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package com.sun.jersey.samples.contacts.server;
import com.sun.jersey.samples.contacts.models.Contact;
import java.util.Date;
import java.util.List;
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.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 contacts for the Contacts System.</p>
*/
@Path("contacts/{username}")
public class ContactsResource extends BaseResource {
// ------------------------------------------------------------ Constructors
/**
* <p>Construct a configured instance of this resource class.</p>
*
* @param uriInfo Context URI information to be injected
* @param username Username of the user for which to manage contacts
*/
public ContactsResource(@Context UriInfo uriInfo,
@PathParam("username") String username) {
this.uriInfo = uriInfo;
this.username = username;
}
// ------------------------------------------------------ Instance Variables
/**
* <p>Username of the user whose contacts are to be managed.</p>
*/
private String username = null;
// ---------------------------------------------------------- Public Methods
/**
* <p>Return the set of contacts for this user.</p>
*
* <p>FIXME - support pagination and filtering query parameters.</p>
*/
@RolesAllowed("user")
@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("contacts");
feed.setTitle("Contacts System Contacts for user '" + username + "'");
feed.addLink(uriInfo.getRequestUriBuilder().build().toString(), "self");
synchronized (Database.contacts) {
feed.setUpdated(Database.contactsUpdated.get(username));
List<Contact> contacts = Database.contacts.get(username);
if (contacts == null) {
return Response.status(404).
type("text/plain").
entity("No contacts for user '" + username + "'").
build();
}
for (Contact contact : contacts) {
Entry entry = contact.asEntry();
String uri = uriInfo.getRequestUriBuilder().path(contact.getId()).build().toString();
entry.addLink(uri, "self");
entry.addLink(uri, "edit");
feed.addEntry(entry);
}
}
return Response.ok(feed).build();
}
/**
* <p>Create a new contact based on the specified contact information.</p>
*/
@RolesAllowed("user")
@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
Contact contact = Contact.fromEntry(entry);
StringBuilder errors = new StringBuilder();
if (contact.getContent() == null) {
errors.append("Missing 'content' property\r\n");
}
if ((contact.getId() == null) || (contact.getId().length() < 1)) {
contact.setId(UUID.randomUUID().toString());
}
if ((contact.getName() == null) || (contact.getName().length() < 1)) {
errors.append("Missing 'name' property\r\n");
}
contact.setUpdated(new Date());
if (errors.length() > 0) {
return Response.status(400).
type("text/plain").
entity(errors.toString()).build();
}
// Validate conditions that require locking the database
synchronized (Database.contacts) {
// Verify user is valid and no contact with this id exists
List<Contact> contacts = Database.contacts.get(username);
if (contacts == null) {
return Response.status(404).
type("text/plain").
entity("No contacts for user '" + username + "'\r\n").build();
}
for (Contact existing : contacts) {
if (existing.getId().equals(contact.getId())) {
return Response.status(409).
type("text/plain").
entity("Contact with this ID already exists\r\n").build();
}
}
// Update the database with the new contact
contacts.add(contact);
return Response.created(uriInfo.getRequestUriBuilder().path(contact.getId()).build()).
build();
}
}
/**
* <p>Return an instance of {@link ContactResource} configured for the
* specified contact.</p>
*
* @param id Id of the specified contact
*/
@Path("{id}")
public ContactResource user(@PathParam("id") String id) {
return new ContactResource(uriInfo, username, id);
}
}