package hello;

import java.util.concurrent.atomic.AtomicLong;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("/hello-world")
public class HelloWorldController {

	private static final String template = "Hello, %s!";
	private final AtomicLong counter = new AtomicLong();
	
    @RequestMapping(method=RequestMethod.GET)
    public @ResponseBody Greeting sayHello(
            @RequestParam(value="name", required=false, defaultValue="World") String name) {
        return new Greeting(counter.incrementAndGet(), String.format(template, name));
    }

}