I am using Orika Mapper for mapping my fields of source and destination class.
I can do one-to-one mapping perfectly.
I have two fields like dateOfDeparture and dateOfArrival in Source class.
I have to calculate difference between these dates and map to a field "travelDuration" in destination class.
Following is the mapper class.
package com.tcs.Orika;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import ma.glasnost.orika.MapperFacade;
import ma.glasnost.orika.MapperFactory;
import ma.glasnost.orika.converter.ConverterFactory;
import ma.glasnost.orika.impl.ConfigurableMapper;
import ma.glasnost.orika.impl.DefaultMapperFactory;
public class Mapper extends ConfigurableMapper {
public static void main(String[] args) throws ParseException {
/*Date Calculation*/
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-M-yyyy hh:mm:ss");
String dateOfDeparture = "31-08-1982 10:20:56";
String dateOfArrival = "31-08-1983 10:20:56";
Date date1 = dateFormat.parse(dateOfDeparture);
Date date2 = dateFormat.parse(dateOfArrival);
long diff = date2.getTime() - date1.getTime();
int noOfDays = (int) TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS);
/*set values to Source object*/
OrikaMapFrom objectMapFrom = new OrikaMapFrom();
OrikaMapTo objectMapTo = new OrikaMapTo();
objectMapFrom.setSource("Delhi");
objectMapFrom.setDestination("Amsterdam");
objectMapFrom.setDateOfDeparture(date1);
objectMapFrom.setDateOfArrival(date2);
/*Name Mapping when source and destination names are different*/
MapperFactory mapperFactory = new DefaultMapperFactory.Builder().build();
mapperFactory.classMap(OrikaMapFrom.class, OrikaMapTo.class)
.field("source", "sourcePlace")
.field("destination","destinationPlace")
.field(noOfDays,"travelDuration")--------------->facing error on this line
.register();
/*Value Mapping*/
MapperFacade mapper = mapperFactory.getMapperFacade();
objectMapTo = mapper.map(objectMapFrom, OrikaMapTo.class);
objectMapTo.setTravelDuration(noOfDays);
System.out.println(objectMapTo.getSourcePlace());
System.out.println(objectMapTo.getDestinationPlace());
System.exit(0);
}
}
please Advice how to map (noOfDays,"travelDuration").
Answer
Here is the way for your case:
public class Mapper {
public static void main(String[] args) throws ParseException {
/*Date Calculation*/
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-M-yyyy hh:mm:ss");
String dateOfDeparture = "31-08-1982 10:20:56";
String dateOfArrival = "31-08-1983 10:20:56";
Date date1 = dateFormat.parse(dateOfDeparture);
Date date2 = dateFormat.parse(dateOfArrival);
/*set values to Source object*/
OrikaMapFrom objectMapFrom = new OrikaMapFrom();
OrikaMapTo objectMapTo = new OrikaMapTo();
objectMapFrom.setSource("Delhi");
objectMapFrom.setDestination("Amsterdam");
objectMapFrom.setDateOfDeparture(date1);
objectMapFrom.setDateOfArrival(date2);
/*Name Mapping when source and destination names are different*/
MapperFactory mapperFactory = new DefaultMapperFactory.Builder().build();
mapperFactory.classMap(OrikaMapFrom.class, OrikaMapTo.class)
.field("source", "sourcePlace")
.field("destination","destinationPlace")
.customize(new CustomMapper<OrikaMapFrom,OrikaMapTo>() {
@Override
public void mapAtoB(OrikaMapFrom a, OrikaMapTo b, MappingContext mappingContext) {
long diff = a.getDateOfArrival().getTime() - a.getDateOfDeparture().getTime();
b.setTravelDuration((int)TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS));
}
})
//.field(noOfDays,"travelDuration")--------------->facing error on this line
.register();
/*Value Mapping*/
MapperFacade mapper = mapperFactory.getMapperFacade();
objectMapTo = mapper.map(objectMapFrom, OrikaMapTo.class);
objectMapTo.setTravelDuration(noOfDays);
System.out.println(objectMapTo.getSourcePlace());
System.out.println(objectMapTo.getDestinationPlace());
System.exit(0);
}
}
Hope this can help.