001/* 002 * (C) Copyright 2010 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 */ 019 020package org.nuxeo.runtime.management.metrics; 021 022import java.io.IOException; 023 024import org.apache.commons.logging.Log; 025import org.apache.commons.logging.LogFactory; 026import org.javasimon.CallbackSkeleton; 027import org.javasimon.Counter; 028import org.javasimon.Sample; 029import org.javasimon.Split; 030 031public class MetricSerializingCallback extends CallbackSkeleton { 032 033 protected static final Log log = LogFactory.getLog(MetricSerializingCallback.class); 034 035 protected final MetricSerializer serializer; 036 037 public MetricSerializingCallback(MetricSerializer serializer) { 038 this.serializer = serializer; 039 } 040 041 @Override 042 public void stopwatchStop(Split split) { 043 toStream(split.getStopwatch().sample()); 044 } 045 046 @Override 047 public void counterSet(Counter counter, long val) { 048 toStream(counter.sample()); 049 } 050 051 protected void toStream(Sample sample) { 052 try { 053 serializer.toStream(sample); 054 } catch (IOException e) { 055 log.info("not streamed " + sample, e); 056 } 057 } 058 059}