/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.hedwig.server.handlers;
import java.util.List;
import junit.framework.TestCase;
import org.jboss.netty.channel.Channel;
import org.junit.Before;
import org.junit.Test;
import org.apache.hedwig.protocol.PubSubProtocol.PubSubRequest;
import org.apache.hedwig.protocol.PubSubProtocol.PubSubResponse;
import org.apache.hedwig.protocol.PubSubProtocol.StatusCode;
import org.apache.hedwig.server.common.ServerConfiguration;
import org.apache.hedwig.server.netty.WriteRecordingChannel;
import org.apache.hedwig.server.topics.StubTopicManager;
import org.apache.hedwig.server.topics.TopicManager;
public class TestBaseHandler extends TestCase {
MyBaseHandler handler;
StubTopicManager tm;
PubSubRequest request = PubSubRequest.getDefaultInstance();
WriteRecordingChannel channel = new WriteRecordingChannel();
protected class MyBaseHandler extends BaseHandler {
public MyBaseHandler(TopicManager tm, ServerConfiguration conf) {
super(tm, conf);
}
PubSubRequest request;
public PubSubRequest getRequest() {
return request;
}
@Override
public void handleRequestAtOwner(PubSubRequest request, Channel channel) {
this.request = request;
}
}
@Override
@Before
public void setUp() throws Exception {
ServerConfiguration conf = new ServerConfiguration();
tm = new StubTopicManager(conf);
handler = new MyBaseHandler(tm, conf);
request = PubSubRequest.getDefaultInstance();
channel = new WriteRecordingChannel();
}
public PubSubResponse getPubSubResponse(WriteRecordingChannel channel) {
List<Object> messages = channel.getMessagesWritten();
assertEquals(messages.size(), 1);
Object message = messages.get(0);
assertEquals(message.getClass(), PubSubResponse.class);
return (PubSubResponse) message;
}
@Test
public void testHandleRequestOnRedirect() throws Exception {
tm.setShouldOwnEveryNewTopic(false);
handler.handleRequest(request, channel);
PubSubResponse response = getPubSubResponse(channel);
assertEquals(response.getStatusCode(), StatusCode.NOT_RESPONSIBLE_FOR_TOPIC);
assertEquals(request.getTxnId(), response.getTxnId());
assertNull(handler.getRequest());
}
@Test
public void testHandleRequestOnOwner() throws Exception {
tm.setShouldOwnEveryNewTopic(true);
handler.handleRequest(request, channel);
assertEquals(0, channel.getMessagesWritten().size());
assertEquals(handler.getRequest(), request);
}
@Test
public void testHandleRequestOnError() throws Exception {
tm.setShouldError(true);
handler.handleRequest(request, channel);
PubSubResponse response = getPubSubResponse(channel);
assertEquals(response.getStatusCode(), StatusCode.SERVICE_DOWN);
assertEquals(request.getTxnId(), response.getTxnId());
assertNull(handler.getRequest());
}
}