/*
* 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.common.collect.ImmutableSet;
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 com.google.inject.Provider;
import com.google.inject.TypeLiteral;
import io.airlift.configuration.ConfigurationFactory;
import io.airlift.configuration.ConfigurationModule;
import io.airlift.discovery.client.testing.TestingDiscoveryModule;
import io.airlift.node.testing.TestingNodeModule;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.util.Map;
import java.util.Set;
import static io.airlift.discovery.client.DiscoveryBinder.discoveryBinder;
import static io.airlift.discovery.client.ServiceTypes.serviceType;
public class TestDiscoveryBinder
{
@Test
public void testBindSelector()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindServiceAnnouncement(new ServiceAnnouncementProvider().get());
}
}
);
Set<ServiceAnnouncement> announcements = injector.getInstance(Key.get(new TypeLiteral<Set<ServiceAnnouncement>>() { }));
Assert.assertEquals(announcements, ImmutableSet.of(ANNOUNCEMENT));
}
@Test
public void testBindSelectorProviderClass()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindServiceAnnouncement(ServiceAnnouncementProvider.class);
}
}
);
Set<ServiceAnnouncement> announcements = injector.getInstance(Key.get(new TypeLiteral<Set<ServiceAnnouncement>>() { }));
Assert.assertEquals(announcements, ImmutableSet.of(ANNOUNCEMENT));
}
@Test
public void testBindSelectorProviderInstance()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindServiceAnnouncement(new ServiceAnnouncementProvider());
}
}
);
Set<ServiceAnnouncement> announcements = injector.getInstance(Key.get(new TypeLiteral<Set<ServiceAnnouncement>>() { }));
Assert.assertEquals(announcements, ImmutableSet.of(ANNOUNCEMENT));
}
@Test
public void testBindSelectorString()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindSelector("apple");
}
}
);
assertCanCreateServiceSelector(injector, "apple", ServiceSelectorConfig.DEFAULT_POOL);
}
@Test
public void testBindSelectorAnnotation()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindSelector(serviceType("apple"));
}
}
);
assertCanCreateServiceSelector(injector, "apple", ServiceSelectorConfig.DEFAULT_POOL);
}
@Test
public void testBindSelectorStringWithPool()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(ImmutableMap.of("discovery.apple.pool", "apple-pool")),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindSelector("apple");
}
}
);
assertCanCreateServiceSelector(injector, "apple", "apple-pool");
}
@Test
public void testBindSelectorAnnotationWithPool()
throws Exception
{
Injector injector = Guice.createInjector(
new TestModule(ImmutableMap.of("discovery.apple.pool", "apple-pool")),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindSelector(serviceType("apple"));
}
}
);
assertCanCreateServiceSelector(injector, "apple", "apple-pool");
}
private void assertCanCreateServiceSelector(Injector injector, String expectedType, String expectedPool)
{
ServiceSelector actualServiceSelector = injector.getInstance(Key.get(ServiceSelector.class, serviceType(expectedType)));
Assert.assertNotNull(actualServiceSelector);
Assert.assertEquals(actualServiceSelector.getType(), expectedType);
Assert.assertEquals(actualServiceSelector.getPool(), expectedPool);
}
private static class TestModule implements Module
{
private Map<String,String> configProperties;
private TestModule()
{
configProperties = ImmutableMap.of();
}
private TestModule(Map<String, String> configProperties)
{
this.configProperties = ImmutableMap.copyOf(configProperties);
}
@Override
public void configure(Binder binder)
{
binder.install(new ConfigurationModule(new ConfigurationFactory(configProperties)));
binder.install(new TestingNodeModule());
binder.install(new TestingDiscoveryModule());
}
}
private static final ServiceAnnouncement ANNOUNCEMENT = ServiceAnnouncement.serviceAnnouncement("apple").addProperty("a", "apple").build();
private static class ServiceAnnouncementProvider implements Provider<ServiceAnnouncement>
{
@Override
public ServiceAnnouncement get()
{
return ANNOUNCEMENT;
}
}
}