Java Code Examples for org.apache.flink.table.api.java.BatchTableEnvironment#registerTableSource()

The following examples show how to use org.apache.flink.table.api.java.BatchTableEnvironment#registerTableSource() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: JavaTableSourceITCase.java From Flink-CEPplus with Apache License 2.0

6 votes

@Test
public void testBatchTableSourceTableAPI() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, config());
	BatchTableSource csvTable = CommonTestData.getCsvTableSource();

	tableEnv.registerTableSource("persons", csvTable);

	Table result = tableEnv.scan("persons")
		.select("id, first, last, score");

	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected = "1,Mike,Smith,12.3\n" +
		"2,Bob,Taylor,45.6\n" +
		"3,Sam,Miller,7.89\n" +
		"4,Peter,Smith,0.12\n" +
		"5,Liz,Williams,34.5\n" +
		"6,Sally,Miller,6.78\n" +
		"7,Alice,Smith,90.1\n" +
		"8,Kelly,Williams,2.34\n";

	compareResultAsText(results, expected);
}

Example 2

Source File: JavaTableSourceITCase.java From Flink-CEPplus with Apache License 2.0

6 votes

@Test
public void testBatchTableSourceSQL() throws Exception {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, config());
	BatchTableSource csvTable = CommonTestData.getCsvTableSource();

	tableEnv.registerTableSource("persons", csvTable);

	Table result = tableEnv
		.sqlQuery("SELECT `last`, FLOOR(id), score * 2 FROM persons WHERE score < 20");

	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected = "Smith,1,24.6\n" +
		"Miller,3,15.78\n" +
		"Smith,4,0.24\n" +
		"Miller,6,13.56\n" +
		"Williams,8,4.68\n";

	compareResultAsText(results, expected);
}

Example 3

Source File: JavaTableSourceITCase.java From flink with Apache License 2.0

6 votes

@Test
public void testBatchTableSourceTableAPI() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, config());
	BatchTableSource csvTable = CommonTestData.getCsvTableSource();

	tableEnv.registerTableSource("persons", csvTable);

	Table result = tableEnv.scan("persons")
		.select("id, first, last, score");

	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected = "1,Mike,Smith,12.3\n" +
		"2,Bob,Taylor,45.6\n" +
		"3,Sam,Miller,7.89\n" +
		"4,Peter,Smith,0.12\n" +
		"5,Liz,Williams,34.5\n" +
		"6,Sally,Miller,6.78\n" +
		"7,Alice,Smith,90.1\n" +
		"8,Kelly,Williams,2.34\n";

	compareResultAsText(results, expected);
}

Example 4

Source File: JavaTableSourceITCase.java From flink with Apache License 2.0

6 votes

@Test
public void testBatchTableSourceSQL() throws Exception {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, config());
	BatchTableSource csvTable = CommonTestData.getCsvTableSource();

	tableEnv.registerTableSource("persons", csvTable);

	Table result = tableEnv
		.sqlQuery("SELECT `last`, FLOOR(id), score * 2 FROM persons WHERE score < 20");

	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected = "Smith,1,24.6\n" +
		"Miller,3,15.78\n" +
		"Smith,4,0.24\n" +
		"Miller,6,13.56\n" +
		"Williams,8,4.68\n";

	compareResultAsText(results, expected);
}

Example 5

Source File: ParquetTableSourceITCase.java From flink with Apache License 2.0

6 votes

@Test
public void testFullScan() throws Exception {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment batchTableEnvironment = BatchTableEnvironment.create(env);
	ParquetTableSource tableSource = createParquetTableSource(testPath);
	batchTableEnvironment.registerTableSource("ParquetTable", tableSource);
	String query =
		"SELECT foo " +
		"FROM ParquetTable";

	Table table = batchTableEnvironment.sqlQuery(query);
	DataSet<Row> dataSet = batchTableEnvironment.toDataSet(table, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(1000, result.size());
}

Example 6

Source File: ParquetTableSourceITCase.java From flink with Apache License 2.0

6 votes

@Test
public void testScanWithProjectionAndFilter() throws Exception {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment batchTableEnvironment = BatchTableEnvironment.create(env);
	ParquetTableSource tableSource = createParquetTableSource(testPath);
	batchTableEnvironment.registerTableSource("ParquetTable", tableSource);
	String query =
		"SELECT foo " +
		"FROM ParquetTable WHERE bar.spam >= 30 AND CARDINALITY(arr) >= 1 AND arr[1] <= 50";

	Table table = batchTableEnvironment.sqlQuery(query);
	DataSet<Row> dataSet = batchTableEnvironment.toDataSet(table, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(21, result.size());
}

Example 7

Source File: HBaseConnectorITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testTableSourceFullScan() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	env.setParallelism(4);
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, new TableConfig());
	HBaseTableSource hbaseTable = new HBaseTableSource(getConf(), TEST_TABLE);
	hbaseTable.addColumn(FAMILY1, F1COL1, Integer.class);
	hbaseTable.addColumn(FAMILY2, F2COL1, String.class);
	hbaseTable.addColumn(FAMILY2, F2COL2, Long.class);
	hbaseTable.addColumn(FAMILY3, F3COL1, Double.class);
	hbaseTable.addColumn(FAMILY3, F3COL2, Boolean.class);
	hbaseTable.addColumn(FAMILY3, F3COL3, String.class);
	tableEnv.registerTableSource("hTable", hbaseTable);

	Table result = tableEnv.sqlQuery(
		"SELECT " +
			"  h.family1.col1, " +
			"  h.family2.col1, " +
			"  h.family2.col2, " +
			"  h.family3.col1, " +
			"  h.family3.col2, " +
			"  h.family3.col3 " +
			"FROM hTable AS h"
	);
	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected =
		"10,Hello-1,100,1.01,false,Welt-1\n" +
		"20,Hello-2,200,2.02,true,Welt-2\n" +
		"30,Hello-3,300,3.03,false,Welt-3\n" +
		"40,null,400,4.04,true,Welt-4\n" +
		"50,Hello-5,500,5.05,false,Welt-5\n" +
		"60,Hello-6,600,6.06,true,Welt-6\n" +
		"70,Hello-7,700,7.07,false,Welt-7\n" +
		"80,null,800,8.08,true,Welt-8\n";

	TestBaseUtils.compareResultAsText(results, expected);
}

Example 8

Source File: HBaseConnectorITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testTableSourceProjection() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	env.setParallelism(4);
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, new TableConfig());
	HBaseTableSource hbaseTable = new HBaseTableSource(getConf(), TEST_TABLE);
	hbaseTable.addColumn(FAMILY1, F1COL1, Integer.class);
	hbaseTable.addColumn(FAMILY2, F2COL1, String.class);
	hbaseTable.addColumn(FAMILY2, F2COL2, Long.class);
	hbaseTable.addColumn(FAMILY3, F3COL1, Double.class);
	hbaseTable.addColumn(FAMILY3, F3COL2, Boolean.class);
	hbaseTable.addColumn(FAMILY3, F3COL3, String.class);
	tableEnv.registerTableSource("hTable", hbaseTable);

	Table result = tableEnv.sqlQuery(
		"SELECT " +
			"  h.family1.col1, " +
			"  h.family3.col1, " +
			"  h.family3.col2, " +
			"  h.family3.col3 " +
			"FROM hTable AS h"
	);
	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected =
		"10,1.01,false,Welt-1\n" +
		"20,2.02,true,Welt-2\n" +
		"30,3.03,false,Welt-3\n" +
		"40,4.04,true,Welt-4\n" +
		"50,5.05,false,Welt-5\n" +
		"60,6.06,true,Welt-6\n" +
		"70,7.07,false,Welt-7\n" +
		"80,8.08,true,Welt-8\n";

	TestBaseUtils.compareResultAsText(results, expected);
}

Example 9

Source File: HBaseConnectorITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testTableSourceFieldOrder() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	env.setParallelism(4);
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, new TableConfig());
	HBaseTableSource hbaseTable = new HBaseTableSource(getConf(), TEST_TABLE);
	// shuffle order of column registration
	hbaseTable.addColumn(FAMILY2, F2COL1, String.class);
	hbaseTable.addColumn(FAMILY3, F3COL1, Double.class);
	hbaseTable.addColumn(FAMILY1, F1COL1, Integer.class);
	hbaseTable.addColumn(FAMILY2, F2COL2, Long.class);
	hbaseTable.addColumn(FAMILY3, F3COL2, Boolean.class);
	hbaseTable.addColumn(FAMILY3, F3COL3, String.class);
	tableEnv.registerTableSource("hTable", hbaseTable);

	Table result = tableEnv.sqlQuery(
		"SELECT * FROM hTable AS h"
	);
	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected =
		"Hello-1,100,1.01,false,Welt-1,10\n" +
		"Hello-2,200,2.02,true,Welt-2,20\n" +
		"Hello-3,300,3.03,false,Welt-3,30\n" +
		"null,400,4.04,true,Welt-4,40\n" +
		"Hello-5,500,5.05,false,Welt-5,50\n" +
		"Hello-6,600,6.06,true,Welt-6,60\n" +
		"Hello-7,700,7.07,false,Welt-7,70\n" +
		"null,800,8.08,true,Welt-8,80\n";

	TestBaseUtils.compareResultAsText(results, expected);
}

Example 10

Source File: HBaseConnectorITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testTableSourceReadAsByteArray() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	env.setParallelism(4);
	BatchTableEnvironment tableEnv = BatchTableEnvironment.create(env, new TableConfig());
	// fetch row2 from the table till the end
	HBaseTableSource hbaseTable = new HBaseTableSource(getConf(), TEST_TABLE);
	hbaseTable.addColumn(FAMILY2, F2COL1, byte[].class);
	hbaseTable.addColumn(FAMILY2, F2COL2, byte[].class);

	tableEnv.registerTableSource("hTable", hbaseTable);
	tableEnv.registerFunction("toUTF8", new ToUTF8());
	tableEnv.registerFunction("toLong", new ToLong());

	Table result = tableEnv.sqlQuery(
		"SELECT " +
			"  toUTF8(h.family2.col1), " +
			"  toLong(h.family2.col2) " +
			"FROM hTable AS h"
	);
	DataSet<Row> resultSet = tableEnv.toDataSet(result, Row.class);
	List<Row> results = resultSet.collect();

	String expected =
		"Hello-1,100\n" +
		"Hello-2,200\n" +
		"Hello-3,300\n" +
		"null,400\n" +
		"Hello-5,500\n" +
		"Hello-6,600\n" +
		"Hello-7,700\n" +
		"null,800\n";

	TestBaseUtils.compareResultAsText(results, expected);
}

Example 11

Source File: OrcTableSourceITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testFullScan() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tEnv = BatchTableEnvironment.create(env);

	OrcTableSource orc = OrcTableSource.builder()
		.path(getPath(TEST_FILE_FLAT))
		.forOrcSchema(TEST_SCHEMA_FLAT)
		.build();
	tEnv.registerTableSource("OrcTable", orc);

	String query =
		"SELECT COUNT(*), " +
			"MIN(_col0), MAX(_col0), " +
			"MIN(_col1), MAX(_col1), " +
			"MIN(_col2), MAX(_col2), " +
			"MIN(_col3), MAX(_col3), " +
			"MIN(_col4), MAX(_col4), " +
			"MIN(_col5), MAX(_col5), " +
			"MIN(_col6), MAX(_col6), " +
			"MIN(_col7), MAX(_col7), " +
			"MIN(_col8), MAX(_col8) " +
		"FROM OrcTable";
	Table t = tEnv.sqlQuery(query);

	DataSet<Row> dataSet = tEnv.toDataSet(t, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(1, result.size());
	assertEquals(
		"1920800,1,1920800,F,M,D,W,2 yr Degree,Unknown,500,10000,Good,Unknown,0,6,0,6,0,6",
		result.get(0).toString());
}

Example 12

Source File: OrcTableSourceITCase.java From Flink-CEPplus with Apache License 2.0

5 votes

@Test
public void testScanWithProjectionAndFilter() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tEnv = BatchTableEnvironment.create(env);

	OrcTableSource orc = OrcTableSource.builder()
		.path(getPath(TEST_FILE_FLAT))
		.forOrcSchema(TEST_SCHEMA_FLAT)
		.build();
	tEnv.registerTableSource("OrcTable", orc);

	String query =
		"SELECT " +
			"MIN(_col4), MAX(_col4), " +
			"MIN(_col3), MAX(_col3), " +
			"MIN(_col0), MAX(_col0), " +
			"MIN(_col2), MAX(_col2), " +
			"COUNT(*) " +
			"FROM OrcTable " +
			"WHERE (_col0 BETWEEN 4975 and 5024 OR _col0 BETWEEN 9975 AND 10024) AND _col1 = 'F'";
	Table t = tEnv.sqlQuery(query);

	DataSet<Row> dataSet = tEnv.toDataSet(t, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(1, result.size());
	assertEquals(
		"1500,6000,2 yr Degree,Unknown,4976,10024,D,W,50",
		result.get(0).toString());
}

Example 13

Source File: OrcTableSourceITCase.java From flink with Apache License 2.0

5 votes

@Test
public void testFullScan() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tEnv = BatchTableEnvironment.create(env);

	OrcTableSource orc = OrcTableSource.builder()
		.path(getPath(TEST_FILE_FLAT))
		.forOrcSchema(TEST_SCHEMA_FLAT)
		.build();
	tEnv.registerTableSource("OrcTable", orc);

	String query =
		"SELECT COUNT(*), " +
			"MIN(_col0), MAX(_col0), " +
			"MIN(_col1), MAX(_col1), " +
			"MIN(_col2), MAX(_col2), " +
			"MIN(_col3), MAX(_col3), " +
			"MIN(_col4), MAX(_col4), " +
			"MIN(_col5), MAX(_col5), " +
			"MIN(_col6), MAX(_col6), " +
			"MIN(_col7), MAX(_col7), " +
			"MIN(_col8), MAX(_col8) " +
		"FROM OrcTable";
	Table t = tEnv.sqlQuery(query);

	DataSet<Row> dataSet = tEnv.toDataSet(t, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(1, result.size());
	assertEquals(
		"1920800,1,1920800,F,M,D,W,2 yr Degree,Unknown,500,10000,Good,Unknown,0,6,0,6,0,6",
		result.get(0).toString());
}

Example 14

Source File: OrcTableSourceITCase.java From flink with Apache License 2.0

5 votes

@Test
public void testScanWithProjectionAndFilter() throws Exception {

	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tEnv = BatchTableEnvironment.create(env);

	OrcTableSource orc = OrcTableSource.builder()
		.path(getPath(TEST_FILE_FLAT))
		.forOrcSchema(TEST_SCHEMA_FLAT)
		.build();
	tEnv.registerTableSource("OrcTable", orc);

	String query =
		"SELECT " +
			"MIN(_col4), MAX(_col4), " +
			"MIN(_col3), MAX(_col3), " +
			"MIN(_col0), MAX(_col0), " +
			"MIN(_col2), MAX(_col2), " +
			"COUNT(*) " +
			"FROM OrcTable " +
			"WHERE (_col0 BETWEEN 4975 and 5024 OR _col0 BETWEEN 9975 AND 10024) AND _col1 = 'F'";
	Table t = tEnv.sqlQuery(query);

	DataSet<Row> dataSet = tEnv.toDataSet(t, Row.class);
	List<Row> result = dataSet.collect();

	assertEquals(1, result.size());
	assertEquals(
		"1500,6000,2 yr Degree,Unknown,4976,10024,D,W,50",
		result.get(0).toString());
}

Example 15

Source File: SpendReport.java From flink with Apache License 2.0

5 votes

public static void main(String[] args) throws Exception {
	ExecutionEnvironment env   = ExecutionEnvironment.getExecutionEnvironment();
	BatchTableEnvironment tEnv = BatchTableEnvironment.create(env);

	tEnv.registerTableSource("transactions", new BoundedTransactionTableSource());
	tEnv.registerTableSink("spend_report", new SpendReportTableSink());
	tEnv.registerFunction("truncateDateToHour", new TruncateDateToHour());

	tEnv
		.scan("transactions")
		.insertInto("spend_report");

	env.execute("Spend Report");
}