| /** |
| * 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.apex.examples.distributeddistinct; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Properties; |
| |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.apex.malhar.lib.algo.UniqueValueCount; |
| import org.apache.apex.malhar.lib.util.KeyValPair; |
| import org.apache.hadoop.conf.Configuration; |
| |
| import com.datatorrent.api.Context.OperatorContext; |
| import com.datatorrent.api.DAG; |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.DefaultOutputPort; |
| import com.datatorrent.api.InputOperator; |
| import com.datatorrent.api.LocalMode; |
| import com.datatorrent.api.StreamingApplication; |
| import com.datatorrent.common.util.BaseOperator; |
| |
| public class StatefulUniqueCountTest |
| { |
| |
| public static final String INMEM_DB_URL = "jdbc:hsqldb:mem:test;sql.syntax_mys=true"; |
| public static final String INMEM_DB_DRIVER = "org.hsqldb.jdbc.JDBCDriver"; |
| public static final String TABLE_NAME = "Test_Lookup_Cache"; |
| |
| static class KeyGen implements InputOperator |
| { |
| |
| public transient DefaultOutputPort<KeyValPair<Integer, Object>> output = new DefaultOutputPort<KeyValPair<Integer, Object>>(); |
| |
| @Override |
| public void beginWindow(long windowId) |
| { |
| } |
| |
| public void emitKeyVals(int key, int start, int end, int increment) |
| { |
| for (int i = start; i <= end; i += increment) { |
| output.emit(new KeyValPair<Integer, Object>(key, i)); |
| } |
| } |
| |
| @Override |
| public void endWindow() |
| { |
| } |
| |
| @Override |
| public void setup(OperatorContext context) |
| { |
| |
| } |
| |
| @Override |
| public void teardown() |
| { |
| |
| } |
| |
| @Override |
| public void emitTuples() |
| { |
| emitKeyVals(1, 1, 10, 1); |
| emitKeyVals(2, 3, 15, 3); |
| emitKeyVals(3, 2, 20, 2); |
| emitKeyVals(1, 5, 15, 1); |
| emitKeyVals(2, 11, 20, 1); |
| emitKeyVals(3, 11, 20, 1); |
| } |
| } |
| |
| static class VerifyTable extends BaseOperator |
| { |
| |
| private static final String INMEM_DB_URL = "jdbc:hsqldb:mem:test;sql.syntax_mys=true"; |
| private static final String INMEM_DB_DRIVER = "org.hsqldb.jdbc.JDBCDriver"; |
| protected static final String TABLE_NAME = "Test_Lookup_Cache"; |
| |
| public final transient DefaultInputPort<Object> input = new DefaultInputPort<Object>() |
| { |
| @Override |
| public void process(Object tuple) |
| { |
| } |
| }; |
| |
| @Override |
| public void beginWindow(long windowId) |
| { |
| } |
| |
| @Override |
| public void endWindow() |
| { |
| try { |
| Class.forName(INMEM_DB_DRIVER).newInstance(); |
| Connection con = DriverManager.getConnection(INMEM_DB_URL, new Properties()); |
| Statement stmt = con.createStatement(); |
| ResultSet resultSet = stmt.executeQuery("SELECT col2 FROM " + TABLE_NAME + " WHERE col1 = 1"); |
| ArrayList<Integer> answersOne = new ArrayList<Integer>(); |
| for (int i = 1; i < 16; i++) { |
| answersOne.add(i); |
| } |
| Assert.assertEquals(answersOne, processResult(resultSet)); |
| |
| resultSet = stmt.executeQuery("SELECT col2 FROM " + TABLE_NAME + " WHERE col1 = 2"); |
| ArrayList<Integer> answersTwo = new ArrayList<Integer>(); |
| answersTwo.add(3); |
| answersTwo.add(6); |
| answersTwo.add(9); |
| for (int i = 11; i < 21; i++) { |
| answersTwo.add(i); |
| } |
| Assert.assertEquals(answersTwo, processResult(resultSet)); |
| |
| resultSet = stmt.executeQuery("SELECT col2 FROM " + TABLE_NAME + " WHERE col1 = 3"); |
| ArrayList<Integer> answersThree = new ArrayList<Integer>(); |
| answersThree.add(2); |
| answersThree.add(4); |
| answersThree.add(6); |
| answersThree.add(8); |
| answersThree.add(10); |
| for (int i = 11; i < 21; i++) { |
| answersThree.add(i); |
| } |
| Assert.assertEquals(answersThree, processResult(resultSet)); |
| } catch (Throwable e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public void setup(OperatorContext context) |
| { |
| } |
| |
| @Override |
| public void teardown() |
| { |
| |
| } |
| |
| public static ArrayList<Integer> processResult(ResultSet resultSet) |
| { |
| ArrayList<Integer> tempList = new ArrayList<Integer>(); |
| try { |
| while (resultSet.next()) { |
| tempList.add(resultSet.getInt(1)); |
| } |
| } catch (SQLException e) { |
| throw new RuntimeException(e); |
| } |
| Collections.sort(tempList); |
| return tempList; |
| } |
| } |
| |
| public class Application implements StreamingApplication |
| { |
| @SuppressWarnings("unchecked") |
| @Override |
| public void populateDAG(DAG dag, Configuration conf) |
| { |
| KeyGen keyGen = dag.addOperator("KeyGenerator", new KeyGen()); |
| UniqueValueCount<Integer> valCount = dag.addOperator("ValueCounter", new UniqueValueCount<Integer>()); |
| IntegerUniqueValueCountAppender uniqueUnifier = dag.addOperator("Unique", new IntegerUniqueValueCountAppender()); |
| VerifyTable verifyTable = dag.addOperator("VerifyTable", new VerifyTable()); |
| |
| @SuppressWarnings("rawtypes") |
| DefaultOutputPort valOut = valCount.output; |
| @SuppressWarnings("rawtypes") |
| DefaultOutputPort uniqueOut = uniqueUnifier.output; |
| dag.addStream("DataIn", keyGen.output, valCount.input); |
| dag.addStream("UnifyWindows", valOut, uniqueUnifier.input); |
| dag.addStream("ResultsOut", uniqueOut, verifyTable.input); |
| } |
| } |
| |
| @BeforeClass |
| public static void setup() |
| { |
| try { |
| Class.forName(INMEM_DB_DRIVER).newInstance(); |
| Connection con = DriverManager.getConnection(INMEM_DB_URL, new Properties()); |
| Statement stmt = con.createStatement(); |
| stmt.execute("CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " (col1 INTEGER, col2 INTEGER, col3 BIGINT)"); |
| } catch (InstantiationException e) { |
| throw new RuntimeException(e); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } catch (ClassNotFoundException e) { |
| throw new RuntimeException(e); |
| } catch (SQLException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Test |
| public void testApplication() throws Exception |
| { |
| LocalMode lma = LocalMode.newInstance(); |
| Configuration conf = new Configuration(false); |
| conf.set("dt.operator.Unique.prop.tableName", "Test_Lookup_Cache"); |
| conf.set("dt.operator.Unique.prop.store.dbUrl", "jdbc:hsqldb:mem:test;sql.syntax_mys=true"); |
| conf.set("dt.operator.Unique.prop.store.dbDriver", "org.hsqldb.jdbcDriver"); |
| |
| lma.prepareDAG(new Application(), conf); |
| lma.cloneDAG(); |
| LocalMode.Controller lc = lma.getController(); |
| lc.setHeartbeatMonitoringEnabled(false); |
| lc.runAsync(); |
| |
| long now = System.currentTimeMillis(); |
| while (System.currentTimeMillis() - now < 15000) { |
| Thread.sleep(1000); |
| } |
| lc.shutdown(); |
| } |
| } |