hadoop CommandUtils 源码
haddop CommandUtils 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CommandUtils.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.fs.shell;
final class CommandUtils {
static String formatDescription(String usage, String... desciptions) {
StringBuilder b = new StringBuilder(usage + ": " + desciptions[0]);
for(int i = 1; i < desciptions.length; i++) {
b.append("\n\t\t" + desciptions[i]);
}
return b.toString();
}
}
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