IoMarshallingTransformerIUTests.java

/*
 * Copyright 2011 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 biz.c24.io.spring.integration.transformer;

import biz.c24.io.examples.models.basic.InputDocumentRootElement;
import biz.c24.io.spring.core.C24Model;
import biz.c24.io.spring.sink.JsonSinkFactory;
import biz.c24.io.spring.sink.OutputType;
import biz.c24.io.spring.sink.TextualSinkFactory;
import biz.c24.io.spring.sink.XmlSinkFactory;
import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.integration.support.MessageBuilder;

import static biz.c24.io.spring.integration.test.TestUtils.*;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.junit.Assert.assertThat;

public class IoMarshallingTransformerIUTests {

	C24Model model = new C24Model(InputDocumentRootElement.getInstance());

	@Test
	public void canMarshalXmlToBytearray() throws Exception {

		C24MarshallingTransformer ioMarshallingTransformer = new C24MarshallingTransformer();
		ioMarshallingTransformer.setOutputType(OutputType.BYTE_ARRAY);
		XmlSinkFactory xmlSinkFactory = new XmlSinkFactory();
		ioMarshallingTransformer.setSinkFactory(xmlSinkFactory);

		Message<?> message = MessageBuilder.withPayload(loadObject()).build();

		Message<?> outputMessage = ioMarshallingTransformer.transform(message);

		assertThat(outputMessage.getPayload(), notNullValue());
		assertThat(outputMessage.getPayload(), instanceOf(byte[].class));

		String xml = new String((byte[]) outputMessage.getPayload(), "UTF-8");

		// TODO: XML equivalence match

	}

	@Test
	public void canMarshalXmlToString() throws Exception {

		C24MarshallingTransformer ioMarshallingTransformer = new C24MarshallingTransformer();
		ioMarshallingTransformer.setOutputType(OutputType.STRING);
		XmlSinkFactory xmlSinkFactory = new XmlSinkFactory();
		ioMarshallingTransformer.setSinkFactory(xmlSinkFactory);

		Message message = MessageBuilder.withPayload(loadObject()).build();

		Message<?> outputMessage = ioMarshallingTransformer.transform(message);

		assertThat(outputMessage.getPayload(), notNullValue());
		assertThat(outputMessage.getPayload(), instanceOf(String.class));

		// TODO: XML equivalence match

	}

	@Test
	public void canMarshalTextToString() throws Exception {

		C24MarshallingTransformer ioMarshallingTransformer = new C24MarshallingTransformer();
		ioMarshallingTransformer.setOutputType(OutputType.STRING);
		ioMarshallingTransformer.setSinkFactory(new TextualSinkFactory());

		Message message = MessageBuilder.withPayload(loadObject()).build();

		Message<?> outputMessage = ioMarshallingTransformer.transform(message);

		assertThat((String) outputMessage.getPayload(), is(loadCsvString()));

	}

	@Test
	public void canMarshalTextToByteArray() throws Exception {

		C24MarshallingTransformer ioMarshallingTransformer = new C24MarshallingTransformer();
		ioMarshallingTransformer.setOutputType(OutputType.BYTE_ARRAY);
		ioMarshallingTransformer.setSinkFactory(new TextualSinkFactory());

		Message message = MessageBuilder.withPayload(loadObject()).build();

		Message<?> outputMessage = ioMarshallingTransformer.transform(message);

		assertThat((byte[]) outputMessage.getPayload(), is(loadCsvBytes()));

	}

    @Test
	public void canMarshalTextToJsonString() throws Exception {

		C24MarshallingTransformer ioMarshallingTransformer = new C24MarshallingTransformer();
		ioMarshallingTransformer.setOutputType(OutputType.STRING);
		ioMarshallingTransformer.setSinkFactory(new JsonSinkFactory());

		Message message = MessageBuilder.withPayload(loadObject()).build();
		Message<?> outputMessage = ioMarshallingTransformer.transform(message);
		String result = ((String)outputMessage.getPayload()).replaceAll("\n", "").replaceAll("\t", "");
		String expected = loadJsonString().replaceAll("\n", "").replaceAll("\t", "");
		assertThat(result, is(expected));
	}

}