hadoop ValidationFailure 源码
haddop ValidationFailure 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/ValidationFailure.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.s3a.commit;
import java.io.IOException;
/**
* Exception raised on validation failures; kept as an IOException
* for consistency with other failures.
*/
public class ValidationFailure extends IOException {
/**
* Create an instance with string formatting applied to the message
* and arguments.
* @param message error message
* @param args optional list of arguments
*/
public ValidationFailure(String message, Object... args) {
super(String.format(message, args));
}
/**
* Verify that a condition holds.
* @param expression expression which must be true
* @param message message to raise on a failure
* @param args arguments for the message formatting
* @throws ValidationFailure on a failure
*/
public static void verify(boolean expression,
String message,
Object... args) throws ValidationFailure {
if (!expression) {
throw new ValidationFailure(message, args);
}
}
}
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