| /** |
| * 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.phoenix.metrics; |
| |
| import org.apache.commons.configuration.SubsetConfiguration; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.metrics2.AbstractMetric; |
| import org.apache.hadoop.metrics2.MetricsRecord; |
| import org.apache.hadoop.metrics2.MetricsSink; |
| import org.apache.phoenix.trace.TracingUtils; |
| |
| /** |
| * Simple sink that just logs the output of all the metrics that start with |
| * {@link org.apache.phoenix.trace.TracingUtils#METRIC_SOURCE_KEY} |
| */ |
| public class LoggingSink implements MetricsSink { |
| |
| private static final Log LOG = LogFactory.getLog(LoggingSink.class); |
| |
| @Override |
| public void init(SubsetConfiguration config) { |
| } |
| |
| @Override |
| public void putMetrics(MetricsRecord record) { |
| // we could wait until flush, but this is a really lightweight process, so we just write |
| // them |
| // as soon as we get them |
| if (!LOG.isDebugEnabled()) { |
| return; |
| } |
| LOG.debug("Found record:" + record.name()); |
| for (AbstractMetric metric : record.metrics()) { |
| // just print the metric we care about |
| if (metric.name().startsWith(TracingUtils.METRIC_SOURCE_KEY)) { |
| LOG.debug("\t metric:" + metric); |
| } |
| } |
| } |
| |
| @Override |
| public void flush() { |
| } |
| } |