flink-connector-kudu/src/test/java/org/apache/flink/connectors/kudu/table/KuduTableFactoryTest.java

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 * 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
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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.flink.connectors.kudu.table;

import org.apache.flink.connectors.kudu.connector.KuduTestBase;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.table.api.java.StreamTableEnvironment;
import org.apache.kudu.Type;
import org.apache.kudu.client.KuduScanner;
import org.apache.kudu.client.KuduTable;
import org.apache.kudu.client.RowResult;
import org.apache.kudu.shaded.com.google.common.collect.Lists;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

public class KuduTableFactoryTest extends KuduTestBase {
    private StreamTableEnvironment tableEnv;
    private String kuduMasters;

    @BeforeEach
    public void init() {
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment().setParallelism(1);
        tableEnv = KuduTableTestUtils.createTableEnvWithBlinkPlannerBatchMode(env);
        kuduMasters = harness.getMasterAddressesAsString();
    }

    @Test
    public void testMissingTable() throws Exception {
        tableEnv.sqlUpdate("CREATE TABLE TestTable11 (`first` STRING, `second` INT) " +
                "WITH ('connector.type'='kudu', 'kudu.masters'='" + kuduMasters + "')");
        assertThrows(NullPointerException.class,
                () -> tableEnv.sqlUpdate("INSERT INTO TestTable11 values ('f', 1)"));
    }

    @Test
    public void testMissingMasters() throws Exception {
        tableEnv.sqlUpdate("CREATE TABLE TestTable11 (`first` STRING, `second` INT) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTable11')");
        assertThrows(NullPointerException.class,
                () -> tableEnv.sqlUpdate("INSERT INTO TestTable11 values ('f', 1)"));
    }

    @Test
    public void testNonExistingTable() throws Exception {
        tableEnv.sqlUpdate("CREATE TABLE TestTable11 (`first` STRING, `second` INT) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTable11', 'kudu.masters'='" + kuduMasters + "')");
        tableEnv.sqlUpdate("INSERT INTO TestTable11 values ('f', 1)");
        assertThrows(java.util.concurrent.ExecutionException.class,
                () -> tableEnv.execute("test"));
    }

    @Test
    public void testCreateTable() throws Exception {
        tableEnv.sqlUpdate("CREATE TABLE TestTable11 (`first` STRING, `second` STRING) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTable11', 'kudu.masters'='" + kuduMasters + "', " +
                "'kudu.hash-columns'='first', 'kudu.primary-key-columns'='first')");
        tableEnv.sqlUpdate("INSERT INTO TestTable11 values ('f', 's')");
        tableEnv.execute("test");

        validateSingleKey("TestTable11");
    }
    @Test
    public void testTimestamp() throws Exception {
        // Timestamp should be bridged to sql.Timestamp
        // Test it when creating the table...
        tableEnv.sqlUpdate("CREATE TABLE TestTableTs (`first` STRING, `second` TIMESTAMP(3)) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTableTs', 'kudu.masters'='" + kuduMasters + "', " +
                "'kudu.hash-columns'='first', 'kudu.primary-key-columns'='first')");
        tableEnv.sqlUpdate("INSERT INTO TestTableTs values ('f', TIMESTAMP '2020-01-01 12:12:12.123456')");
        tableEnv.execute("test");

        // And also when inserting into existing table
        tableEnv.sqlUpdate("CREATE TABLE TestTableTsE (`first` STRING, `second` TIMESTAMP(3)) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTableTs', 'kudu.masters'='" + kuduMasters + "')");

        tableEnv.sqlUpdate("INSERT INTO TestTableTsE values ('s', TIMESTAMP '2020-02-02 23:23:23')");
        tableEnv.execute("test");

        KuduTable kuduTable = harness.getClient().openTable("TestTableTs");
        assertEquals(Type.UNIXTIME_MICROS, kuduTable.getSchema().getColumn("second").getType());

        KuduScanner scanner = harness.getClient().newScannerBuilder(kuduTable).build();
        HashSet<Timestamp> results = new HashSet<>();
        scanner.forEach(sc -> results.add(sc.getTimestamp("second")));

        assertEquals(2, results.size());
        List<Timestamp> expected = Lists.newArrayList(
                Timestamp.valueOf("2020-01-01 12:12:12.123"),
                Timestamp.valueOf("2020-02-02 23:23:23"));
        assertEquals(new HashSet<>(expected), results);
    }

    @Test
    public void testExistingTable() throws Exception {
        // Creating a table
        tableEnv.sqlUpdate("CREATE TABLE TestTable12 (`first` STRING, `second` STRING) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTable12', 'kudu.masters'='" + kuduMasters + "', " +
                "'kudu.hash-columns'='first', 'kudu.primary-key-columns'='first')");

        tableEnv.sqlUpdate("INSERT INTO TestTable12 values ('f', 's')");
        tableEnv.execute("test");

        // Then another one in SQL that refers to the previously created one
        tableEnv.sqlUpdate("CREATE TABLE TestTable12b (`first` STRING, `second` STRING) " +
                "WITH ('connector.type'='kudu', 'kudu.table'='TestTable12', 'kudu.masters'='" + kuduMasters + "')");
        tableEnv.sqlUpdate("INSERT INTO TestTable12b values ('f2','s2')");
        tableEnv.execute("test2");

        // Validate that both insertions were into the same table
        KuduTable kuduTable = harness.getClient().openTable("TestTable12");
        KuduScanner scanner = harness.getClient().newScannerBuilder(kuduTable).build();
        List<RowResult> rows = new ArrayList<>();
        scanner.forEach(rows::add);

        assertEquals(2, rows.size());
        assertEquals("f", rows.get(0).getString("first"));
        assertEquals("s", rows.get(0).getString("second"));
        assertEquals("f2", rows.get(1).getString("first"));
        assertEquals("s2", rows.get(1).getString("second"));
    }
}