| /** |
| * Copyright The Apache Software Foundation |
| * |
| * 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; |
| |
| import java.util.Map; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.apache.yetus.audience.InterfaceStability; |
| |
| /** |
| * Encapsulates per-user load metrics. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public interface UserMetrics { |
| |
| interface ClientMetrics { |
| |
| String getHostName(); |
| |
| long getReadRequestsCount(); |
| |
| long getWriteRequestsCount(); |
| |
| long getFilteredReadRequestsCount(); |
| } |
| |
| /** |
| * @return the user name |
| */ |
| byte[] getUserName(); |
| |
| /** |
| * @return the number of read requests made by user |
| */ |
| long getReadRequestCount(); |
| |
| /** |
| * @return the number of write requests made by user |
| */ |
| long getWriteRequestCount(); |
| |
| /** |
| * @return the number of write requests and read requests and coprocessor |
| * service requests made by the user |
| */ |
| default long getRequestCount() { |
| return getReadRequestCount() + getWriteRequestCount(); |
| } |
| |
| /** |
| * @return the user name as a string |
| */ |
| default String getNameAsString() { |
| return Bytes.toStringBinary(getUserName()); |
| } |
| |
| /** |
| * @return metrics per client(hostname) |
| */ |
| Map<String, ClientMetrics> getClientMetrics(); |
| |
| /** |
| * @return count of filtered read requests for a user |
| */ |
| long getFilteredReadRequests(); |
| } |