tech.ytsaurus.core.StringValueEnumResolver Maven / Gradle / Ivy

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package tech.ytsaurus.core;


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

public class StringValueEnumResolver & StringValueEnum> {
    private final Class enumClass;
    private final Map valuesByName = new HashMap<>();

    public StringValueEnumResolver(Class enumClass) {
        this.enumClass = enumClass;
        for (T value : enumClass.getEnumConstants()) {
            valuesByName.put(value.value(), value);
        }
    }

    public T fromName(String name) {
        if (name == null) {
            throw new IllegalArgumentException("value must not be null; for enum of type " + enumClass.getName());
        }
        if (valuesByName.containsKey(name)) {
            return valuesByName.get(name);
        }
        throw new IllegalArgumentException("no enum of type " + enumClass.getName() + " found with name " + name);
    }

    public static  & StringValueEnum> StringValueEnumResolver of(Class enumClass) {
        return new StringValueEnumResolver<>(enumClass);
    }
}