hadoop AuditSpanSource 源码
haddop AuditSpanSource 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/store/audit/AuditSpanSource.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.store.audit;
import javax.annotation.Nullable;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* A source of audit spans.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface AuditSpanSource<T extends AuditSpan> {
/**
* Create a span for an operation.
*
* All operation names <i>SHOULD</i> come from
* {@code StoreStatisticNames} or
* {@code StreamStatisticNames}.
* @param operation operation name.
* @param path1 first path of operation
* @param path2 second path of operation
* @return a span for the audit
* @throws IOException failure
*/
T createSpan(String operation,
@Nullable String path1,
@Nullable String path2)
throws IOException;
}
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