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Interfaces to be implemented in order to smooth over hadoop version differences

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/*
 * 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.hbase.metrics;

import org.apache.yetus.audience.InterfaceAudience;

/**
 * Common interface for metrics source implementations which need to track individual exception
 * types thrown or received.
 */
@InterfaceAudience.Private
public interface ExceptionTrackingSource extends BaseSource {
  String EXCEPTIONS_NAME = "exceptions";
  String EXCEPTIONS_DESC = "Exceptions caused by requests";
  String EXCEPTIONS_TYPE_DESC =
    "Number of requests that resulted in the specified type of Exception";
  String EXCEPTIONS_OOO_NAME = "exceptions.OutOfOrderScannerNextException";
  String EXCEPTIONS_BUSY_NAME = "exceptions.RegionTooBusyException";
  String EXCEPTIONS_UNKNOWN_NAME = "exceptions.UnknownScannerException";
  String EXCEPTIONS_SCANNER_RESET_NAME = "exceptions.ScannerResetException";
  String EXCEPTIONS_SANITY_NAME = "exceptions.FailedSanityCheckException";
  String EXCEPTIONS_MOVED_NAME = "exceptions.RegionMovedException";
  String EXCEPTIONS_NSRE_NAME = "exceptions.NotServingRegionException";
  String EXCEPTIONS_MULTI_TOO_LARGE_NAME = "exceptions.multiResponseTooLarge";
  String EXCEPTIONS_MULTI_TOO_LARGE_DESC = "A response to a multi request was too large and the "
    + "rest of the requests will have to be retried.";
  String EXCEPTIONS_CALL_QUEUE_TOO_BIG = "exceptions.callQueueTooBig";
  String EXCEPTIONS_CALL_QUEUE_TOO_BIG_DESC = "Call queue is full";
  String EXCEPTIONS_QUOTA_EXCEEDED = "exceptions.quotaExceeded";
  String EXCEPTIONS_RPC_THROTTLING = "exceptions.rpcThrottling";
  String EXCEPTIONS_CALL_DROPPED = "exceptions.callDropped";
  String EXCEPTIONS_CALL_TIMED_OUT = "exceptions.callTimedOut";
  String EXCEPTIONS_REQUEST_TOO_BIG = "exceptions.requestTooBig";
  String OTHER_EXCEPTIONS = "exceptions.otherExceptions";

  void exception();

  /**
   * Different types of exceptions
   */
  void outOfOrderException();

  void failedSanityException();

  void movedRegionException();

  void notServingRegionException();

  void unknownScannerException();

  void scannerResetException();

  void tooBusyException();

  void multiActionTooLargeException();

  void callQueueTooBigException();

  void quotaExceededException();

  void rpcThrottlingException();

  void callDroppedException();

  void callTimedOut();

  void requestTooBigException();

  void otherExceptions();
}