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package org.glassfish.jersey.examples.hello.spring.annotations;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.inject.Singleton;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* Integration of jersey and spring.
* This rest controller is a singleton spring bean with autowired dependencies
* from spring
*
* @author Geoffroy Warin (http://geowarin.github.io)
*/
@Singleton
@Path("spring-resource")
@Service
public class SpringRequestResource {
AtomicInteger counter = new AtomicInteger();
@Autowired
private GreetingService greetingService;
@Autowired
private List<GoodbyeService> goodbyeServicesList;
@Autowired
private Set<GoodbyeService> goodbyeServicesSet;
@Autowired
private List<GoodbyeService> goodbyeServicesIterable;
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getHello() {
return greetingService.greet("world " + counter.incrementAndGet());
}
private void checkIntegrity() {
final Iterator<GoodbyeService> it = goodbyeServicesIterable.iterator();
int i = 0;
while (it.hasNext()) {
final GoodbyeService s1 = it.next();
final GoodbyeService s2 = goodbyeServicesList.get(i);
if (s1 != s2) {
throw new ProcessingException("Instance of service s1 (" + s1.getClass()
+ ") is not equal to service s2(" + s2.getClass() + ")");
}
i++;
}
if (goodbyeServicesList.size() != goodbyeServicesSet.size()) {
throw new ProcessingException("Size of set and size of the list differs. list=" + goodbyeServicesList.size()
+ "; set=" + goodbyeServicesSet.size());
}
}
private GoodbyeService getService(Class<?> serviceClass) {
for (GoodbyeService service : goodbyeServicesList) {
if (serviceClass.isAssignableFrom(service.getClass())) {
return service;
}
}
return null;
}
@Path("goodbye")
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getGoodbye() {
checkIntegrity();
final GoodbyeService goodbyeService = getService(EnglishGoodbyeService.class);
return goodbyeService.goodbye("cruel world");
}
@Path("norwegian-goodbye")
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getNorwegianGoodbye() {
checkIntegrity();
return getService(NorwegianGoodbyeService.class).goodbye("på badet");
}
}