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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 javax.annotation.security.RolesAllowed;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import org.apache.abdera.model.Entry;
/**
* Resource to manage an individual contact for the Contacts System.
*/
public class ContactResource extends BaseResource {
// ------------------------------------------------------------ Constructors
/**
* Construct a configured instance of this resource class.
*
* @param uriInfo Context URI information to be injected
* @param username Username of the specified user
* @param id Id of the specified contact
*/
public ContactResource(UriInfo uriInfo, String username, String id) {
this.uriInfo = uriInfo;
this.username = username;
this.id = id;
}
// ------------------------------------------------------ Instance Variables
/**
* Id of the specified contact.
*/
private String id = null;
/**
* Username of the specified user.
*/
private String username = null;
// ---------------------------------------------------------- Public Methods
/**
* Delete the contact information for the specified contact.
*/
@RolesAllowed("user")
@DELETE
public Response delete() {
synchronized (Database.contacts) {
List contacts = Database.contacts.get(username);
if (contacts == null) {
return Response.status(404).
type("text/plain").
entity("No contacts for user '" + username + "'").
build();
}
for (int i = 0; i < contacts.size(); i++) {
if (id.equals(contacts.get(i).getId())) {
contacts.remove(i);
Database.contactsUpdated.put(username, new Date());
return Response.ok().build();
}
}
}
return Response.status(404).
type("text/plain").
entity("No contact for user '" + username + "'").
build();
}
/**
* Return the contact information for the specified contact.
*/
@RolesAllowed("user")
@GET
@Produces({"application/atom+xml",
"application/atom+xml;type=entry",
"application/atom+json",
"application/atom+json;type=entry",
"application/json",
"application/xml",
"text/xml"})
public Response get() {
synchronized (Database.contacts) {
List contacts = Database.contacts.get(username);
if (contacts == null) {
return Response.status(404).
type("text/plain").
entity("No contacts for user '" + username + "'").
build();
}
for (int i = 0; i < contacts.size(); i++) {
if (id.equals(contacts.get(i).getId())) {
Entry entry = contacts.get(i).asEntry();
String uri = uriInfo.getRequestUriBuilder().build().toString();
entry.addLink(uri, "self");
entry.addLink(uri, "edit");
return Response.ok(entry).build();
}
}
}
return Response.status(404).
type("text/plain").
entity("No contact for user '" + username + "'").
build();
}
/**
* Update the contact information for the specified contact.
*/
@RolesAllowed("user")
@PUT
@Consumes({"application/atom+xml",
"application/atom+xml;type=entry",
"application/xml",
"text/xml"})
public Response put(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.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) {
// Look up the original contact information
List contacts = Database.contacts.get(username);
if (contacts == null) {
return Response.status(404).
type("text/plain").
entity("No contacts for user '" + username + "'").
build();
}
Contact original = null;
for (int i = 0; i < contacts.size(); i++) {
if (id.equals(contacts.get(i).getId())) {
original = contacts.get(i);
}
}
if (original == null) {
return Response.status(404).
type("text/plain").
entity("No contact for user '" + username + "'\r\n").
build();
}
// Update the original contact information
original.updateFrom(contact);
return Response.
ok().
build();
}
}
}
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