public static void main(String[] args) {
Service service = ServiceLocator.getService("Service1");
service.execute();
service = ServiceLocator.getService("Service2");
service.execute();
service = ServiceLocator.getService("Service1");
service.execute();
service = ServiceLocator.getService("Service2");
service.execute();
}
@Test
public void testDoesNotUseTCCL() {
Thread.currentThread()
.setContextClassLoader(
new ClassLoader() {
@Override
public Enumeration<URL> getResources(String name) throws IOException {
throw new AssertionError();
}
});
ServiceLocator serviceLocator = new ServiceLocator();
serviceLocator.getService(TestService.class);
}
@Test
public void testClassHierarchies() {
ServiceLocator provider = new ServiceLocator();
final Service service = new ChildTestService();
provider.addService(service);
assertThat(provider.getService(FooProvider.class), sameInstance(service));
final Service fancyCacheProvider = new FancyCacheProvider();
provider.addService(fancyCacheProvider);
final Collection<CacheProvider> servicesOfType =
provider.getServicesOfType(CacheProvider.class);
assertThat(servicesOfType, is(not(empty())));
assertThat(servicesOfType.iterator().next(), sameInstance(fancyCacheProvider));
}
/* package */ @SuppressWarnings({"unchecked"})
void register() {
ServiceLocator locator = getServiceLocator();
ActiveDescriptor<?> myselfReified = locator.reifyDescriptor(this);
DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
DynamicConfiguration dc = dcs.createDynamicConfiguration();
// habitat.add(this);
HK2Loader loader = this.model.classLoaderHolder;
Set<Type> ctrs = new HashSet<Type>();
ctrs.add(myselfReified.getImplementationClass());
if (ConfigBean.class.isAssignableFrom(this.getClass())) {
ctrs.add(ConfigBean.class);
}
DomDescriptor<Dom> domDesc =
new DomDescriptor<Dom>(
this, ctrs, Singleton.class, getImplementation(), new HashSet<Annotation>());
domDesc.setLoader(loader);
domDescriptor = dc.addActiveDescriptor(domDesc, false);
String key = getKey();
for (String contract : model.contracts) {
ActiveDescriptor<Dom> alias = new AliasDescriptor<Dom>(locator, domDescriptor, contract, key);
dc.addActiveDescriptor(alias, false);
}
if (key != null) {
ActiveDescriptor<Dom> alias =
new AliasDescriptor<Dom>(locator, domDescriptor, model.targetTypeName, key);
dc.addActiveDescriptor(alias, false);
}
dc.commit();
serviceHandle = getHabitat().getServiceHandle(domDescriptor);
}
@Test
public void testCanOverrideDefaultServiceFromServiceLoader() {
ServiceLocator locator = new ServiceLocator(new ExtendedTestService());
TestService testService = locator.getService(TestService.class);
assertThat(testService, instanceOf(ExtendedTestService.class));
}