| /** |
| * 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 com.datatorrent.lib.db.jdbc; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.concurrent.Callable; |
| |
| import javax.validation.ConstraintViolationException; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import com.datatorrent.api.Context; |
| import com.datatorrent.api.DAG; |
| 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; |
| import com.datatorrent.stram.StramLocalCluster; |
| |
| public class JdbcPojoOperatorApplicationTest extends JdbcOperatorTest |
| { |
| public static int TupleCount; |
| |
| public int getNumOfRowsinTable(String tableName) |
| { |
| Connection con; |
| try { |
| con = DriverManager.getConnection(URL); |
| Statement stmt = con.createStatement(); |
| String countQuery = "SELECT count(*) from " + tableName; |
| ResultSet resultSet = stmt.executeQuery(countQuery); |
| resultSet.next(); |
| return resultSet.getInt(1); |
| } catch (SQLException e) { |
| throw new RuntimeException("fetching count", e); |
| } |
| } |
| |
| @Test |
| public void testApplication() throws Exception |
| { |
| try { |
| LocalMode lma = LocalMode.newInstance(); |
| Configuration conf = new Configuration(false); |
| conf.addResource(this.getClass().getResourceAsStream("/JdbcProperties.xml")); |
| lma.prepareDAG(new JdbcPojoOperatorApplication(), conf); |
| LocalMode.Controller lc = lma.getController(); |
| lc.setHeartbeatMonitoringEnabled(false); |
| ((StramLocalCluster)lc).setExitCondition(new Callable<Boolean>() |
| { |
| @Override |
| public Boolean call() throws Exception |
| { |
| return getNumOfRowsinTable(TABLE_POJO_NAME) == 10; |
| } |
| }); |
| lc.run(10000);// runs for 10 seconds and quits |
| Assert.assertEquals("rows in db", 10, getNumOfRowsinTable(TABLE_POJO_NAME)); |
| } catch (ConstraintViolationException e) { |
| Assert.fail("constraint violations: " + e.getConstraintViolations()); |
| } |
| } |
| |
| public static class JdbcPojoOperatorApplication implements StreamingApplication |
| { |
| @Override |
| public void populateDAG(DAG dag, Configuration configuration) |
| { |
| JdbcPOJOInsertOutputOperator jdbc = dag.addOperator("JdbcOutput", new JdbcPOJOInsertOutputOperator()); |
| JdbcTransactionalStore outputStore = new JdbcTransactionalStore(); |
| outputStore.setDatabaseDriver(DB_DRIVER); |
| outputStore.setDatabaseUrl(URL); |
| jdbc.setStore(outputStore); |
| jdbc.setBatchSize(3); |
| jdbc.setTablename(TABLE_POJO_NAME); |
| dag.getMeta(jdbc).getMeta(jdbc.input).getAttributes().put(Context.PortContext.TUPLE_CLASS, TestPOJOEvent.class); |
| cleanTable(); |
| JdbcPojoEmitterOperator input = dag.addOperator("data", new JdbcPojoEmitterOperator()); |
| dag.addStream("pojo", input.output, jdbc.input); |
| } |
| } |
| |
| public static class JdbcPojoEmitterOperator extends BaseOperator implements InputOperator |
| { |
| public static int emitTuple = 10; |
| public final transient DefaultOutputPort<TestPOJOEvent> output = new DefaultOutputPort<TestPOJOEvent>(); |
| |
| @Override |
| public void emitTuples() |
| { |
| if (emitTuple > 0) { |
| output.emit(new TestPOJOEvent(emitTuple,"test" + emitTuple)); |
| emitTuple--; |
| TupleCount++; |
| } |
| } |
| |
| @Override |
| public void setup(Context.OperatorContext context) |
| { |
| TupleCount = 0; |
| } |
| } |
| } |