/*
* Copyright 2012 Apache Software Foundation.
*
* 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 org.apache.flume.api;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.junit.Test;
import org.apache.avro.ipc.Server;
import org.apache.flume.Event;
import org.apache.flume.EventDeliveryException;
import org.apache.flume.FlumeException;
import org.apache.flume.event.EventBuilder;
import org.apache.flume.api.RpcTestUtils.FailedAvroHandler;
import org.apache.flume.api.RpcTestUtils.OKAvroHandler;
import org.apache.flume.api.RpcTestUtils.ThrowingAvroHandler;
import org.apache.flume.api.RpcTestUtils.UnknownAvroHandler;
import org.junit.Assert;
/**
*
*/
public class TestNettyAvroRpcClient {
private static final Logger logger =
Logger.getLogger(TestNettyAvroRpcClient.class.getName());
private static final String localhost = "localhost";
/**
* Simple request
* @throws FlumeException
* @throws EventDeliveryException
*/
@Test
public void testOKServerSimple() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerSimpleAppendTest(new OKAvroHandler());
}
/**
* Simple batch request
* @throws FlumeException
* @throws EventDeliveryException
*/
@Test
public void testOKServerBatch() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerBatchAppendTest(new OKAvroHandler());
}
/**
* Try to connect to a closed port.
* Note: this test tries to connect to port 1 on localhost.
* @throws FlumeException
*/
@Test(expected=FlumeException.class)
public void testUnableToConnect() throws FlumeException {
NettyAvroRpcClient client = new NettyAvroRpcClient.Builder()
.hostname(localhost).port(1).build();
}
/**
* Send too many events at once. Should handle this case gracefully.
* @throws FlumeException
* @throws EventDeliveryException
*/
@Test
public void testBatchOverrun() throws FlumeException, EventDeliveryException {
int batchSize = 10;
int moreThanBatchSize = batchSize + 1;
NettyAvroRpcClient client = null;
Server server = RpcTestUtils.startServer(new OKAvroHandler());
try {
client = new NettyAvroRpcClient.Builder()
.hostname(localhost).port(server.getPort()).batchSize(batchSize)
.build();
// send one more than the batch size
List<Event> events = new ArrayList<Event>();
for (int i = 0; i < moreThanBatchSize; i++) {
events.add(EventBuilder.withBody("evt: " + i, Charset.forName("UTF8")));
}
client.appendBatch(events);
} finally {
RpcTestUtils.stopServer(server);
if (client != null) client.close();
}
}
/**
* First connect the client, then shut down the server, then send a request.
* @throws FlumeException
* @throws EventDeliveryException
*/
@Test(expected=EventDeliveryException.class)
public void testServerDisconnect() throws FlumeException,
EventDeliveryException {
NettyAvroRpcClient client = null;
Server server = RpcTestUtils.startServer(new OKAvroHandler());
try {
client = RpcTestUtils.getStockLocalClient(server.getPort());
server.close();
try {
server.join();
} catch (InterruptedException ex) {
logger.log(Level.WARNING, "Thread interrupted during join()", ex);
Thread.currentThread().interrupt();
}
try {
client.append(EventBuilder.withBody("hello", Charset.forName("UTF8")));
} finally {
Assert.assertFalse("Client should not be active", client.isActive());
}
} finally {
RpcTestUtils.stopServer(server);
if (client != null) client.close();
}
}
/**
* First connect the client, then close the client, then send a request.
* @throws FlumeException
* @throws EventDeliveryException
*/
@Test(expected=EventDeliveryException.class)
public void testClientClosedRequest() throws FlumeException,
EventDeliveryException {
NettyAvroRpcClient client = null;
Server server = RpcTestUtils.startServer(new OKAvroHandler());
try {
client = RpcTestUtils.getStockLocalClient(server.getPort());
client.close();
Assert.assertFalse("Client should not be active", client.isActive());
System.out.println("Yaya! I am not active after client close!");
client.append(EventBuilder.withBody("hello", Charset.forName("UTF8")));
} finally {
RpcTestUtils.stopServer(server);
if (client != null) client.close();
}
}
/**
* Send an event to an online server that returns FAILED.
*/
@Test(expected=EventDeliveryException.class)
public void testFailedServerSimple() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerSimpleAppendTest(new FailedAvroHandler());
logger.severe("Failed: I should never have gotten here!");
}
/**
* Send an event to an online server that returns UNKNOWN.
*/
@Test(expected=EventDeliveryException.class)
public void testUnknownServerSimple() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerSimpleAppendTest(new UnknownAvroHandler());
logger.severe("Unknown: I should never have gotten here!");
}
/**
* Send an event to an online server that throws an exception.
*/
@Test(expected=EventDeliveryException.class)
public void testThrowingServerSimple() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerSimpleAppendTest(new ThrowingAvroHandler());
logger.severe("Throwing: I should never have gotten here!");
}
/**
* Send a batch of events to a server that returns FAILED.
*/
@Test(expected=EventDeliveryException.class)
public void testFailedServerBatch() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerBatchAppendTest(new FailedAvroHandler());
logger.severe("Failed: I should never have gotten here!");
}
/**
* Send a batch of events to a server that returns UNKNOWN.
*/
@Test(expected=EventDeliveryException.class)
public void testUnknownServerBatch() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerBatchAppendTest(new UnknownAvroHandler());
logger.severe("Unknown: I should never have gotten here!");
}
/**
* Send a batch of events to a server that always throws exceptions.
*/
@Test(expected=EventDeliveryException.class)
public void testThrowingServerBatch() throws FlumeException,
EventDeliveryException {
RpcTestUtils.handlerBatchAppendTest(new ThrowingAvroHandler());
logger.severe("Throwing: I should never have gotten here!");
}
}