| /* |
| * 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.accumulo.server.rpc; |
| |
| import org.apache.accumulo.core.conf.AccumuloConfiguration; |
| import org.apache.accumulo.server.metrics.ThriftMetrics; |
| import org.apache.hadoop.metrics2.MetricsSystem; |
| import org.apache.thrift.TException; |
| import org.apache.thrift.TProcessor; |
| import org.apache.thrift.protocol.TProtocol; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * A {@link TProcessor} which tracks the duration of an RPC and adds it to the metrics subsystem. |
| */ |
| public class TimedProcessor implements TProcessor { |
| private static final Logger log = LoggerFactory.getLogger(TimedProcessor.class); |
| |
| private final TProcessor other; |
| private final ThriftMetrics thriftMetrics; |
| private long idleStart = 0; |
| |
| public TimedProcessor(MetricsSystem metricsSystem, AccumuloConfiguration conf, TProcessor next, |
| String serverName, String threadName) { |
| this(metricsSystem, next, serverName, threadName); |
| } |
| |
| public TimedProcessor(MetricsSystem metricsSystem, TProcessor next, String serverName, |
| String threadName) { |
| this.other = next; |
| thriftMetrics = new ThriftMetrics(serverName, threadName); |
| try { |
| thriftMetrics.register(metricsSystem); |
| } catch (Exception e) { |
| log.error("Exception registering MBean with MBean Server", e); |
| } |
| idleStart = System.currentTimeMillis(); |
| } |
| |
| @Override |
| public boolean process(TProtocol in, TProtocol out) throws TException { |
| long now = 0; |
| now = System.currentTimeMillis(); |
| thriftMetrics.addIdle(now - idleStart); |
| try { |
| return other.process(in, out); |
| } finally { |
| idleStart = System.currentTimeMillis(); |
| thriftMetrics.addExecute(idleStart - now); |
| } |
| } |
| } |