BooleanAsNumberValueTransformer.java

/**
 * The MIT License
 * Copyright © 2010 JmxTrans team
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.googlecode.jmxtrans.model.results;

import javax.annotation.Nullable;

public class BooleanAsNumberValueTransformer implements ValueTransformer {

	private final Number valueForTrue;
	private final Number valueForFalse;

	public BooleanAsNumberValueTransformer(Number valueForTrue, Number valueForFalse) {
		this.valueForTrue = valueForTrue;
		this.valueForFalse = valueForFalse;
	}

	@Nullable
	@Override
	public Object apply(@Nullable Object value) {
		if (value == null) {
			return null;
		}

		if (value instanceof Boolean) {
			if ((Boolean) value) {
				return valueForTrue;
			} else {
				return valueForFalse;
			}
		}
		return value;
	}
}