| /** |
| * 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.ambari.metrics.core.timeline; |
| |
| import com.google.common.collect.Multimap; |
| import org.apache.ambari.metrics.core.timeline.aggregators.Function; |
| import org.apache.ambari.metrics.core.timeline.query.Condition; |
| import org.apache.hadoop.metrics2.sink.timeline.SingleValuedTimelineMetric; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetric; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics; |
| |
| import java.io.IOException; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.TreeMap; |
| |
| import static org.apache.ambari.metrics.core.timeline.FunctionUtils.findMetricFunctions; |
| |
| class TransientMetricReadHelper { |
| |
| static void appendMetricFromResultSet(TimelineMetrics metrics, Condition condition, |
| Multimap<String, List<Function>> metricFunctions, |
| ResultSet rs) throws SQLException, IOException { |
| String metricName = rs.getString("METRIC_NAME"); |
| Collection<List<Function>> functionList = findMetricFunctions(metricFunctions, metricName); |
| |
| for (List<Function> functions : functionList) { |
| // Apply aggregation function if present |
| if ((functions != null && !functions.isEmpty())) { |
| if (functions.size() > 1) { |
| throw new IllegalArgumentException("Multiple aggregate functions not supported."); |
| } |
| for (Function f : functions) { |
| if (f.getReadFunction() == Function.ReadFunction.VALUE) { |
| getTimelineMetricsFromResultSet(metrics, f, condition, rs); |
| } else { |
| SingleValuedTimelineMetric metric = getAggregatedTimelineMetricFromResultSet(rs, f); |
| if (condition.isGrouped()) { |
| metrics.addOrMergeTimelineMetric(metric); |
| } else { |
| metrics.getMetrics().add(metric.getTimelineMetric()); |
| } |
| } |
| } |
| } else { |
| // No aggregation requested |
| // Execution never goes here, function always contain at least 1 element |
| getTimelineMetricsFromResultSet(metrics, null, condition, rs); |
| } |
| } |
| } |
| |
| private static TimelineMetric getTimelineMetricFromResultSet(ResultSet rs) |
| throws SQLException, IOException { |
| TimelineMetric metric = getTimelineMetricCommonsFromResultSet(rs); |
| TreeMap<Long, Double> sortedByTimeMetrics = PhoenixHBaseAccessor.readMetricFromJSON(rs.getString("METRICS")); |
| metric.setMetricValues(sortedByTimeMetrics); |
| return metric; |
| } |
| |
| private static TimelineMetric getTimelineMetricCommonsFromResultSet(ResultSet rs) |
| throws SQLException { |
| TimelineMetric metric = new TimelineMetric(); |
| metric.setMetricName(rs.getString("METRIC_NAME")); |
| metric.setAppId(rs.getString("APP_ID")); |
| metric.setInstanceId(rs.getString("INSTANCE_ID")); |
| metric.setHostName(rs.getString("HOSTNAME")); |
| metric.setStartTime(rs.getLong("SERVER_TIME")); |
| metric.setType(rs.getString("UNITS")); |
| return metric; |
| } |
| |
| private static void getTimelineMetricsFromResultSet(TimelineMetrics metrics, Function f, Condition condition, ResultSet rs) throws SQLException, IOException { |
| TimelineMetric metric = getTimelineMetricFromResultSet(rs); |
| if (f != null && f.getSuffix() != null) { |
| metric.setMetricName(metric.getMetricName() + f.getSuffix()); |
| } |
| if (condition.isGrouped()) { |
| metrics.addOrMergeTimelineMetric(metric); |
| } else { |
| metrics.getMetrics().add(metric); |
| } |
| } |
| |
| |
| private static SingleValuedTimelineMetric getAggregatedTimelineMetricFromResultSet(ResultSet rs, |
| Function f) throws SQLException, IOException { |
| |
| Function function = (f != null) ? f : Function.DEFAULT_VALUE_FUNCTION; |
| SingleValuedTimelineMetric metric = new SingleValuedTimelineMetric( |
| rs.getString("METRIC_NAME") + function.getSuffix(), |
| rs.getString("APP_ID"), |
| rs.getString("INSTANCE_ID"), |
| rs.getString("HOSTNAME"), |
| rs.getLong("SERVER_TIME") |
| ); |
| |
| double value; |
| switch(function.getReadFunction()){ |
| case AVG: |
| value = rs.getDouble("METRIC_SUM") / rs.getInt("METRIC_COUNT"); |
| break; |
| case MIN: |
| value = rs.getDouble("METRIC_MIN"); |
| break; |
| case MAX: |
| value = rs.getDouble("METRIC_MAX"); |
| break; |
| case SUM: |
| value = rs.getDouble("METRIC_SUM"); |
| break; |
| default: |
| value = rs.getDouble("METRIC_SUM") / rs.getInt("METRIC_COUNT"); |
| break; |
| } |
| |
| metric.setSingleTimeseriesValue(rs.getLong("SERVER_TIME"), value); |
| |
| return metric; |
| } |
| } |