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package org.glassfish.jersey.examples.rx.remote;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.inject.Singleton;
import org.glassfish.jersey.examples.rx.Helper;
import org.glassfish.jersey.examples.rx.domain.Destination;
import org.glassfish.jersey.server.ManagedAsync;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
/**
* Obtain a list of visited / recommended places for a given user.
*
* @author Michal Gajdos (michal.gajdos at oracle.com)
*/
@Singleton
@Path("remote/destination")
@Produces("application/json")
public class DestinationResource {
private static final Map<String, List<String>> VISITED = new HashMap<>();
static {
VISITED.put("Sync", Helper.getCountries(5));
VISITED.put("Async", Helper.getCountries(5));
VISITED.put("Guava", Helper.getCountries(5));
VISITED.put("RxJava", Helper.getCountries(5));
}
@GET
@ManagedAsync
@Path("visited")
public List<Destination> visited(@HeaderParam("Rx-User") @DefaultValue("KO") final String user) {
// Simulate long-running operation.
Helper.sleep();
if (!VISITED.containsKey(user)) {
VISITED.put(user, Helper.getCountries(5));
}
return Lists.transform(VISITED.get(user), new Function<String, Destination>() {
@Override
public Destination apply(final String input) {
return new Destination(input);
}
});
}
@GET
@ManagedAsync
@Path("recommended")
public List<Destination> recommended(@HeaderParam("Rx-User") @DefaultValue("KO") final String user,
@QueryParam("limit") @DefaultValue("5") final int limit) {
// Simulate long-running operation.
Helper.sleep();
if (!VISITED.containsKey(user)) {
VISITED.put(user, Helper.getCountries(5));
}
return Lists.transform(Helper.getCountries(limit, VISITED.get(user)), new Function<String, Destination>() {
@Override
public Destination apply(final String input) {
return new Destination(input);
}
});
}
}