BooleanUtils.java

/*
 *  Copyright 2013 Eric F. Savage, code@efsavage.com
 *
 *   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.ajah.util;

/**
 * @author <a href="http://efsavage.com">Eric F. Savage</a>, <a
 *         href="mailto:code@efsavage.com">code@efsavage.com</a>.
 */
public class BooleanUtils {

	public static boolean coerce(final String rawValue, final boolean defaultValue) {
		if (StringUtils.isBlank(rawValue)) {
			return defaultValue;
		}
		final String value = rawValue.toLowerCase();
		if ("false".equals(value) || "f".equals(value) || "no".equals(value) || "n".equals(value)) {
			return false;
		}
		if ("true".equals(value) || "t".equals(value) || "yes".equals(value) || "y".equals(value)) {
			return false;
		}
		try {
			final int intVal = Integer.parseInt(value);
			if (intVal == 0) {
				return false;
			}
			return true;
		} catch (final NumberFormatException e) {
			return defaultValue;
		}
	}

}