Examples with ConnectionSettings com.google.cloud.bigquery.ConnectionSettings used on opensource projects

Example 6 with ConnectionSettings

use of com.google.cloud.bigquery.ConnectionSettings in project java-bigquery by googleapis.

the class ITBigQueryTest method testBQResultSetPagination.

@Test
public void testBQResultSetPagination() throws SQLException {
    String query = "SELECT date, county, state_name, confirmed_cases, deaths FROM " + TABLE_ID_LARGE.getTable() + " where date is not null and county is not null and state_name is not null order by date limit 300000";
    ConnectionSettings connectionSettings = ConnectionSettings.newBuilder().setDefaultDataset(DatasetId.of(DATASET)).setNumBufferedRows(// page size
    10000).build();
    Connection connection = bigquery.createConnection(connectionSettings);
    BigQueryResult bigQueryResult = connection.executeSelect(query);
    ResultSet rs = bigQueryResult.getResultSet();
    int cnt = 0;
    while (rs.next()) {
        // pagination starts after approx 120,000 records
        assertNotNull(rs.getDate(0));
        assertNotNull(rs.getString(1));
        assertNotNull(rs.getString(2));
        assertTrue(rs.getInt(3) >= 0);
        assertTrue(rs.getInt(4) >= 0);
        ++cnt;
    }
    // total 300000 rows should be read
    assertEquals(300000, cnt);
}

Example 7 with ConnectionSettings

use of com.google.cloud.bigquery.ConnectionSettings in project java-bigquery by googleapis.

the class ITBigQueryTest method testBQResultSetMultiThreadedOrder.

@Test
public // to the multithreaded BigQueryResult implementation
void testBQResultSetMultiThreadedOrder() throws SQLException {
    String query = "SELECT date FROM " + TABLE_ID_LARGE.getTable() + " where date is not null order by date asc limit 300000";
    ConnectionSettings connectionSettings = ConnectionSettings.newBuilder().setDefaultDataset(DatasetId.of(DATASET)).setNumBufferedRows(// page size
    10000).build();
    Connection connection = bigquery.createConnection(connectionSettings);
    BigQueryResult bigQueryResult = connection.executeSelect(query);
    ResultSet rs = bigQueryResult.getResultSet();
    int cnt = 0;
    assertTrue(rs.next());
    ++cnt;
    java.sql.Date lastDate = rs.getDate(0);
    while (rs.next()) {
        assertNotNull(rs.getDate(0));
        // sorted order is maintained
        assertTrue(rs.getDate(0).getTime() >= lastDate.getTime());
        lastDate = rs.getDate(0);
        ++cnt;
    }
    // total 300000 rows should be read
    assertEquals(300000, cnt);
}

Example 8 with ConnectionSettings

use of com.google.cloud.bigquery.ConnectionSettings in project java-bigquery by googleapis.

the class ITBigQueryTest method testBQResultSetPaginationSlowQuery.

@Test
public void testBQResultSetPaginationSlowQuery() throws SQLException {
    String query = "SELECT date, county, state_name, confirmed_cases, deaths FROM " + TABLE_ID_LARGE.getTable() + " where date is not null and county is not null and state_name is not null order by date limit 300000";
    ConnectionSettings connectionSettings = ConnectionSettings.newBuilder().setDefaultDataset(DatasetId.of(DATASET)).setNumBufferedRows(// page size
    10000).setJobTimeoutMs(// So that ConnectionImpl.isFastQuerySupported returns false, and the slow
    15000L).build();
    Connection connection = bigquery.createConnection(connectionSettings);
    BigQueryResult bigQueryResult = connection.executeSelect(query);
    ResultSet rs = bigQueryResult.getResultSet();
    int cnt = 0;
    while (rs.next()) {
        // pagination starts after approx 120,000 records
        assertNotNull(rs.getDate(0));
        assertNotNull(rs.getString(1));
        assertNotNull(rs.getString(2));
        assertTrue(rs.getInt(3) >= 0);
        assertTrue(rs.getInt(4) >= 0);
        ++cnt;
    }
    // total 300000 rows should be read
    assertEquals(300000, cnt);
}

Example 9 with ConnectionSettings

use of com.google.cloud.bigquery.ConnectionSettings in project java-bigquery by googleapis.

the class ITBigQueryTest method testConnectionImplDryRun.

@Test
public void testConnectionImplDryRun() throws SQLException {
    String query = String.format("select StringField,  BigNumericField, BooleanField, BytesField, IntegerField, TimestampField, FloatField, NumericField, TimeField, DateField,  DateTimeField , GeographyField, RecordField.BytesField, RecordField.BooleanField, IntegerArrayField from %s where StringField = ? order by TimestampField", TABLE_ID_FASTQUERY_BQ_RESULTSET.getTable());
    ConnectionSettings connectionSettings = ConnectionSettings.newBuilder().setDefaultDataset(DatasetId.of(DATASET)).setCreateSession(true).build();
    Connection connection = bigquery.createConnection(connectionSettings);
    BigQueryDryRunResult bigQueryDryRunResultSet = connection.dryRun(query);
    assertNotNull(bigQueryDryRunResultSet.getSchema());
    assertEquals(BQ_RESULTSET_EXPECTED_SCHEMA, // match the schema
    bigQueryDryRunResultSet.getSchema());
    List<Parameter> queryParameters = bigQueryDryRunResultSet.getQueryParameters();
    assertEquals(StandardSQLTypeName.STRING, queryParameters.get(0).getValue().getType());
    QueryStatistics queryStatistics = bigQueryDryRunResultSet.getStatistics().getQueryStatistics();
    assertNotNull(queryStatistics);
    SessionInfo sessionInfo = bigQueryDryRunResultSet.getStatistics().getSessionInfo();
    assertNotNull(sessionInfo.getSessionId());
    assertEquals(StatementType.SELECT, queryStatistics.getStatementType());
}

Example 10 with ConnectionSettings

use of com.google.cloud.bigquery.ConnectionSettings in project java-bigquery by googleapis.

the class ITBigQueryTest method testReadAPIConnectionMultiClose.

@Test
public void testReadAPIConnectionMultiClose() throws SQLException {
    // use read API to read 300K records, then closes the connection. This test
    // repeats it multiple times and assets if the connection was closed
    String query = "SELECT date, county, state_name, confirmed_cases, deaths FROM " + TABLE_ID_LARGE.getTable() + " where date is not null and county is not null and state_name is not null order by confirmed_cases asc limit 300000";
    ConnectionSettings connectionSettings = ConnectionSettings.newBuilder().setDefaultDataset(DatasetId.of(DATASET)).setPriority(QueryJobConfiguration.Priority.INTERACTIVE).build();
    int closeCnt = 0, runCnt = 3;
    for (int run = 0; run < runCnt; run++) {
        Connection connection = bigquery.createConnection(connectionSettings);
        BigQueryResult bigQueryResult = connection.executeSelect(query);
        ResultSet rs = bigQueryResult.getResultSet();
        int cnt = 0;
        while (rs.next()) {
            // pagination starts after approx 120,000 records
            assertNotNull(rs.getDate(0));
            ++cnt;
        }
        // total 300000 rows should be read
        assertEquals(300000, cnt);
        // check if connection closed
        assertTrue(connection.close());
        closeCnt++;
    }
    assertEquals(closeCnt, // check if the connection closed for the required number of times
    runCnt);
}