Examples with CSVCommonsLoader org.apache.phoenix.util.CSVCommonsLoader used on opensource projects

Example 16 with CSVCommonsLoader

use of org.apache.phoenix.util.CSVCommonsLoader in project phoenix by apache.

the class CSVCommonsLoaderIT method testCSVUpsertWithCustomDelimiters.

@Test
public void testCSVUpsertWithCustomDelimiters() throws Exception {
    CSVParser parser = null;
    PhoenixConnection conn = null;
    try {
        String stockTableName = generateUniqueName();
        // Create table
        String statements = "CREATE TABLE IF NOT EXISTS " + stockTableName + "(SYMBOL VARCHAR NOT NULL PRIMARY KEY, COMPANY VARCHAR);";
        conn = DriverManager.getConnection(getUrl()).unwrap(PhoenixConnection.class);
        PhoenixRuntime.executeStatements(conn, new StringReader(statements), null);
        // Upsert CSV file
        CSVCommonsLoader csvUtil = new CSVCommonsLoader(conn, stockTableName, Arrays.<String>asList(STOCK_COLUMNS), true, '1', '2', '3', CSVCommonsLoader.DEFAULT_ARRAY_ELEMENT_SEPARATOR);
        csvUtil.upsert(new StringReader(STOCK_CSV_VALUES_WITH_DELIMITER));
        // Compare Phoenix ResultSet with CSV file content
        PreparedStatement statement = conn.prepareStatement("SELECT SYMBOL, COMPANY FROM " + stockTableName);
        ResultSet phoenixResultSet = statement.executeQuery();
        parser = new CSVParser(new StringReader(STOCK_CSV_VALUES_WITH_DELIMITER), csvUtil.getFormat());
        for (CSVRecord record : parser) {
            assertTrue(phoenixResultSet.next());
            int i = 0;
            for (String value : record) {
                assertEquals(value, phoenixResultSet.getString(i + 1));
                i++;
            }
        }
        assertFalse(phoenixResultSet.next());
    } finally {
        if (parser != null)
            parser.close();
        if (conn != null)
            conn.close();
    }
}