package com.tutorialspoint;

import java.io.IOException;

import java.util.List;

import javax.servlet.http.HttpServletResponse;

import javax.ws.rs.Consumes;

import javax.ws.rs.DELETE;

import javax.ws.rs.FormParam;

import javax.ws.rs.GET;

import javax.ws.rs.OPTIONS;

import javax.ws.rs.POST;

import javax.ws.rs.PUT;

import javax.ws.rs.Path;

import javax.ws.rs.PathParam;

import javax.ws.rs.Produces;

import javax.ws.rs.core.Context;

import javax.ws.rs.core.MediaType;

@Path("/UserService")

public class UserService {

UserDao userDao = new UserDao();

private static final String SUCCESS_RESULT="<result>success</result>";

private static final String FAILURE_RESULT="<result>failure</result>";

@GET

@Path("/users")

@Produces(MediaType.APPLICATION_XML)

public List<User> getUsers(){

return userDao.getAllUsers();

}

@GET

@Path("/users/{userid}")

@Produces(MediaType.APPLICATION_XML)

public User getUser(@PathParam("userid") int userid){

return userDao.getUser(userid);

}

@POST

@Path("/users")

@Produces(MediaType.APPLICATION_XML)

@Consumes(MediaType.APPLICATION_FORM_URLENCODED)

public String createUser(@FormParam("id") int id,

@FormParam("name") String name,

@FormParam("profession") String profession,

@Context HttpServletResponse servletResponse) throws IOException{

User user = new User(id, name, profession);

int result = userDao.addUser(user);

if(result == 1){

return SUCCESS_RESULT;

}

return FAILURE_RESULT;

}

@PUT

@Path("/users")

@Produces(MediaType.APPLICATION_XML)

@Consumes(MediaType.APPLICATION_FORM_URLENCODED)

public String updateUser(@FormParam("id") int id,

@FormParam("name") String name,

@FormParam("profession") String profession,

@Context HttpServletResponse servletResponse) throws IOException{

User user = new User(id, name, profession);

int result = userDao.updateUser(user);

if(result == 1){

return SUCCESS_RESULT;

}

return FAILURE_RESULT;

}

@DELETE

@Path("/users/{userid}")

@Produces(MediaType.APPLICATION_XML)

public String deleteUser(@PathParam("userid") int userid){

int result = userDao.deleteUser(userid);

if(result == 1){

return SUCCESS_RESULT;

}

return FAILURE_RESULT;

}

@OPTIONS

@Path("/users")

@Produces(MediaType.APPLICATION_XML)

public String getSupportedOperations(){

return "<operations>GET, PUT, POST, DELETE</operations>";

}

}