/*
* Copyright 2002-2014 the original author or authors.
*
* 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.springframework.integration.samples.ftp;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.net.UnknownHostException;
import org.junit.Test;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessagingException;
/**
* @author Gary Russell
* @author Amol Nayak
*
*/
public class FtpOutboundChannelAdapterSample {
@Test
public void runDemo() throws Exception{
ConfigurableApplicationContext ctx =
new ClassPathXmlApplicationContext("META-INF/spring/integration/DynamicFtpOutboundChannelAdapterSample-context.xml");
MessageChannel channel = ctx.getBean("toDynRouter", MessageChannel.class);
File file = File.createTempFile("temp", "txt");
Message<File> message = MessageBuilder.withPayload(file)
.setHeader("customer", "cust1")
.build();
try {
channel.send(message);
}
catch (MessagingException e) {
assertThat(e.getCause().getCause().getCause(), instanceOf(UnknownHostException.class));
assertTrue(e.getCause().getCause().getCause().getMessage().startsWith("host.for.cust1"));
}
// send another so we can see in the log we don't create the ac again.
try {
channel.send(message);
}
catch (MessagingException e) {
assertThat(e.getCause().getCause().getCause(), instanceOf(UnknownHostException.class));
assertTrue(e.getCause().getCause().getCause().getMessage().startsWith("host.for.cust1"));
}
// send to a different customer; again, check the log to see a new ac is built
message = MessageBuilder.withPayload(file)
.setHeader("customer", "cust2").build();
try {
channel.send(message);
}
catch (MessagingException e) {
assertThat(e.getCause().getCause().getCause(), instanceOf(UnknownHostException.class));
assertTrue(e.getCause().getCause().getCause().getMessage().startsWith("host.for.cust2"));
}
// send to a different customer; again, check the log to see a new ac is built
//and the first one created (cust1) should be closed and removed as per the max cache size restriction
message = MessageBuilder.withPayload(file)
.setHeader("customer", "cust3").build();
try {
channel.send(message);
}
catch (MessagingException e) {
assertThat(e.getCause().getCause().getCause(), instanceOf(UnknownHostException.class));
assertTrue(e.getCause().getCause().getCause().getMessage().startsWith("host.for.cust3"));
}
//send to cust1 again, since this one has been invalidated before, we should
//see a new ac created (with ac of cust2 destroyed and removed)
message = MessageBuilder.withPayload(file)
.setHeader("customer", "cust1").build();
try {
channel.send(message);
}
catch (MessagingException e) {
assertThat(e.getCause().getCause().getCause(), instanceOf(UnknownHostException.class));
assertEquals("host.for.cust1", e.getCause().getCause().getCause().getMessage());
}
ctx.close();
}
}