GreetController.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.spring.quickstarts.greeter.greeter_spring.web;

import org.jboss.spring.quickstarts.greeter.greeter_spring.domain.User;
import org.jboss.spring.quickstarts.greeter.greeter_spring.domain.UserDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
@RequestMapping("greet")
public class GreetController {

    @Autowired
    private UserDao userDao;

    @RequestMapping(method = RequestMethod.GET)
    public @ModelAttribute("message")
    String getInitialMessage() {
        return "Enter a valid name";
    }

    @RequestMapping(method = RequestMethod.POST)
    public @ModelAttribute("message")
    String getGreeting(@RequestParam("username") String username) {
        User user = userDao.getForUsername(username);
        if (user != null) {
            return "Hello, " + user.getFirstName() + " " + user.getLastName() + "!";
        } else {
            return "No such user exists! Use 'emuster' or 'jdoe'";
        }
    }
}