/*
* Copyright 2010 Proofpoint, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.airlift.discovery.client;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Binder;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Module;
import io.airlift.configuration.ConfigurationFactory;
import io.airlift.configuration.ConfigurationModule;
import io.airlift.json.JsonModule;
import io.airlift.node.testing.TestingNodeModule;
import org.testng.annotations.Test;
import java.net.URI;
import java.util.Map;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Iterables.getOnlyElement;
import static io.airlift.discovery.client.DiscoveryBinder.discoveryBinder;
import static io.airlift.discovery.client.ServiceTypes.serviceType;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;
public abstract class AbstractTestDiscoveryModule
{
private final Module discoveryModule;
protected AbstractTestDiscoveryModule(Module discoveryModule)
{
this.discoveryModule = checkNotNull(discoveryModule, "discoveryModule is null");
}
@Test
public void testBinding()
throws Exception
{
Injector injector = Guice.createInjector(
new ConfigurationModule(new ConfigurationFactory(ImmutableMap.of("discovery.uri", "fake://server"))),
new JsonModule(),
new TestingNodeModule(),
discoveryModule);
// should produce a discovery announcement client and a lookup client
assertNotNull(injector.getInstance(DiscoveryAnnouncementClient.class));
assertNotNull(injector.getInstance(DiscoveryLookupClient.class));
// should produce an Announcer
assertNotNull(injector.getInstance(Announcer.class));
// should produce a ServiceSelectorManager
assertNotNull(injector.getInstance(ServiceSelectorManager.class));
}
@Test
public void testMerging()
throws Exception
{
final StaticAnnouncementHttpServerInfoImpl httpServerInfo = new StaticAnnouncementHttpServerInfoImpl(
URI.create("http://127.0.0.1:4444"),
URI.create("http://example.com:4444"),
null,
null);
Map<String, String> config = ImmutableMap.<String, String>builder()
.put("discovery.uri", "fake://server")
.put("discovery.carrot.pool", "test")
.build();
Injector injector = Guice.createInjector(
new ConfigurationModule(new ConfigurationFactory(config)),
new JsonModule(),
new TestingNodeModule(),
new DiscoveryModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
binder.bind(AnnouncementHttpServerInfo.class).toInstance(httpServerInfo);
discoveryBinder(binder).bindHttpAnnouncement("apple");
discoveryBinder(binder).bindHttpAnnouncement("banana");
discoveryBinder(binder).bindHttpAnnouncement("carrot");
discoveryBinder(binder).bindHttpSelector("apple");
discoveryBinder(binder).bindHttpSelector("banana");
discoveryBinder(binder).bindHttpSelector("carrot");
discoveryBinder(binder).bindHttpSelector("grape");
}
}
);
HttpServiceSelector selector = injector.getInstance(Key.get(HttpServiceSelector.class, serviceType("apple")));
assertEquals(getOnlyElement(selector.selectHttpService()), URI.create("http://127.0.0.1:4444"));
selector = injector.getInstance(Key.get(HttpServiceSelector.class, serviceType("banana")));
assertEquals(getOnlyElement(selector.selectHttpService()), URI.create("http://127.0.0.1:4444"));
selector = injector.getInstance(Key.get(HttpServiceSelector.class, serviceType("carrot")));
assertTrue(selector.selectHttpService().isEmpty());
selector = injector.getInstance(Key.get(HttpServiceSelector.class, serviceType("grape")));
assertTrue(selector.selectHttpService().isEmpty());
}
}