfo.java --- @@ -0,0 +1,184 @@ +/* + * 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.messages; + +import org.apache.flink.runtime.rest.handler.job.JobVertexBackPressureHandler; + +import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator; +import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonInclude; +import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty; +import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonValue; + +import java.util.List; +import java.util.Objects; + +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * Response type of the {@link JobVertexBackPressureHandler}. + */ +@JsonInclude(JsonInclude.Include.NON_NULL) +public class JobVertexBackPressureInfo implements ResponseBody { + + public static final String FIELD_NAME_STATUS = "status"; + public static final String FIELD_NAME_BACKPRESSURE_LEVEL = "backpressure-level"; + public static final String FIELD_NAME_END_TIMESTAMP = "end-timestamp"; + public static final String FIELD_NAME_SUBTASKS = "subtasks"; + + @JsonProperty(FIELD_NAME_STATUS) + private final VertexBackPressureStatus status; + + @JsonProperty(FIELD_NAME_BACKPRESSURE_LEVEL) + private final VertexBackPressureLevel backpressureLevel; + + @JsonProperty(FIELD_NAME_END_TIMESTAMP) + private final Long endTimestamp; + + @JsonProperty(FIELD_NAME_SUBTASKS) + protected final List<SubtaskBackPressureInfo> subtasks; + + @JsonCreator + public JobVertexBackPressureInfo( + @JsonProperty(FIELD_NAME_STATUS) VertexBackPressureStatus status, + @JsonProperty(FIELD_NAME_BACKPRESSURE_LEVEL) VertexBackPressureLevel backpressureLevel, + @JsonProperty(FIELD_NAME_END_TIMESTAMP) Long endTimestamp, + @JsonProperty(FIELD_NAME_SUBTASKS) List<SubtaskBackPressureInfo> subtasks) { + this.status = status; + this.backpressureLevel = backpressureLevel; + this.endTimestamp = endTimestamp; + this.subtasks = subtasks; + } + + public static JobVertexBackPressureInfo deprecated() { + return new JobVertexBackPressureInfo( + VertexBackPressureStatus.DEPRECATED, --- End diff -- Can do and I thought about it but that's how it is done currently. If status is `deprecated`, the ui will render *Sampling in progress*.
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