/* 
 * COPYRIGHT (C) AEGIS DATA SOLUTIONS, LLC, 2015
 */
package com.aegisql.conveyor.demo.simple_builder;

import java.util.Date;

public class Person {
	
	final String firstName;
	final String lastName;
	final Date dateOfBirth;
	
	public Person(String firstName, String lastName, Date dateOfBirth) {
		this.firstName   = firstName;
		this.lastName    = lastName;
		this.dateOfBirth = dateOfBirth;
	}

	public String getFirstName() {
		return firstName;
	}

	public String getLastName() {
		return lastName;
	}
	
	public Date getDateOfBirth() {
		return dateOfBirth;
	}

	@Override
	public String toString() {
		return "Person [firstName=" + firstName + ", lastName=" + lastName + ", dateOfBirth=" + dateOfBirth + "]";
	}
}

/* 
 * COPYRIGHT (C) AEGIS DATA SOLUTIONS, LLC, 2015
 */
package com.aegisql.conveyor.demo.simple_builder_asynch;

import java.util.Date;
import java.util.function.Supplier;

public class PersonBuilder implements Supplier<Person> {
	
	private String firstName;
	private String lastName;
	private Date dateOfBirth;
	
	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public void setLastName(String lastName) {
		this.lastName = lastName;
	}

	public void setDateOfBirth(Date dateOfBirth) {
		this.dateOfBirth = dateOfBirth;
	}

	@Override
	public Person get() {
		return new Person(firstName,lastName,dateOfBirth);
	}
}

ThreadPool pool         = new ThreadPool();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
PersonBuilder builder   = new PersonBuilder();
// << Builder is created, but it is empty. 
//    Needs three pieces of data to build the person
//    Adding building parts asynchronously in three separate threads
Future<?> f1 = pool.runAsynchWithDelay(10,()->{
	builder.setFirstName("John");
	}
);
Future<?> f2 = pool.runAsynchWithDelay(100,()->{
	builder.setLastName("Silver");
	}
);
Future<?> f3 = pool.runAsynchWithDelay(1000,()->{
	try {
		builder.setDateOfBirth( format.parse("1695-11-10") );
	} catch (Exception e) {}
	}
);
// Most likely not ready
Person person = builder.get();
System.out.println( "0\t"+ person );
f1.get();
// not ready
person = builder.get();
System.out.println( "10\t"+ person );
f2.get();
// still not ready
person = builder.get();
System.out.println( "100\t"+ person );
f3.get();
// Hopefully ready now
person = builder.get();
System.out.println( "1000\t"+ person );
pool.shutdown();