Java 8 Stream String Null Or Empty Filter

Question

I\'ve got Google Guava inside Stream:

this.map.entrySet().stream()
.filter(entity -> !Strings.isNullOrEmpty(entity.getValue()))
.map(obj -> String.form         


        

Answer 1

You can write your own predicate:

final Predicate> valueNotNullOrEmpty
    = e -> e.getValue() != null && !e.getValue().isEmpty();

Then just use valueNotNullOrEmpty as your filter argument.