hadoop-hdfs-project/hadoop-hdfs-httpfs/src/main/java/org/apache/hadoop/lib/wsrs/BooleanParam.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hadoop.lib.wsrs;

import java.text.MessageFormat;

public abstract class BooleanParam extends Param<Boolean> {

  public BooleanParam(String name, String str) {
    value = parseParam(name, str);
  }

  protected Boolean parse(String str) throws Exception {
    if (str.equalsIgnoreCase("true")) {
      return true;
    }
    if (str.equalsIgnoreCase("false")) {
      return false;
    }
    throw new IllegalArgumentException(MessageFormat.format("Invalid value [{0}], must be a boolean", str));
  }

  @Override
  protected String getDomain() {
    return "a boolean";
  }
}