/*
* 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 com.proofpoint.discovery.client;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.inject.Binder;
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 com.proofpoint.bootstrap.Bootstrap;
import com.proofpoint.discovery.client.DiscoveryBinder.BalancingHttpClientBindingBuilder;
import com.proofpoint.discovery.client.announce.ServiceAnnouncement;
import com.proofpoint.discovery.client.testing.TestingDiscoveryModule;
import com.proofpoint.http.client.AsyncHttpClient;
import com.proofpoint.http.client.HttpClient;
import com.proofpoint.http.client.HttpRequestFilter;
import com.proofpoint.http.client.Request;
import com.proofpoint.http.client.balancing.HttpServiceBalancer;
import com.proofpoint.node.testing.TestingNodeModule;
import com.proofpoint.reporting.ReportingModule;
import com.proofpoint.tracetoken.TraceTokenModule;
import org.testng.Assert;
import org.testng.annotations.Test;
import org.weakref.jmx.testing.TestingMBeanModule;
import javax.inject.Qualifier;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.util.Set;
import static com.proofpoint.discovery.client.DiscoveryBinder.discoveryBinder;
import static com.proofpoint.discovery.client.ServiceTypes.serviceType;
import static com.proofpoint.http.client.Request.Builder.fromRequest;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertSame;
public class TestDiscoveryBinder
{
@Test
public void testBindAnnouncements()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.<String, String>of(),
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 testBindAnnouncementProviderClass()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.<String, String>of(),
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 testBindAnnouncementProviderInstance()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.<String, String>of(),
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 = createInjector(
ImmutableMap.<String, String>of(),
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 = createInjector(
ImmutableMap.<String, String>of(),
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 = createInjector(
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 = createInjector(
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");
}
@Test
public void testBindHttpServiceBalancerString()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.<String, String>of(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindHttpBalancer("apple");
}
}
);
Assert.assertNotNull(injector.getInstance(Key.get(HttpServiceBalancer.class, serviceType("apple"))));
}
@Test
public void testBindHttpServiceBalancerAnnotation()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.<String, String>of(),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindHttpBalancer(serviceType("apple"));
}
}
);
Assert.assertNotNull(injector.getInstance(Key.get(HttpServiceBalancer.class, serviceType("apple"))));
}
@Test
public void testBindHttpServiceBalancerStringWithPool()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.apple.pool", "apple-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindHttpBalancer("apple");
}
}
);
Assert.assertNotNull(injector.getInstance(Key.get(HttpServiceBalancer.class, serviceType("apple"))));
}
@Test
public void testBindHttpServiceBalancerAnnotationWithPool()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.apple.pool", "apple-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindHttpBalancer(serviceType("apple"));
}
}
);
Assert.assertNotNull(injector.getInstance(Key.get(HttpServiceBalancer.class, serviceType("apple"))));
}
@Test
public void testBindHttpClientWithDefaultAnnotation()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of(
"discovery.foo.pool", "foo-pool",
"foo.http-client.read-timeout", "1s",
"foo.http-client.max-attempts", "2"
),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredHttpClient("foo");
}
}
);
assertNotNull(injector.getInstance(Key.get(HttpClient.class, serviceType("foo"))));
}
@Test
public void testBindHttpClientWithNameAndDefaultAnnotation()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of(
"discovery.foo.pool", "foo-pool",
"bar.http-client.read-timeout", "1s",
"bar.http-client.max-attempts", "2"
),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredHttpClient("bar", serviceType("foo"));
}
});
assertNotNull(injector.getInstance(Key.get(HttpClient.class, serviceType("foo"))));
}
@Test
public void testBindHttpClientWithoutFilters()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.foo.pool", "foo-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredHttpClient("foo", FooClient.class);
}
}
);
assertNotNull(injector.getInstance(Key.get(HttpClient.class, FooClient.class)));
}
@Test
public void testBindHttpClientWithAliases()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.foo.pool", "foo-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredHttpClient("foo", FooClient.class)
.withAlias(FooAlias1.class)
.withAliases(ImmutableList.of(FooAlias2.class, FooAlias3.class));
}
}
);
HttpClient client = injector.getInstance(Key.get(HttpClient.class, FooClient.class));
assertSame(injector.getInstance(Key.get(HttpClient.class, FooAlias1.class)), client);
assertSame(injector.getInstance(Key.get(HttpClient.class, FooAlias2.class)), client);
assertSame(injector.getInstance(Key.get(HttpClient.class, FooAlias3.class)), client);
}
@SuppressWarnings("deprecation")
@Test
public void testBindAsyncHttpClientWithAliases()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.foo.pool", "foo-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredAsyncHttpClient("foo", FooClient.class)
.withAlias(FooAlias1.class)
.withAliases(ImmutableList.of(FooAlias2.class, FooAlias3.class));
}
}
);
HttpClient client = injector.getInstance(Key.get(AsyncHttpClient.class, FooClient.class));
assertSame(injector.getInstance(Key.get(AsyncHttpClient.class, FooAlias1.class)), client);
assertSame(injector.getInstance(Key.get(AsyncHttpClient.class, FooAlias2.class)), client);
assertSame(injector.getInstance(Key.get(AsyncHttpClient.class, FooAlias3.class)), client);
}
@Test
public void testBindingMultipleFiltersAndClients()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of(
"discovery.foo.pool", "foo-pool",
"discovery.bar.pool", "bar-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredHttpClient("foo", FooClient.class)
.withFilter(TestingRequestFilter.class)
.withFilter(AnotherHttpRequestFilter.class)
.withTracing();
BalancingHttpClientBindingBuilder builder = discoveryBinder(binder).bindDiscoveredHttpClient("bar", BarClient.class);
builder.withFilter(TestingRequestFilter.class);
builder.addFilterBinding().to(AnotherHttpRequestFilter.class);
binder.install(new TraceTokenModule());
}
});
assertNotNull(injector.getInstance(Key.get(HttpClient.class, FooClient.class)));
assertNotNull(injector.getInstance(Key.get(HttpClient.class, BarClient.class)));
}
@SuppressWarnings("deprecation")
@Test
public void testPrivateThreadPool()
throws Exception
{
Injector injector = createInjector(
ImmutableMap.of("discovery.foo.pool", "foo-pool"),
new Module()
{
@Override
public void configure(Binder binder)
{
discoveryBinder(binder).bindDiscoveredAsyncHttpClient("foo", FooClient.class)
.withPrivateIoThreadPool();
}
}
);
AsyncHttpClient fooClient = injector.getInstance(Key.get(AsyncHttpClient.class, FooClient.class));
assertNotNull(fooClient);
}
private static 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 Injector createInjector(ImmutableMap<String, String> configurationProperties, Module module)
throws Exception
{
return Bootstrap.bootstrapApplication("test-application")
.doNotInitializeLogging()
.withModules(
new TestingNodeModule(),
new TestingDiscoveryModule(),
new TestingMBeanModule(),
new ReportingModule(),
module
)
.quiet()
.setRequiredConfigurationProperties(configurationProperties)
.initialize();
}
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;
}
}
@Retention(RUNTIME)
@Target({ElementType.PARAMETER})
@Qualifier
public @interface FooClient
{
}
@Retention(RUNTIME)
@Target({ElementType.PARAMETER})
@Qualifier
public @interface FooAlias1
{
}
@Retention(RUNTIME)
@Target({ElementType.PARAMETER})
@Qualifier
public @interface FooAlias2
{
}
@Retention(RUNTIME)
@Target({ElementType.PARAMETER})
@Qualifier
public @interface FooAlias3
{
}
@Retention(RUNTIME)
@Target({ElementType.PARAMETER})
@Qualifier
public @interface BarClient
{
}
public static class TestingRequestFilter
implements HttpRequestFilter
{
@Override
public Request filterRequest(Request request)
{
return fromRequest(request)
.addHeader("x-custom-filter", "customvalue")
.build();
}
}
public static class AnotherHttpRequestFilter
implements HttpRequestFilter
{
@Override
public Request filterRequest(Request request)
{
return request;
}
}
}