com.pinterest.arcee.bean.AutoScalingTerminationPolicy.java Source code

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Here is the source code for com.pinterest.arcee.bean.AutoScalingTerminationPolicy.java

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/**
 * Copyright 2016 Pinterest, Inc.
 *
 * 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 com.pinterest.arcee.bean;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;
import org.apache.commons.lang.StringUtils;

import java.util.HashMap;
import java.util.Map;

public enum AutoScalingTerminationPolicy {
    Default, OldestInstance, NewestInstance, OldestLaunchConfiguration, ClosestToNextInstanceHour;

    private static Map<String, AutoScalingTerminationPolicy> namesMap = new HashMap<>(5);

    static {
        namesMap.put("Default", Default);
        namesMap.put("OldestInstance", OldestInstance);
        namesMap.put("NewestInstance", NewestInstance);
        namesMap.put("OldestLaunchConfiguration", OldestLaunchConfiguration);
        namesMap.put("ClosestToNextInstanceHour", ClosestToNextInstanceHour);
    }

    @JsonCreator
    public static AutoScalingTerminationPolicy forValue(String value) {
        return namesMap.get(StringUtils.lowerCase(value));
    }

    @JsonValue
    public String toValue() {
        for (Map.Entry<String, AutoScalingTerminationPolicy> entry : namesMap.entrySet()) {
            if (entry.getValue() == this)
                return entry.getKey();
        }

        return null; // or fail
    }
}