hadoop BooleanParam 源码
haddop BooleanParam 代码
文件路径：/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 org.apache.hadoop.classification.InterfaceAudience;
import java.text.MessageFormat;
@InterfaceAudience.Private
public abstract class BooleanParam extends Param<Boolean> {
public BooleanParam(String name, Boolean defaultValue) {
super(name, defaultValue);
}
@Override
protected Boolean parse(String str) throws Exception {
if (str.equalsIgnoreCase("true")) {
return true;
} else 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";
}
}
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