/*
* Copyright 2002-2016 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.transformer;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;
import java.io.Serializable;
import org.junit.Test;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.GenericMessage;
/**
* @author Mark Fisher
*/
public class PayloadSerializingTransformerTests {
@Test
public void serializeString() throws Exception {
PayloadSerializingTransformer transformer = new PayloadSerializingTransformer();
Message<?> result = transformer.transform(new GenericMessage<String>("foo"));
Object payload = result.getPayload();
assertNotNull(payload);
assertTrue(payload instanceof byte[]);
ByteArrayInputStream byteStream = new ByteArrayInputStream((byte[]) payload);
ObjectInputStream objectStream = new ObjectInputStream(byteStream);
Object deserialized = objectStream.readObject();
assertEquals("foo", deserialized);
}
@Test
public void serializeObject() throws Exception {
PayloadSerializingTransformer transformer = new PayloadSerializingTransformer();
TestBean testBean = new TestBean("test");
Message<?> result = transformer.transform(new GenericMessage<TestBean>(testBean));
Object payload = result.getPayload();
assertNotNull(payload);
assertTrue(payload instanceof byte[]);
ByteArrayInputStream byteStream = new ByteArrayInputStream((byte[]) payload);
ObjectInputStream objectStream = new ObjectInputStream(byteStream);
Object deserialized = objectStream.readObject();
assertEquals(TestBean.class, deserialized.getClass());
assertEquals(testBean.name, ((TestBean) deserialized).name);
}
@Test(expected = MessageTransformationException.class)
public void invalidPayload() {
PayloadSerializingTransformer transformer = new PayloadSerializingTransformer();
transformer.transform(new GenericMessage<Object>(new Object()));
}
@Test
public void customSerializer() {
PayloadSerializingTransformer transformer = new PayloadSerializingTransformer();
transformer.setConverter(source -> "Converted".getBytes());
Message<?> message = transformer.transform(MessageBuilder.withPayload("Test").build());
assertEquals("Converted", new String((byte[]) message.getPayload()));
}
@SuppressWarnings("serial")
private static class TestBean implements Serializable {
private final String name;
TestBean(String name) {
this.name = name;
}
}
}