olg.csv.bean.annotations.processor
Class ParserProcessor

java.lang.Object
  olg.csv.bean.annotations.processor.ParserProcessor

public final class ParserProcessor
extends Object

This class is responsible for processing the @Parser annotation.

Field Summary

private static ParserProcessor	instance The Singleton instance.
private static org.slf4j.Logger	LOGGER The class logger.

Constructor Summary

private

ParserProcessor() Private constructor to ensure the existence of singleton.

Method Summary

private <T> AbstractParser<T>	getCustomParser(Field field, Parser parserAnnotation, Class<T> fieldConcreteClass) Returns a parser identified from the parser annotation setted on a field as a custom parser.
private <T> AbstractParser<Date>	getDateParser(Field field, Parser parserAnnotation, Class<T> fieldConcreteClass) Returns a date parser identified from the parser annotation setted on a field.
static ParserProcessor	getInstance() The singleton instance.
<T> AbstractParser<T>	getParser(Field field, Class<T> fieldConcreteClass) Return the parser to use on a field.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

The class logger.

instance

private static ParserProcessor instance

The Singleton instance.

Constructor Detail

ParserProcessor

private ParserProcessor()

Private constructor to ensure the existence of singleton.

Method Detail

getInstance

public static ParserProcessor getInstance()

The singleton instance.

Returns:

the singleton instance

getParser

public <T> AbstractParser<T> getParser(Field field,
                                       Class<T> fieldConcreteClass)
                            throws AnnotationProcessorException

Return the parser to use on a field. If no parser annotation is setted on the field, try to identify a default parser from the concrete class.

Type Parameters:

T - the type the parser must return

Parameters:

field - the field

fieldConcreteClass - the concrete class from which instanciate the field values.

Returns:

the parser

Throws:

AnnotationProcessorException - if an error occurs during annotation reading or if no parser has been found.

See Also:

AbstractParser.identifyDefaultParser(Class)

getDateParser

private <T> AbstractParser<Date> getDateParser(Field field,
                                               Parser parserAnnotation,
                                               Class<T> fieldConcreteClass)
                                    throws AnnotationProcessorException

Returns a date parser identified from the parser annotation setted on a field.

Type Parameters:

T - the type the parser must return

Parameters:

field - the field.

parserAnnotation - the annotation setted on the field

fieldConcreteClass - the concrete class from which instanciate the field values.

Returns:

the date parser

Throws:

AnnotationProcessorException - if an error occurs

getCustomParser

private <T> AbstractParser<T> getCustomParser(Field field,
                                              Parser parserAnnotation,
                                              Class<T> fieldConcreteClass)
                                   throws AnnotationProcessorException

Returns a parser identified from the parser annotation setted on a field as a custom parser.

Type Parameters:

T - the type the parser must return

Parameters:

field - the field

parserAnnotation - the annotation setted on the field.

fieldConcreteClass - the concrete class from which instanciate the field values.

Returns:

the parser

Throws:

AnnotationProcessorException - if an error occurs