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How to simplify my java

I am writing java code in Spring Framework.

I have two beans, human and human1. They have a slightly different structure, that is, the variable names for each of them are slightly different.

I am trying to copy data from one bean to another. I only want to copy the value if the value is not equal to zero. I have seen an API called BeanUtils, but this will copy it whether it is null or not.

Here is my code:

if (person != null) {
       if (person.getAddressDetails() != null) {
               if (person.getAddressDetails().getStreetNumber() != null) {
                       person1.getAddressDetails().setStreetNo(person.getAddressDetails().getStreetNumber());
               }

               if (person.getAddressDetails().getStreetName() != null) {
                       person1.getAddressDetails().setStreetName(person.getAddressDetails().getStreetName());
               }
       }

       if (person.getHomeDetails() != null) {
               if (person.getHomeDetails().getPhoneNumber() != null) {
                       person1.getHomeDetails().setSPhoneNo(person.getHomeDetails().getPhoneNumber());
               }
       }
}

I have about 40 nodes that need to be copied and this will create such ugly code. Anyone have a better way to do this? maybe if I do a mapping or something else and then go through it? not sure.

If not, does anyone know if I can get BeanUtils to run a copy without copying the null values?

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+3
2

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null checking setXXX() , -, , null.

public setXXX(final String s)
{
  if (s == null) { // do nothing }
  else { this.xxx = s; }
}

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+5

, Dozer .

+2

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