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package com.sun.jersey.samples.contacts.server;
import com.sun.jersey.atom.abdera.ContentHelper;
import com.sun.jersey.samples.contacts.models.Contact;
import com.sun.jersey.samples.contacts.models.User;
import java.util.ArrayList;
import java.util.Date;
import java.util.UUID;
import javax.annotation.security.RolesAllowed;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
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;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import org.apache.abdera.model.Entry;
import org.apache.abdera.model.Feed;
/**
* <p>Resource to manage the set of valid users for the Contacts System.</p>
*/
@Path("users")
public class UsersResource extends BaseResource {
// ------------------------------------------------------------ Constructors
/**
* <p>Construct a configured instance of this resource class.</p>
*
* @param uriInfo Context URI information to be injected
* @param contentHelper ContentHelper instance to be injected
*/
public UsersResource(@Context UriInfo uriInfo,
@Context ContentHelper contentHelper) {
this.uriInfo = uriInfo;
this.contentHelper = contentHelper;
}
// ---------------------------------------------------------- Public Methods
/**
* <p>Return the set of valid users for this application.</p>
*
* <p>FIXME - support pagination and filtering query parameters.</p>
*/
@RolesAllowed("admin")
@GET
@Produces({"application/atom+xml",
"application/atom+xml;type=feed",
"application/atom+json",
"application/atom+json;type=feed",
"application/json",
"application/xml",
"text/xml"})
public Response get() {
Feed feed = abdera.newFeed();
// NOTE - RFC 4287 requires a feed to have id, title, and updated properties
feed.setId("users");
feed.setTitle("Contacts System Users");
feed.addLink(uriInfo.getRequestUriBuilder().build().toString(), "self");
synchronized (Database.users) {
feed.setUpdated(Database.usersUpdated);
for (User user : Database.users.values()) {
Entry entry = abdera.newEntry();
entry.setId(user.getId());
entry.setTitle(user.getUsername());
entry.setUpdated(user.getUpdated());
String uri = uriInfo.getRequestUriBuilder().path(user.getUsername()).build().toString();
entry.addLink(uri, "self");
entry.addLink(uri, "edit");
contentHelper.setContentEntity(entry, MediaType.APPLICATION_XML_TYPE, user);
feed.addEntry(entry);
}
}
return Response.ok(feed).build();
}
/**
* <p>Create a new user based on the specified contact information.</p>
*/
@RolesAllowed("admin")
@POST
@Consumes({"application/atom+xml",
"application/atom+xml;type=entry",
"application/xml",
"text/xml"})
public Response post(Entry entry) {
// Validate the incoming user information independent of the database
if (entry == null) {
return Response.status(400).
type("text/plain").
entity("Missing entry in request body\r\n").build();
}
User user = null;
try {
user = contentHelper.getContentEntity(entry, MediaType.APPLICATION_XML_TYPE, User.class);
} catch (IllegalArgumentException e) {
return Response.status(400).
type("text/plain").
entity("Missing content element in the supplied entry\r\n").build();
}
StringBuilder errors = new StringBuilder();
if ((user.getId() == null) || (user.getId().length() < 1)) {
user.setId(UUID.randomUUID().toString());
}
if ((user.getPassword() == null) || (user.getPassword().length() < 1)) {
errors.append("Missing 'password' property\r\n");
}
user.setUpdated(new Date());
if ((user.getUsername() == null) || (user.getUsername().length() < 1)) {
errors.append("Missing 'username' property\r\n");
}
if (errors.length() > 0) {
return Response.status(400).
type("text/plain").
entity(errors.toString()).build();
}
// Validate conditions that require locking the database
synchronized (Database.users) {
if (Database.users.get(user.getUsername()) != null) {
return Response.status(409).
type("text/plain").
entity("User '" + user.getUsername() + "' already exists\r\n").
build();
}
// Update the database with the new username
Database.users.put(user.getUsername(), user);
Database.usersUpdated = new Date();
synchronized (Database.contacts) {
Database.contacts.put(user.getUsername(), new ArrayList<Contact>());
Database.contactsUpdated.put(user.getUsername(), Database.usersUpdated);
}
return Response.created(uriInfo.getRequestUriBuilder().path(user.getUsername()).build()).
build();
}
}
/**
* <p>Return an instance of {@link UserResource} configured for the
* specified username.</p>
*
* @param username Username of the specified user
*/
@Path("{username}")
public UserResource user(@PathParam("username") String username) {
return new UserResource(uriInfo, contentHelper, username);
}
}