001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.lib.wsrs;
020
021import java.text.MessageFormat;
022
023public abstract class BooleanParam extends Param<Boolean> {
024
025  public BooleanParam(String name, String str) {
026    value = parseParam(name, str);
027  }
028
029  protected Boolean parse(String str) throws Exception {
030    if (str.equalsIgnoreCase("true")) {
031      return true;
032    }
033    if (str.equalsIgnoreCase("false")) {
034      return false;
035    }
036    throw new IllegalArgumentException(MessageFormat.format("Invalid value [{0}], must be a boolean", str));
037  }
038
039  @Override
040  protected String getDomain() {
041    return "a boolean";
042  }
043}