FileTextReader

A customized way to read Java/Kotlin text file with annotations in a simple and effective way

• Download https://github.com/AmadeAli1/FileTextReader/blob/master/FileTextReader.jar

• File Content (person.txt)

    firstname=Java|age=30|genre=Male|lastname=Kotlin
    firstname=John|lastname=Mclanne|age=12|genre=Male
  

• Example of a data class (model)

  @FileConfiguration(filename = "src\\person.txt", separator = "|")
  public class Person {
      @Field(min = 3)
      private String firstname;
  
    @Field(min = 2)
    private String lastname;
  
    @Field(type = DataType.BYTE)
    private Byte age;
  
    @Field(valid = {"Male", "Female"})
    private String genre;
  
    public Person(String firstname, String lastname, Byte age, String genre) {
        this.firstname = firstname;
        this.lastname = lastname;
        this.age = age;
        this.genre = genre;
    }
    
    //Required Empty Constructor
    public Person() {
    }
  
    @Override
    public String toString() {
        return new StringJoiner(", ", Person.class.getSimpleName() + "[", "]")
                .add("firstname='" + firstname + "'")
                .add("lastname='" + lastname + "'")
                .add("age=" + age)
                .add("genre='" + genre + "'")
                .toString();
    }
  
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof Person person)) return false;
  
        if (!Objects.equals(firstname, person.firstname)) return false;
        if (!Objects.equals(lastname, person.lastname)) return false;
        return Objects.equals(age, person.age);
    }
  
    @Override
    public int hashCode() {
        int result = firstname != null ? firstname.hashCode() : 0;
        result = 31 * result + (lastname != null ? lastname.hashCode() : 0);
        result = 31 * result + (age != null ? age.hashCode() : 0);
        return result;
    }
  }
  

• How to use

  public static void main(String [] args){
  
     FileTextReader<Pessoa> fileTextReader = new FileTextReaderImpl<>(Pessoa.class, new FileReaderListener<Pessoa>() {
            @Override
            public void onResult(Set<Pessoa> data) {
                System.out.printf("Called:: %s%n", Instant.now());
                data.forEach(System.out::println);
            }
        });
  
      fileTextReader.saveAll(new Person("Antony", "Tylor", (byte) 20, "Male"));
  }