Package de.bcxp.challenge.weather

Class WeatherCsvParser

java.lang.Object

de.bcxp.challenge.common.documentParsing.csv.CsvParser

de.bcxp.challenge.weather.WeatherCsvParser

All Implemented Interfaces:

IDocumentParser

public class WeatherCsvParser
extends CsvParser

A CSV parser specifically for weather data entries.

WeatherCsvParser extends CsvParser to parse CSV files containing daily weather information. Each record is expected to contain fields such as day, maximum temperature, and minimum temperature, which are mapped to WeatherEntry objects.

This parser assumes that the CSV file includes a header row.

See Also:

• WeatherEntry
• CsvParser

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.apache.logging.log4j.Logger	logger
private static final String	MAX_TEMP
private static final String	MIN_TEMP
private static final String	NAME

Constructor Summary

Constructors

Constructor	Description
WeatherCsvParser(char delimiter, Locale locale)	Constructs a WeatherCsvParser with the specified CSV delimiter.

Method Summary

Modifier and Type	Method	Description
protected List<DocumentEntry>	getEntriesFromRecords(Iterable<org.apache.commons.csv.CSVRecord> records)	Converts a collection of CSV records into a list of DocumentEntry objects, specifically WeatherEntry instances.

Methods inherited from class de.bcxp.challenge.common.documentParsing.csv.CsvParser

getDelimiter, getLocale, parseDocument

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

logger

private static final org.apache.logging.log4j.Logger logger

NAME

private static final String NAME

See Also:

• Constant Field Values

MAX_TEMP

private static final String MAX_TEMP

See Also:

• Constant Field Values

MIN_TEMP

private static final String MIN_TEMP

See Also:

• Constant Field Values

Constructor Details

WeatherCsvParser

public WeatherCsvParser(char delimiter,
 Locale locale)

Constructs a WeatherCsvParser with the specified CSV delimiter.

Parameters:

delimiter - the character used to separate values in the CSV file.

locale - Locale used when parsing number

Method Details

getEntriesFromRecords

protected List<DocumentEntry> getEntriesFromRecords(Iterable<org.apache.commons.csv.CSVRecord> records)
                                             throws NumberFormatException,
ParseException

Converts a collection of CSV records into a list of DocumentEntry objects, specifically WeatherEntry instances. Each record is expected to contain weather-related data such as the name, maximum temperature, and minimum temperature.

Specified by:

getEntriesFromRecords in class CsvParser

Parameters:

records - an Iterable of CSVRecord objects containing weather data. Each record must provide values for NAME, MAX_TEMP, and MIN_TEMP.

Returns:

a List of DocumentEntry objects, where each entry corresponds to a parsed WeatherEntry from the CSV records.

Throws:

NumberFormatException - if temperature values cannot be parsed as doubles.

ParseException - if a parsing error occurs during number conversion (e.g., due to locale-specific formatting issues).