1 /**
2 * Copyright 2011 The Apache Software Foundation
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20 package org.apache.hadoop.hbase.monitoring;
21
22 import org.apache.hadoop.hbase.util.Bytes;
23 import org.apache.hadoop.io.Writable;
24
25 /**
26 * A MonitoredTask implementation optimized for use with RPC Handlers
27 * handling frequent, short duration tasks. String concatenations and object
28 * allocations are avoided in methods that will be hit by every RPC call.
29 */
30 public interface MonitoredRPCHandler extends MonitoredTask {
31 public abstract String getRPC();
32 public abstract String getRPC(boolean withParams);
33 public abstract long getRPCPacketLength();
34 public abstract String getClient();
35 public abstract long getRPCStartTime();
36 public abstract long getRPCQueueTime();
37 public abstract boolean isRPCRunning();
38 public abstract boolean isOperationRunning();
39
40 public abstract void setRPC(String methodName, Object [] params,
41 long queueTime);
42 public abstract void setRPCPacket(Writable param);
43 public abstract void setConnection(String clientAddress, int remotePort);
44 }