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.integration.tests; import com.linkedin.pinot.controller.helix.ControllerTest; import com.linkedin.pinot.segments.v1.creator.SegmentTestUtils; import java.io.File; import java.io.IOException; import java.net.URL; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import java.util.concurrent.TimeUnit; import org.apache.commons.io.FileUtils; import org.apache.commons.lang.math.IntRange; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.json.JSONObject; import org.testng.annotations.AfterClass; import org.testng.annotations.BeforeClass; import org.testng.annotations.Test; import com.linkedin.pinot.common.data.FieldSpec; import com.linkedin.pinot.common.data.FieldSpec.DataType; import com.linkedin.pinot.common.data.FieldSpec.FieldType; import com.linkedin.pinot.core.data.readers.FileFormat; import com.linkedin.pinot.core.indexsegment.generator.SegmentGeneratorConfig; import com.linkedin.pinot.core.segment.creator.SegmentIndexCreationDriver; import com.linkedin.pinot.core.segment.creator.impl.SegmentCreationDriverFactory; import com.linkedin.pinot.tools.data.generator.DataGenerator; import com.linkedin.pinot.tools.data.generator.DataGeneratorSpec; /** * Sep 14, 2014 */ public class FileBasedSentineTest extends ControllerTest { private static final Logger LOGGER = LoggerFactory.getLogger(FileBasedSentineTest.class); private static URL url; private static final String AVRO_FILE_PATH = "/tmp/avroFiles"; FileBasedServerBrokerStarters starter; DataGenerator generator; private static File avroDataDir = new File(AVRO_FILE_PATH); @BeforeClass public void setup() throws Exception { url = new URL("http://localhost:" + FileBasedServerBrokerStarters.BROKER_CLIENT_PORT + "/query"); // lets generate data final String[] columns = { "dimention1", "dimention2", "dimention3", "dimention4", "metric1", "daysSinceEpoch" }; final Map<String, DataType> dataTypes = new HashMap<String, FieldSpec.DataType>(); final Map<String, FieldType> fieldTypes = new HashMap<String, FieldType>(); final Map<String, TimeUnit> timeUnits = new HashMap<String, TimeUnit>(); final Map<String, Integer> cardinality = new HashMap<String, Integer>(); // Crate empty range map as the signature of DataGeneratorSpec has changed, and this test does not // use metric/time as fieldType. final Map<String, IntRange> range = new HashMap<String, IntRange>(); for (final String col : columns) { if (col.equals("dimention1")) { dataTypes.put(col, DataType.STRING); cardinality.put(col, 1000); } else { dataTypes.put(col, DataType.INT); cardinality.put(col, 1000); } fieldTypes.put(col, FieldType.DIMENSION); } if (avroDataDir.exists()) { FileUtils.deleteDirectory(avroDataDir); } final DataGeneratorSpec spec = new DataGeneratorSpec(Arrays.asList(columns), cardinality, range, dataTypes, fieldTypes, timeUnits, FileFormat.AVRO, avroDataDir.getAbsolutePath(), true); generator = new DataGenerator(); generator.init(spec); generator.generate(100000L, 2); // lets make segments now final File bootstrapDir = new File(FileBasedServerBrokerStarters.SERVER_BOOTSTRAP_DIR); if (bootstrapDir.exists()) { FileUtils.deleteDirectory(bootstrapDir); } bootstrapDir.mkdir(); int counter = 0; for (final File avro : avroDataDir.listFiles()) { for (final String table : FileBasedServerBrokerStarters.TABLE_NAMES) { final SegmentGeneratorConfig genConfig = SegmentTestUtils .getSegmentGenSpecWithSchemAndProjectedColumns(avro, new File(bootstrapDir, "segment-" + counter), "daysSinceEpoch", TimeUnit.DAYS, table); final SegmentIndexCreationDriver driver = SegmentCreationDriverFactory.get(null); driver.init(genConfig); driver.build(); counter++; } } // lets start the server and the broker now starter = new FileBasedServerBrokerStarters(); starter.startAll(); // pick some values from here if you need to use it for running filter queries final JSONObject selectionRequestResponse = postQuery("select * from 'table1' limit 100", "http://localhost:" + FileBasedServerBrokerStarters.BROKER_CLIENT_PORT); System.out.println(selectionRequestResponse.toString(1)); } @AfterClass public void tearDown() throws IOException { starter.stopAll(); FileUtils.deleteDirectory(new File(FileBasedServerBrokerStarters.SERVER_BOOTSTRAP_DIR)); FileUtils.deleteDirectory(avroDataDir); FileUtils.deleteDirectory(new File(FileBasedServerBrokerStarters.SERVER_INDEX_DIR)); } @Test public void test1() { } }