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apache / nifi / 9a125dcaafbaa922066f067d0c5e65f7286f8d44 / . / nifi-nar-bundles / nifi-standard-bundle / nifi-standard-processors / src / test / java / org / apache / nifi / processors / standard / TestGenerateTableFetch.java
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/*
* 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.nifi.processors.standard;
import org.apache.nifi.components.state.Scope;
import org.apache.nifi.components.state.StateManager;
import org.apache.nifi.controller.AbstractControllerService;
import org.apache.nifi.dbcp.DBCPService;
import org.apache.nifi.processor.exception.ProcessException;
import org.apache.nifi.processors.standard.db.impl.DerbyDatabaseAdapter;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.util.MockFlowFile;
import org.apache.nifi.util.MockProcessSession;
import org.apache.nifi.util.MockSessionFactory;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.apache.nifi.util.file.FileUtils;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.SQLNonTransientConnectionException;
import java.sql.Statement;
import java.sql.Types;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.apache.nifi.processors.standard.AbstractDatabaseFetchProcessor.DB_TYPE;
import static org.apache.nifi.processors.standard.AbstractDatabaseFetchProcessor.FRAGMENT_COUNT;
import static org.apache.nifi.processors.standard.AbstractDatabaseFetchProcessor.FRAGMENT_ID;
import static org.apache.nifi.processors.standard.AbstractDatabaseFetchProcessor.FRAGMENT_INDEX;
import static org.apache.nifi.processors.standard.AbstractDatabaseFetchProcessor.REL_SUCCESS;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
/**
* Unit tests for the GenerateTableFetch processor.
*/
public class TestGenerateTableFetch {
TestRunner runner;
GenerateTableFetch processor;
DBCPServiceSimpleImpl dbcp;
private final static String DB_LOCATION = "target/db_gtf";
@BeforeClass
public static void setupBeforeClass() throws IOException {
System.setProperty("derby.stream.error.file", "target/derby.log");
// remove previous test database, if any
final File dbLocation = new File(DB_LOCATION);
try {
FileUtils.deleteFile(dbLocation, true);
} catch (IOException ioe) {
// Do nothing, may not have existed
}
}
@AfterClass
public static void cleanUpAfterClass() throws Exception {
try {
DriverManager.getConnection("jdbc:derby:" + DB_LOCATION + ";shutdown=true");
} catch (SQLNonTransientConnectionException e) {
// Do nothing, this is what happens at Derby shutdown
}
// remove previous test database, if any
final File dbLocation = new File(DB_LOCATION);
try {
FileUtils.deleteFile(dbLocation, true);
} catch (IOException ioe) {
// Do nothing, may not have existed
}
}
@Before
public void setUp() throws Exception {
processor = new GenerateTableFetch();
//Mock the DBCP Controller Service so we can control the Results
dbcp = spy(new DBCPServiceSimpleImpl());
final Map<String, String> dbcpProperties = new HashMap<>();
runner = TestRunners.newTestRunner(processor);
runner.addControllerService("dbcp", dbcp, dbcpProperties);
runner.enableControllerService(dbcp);
runner.setProperty(GenerateTableFetch.DBCP_SERVICE, "dbcp");
runner.setProperty(DB_TYPE, new DerbyDatabaseAdapter().getName());
}
@Test
public void testAddedRows() throws SQLException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.run();
// Assert all the sessions were committed
MockSessionFactory runnerSessionFactory = (MockSessionFactory) runner.getProcessSessionFactory();
Set<MockProcessSession> sessions = runnerSessionFactory.getCreatedSessions();
for (MockProcessSession session : sessions) {
session.assertCommitted();
}
// Verify the expected FlowFile
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
flowFile.assertAttributeEquals(FRAGMENT_INDEX, "0");
flowFile.assertAttributeEquals(FRAGMENT_COUNT, "1");
ResultSet resultSet = stmt.executeQuery(query);
// Should be three records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Two flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (4, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Check fragment attributes
List<MockFlowFile> resultFFs = runner.getFlowFilesForRelationship(REL_SUCCESS);
MockFlowFile ff1 = resultFFs.get(0);
MockFlowFile ff2 = resultFFs.get(1);
assertEquals(ff1.getAttribute(FRAGMENT_ID), ff2.getAttribute(FRAGMENT_ID));
assertEquals(ff1.getAttribute(FRAGMENT_INDEX), "0");
assertEquals(ff1.getAttribute(FRAGMENT_COUNT), "2");
assertEquals(ff2.getAttribute(FRAGMENT_INDEX), "1");
assertEquals(ff2.getAttribute(FRAGMENT_COUNT), "2");
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Add a new row with a higher ID and run, one flow file will be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (6, 'Mr. NiFi', 1.0, '2012-01-01 03:23:34.234')");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 5 AND ID <= 6 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Set name as the max value column name (and clear the state), all rows should be returned since the max value for name has not been set
runner.getStateManager().clear(Scope.CLUSTER);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "name");
runner.setProperty(GenerateTableFetch.COLUMN_NAMES, "id, name, scale, created_on");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 4); // 7 records with partition size 2 means 4 generated FlowFiles
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT id, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
assertEquals("SELECT id, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(2);
assertEquals("SELECT id, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 4 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(3);
assertEquals("SELECT id, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 6 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
assertEquals("TEST_QUERY_DB_TABLE", flowFile.getAttribute("generatetablefetch.tableName"));
assertEquals("id, name, scale, created_on", flowFile.getAttribute("generatetablefetch.columnNames"));
assertEquals("name <= 'Mr. NiFi'", flowFile.getAttribute("generatetablefetch.whereClause"));
assertEquals("name", flowFile.getAttribute("generatetablefetch.maxColumnNames"));
assertEquals("2", flowFile.getAttribute("generatetablefetch.limit"));
assertEquals("6", flowFile.getAttribute("generatetablefetch.offset"));
runner.clearTransferState();
}
@Test
public void testAddedRowsTwoTables() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE2");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be three records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Create and populate a new table and re-run
stmt.execute("create table TEST_QUERY_DB_TABLE2 (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE2 WHERE ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be three records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Two flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (4, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE2 WHERE ID > 2 AND ID <= 5 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE2 WHERE ID > 2 AND ID <= 5 ORDER BY ID OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
}
@Test
public void testAddedRowsRightBounded() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be three records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Two flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (4, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Add a new row with a higher ID and run, one flow file will be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (6, 'Mr. NiFi', 1.0, '2012-01-01 03:23:34.234')");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 5 AND ID <= 6 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Set name as the max value column name (and clear the state), all rows should be returned since the max value for name has not been set
runner.getStateManager().clear(Scope.CLUSTER);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "name");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 4); // 7 records with partition size 2 means 4 generated FlowFiles
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(2);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 4 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(3);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE name <= 'Mr. NiFi' ORDER BY name OFFSET 6 ROWS FETCH NEXT 2 ROWS ONLY", new String(flowFile.toByteArray()));
runner.clearTransferState();
}
@Test
public void testAddedRowsTimestampRightBounded() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "created_on");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE created_on <= '2010-01-01 00:00:00.0' ORDER BY created_on FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be three records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 5 new rows, 3 with higher timestamps, 2 with a lower timestamp.
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (4, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 02:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (6, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (7, 'James Johnson', 16.0, '2011-01-01 04:23:34.236')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE created_on > '2010-01-01 00:00:00.0' AND "
+ "created_on <= '2011-01-01 04:23:34.236' ORDER BY created_on FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE created_on > '2010-01-01 00:00:00.0' AND "
+ "created_on <= '2011-01-01 04:23:34.236' ORDER BY created_on OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Add a new row with a higher created_on and run, one flow file will be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (8, 'Mr. NiFi', 1.0, '2012-01-01 03:23:34.234')");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE created_on > '2011-01-01 04:23:34.236' AND created_on <= '2012-01-01 03:23:34.234' ORDER BY created_on FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
}
@Test
public void testOnePartition() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
// Set partition size to 0 so we can see that the flow file gets all rows
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "0");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(GenerateTableFetch.REL_SUCCESS).get(0);
flowFile.assertContentEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 2");
flowFile.assertAttributeExists("generatetablefetch.limit");
flowFile.assertAttributeEquals("generatetablefetch.limit", null);
runner.clearTransferState();
}
@Test
public void testFlowFileGeneratedOnZeroResults() throws SQLException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.COLUMN_NAMES, "ID,BUCKET");
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
// Set partition size to 0 so we can see that the flow file gets all rows
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "1");
runner.setProperty(GenerateTableFetch.OUTPUT_EMPTY_FLOWFILE_ON_ZERO_RESULTS, "false");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 0);
runner.clearTransferState();
runner.setProperty(GenerateTableFetch.OUTPUT_EMPTY_FLOWFILE_ON_ZERO_RESULTS, "true");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(GenerateTableFetch.REL_SUCCESS).get(0);
assertEquals("TEST_QUERY_DB_TABLE", flowFile.getAttribute("generatetablefetch.tableName"));
assertEquals("ID,BUCKET", flowFile.getAttribute("generatetablefetch.columnNames"));
assertEquals("1=1", flowFile.getAttribute("generatetablefetch.whereClause"));
assertEquals("ID", flowFile.getAttribute("generatetablefetch.maxColumnNames"));
assertNull(flowFile.getAttribute("generatetablefetch.limit"));
assertNull(flowFile.getAttribute("generatetablefetch.offset"));
assertEquals("0", flowFile.getAttribute("fragment.index"));
assertEquals("0", flowFile.getAttribute("fragment.count"));
}
@Test
public void testMultiplePartitions() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID, BUCKET");
// Set partition size to 1 so we can compare flow files to records
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "1");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 2);
runner.clearTransferState();
// Add a new row in the same bucket
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 1);
runner.clearTransferState();
// Add a new row in a new bucket
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (3, 1)");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 1);
runner.clearTransferState();
// Add a new row in an old bucket, it should not be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (4, 0)");
runner.run();
runner.assertTransferCount(GenerateTableFetch.REL_SUCCESS, 0);
// Add a new row in the second bucket, only the new row should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (5, 1)");
runner.run();
runner.assertAllFlowFilesTransferred(GenerateTableFetch.REL_SUCCESS, 1);
runner.clearTransferState();
}
@Test
public void testMultiplePartitionsIncomingFlowFiles() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE1");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE1 (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE1 (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE1 (id, bucket) VALUES (1, 0)");
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE2");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE2 (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, bucket) VALUES (0, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "${partSize}");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE1");
put("partSize", "1");
}});
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE2");
put("partSize", "2");
}});
// The table does not exist, expect the original flow file to be routed to failure
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE3");
put("partSize", "1");
}});
runner.run(3);
runner.assertTransferCount(AbstractDatabaseFetchProcessor.REL_SUCCESS, 3);
// Two records from table 1
assertEquals(runner.getFlowFilesForRelationship(AbstractDatabaseFetchProcessor.REL_SUCCESS).stream().filter(
(ff) -> "TEST_QUERY_DB_TABLE1".equals(ff.getAttribute("tableName"))).count(),
2);
// One record from table 2
assertEquals(runner.getFlowFilesForRelationship(AbstractDatabaseFetchProcessor.REL_SUCCESS).stream().filter(
(ff) -> "TEST_QUERY_DB_TABLE2".equals(ff.getAttribute("tableName"))).count(),
1);
// Table 3 doesn't exist, should be routed to failure
runner.assertTransferCount(GenerateTableFetch.REL_FAILURE, 1);
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE1");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE2");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
}
@Test
public void testBackwardsCompatibilityStateKeyStaticTableDynamicMaxValues() throws Exception {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "${maxValueCol}");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("maxValueCol", "id");
}});
// Pre-populate the state with a key for column name (not fully-qualified)
StateManager stateManager = runner.getStateManager();
stateManager.setState(new HashMap<String, String>() {{
put("id", "0");
}}, Scope.CLUSTER);
// Pre-populate the column type map with an entry for id (not fully-qualified)
processor.columnTypeMap.put("id", 4);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id > 0 AND id <= 1 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
}
@Test
public void testBackwardsCompatibilityStateKeyDynamicTableDynamicMaxValues() throws Exception {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "${maxValueCol}");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
// Pre-populate the state with a key for column name (not fully-qualified)
StateManager stateManager = runner.getStateManager();
stateManager.setState(new HashMap<String, String>() {{
put("id", "0");
}}, Scope.CLUSTER);
// Pre-populate the column type map with an entry for id (not fully-qualified)
processor.columnTypeMap.put("id", 4);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
// Note there is no WHERE clause here. Because we are using dynamic tables, the old state key/value is not retrieved
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id <= 1 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
assertEquals("TEST_QUERY_DB_TABLE", flowFile.getAttribute("generatetablefetch.tableName"));
assertEquals(null, flowFile.getAttribute("generatetablefetch.columnNames"));
assertEquals("id <= 1", flowFile.getAttribute("generatetablefetch.whereClause"));
assertEquals("id", flowFile.getAttribute("generatetablefetch.maxColumnNames"));
assertEquals("10000", flowFile.getAttribute("generatetablefetch.limit"));
assertEquals("0", flowFile.getAttribute("generatetablefetch.offset"));
runner.clearTransferState();
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id > 1 AND id <= 2 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
assertEquals("TEST_QUERY_DB_TABLE", flowFile.getAttribute("generatetablefetch.tableName"));
assertEquals(null, flowFile.getAttribute("generatetablefetch.columnNames"));
assertEquals("id > 1 AND id <= 2", flowFile.getAttribute("generatetablefetch.whereClause"));
assertEquals("id", flowFile.getAttribute("generatetablefetch.maxColumnNames"));
assertEquals("10000", flowFile.getAttribute("generatetablefetch.limit"));
assertEquals("0", flowFile.getAttribute("generatetablefetch.offset"));
}
@Test
public void testBackwardsCompatibilityStateKeyDynamicTableStaticMaxValues() throws Exception {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "id");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
}});
// Pre-populate the state with a key for column name (not fully-qualified)
StateManager stateManager = runner.getStateManager();
stateManager.setState(new HashMap<String, String>() {{
put("id", "0");
}}, Scope.CLUSTER);
// Pre-populate the column type map with an entry for id (not fully-qualified)
processor.columnTypeMap.put("id", 4);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
// Note there is no WHERE clause here. Because we are using dynamic tables, the old state key/value is not retrieved
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id <= 1 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
runner.clearTransferState();
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id > 1 AND id <= 2 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
}
@Test
public void testBackwardsCompatibilityStateKeyVariableRegistry() throws Exception {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "${maxValueCol}");
runner.setVariable("tableName", "TEST_QUERY_DB_TABLE");
runner.setVariable("maxValueCol", "id");
// Pre-populate the state with a key for column name (not fully-qualified)
StateManager stateManager = runner.getStateManager();
stateManager.setState(new HashMap<String, String>() {{
put("id", "0");
}}, Scope.CLUSTER);
// Pre-populate the column type map with an entry for id (not fully-qualified)
processor.columnTypeMap.put("id", 4);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
// Note there is no WHERE clause here. Because we are using dynamic tables (i.e. Expression Language,
// even when not referring to flow file attributes), the old state key/value is not retrieved
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id <= 1 ORDER BY id FETCH NEXT 10000 ROWS ONLY", new String(flowFile.toByteArray()));
}
@Test
public void testRidiculousRowCount() throws ClassNotFoundException, SQLException, InitializationException, IOException {
long rowCount = Long.parseLong(Integer.toString(Integer.MAX_VALUE)) + 100;
int partitionSize = 1000000;
int expectedFileCount = (int) (rowCount / partitionSize) + 1;
Connection conn = mock(Connection.class);
when(dbcp.getConnection()).thenReturn(conn);
Statement st = mock(Statement.class);
when(conn.createStatement()).thenReturn(st);
doNothing().when(st).close();
ResultSet rs = mock(ResultSet.class);
when(st.executeQuery(anyString())).thenReturn(rs);
when(rs.next()).thenReturn(true);
when(rs.getInt(1)).thenReturn((int) rowCount);
when(rs.getLong(1)).thenReturn(rowCount);
final ResultSetMetaData resultSetMetaData = mock(ResultSetMetaData.class);
when(rs.getMetaData()).thenReturn(resultSetMetaData);
when(resultSetMetaData.getColumnCount()).thenReturn(2);
when(resultSetMetaData.getTableName(1)).thenReturn("");
when(resultSetMetaData.getColumnType(1)).thenReturn(Types.INTEGER);
when(resultSetMetaData.getColumnName(1)).thenReturn("COUNT");
when(resultSetMetaData.getColumnType(2)).thenReturn(Types.INTEGER);
when(resultSetMetaData.getColumnName(2)).thenReturn("ID");
when(rs.getInt(2)).thenReturn(1000);
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, Integer.toString(partitionSize));
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, expectedFileCount);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE 1=1 ORDER BY ID FETCH NEXT 1000000 ROWS ONLY", query);
runner.clearTransferState();
}
@Test
public void testInitialMaxValue() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty("initial.maxvalue.ID", "1");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 1 AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be one record (the initial max value skips the first two)
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Two flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (4, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.setProperty("initial.maxvalue.ID", "5"); // This should have no effect as there is a max value in the processor state
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND ID <= 5 ORDER BY ID OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
}
@Test
public void testInitialMaxValueWithEL() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty("initial.maxvalue.ID", "${maxval.id}");
runner.setVariable("maxval.id", "1");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 1 AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be one record (the initial max value skips the first two)
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
}
@Test
public void testInitialMaxValueWithELAndIncoming() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty("initial.maxvalue.ID", "${maxval.id}");
Map<String,String> attrs = new HashMap<String,String>() {{
put("maxval.id", "1");
}};
runner.setIncomingConnection(true);
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 1 AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be one record (the initial max value skips the first two)
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
}
@Test
public void testInitialMaxValueWithELAndMultipleTables() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${table.name}");
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty("initial.maxvalue.ID", "${maxval.id}");
Map<String,String> attrs = new HashMap<String,String>() {{
put("maxval.id", "1");
put("table.name", "TEST_QUERY_DB_TABLE");
}};
runner.setIncomingConnection(true);
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 1 AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be one record (the initial max value skips the first two)
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Initial Max Value for second table
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE2");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE2 (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE2 (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
attrs.put("table.name", "TEST_QUERY_DB_TABLE2");
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE2 WHERE ID > 1 AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record (the initial max value skips the first two)
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.enqueue(new byte[0], attrs);
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
}
@Test
public void testNoDuplicateWithRightBounded() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
// we now insert a row before the query issued by GFT is actually executed by, let's say, ExecuteSQL processor
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (3, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (4, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (5, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
ResultSet resultSet = stmt.executeQuery(query);
int numberRecordsFirstExecution = 0; // Should be three records
while (resultSet.next()) {
numberRecordsFirstExecution++;
}
runner.clearTransferState();
// Run again
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
resultSet = stmt.executeQuery(query);
int numberRecordsSecondExecution = 0; // Should be three records
while (resultSet.next()) {
numberRecordsSecondExecution++;
}
// will fail and will be equal to 9 if right-bounded parameter is set to false.
assertEquals(numberRecordsFirstExecution + numberRecordsSecondExecution, 6);
runner.clearTransferState();
}
@Test
public void testAddedRowsWithCustomWhereClause() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, type varchar(20), name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (0, 'male', 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (1, 'female', 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (2, NULL, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setProperty(GenerateTableFetch.WHERE_CLAUSE, "type = 'male' OR type IS NULL");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND ID <= 2 ORDER BY ID FETCH NEXT 10000 ROWS ONLY", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Two flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (3, 'female', 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (4, 'male', 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (5, 'male', 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "1");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND (type = 'male' OR type IS NULL)"
+ " AND ID <= 5 ORDER BY ID FETCH NEXT 1 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 2 AND (type = 'male' OR type IS NULL)"
+ " AND ID <= 5 ORDER BY ID OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Add a new row with a higher ID and run, one flow file will be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, type, name, scale, created_on) VALUES (6, 'male', 'Mr. NiFi', 1.0, '2012-01-01 03:23:34.234')");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 5 AND (type = 'male' OR type IS NULL)"
+ " AND ID <= 6 ORDER BY ID FETCH NEXT 1 ROWS ONLY", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Set name as the max value column name (and clear the state), all rows should be returned since the max value for name has not been set
runner.getStateManager().clear(Scope.CLUSTER);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "name");
runner.setProperty(GenerateTableFetch.COLUMN_NAMES, "id, type, name, scale, created_on");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 5); // 5 records with partition size 1 means 5 generated FlowFiles
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
assertEquals("SELECT id, type, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND name <= 'Mr. NiFi' ORDER BY name FETCH NEXT 1 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
assertEquals("SELECT id, type, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND name <= 'Mr. NiFi' ORDER BY name OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(2);
assertEquals("SELECT id, type, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND name <= 'Mr. NiFi' ORDER BY name OFFSET 2 ROWS FETCH NEXT 1 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(3);
assertEquals("SELECT id, type, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND name <= 'Mr. NiFi' ORDER BY name OFFSET 3 ROWS FETCH NEXT 1 ROWS ONLY", new String(flowFile.toByteArray()));
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(4);
assertEquals("SELECT id, type, name, scale, created_on FROM TEST_QUERY_DB_TABLE WHERE (type = 'male' OR type IS NULL)"
+ " AND name <= 'Mr. NiFi' ORDER BY name OFFSET 4 ROWS FETCH NEXT 1 ROWS ONLY", new String(flowFile.toByteArray()));
assertEquals("TEST_QUERY_DB_TABLE", flowFile.getAttribute("generatetablefetch.tableName"));
assertEquals("id, type, name, scale, created_on", flowFile.getAttribute("generatetablefetch.columnNames"));
assertEquals("(type = 'male' OR type IS NULL) AND name <= 'Mr. NiFi'", flowFile.getAttribute("generatetablefetch.whereClause"));
assertEquals("name", flowFile.getAttribute("generatetablefetch.maxColumnNames"));
assertEquals("1", flowFile.getAttribute("generatetablefetch.limit"));
assertEquals("4", flowFile.getAttribute("generatetablefetch.offset"));
runner.clearTransferState();
}
@Test
public void testColumnTypeMissing() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// Load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (0, 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "${maxValueCol}");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id <= 1 ORDER BY id FETCH NEXT 10000 ROWS ONLY", query);
runner.clearTransferState();
// Clear columnTypeMap to simulate it's clean after instance reboot
processor.columnTypeMap.clear();
// Insert new records
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
// Re-launch FlowFile to se if re-cache column type works
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
// It should re-cache column type
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE id > 1 AND id <= 2 ORDER BY id FETCH NEXT 10000 ROWS ONLY", query);
runner.clearTransferState();
}
@Test
public void testMultipleColumnTypeMissing() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// Load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
stmt.execute("drop table TEST_QUERY_DB_TABLE_2");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
// Create multiple table to invoke processor state stored
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (1, 0)");
stmt.execute("create table TEST_QUERY_DB_TABLE_2 (id integer not null, bucket integer not null)");
stmt.execute("insert into TEST_QUERY_DB_TABLE_2 (id, bucket) VALUES (1, 0)");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "${tableName}");
runner.setIncomingConnection(true);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "${maxValueCol}");
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE_2");
put("maxValueCol", "id");
}});
runner.run(2);
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
assertEquals(2, processor.columnTypeMap.size());
runner.clearTransferState();
// Remove one element from columnTypeMap to simulate it's re-cache partial state
Map.Entry<String, Integer> entry = processor.columnTypeMap.entrySet().iterator().next();
String key = entry.getKey();
processor.columnTypeMap.remove(key);
// Insert new records
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, bucket) VALUES (2, 0)");
// Re-launch FlowFile to se if re-cache column type works
runner.enqueue("".getBytes(), new HashMap<String, String>() {{
put("tableName", "TEST_QUERY_DB_TABLE");
put("maxValueCol", "id");
}});
// It should re-cache column type
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 1);
assertEquals(2, processor.columnTypeMap.size());
runner.clearTransferState();
}
@Test
public void testUseColumnValuesForPartitioning() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (10, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (11, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (12, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.MAX_VALUE_COLUMN_NAMES, "ID");
runner.setProperty(GenerateTableFetch.COLUMN_FOR_VALUE_PARTITIONING, "ID");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// First flow file
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 12 AND ID >= 10 AND ID < 12", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Second flow file
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 12 AND ID >= 12 AND ID < 14", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, this time no flowfiles/rows should be transferred
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 0);
runner.clearTransferState();
// Add 3 new rows with a higher ID and run with a partition size of 2. Three flow files should be transferred
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (20, 'Mary West', 15.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (21, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (24, 'Marty Johnson', 15.0, '2011-01-01 03:23:34.234')");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 3);
// Verify first flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 12 AND ID <= 24 AND ID >= 20 AND ID < 22", query);
resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Verify second flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 12 AND ID <= 24 AND ID >= 22 AND ID < 24", query);
resultSet = stmt.executeQuery(query);
// Should be no records
assertFalse(resultSet.next());
// Verify third flow file's contents
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(2);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID > 12 AND ID <= 24 AND ID >= 24 AND ID < 26", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
}
@Test
public void testUseColumnValuesForPartitioningNoMaxValueColumn() throws ClassNotFoundException, SQLException, InitializationException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (10, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (11, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (12, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.COLUMN_FOR_VALUE_PARTITIONING, "ID");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
// First flow file
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE 1=1 AND ID >= 10 AND ID < 12", query);
ResultSet resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
// Second flow file
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE ID <= 12 AND ID >= 12", query);
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
// Run again, the same flowfiles should be transferred as we have no maximum-value column
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
runner.clearTransferState();
}
@Test
public void testCustomOrderByColumn() throws SQLException, IOException {
// load test data to database
final Connection con = ((DBCPService) runner.getControllerService("dbcp")).getConnection();
Statement stmt = con.createStatement();
try {
stmt.execute("drop table TEST_QUERY_DB_TABLE");
} catch (final SQLException sqle) {
// Ignore this error, probably a "table does not exist" since Derby doesn't yet support DROP IF EXISTS [DERBY-4842]
}
stmt.execute("create table TEST_QUERY_DB_TABLE (id integer not null, name varchar(100), scale float, created_on timestamp, bignum bigint default 0)");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (0, 'Joe Smith', 1.0, '1962-09-23 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (1, 'Carrie Jones', 5.0, '2000-01-01 03:23:34.234')");
stmt.execute("insert into TEST_QUERY_DB_TABLE (id, name, scale, created_on) VALUES (2, NULL, 2.0, '2010-01-01 00:00:00')");
runner.setProperty(GenerateTableFetch.TABLE_NAME, "TEST_QUERY_DB_TABLE");
runner.setIncomingConnection(false);
runner.setProperty(GenerateTableFetch.CUSTOM_ORDERBY_COLUMN, "SCALE");
runner.setProperty(GenerateTableFetch.PARTITION_SIZE, "2");
runner.run();
runner.assertAllFlowFilesTransferred(REL_SUCCESS, 2);
MockFlowFile flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
String query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE 1=1 ORDER BY SCALE FETCH NEXT 2 ROWS ONLY", query);
flowFile.assertAttributeEquals(FRAGMENT_INDEX, "0");
flowFile.assertAttributeEquals(FRAGMENT_COUNT, "2");
ResultSet resultSet = stmt.executeQuery(query);
// Should be two records
assertTrue(resultSet.next());
assertTrue(resultSet.next());
assertFalse(resultSet.next());
flowFile = runner.getFlowFilesForRelationship(REL_SUCCESS).get(1);
query = new String(flowFile.toByteArray());
assertEquals("SELECT * FROM TEST_QUERY_DB_TABLE WHERE 1=1 ORDER BY SCALE OFFSET 2 ROWS FETCH NEXT 2 ROWS ONLY", query);
flowFile.assertAttributeEquals(FRAGMENT_INDEX, "1");
flowFile.assertAttributeEquals(FRAGMENT_COUNT, "2");
resultSet = stmt.executeQuery(query);
// Should be one record
assertTrue(resultSet.next());
assertFalse(resultSet.next());
runner.clearTransferState();
}
/**
* Simple implementation only for GenerateTableFetch processor testing.
*/
private class DBCPServiceSimpleImpl extends AbstractControllerService implements DBCPService {
@Override
public String getIdentifier() {
return "dbcp";
}
@Override
public Connection getConnection() throws ProcessException {
try {
Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
return DriverManager.getConnection("jdbc:derby:" + DB_LOCATION + ";create=true");
} catch (final Exception e) {
throw new ProcessException("getConnection failed: " + e);
}
}
}
}