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/*
 * 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.job;

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 java.util.Objects;

/** User accumulator info. */
public final class UserAccumulator {

    public static final String FIELD_NAME_ACC_NAME = "name";
    public static final String FIELD_NAME_ACC_TYPE = "type";
    public static final String FIELD_NAME_ACC_VALUE = "value";

    @JsonProperty(FIELD_NAME_ACC_NAME)
    private String name;

    @JsonProperty(FIELD_NAME_ACC_TYPE)
    private String type;

    @JsonProperty(FIELD_NAME_ACC_VALUE)
    private String value;

    @JsonCreator
    public UserAccumulator(
            @JsonProperty(FIELD_NAME_ACC_NAME) String name,
            @JsonProperty(FIELD_NAME_ACC_TYPE) String type,
            @JsonProperty(FIELD_NAME_ACC_VALUE) String value) {
        this.name = Preconditions.checkNotNull(name);
        this.type = Preconditions.checkNotNull(type);
        this.value = Preconditions.checkNotNull(value);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        UserAccumulator that = (UserAccumulator) o;
        return Objects.equals(name, that.name)
                && Objects.equals(type, that.type)
                && Objects.equals(value, that.value);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, type, value);
    }
}