Examples with CSVParser org.apache.commons.csv.CSVParser used on opensource projects

Example 11 with CSVParser

use of org.apache.commons.csv.CSVParser in project phoenix by apache.

the class CSVCommonsLoaderIT method testCSVUpsertWithInvalidNumericalData_StrictMode.

// Ensure that strict mode also causes the import to stop if a data type on a single
// row is not correct
@Test
public void testCSVUpsertWithInvalidNumericalData_StrictMode() 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_ID BIGINT);";
        conn = DriverManager.getConnection(getUrl()).unwrap(PhoenixConnection.class);
        PhoenixRuntime.executeStatements(conn, new StringReader(statements), null);
        // Upsert CSV file in strict mode
        CSVCommonsLoader csvUtil = new CSVCommonsLoader(conn, stockTableName, Arrays.asList("SYMBOL", "COMPANY_ID"), true);
        try {
            csvUtil.upsert(new StringReader(STOCK_CSV_VALUES));
            fail("Running an upsert with data that can't be upserted in strict mode " + "should throw an exception");
        } catch (IllegalDataException e) {
        // Expected
        }
    } finally {
        if (parser != null)
            parser.close();
        if (conn != null)
            conn.close();
    }
}

Example 12 with CSVParser

use of org.apache.commons.csv.CSVParser in project phoenix by apache.

the class CSVCommonsLoaderIT method testCSVCommonsUpsert_WithArray.

@Test
public void testCSVCommonsUpsert_WithArray() throws Exception {
    CSVParser parser = null;
    PhoenixConnection conn = null;
    try {
        // Create table
        String statements = "CREATE TABLE IF NOT EXISTS ARRAY_TABLE " + "(ID BIGINT NOT NULL PRIMARY KEY, VALARRAY INTEGER ARRAY);";
        conn = DriverManager.getConnection(getUrl()).unwrap(PhoenixConnection.class);
        PhoenixRuntime.executeStatements(conn, new StringReader(statements), null);
        // Upsert CSV file
        CSVCommonsLoader csvUtil = new CSVCommonsLoader(conn, "ARRAY_TABLE", ImmutableList.<String>of(), true, ',', '"', null, "!");
        csvUtil.upsert(new StringReader("ID,VALARRAY\n" + "1,2!3!4\n"));
        // Compare Phoenix ResultSet with CSV file content
        PreparedStatement statement = conn.prepareStatement("SELECT ID, VALARRAY FROM ARRAY_TABLE");
        ResultSet phoenixResultSet = statement.executeQuery();
        assertTrue(phoenixResultSet.next());
        assertEquals(1L, phoenixResultSet.getLong(1));
        assertEquals(PArrayDataType.instantiatePhoenixArray(PInteger.INSTANCE, new Integer[] { 2, 3, 4 }), phoenixResultSet.getArray(2));
        assertFalse(phoenixResultSet.next());
    } finally {
        if (parser != null)
            parser.close();
        if (conn != null)
            conn.close();
    }
}

Example 13 with CSVParser

use of org.apache.commons.csv.CSVParser in project phoenix by apache.

the class CSVCommonsLoaderIT method testCSVUpsertWithBogusColumnStrict.

@Test
public void testCSVUpsertWithBogusColumnStrict() 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.asList(STOCK_COLUMNS_WITH_BOGUS), true);
        try {
            csvUtil.upsert(new StringReader(STOCK_CSV_VALUES));
            fail();
        } catch (SQLException e) {
            assertTrue(e.getMessage(), e.getMessage().contains("ERROR 504 (42703): Undefined column. columnName=" + stockTableName + ".BOGUS"));
        }
    } finally {
        if (parser != null)
            parser.close();
        if (conn != null)
            conn.close();
    }
}

Example 14 with CSVParser

use of org.apache.commons.csv.CSVParser in project phoenix by apache.

the class CSVCommonsLoaderIT method testCSVUpsertWithColumns.

@Test
public void testCSVUpsertWithColumns() 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);
        // no header
        csvUtil.upsert(new StringReader(STOCK_CSV_VALUES));
        // 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), 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();
    }
}

Example 15 with CSVParser

use of org.apache.commons.csv.CSVParser in project opennms by OpenNMS.

the class RScriptExecutor method fromCsv.

/**
 * Convert the CSV string to an immutable table.
 */
protected static ImmutableTable<Long, String, Double> fromCsv(final String csv) throws IOException {
    ImmutableTable.Builder<Long, String, Double> builder = ImmutableTable.builder();
    try (StringReader reader = new StringReader(csv);
        CSVParser parser = new CSVParser(reader, CSVFormat.RFC4180.withHeader())) {
        long rowIndex = 0;
        Map<String, Integer> headerMap = parser.getHeaderMap();
        for (CSVRecord record : parser) {
            for (String key : headerMap.keySet()) {
                Double value;
                try {
                    value = Double.valueOf(record.get(key));
                } catch (NumberFormatException e) {
                    value = Double.NaN;
                }
                builder.put(rowIndex, key, value);
            }
            rowIndex++;
        }
    }
    return builder.build();
}