public void openInputFormat()

in flink-connector-jdbc-core/src/main/java/org/apache/flink/connector/jdbc/JdbcInputFormat.java [143:164]

• 17 lines of code
• 6 McCabe index (conditional complexity)

    public void openInputFormat() {
        // called once per inputFormat (on open)
        try {
            Connection dbConn = connectionProvider.getOrEstablishConnection();

            // set autoCommit mode only if it was explicitly configured.
            // keep connection default otherwise.
            if (autoCommit != null) {
                dbConn.setAutoCommit(autoCommit);
            }

            statement = dbConn.prepareStatement(queryTemplate, resultSetType, resultSetConcurrency);
            if (fetchSize == Integer.MIN_VALUE || fetchSize > 0) {
                statement.setFetchSize(fetchSize);
            }
        } catch (SQLException se) {
            throw new IllegalArgumentException("open() failed." + se.getMessage(), se);
        } catch (ClassNotFoundException cnfe) {
            throw new IllegalArgumentException(
                    "JDBC-Class not found. - " + cnfe.getMessage(), cnfe);
        }
    }