package org.bigk.invoices.services;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.bigk.invoices.exceptions.ServiceException;
import org.bigk.invoices.model.PaymentKind;
import org.bigk.invoices.utils.HibernateUtils;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Session;
public class PaymentKindsServiceImpl implements PaymentKindsService {
/**
* Logger for this class
*/
private static final Log logger =
LogFactory.getLog(PaymentKindsServiceImpl.class);
public PaymentKindsServiceImpl() {
}
@SuppressWarnings("unchecked")
public List<PaymentKind> listAllItems() throws ServiceException {
if (logger.isDebugEnabled()) {
logger.debug("listAllItems() - start");
}
List<PaymentKind> list = null;
Session session = null;
try {
session = HibernateUtils.getCurrentSession();
Criteria crit = session.createCriteria(PaymentKind.class);
list = crit.list();
} catch (HibernateException ex) {
logger.error("listAllItems()", ex);
throw new ServiceException(ex);
}
if (logger.isDebugEnabled()) {
logger.debug("listAllItems() - end - return value=" + CollectionUtils.size(list));
}
return list;
}
public PaymentKind getPaymentKind(Long id) throws ServiceException {
if (logger.isDebugEnabled()) {
logger.debug("getPaymentKind(Long id=" + id + ") - start");
}
PaymentKind object = null;
Session session = null;
try {
session = HibernateUtils.getCurrentSession();
object = (PaymentKind) session.get(PaymentKind.class, id);
} catch (HibernateException ex) {
logger.error("getObject4Id(Long)", ex);
throw new ServiceException(ex);
}
if (logger.isDebugEnabled()) {
logger.debug("getPaymentKind(Long) - end - return value=" + object);
}
return object;
}
public Date calculatePaymentDate(Date soldDate, Long paymentKindId)
throws ServiceException {
if (logger.isDebugEnabled()) {
logger.debug("calculatePaymentDate(Date soldDate=" + soldDate
+ ", Long paymentKindId=" + paymentKindId + ") - start");
}
PaymentKind paymentKind = this.getPaymentKind(paymentKindId);
if (paymentKind == null) {
throw new ServiceException("No PaymentKind read for id: " + paymentKindId);
}
Date returnDate = calculatePaymentDate(soldDate, paymentKind.getValue());
if (logger.isDebugEnabled()) {
logger.debug("calculatePaymentDate(Date, Long) - end - return value=" + returnDate);
}
return returnDate;
}
public Date calculatePaymentDate(Date soldDate, String paymentKindValue)
throws ServiceException {
if (logger.isDebugEnabled()) {
logger.debug("calculatePaymentDate(Date soldDate=" + soldDate
+ ", String paymentKindValue=" + paymentKindValue
+ ") - start");
}
Calendar cal = Calendar.getInstance();
cal.setTime(soldDate);
String formule = paymentKindValue;
if (StringUtils.isNotBlank(formule)) {
formule = StringUtils.lowerCase(formule);
// detect 'period': one of 'd' (day) or 'm' (month)
String period = null;
if (formule.startsWith("d")) {
period = "d";
formule = formule.substring(1);
} else if (formule.startsWith("m")) {
period = "m";
formule = formule.substring(1);
}
// detect 'sign': one of '+' or '-'
int sign = 1;
if (formule.startsWith("+"))
formule = formule.substring(1);
else if (formule.startsWith("-")) {
sign = -1;
formule = formule.substring(1);
}
if (logger.isDebugEnabled()) {
logger.debug("calculatePaymentDate(Date, String) - formule="
+ formule + ", period=" + period + ", sign=" + sign);
}
if ("d".equals(period)) {
int days = sign * NumberUtils.toInt(formule, 0);
cal.add(5, days);
} else if ("m".equals(period)) {
int months = sign * NumberUtils.toInt(formule, 0);
cal.add(2, months);
}
}
Date returnDate = cal.getTime();
if (logger.isDebugEnabled()) {
logger.debug("calculatePaymentDate(Date, String) - end - return value=" + returnDate);
}
return returnDate;
}
public static void main(String args[]) throws ServiceException {
PaymentKindsServiceImpl service = new PaymentKindsServiceImpl();
Calendar cal = Calendar.getInstance();
Date date1 = cal.getTime();
Date date2 = service.calculatePaymentDate(date1, Long.valueOf(4L));
System.out.println(date1);
System.out.println(date2);
}
}