br.com.jarch.faces.converter.LocalDateTimeJsfConverter Maven / Gradle / Ivy

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package br.com.jarch.faces.converter;

import org.primefaces.component.calendar.Calendar;
import org.primefaces.component.datepicker.DatePicker;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;

import static java.time.format.DateTimeFormatter.ofPattern;

@FacesConverter("br.com.jarch.faces.converter.localDateTimeConverter")
public class LocalDateTimeJsfConverter implements Serializable, Converter {

    private static final long serialVersionUID = -482895881944630237L;

    @Override
    public LocalDateTime getAsObject(FacesContext arg0, UIComponent arg1, String value) {

        if (value == null) {
            return null;
        }

        try {
            return LocalDateTime.parse(value, DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss"));
        } catch (Exception ex) {
            try {
                return LocalDateTime.parse(value, DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm"));
            } catch (Exception ex2) {
                LocalDate localDate = LocalDate.parse(value, DateTimeFormatter.ofPattern("dd/MM/yyyy"));
                LocalTime localTime = LocalTime.now().withHour(0).withMinute(0).withSecond(0).withNano(0);
                return LocalDateTime.of(localDate, localTime);
            }
        }
    }


    @Override
    public String getAsString(FacesContext facesContext, UIComponent uiComponent, Object value) {

        if (value == null) {
            return null;
        }

        String pattern = "";

        if (Calendar.class.isAssignableFrom(uiComponent.getClass()))
            pattern = ((Calendar)uiComponent).getPattern();

        if (DatePicker.class.isAssignableFrom(uiComponent.getClass()))
            pattern = ((DatePicker)uiComponent).getPattern();

        if (pattern == null || pattern.isBlank())
            pattern = "dd/MM/yyyy HH:mm:ss";

        if (value instanceof Date) {
            return new SimpleDateFormat(pattern).format(value);
        }

        LocalDateTime dateValue = (LocalDateTime) value;
        return dateValue.format(ofPattern(pattern));
    }
}