How to get Selected Date with Current TimeStamp in Primefaces? - jsf

Question

I am selecting a date from a <p:calendar> component and I want to have the current time appended to the selected date.
Assume that now the time is 12/13/13 04:30:12 .
I had selected the date as 12/17/13 from the calendar and I want to save it as 12/17/13 04:30:12.

Answer 1

You can implement your custom #FacesConverter and apply it on the <p:calendar> component.
#FacesConverter("timestampConverter")
public class TimestampConverter implements Converter {
#Override
public Object getAsObject(FacesContext facesContext,
UIComponent uIComponent,
String string) {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yy");
Date date = null;
Calendar calendar = Calendar.getInstance();
try {
date = sdf.parse(string);
calendar.setTime(date);
} catch (ParseException e) {
e.printStackTrace();
}
Calendar now = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, now.get(Calendar.HOUR_OF_DAY));
calendar.set(Calendar.MINUTE, now.get(Calendar.MINUTE));
calendar.set(Calendar.SECOND, now.get(Calendar.SECOND));
Timestamp result = new Timestamp(calendar.getTime().getTime());
return result;
}
#Override
public String getAsString(FacesContext facesContext,
UIComponent uIComponent,
Object object) {
if (object == null) {
return null;
}
return object.toString();
}
}
In the getAsObject(..) method you can get the String that's received from the front-end, append the current time and construct a Timestamp object as a result.
The snippet from the facelet (plus my testing button) looks like this:
<h:form>
<p:calendar value="#{myBean.date}" >
<f:converter converterId="timestampConverter" />
</p:calendar>
<p:commandButton title="Test" action="#{myBean.testAction}" />
<h:form>
and in the myBean class there should be a date property with the corresponding accessor methods.
#RequestScoped
#ManagedBean(name = "myBean")
public class MyBean {
private Date date;
public Date getDate() {
return date;
}
public void setDate(Date date) {
return date;
}
public String testAction() {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/YY HH:mm:ss");
String output = sdf.format(date);
System.out.println("Selected date with timestamp: " + output);
}
}
More info:
JSF Custom Converter