org.apache.hadoop.hdfs.web.resources.BooleanParam Maven / Gradle / Ivy
/**
* 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.hdfs.web.resources;
/** Boolean parameter. */
abstract class BooleanParam extends Param {
static final String TRUE = "true";
static final String FALSE = "false";
/** @return the parameter value as a string */
@Override
public String getValueString() {
return value.toString();
}
BooleanParam(final Domain domain, final Boolean value) {
super(domain, value);
}
/** The domain of the parameter. */
static final class Domain extends Param.Domain {
Domain(final String paramName) {
super(paramName);
}
@Override
public String getDomain() {
return "<" + NULL + " | boolean>";
}
@Override
Boolean parse(final String str) {
if (TRUE.equalsIgnoreCase(str)) {
return true;
} else if (FALSE.equalsIgnoreCase(str)) {
return false;
}
throw new IllegalArgumentException("Failed to parse \"" + str
+ "\" to Boolean.");
}
}
}