Java tutorial
/** * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com) * * Licensed 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 com.linkedin.pinot.perf; import java.io.File; import java.util.List; import org.apache.commons.configuration.Configuration; import org.apache.commons.configuration.PropertiesConfiguration; import com.google.common.collect.Lists; import com.linkedin.pinot.common.metadata.segment.IndexLoadingConfigMetadata; import com.linkedin.pinot.common.segment.ReadMode; import com.linkedin.pinot.core.segment.index.loader.Loaders; public class BitmapIndexCreationBenchmark { public static void main(String[] args) throws Exception { System.out.println("Starting generation"); Configuration tableDataManagerConfig = new PropertiesConfiguration(); List<String> indexColumns = Lists.newArrayList("contract_id", "seat_id"); tableDataManagerConfig.setProperty(IndexLoadingConfigMetadata.KEY_OF_LOADING_INVERTED_INDEX, indexColumns); IndexLoadingConfigMetadata indexLoadingConfigMetadata = new IndexLoadingConfigMetadata( tableDataManagerConfig); ReadMode mode = ReadMode.heap; File indexDir = new File( "/home/kgopalak/pinot_perf/index_dir/capReportingEvents_OFFLINE/capReportingEvents_capReportingEvents_daily_2"); long start = System.currentTimeMillis(); Loaders.IndexSegment.load(indexDir, mode, indexLoadingConfigMetadata); long end = System.currentTimeMillis(); System.out.println("Took " + (end - start) + " to generate bitmap index"); } }