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/*
 * Copyright (c) 2011 Yan Pujante
 *
 * 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 org.linkedin.glu.groovy.utils

import org.linkedin.groovy.util.lang.GroovyLangUtils

/**
 * @author [email protected] */
public class GluGroovyLangUtils extends GroovyLangUtils
{
  static boolean getOptionalBoolean(def value, boolean defaultValue)
  {
    if(value == null)
      return defaultValue

    if(value instanceof Boolean)
      return value.booleanValue()

    value = value.toString().toLowerCase()

    switch(value)
    {
      case 'true':
      case 'yes':
      case 'on':
        return true

      case 'false':
      case 'no':
      case 'off':
        return false
    }

    throw new IllegalArgumentException("not a boolean : ${value}");
  }
}