/*
Copyright (c) 2012 LinkedIn Corp.
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.linkedin.d2.balancer.clients;
import com.linkedin.common.callback.Callback;
import com.linkedin.common.util.None;
import com.linkedin.d2.balancer.properties.PartitionData;
import com.linkedin.d2.balancer.util.partitions.DefaultPartitionAccessor;
import com.linkedin.r2.message.RequestContext;
import com.linkedin.r2.message.rest.RestRequest;
import com.linkedin.r2.message.rest.RestRequestBuilder;
import com.linkedin.r2.message.rest.RestResponse;
import com.linkedin.r2.message.rest.RestResponseBuilder;
import com.linkedin.r2.message.rpc.RpcRequest;
import com.linkedin.r2.message.rpc.RpcRequestBuilder;
import com.linkedin.r2.message.rpc.RpcResponse;
import com.linkedin.r2.transport.common.bridge.client.TransportClient;
import com.linkedin.r2.transport.common.bridge.common.TransportCallback;
import com.linkedin.r2.transport.common.bridge.common.TransportResponse;
import com.linkedin.r2.transport.common.bridge.common.TransportResponseImpl;
import com.linkedin.util.clock.Clock;
import com.linkedin.util.clock.SettableClock;
import org.testng.annotations.Test;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.Map;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
public class TrackerClientTest
{
@Test(groups = { "small", "back-end" })
@SuppressWarnings("deprecation")
public void testClient() throws URISyntaxException
{
URI uri = URI.create("http://test.qa.com:1234/foo");
double weight = 3d;
TestClient wrappedClient = new TestClient();
Clock clock = new SettableClock();
Map<Integer, PartitionData> partitionDataMap = new HashMap<Integer, PartitionData>(2);
partitionDataMap.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(3d));
TrackerClient client = new TrackerClient(uri, partitionDataMap, wrappedClient, clock, null);
assertEquals(client.getUri(), uri);
Double clientWeight = client.getPartitionWeight(DefaultPartitionAccessor.DEFAULT_PARTITION_ID);
assertEquals(clientWeight, weight);
assertEquals(client.getWrappedClient(), wrappedClient);
RestRequest restRequest = new RestRequestBuilder(uri).build();
Map<String, String> restWireAttrs = new HashMap<String, String>();
TestTransportCallback<RestResponse> restCallback =
new TestTransportCallback<RestResponse>();
client.restRequest(restRequest, new RequestContext(), restWireAttrs, restCallback);
assertFalse(restCallback.response.hasError());
assertEquals(wrappedClient.restRequest, restRequest);
assertEquals(wrappedClient.restWireAttrs, restWireAttrs);
RpcRequest rpcRequest = new RpcRequestBuilder(uri).build();
Map<String, String> rpcWireAttrs = new HashMap<String, String>();
TestTransportCallback<RpcResponse> rpcCallback =
new TestTransportCallback<RpcResponse>();
client.rpcRequest(rpcRequest, new RequestContext(), rpcWireAttrs, rpcCallback);
assertTrue(rpcCallback.response.hasError());
assertEquals(wrappedClient.rpcRequest, rpcRequest);
assertEquals(wrappedClient.rpcWireAttrs, rpcWireAttrs);
assertEquals(client.getCallTracker().getCurrentErrorCountTotal(), 1);
assertEquals(client.getCallTracker().getCurrentCallCountTotal(), 2);
}
public static class TestClient implements TransportClient
{
public RestRequest restRequest;
public RequestContext restRequestContext;
public Map<String, String> restWireAttrs;
public TransportCallback<RestResponse> restCallback;
public RpcRequest rpcRequest;
public RequestContext rpcRequestContext;
public Map<String, String> rpcWireAttrs;
public TransportCallback<RpcResponse> rpcCallback;
public boolean shutdownCalled;
@Override
public void restRequest(RestRequest request,
RequestContext requestContext,
Map<String, String> wireAttrs,
TransportCallback<RestResponse> callback)
{
restRequest = request;
restRequestContext = requestContext;
restWireAttrs = wireAttrs;
restCallback = callback;
callback.onResponse(TransportResponseImpl.<RestResponse> success(new RestResponseBuilder().build(),
wireAttrs));
}
@Override
@Deprecated
@SuppressWarnings("deprecation")
public void rpcRequest(RpcRequest request,
RequestContext requestContext,
Map<String, String> wireAttrs,
TransportCallback<RpcResponse> callback)
{
rpcRequest = request;
rpcRequestContext = requestContext;
rpcWireAttrs = wireAttrs;
rpcCallback = callback;
callback.onResponse(TransportResponseImpl.<RpcResponse> error(new Exception("fail"),
wireAttrs));
}
@Override
public void shutdown(Callback<None> callback)
{
shutdownCalled = true;
callback.onSuccess(None.none());
}
}
public static class TestTransportCallback<T> implements TransportCallback<T>
{
public TransportResponse<T> response;
@Override
public void onResponse(TransportResponse<T> response)
{
this.response = response;
}
}
public static class TestCallback<T> implements Callback<T>
{
public Throwable e;
public T t;
@Override
public void onError(Throwable e)
{
this.e = e;
}
@Override
public void onSuccess(T t)
{
this.t = t;
}
}
}