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From tillrohrmann <...@git.apache.org>
Subject [GitHub] flink pull request #4893: [FLINK-7856][flip6] Port JobVertexBackPressureHand...
Date Tue, 07 Nov 2017 09:04:21 GMT
Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4893#discussion_r149305236
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/rest/messages/JobVertexBackPressureInfo.java
---
    @@ -0,0 +1,133 @@
    +/*
    + * 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.JsonProperty;
    +
    +import java.util.List;
    +import java.util.Objects;
    +
    +/**
    + * Response type of the {@link JobVertexBackPressureHandler}.
    + */
    +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 String status;
    +
    +	@JsonProperty(FIELD_NAME_BACKPRESSURE_LEVEL)
    +	private final String backpressureLevel;
    +
    +	@JsonProperty(FIELD_NAME_END_TIMESTAMP)
    +	private final Long endTimestamp;
    +
    +	@JsonProperty(FIELD_NAME_SUBTASKS)
    +	private final List<SubtaskBackPressureInfo> subtasks;
    +
    +	@JsonCreator
    +	public JobVertexBackPressureInfo(
    +		@JsonProperty(FIELD_NAME_STATUS) String status,
    +		@JsonProperty(FIELD_NAME_BACKPRESSURE_LEVEL) String 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;
    +	}
    +
    +	@Override
    +	public boolean equals(Object o) {
    +		if (this == o) {
    +			return true;
    +		}
    +		if (o == null || getClass() != o.getClass()) {
    +			return false;
    +		}
    +		JobVertexBackPressureInfo that = (JobVertexBackPressureInfo) o;
    +		return Objects.equals(status, that.status) &&
    +			Objects.equals(backpressureLevel, that.backpressureLevel) &&
    +			Objects.equals(endTimestamp, that.endTimestamp) &&
    +			Objects.equals(subtasks, that.subtasks);
    +	}
    +
    +	@Override
    +	public int hashCode() {
    +		return Objects.hash(status, backpressureLevel, endTimestamp, subtasks);
    +	}
    +
    +	//---------------------------------------------------------------------------------
    +	// Static helper classes
    +	//---------------------------------------------------------------------------------
    +
    +	/**
    +	 * Nested class to encapsulate the sub tasks back pressure.
    +	 */
    +	public static final class SubtaskBackPressureInfo {
    +
    +		public static final String FIELD_NAME_STATUS = "subtask";
    +		public static final String FIELD_NAME_BACKPRESSURE_LEVEL = "backpressure-level";
    +		public static final String FIELD_NAME_RATIO = "ratio";
    +
    +		@JsonProperty(FIELD_NAME_STATUS)
    +		private final int subtask;
    --- End diff --
    
    is that the status or the subtask name? Adapt the field annotation accordingly.


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