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Java wrapper for the popular chat & VOIP service: Discord https://discord.com

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/*
 * Copyright 2015 Austin Keener, Michael Ritter, Florian Spieß, and the JDA contributors
 *
 * 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 net.dv8tion.jda.api.utils.data;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.List;
import java.util.Map;

/**
 * Enum constants representing possible types for a {@link net.dv8tion.jda.api.utils.data.DataObject} value.
 */
public enum DataType
{
    INT, FLOAT, STRING, OBJECT, ARRAY, BOOLEAN, NULL, UNKNOWN;

    /**
     * Assumes the type of the provided value through instance checks.
     *
     * @param  value
     *         The value to test
     *
     * @return The DataType constant or {@link #UNKNOWN}
     */
    @Nonnull
    public static DataType getType(@Nullable Object value)
    {
        for (DataType type : values())
        {
            if (type.isType(value))
                return type;
        }
        return UNKNOWN;
    }

    /**
     * Tests whether the type for the provided value is
     * the one represented by this enum constant.
     *
     * @param  value
     *         The value to check
     *
     * @return True, if the value is of this type
     */
    public boolean isType(@Nullable Object value)
    {
        switch (this)
        {
            case INT:
                return value instanceof Integer ||value instanceof Long || value instanceof Short || value instanceof Byte;
            case FLOAT:
                return value instanceof Double || value instanceof Float;
            case STRING:
                return value instanceof String;
            case BOOLEAN:
                return value instanceof Boolean;
            case ARRAY:
                return value instanceof List;
            case OBJECT:
                return value instanceof Map;
            case NULL:
                return value == null;
            default:
                return false;
        }
    }
}