/**
* 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.camel.component.leveldb;
import java.util.concurrent.TimeUnit;
import org.apache.camel.Exchange;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.processor.aggregate.AggregationStrategy;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.fusesource.hawtbuf.Buffer;
import org.junit.Test;
import static org.apache.camel.component.leveldb.LevelDBAggregationRepository.keyBuilder;
public class LevelDBAggregateNotLostTest extends CamelTestSupport {
private LevelDBAggregationRepository repo;
@Override
public void setUp() throws Exception {
deleteDirectory("target/data");
repo = new LevelDBAggregationRepository("repo1", "target/data/leveldb.dat");
super.setUp();
}
@Test
public void testLevelDBAggregateNotLost() throws Exception {
getMockEndpoint("mock:aggregated").expectedBodiesReceived("ABCDE");
getMockEndpoint("mock:result").expectedMessageCount(0);
template.sendBodyAndHeader("direct:start", "A", "id", 123);
template.sendBodyAndHeader("direct:start", "B", "id", 123);
template.sendBodyAndHeader("direct:start", "C", "id", 123);
template.sendBodyAndHeader("direct:start", "D", "id", 123);
template.sendBodyAndHeader("direct:start", "E", "id", 123);
assertMockEndpointsSatisfied(30, TimeUnit.SECONDS);
Thread.sleep(1000);
String exchangeId = getMockEndpoint("mock:aggregated").getReceivedExchanges().get(0).getExchangeId();
// the exchange should be in the completed repo where we should be able to find it
final LevelDBFile levelDBFile = repo.getLevelDBFile();
final LevelDBCamelCodec codec = new LevelDBCamelCodec();
byte[] bf = levelDBFile.getDb().get(keyBuilder("repo1-completed", exchangeId));
// assert the exchange was not lost and we got all the information still
assertNotNull(bf);
Exchange completed = codec.unmarshallExchange(context, new Buffer(bf));
assertNotNull(completed);
// should retain the exchange id
assertEquals(exchangeId, completed.getExchangeId());
assertEquals("ABCDE", completed.getIn().getBody());
assertEquals(123, completed.getIn().getHeader("id"));
assertEquals("size", completed.getProperty(Exchange.AGGREGATED_COMPLETED_BY));
assertEquals(5, completed.getProperty(Exchange.AGGREGATED_SIZE));
// will store correlation keys as String
assertEquals("123", completed.getProperty(Exchange.AGGREGATED_CORRELATION_KEY));
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:start")
.aggregate(header("id"), new MyAggregationStrategy())
.completionSize(5).aggregationRepository(repo)
.log("aggregated exchange id ${exchangeId} with ${body}")
.to("mock:aggregated")
// throw an exception to fail, which we then will loose this message
.throwException(new IllegalArgumentException("Damn"))
.to("mock:result")
.end();
}
};
}
public static class MyAggregationStrategy implements AggregationStrategy {
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
if (oldExchange == null) {
return newExchange;
}
String body1 = oldExchange.getIn().getBody(String.class);
String body2 = newExchange.getIn().getBody(String.class);
oldExchange.getIn().setBody(body1 + body2);
return oldExchange;
}
}
}