biz.c24.io.spring.integration.transformer.XPathTransformerIUTests.java Source code

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Here is the source code for biz.c24.io.spring.integration.transformer.XPathTransformerIUTests.java

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/*
 * 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 static biz.c24.io.spring.integration.test.TestUtils.*;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.junit.matchers.JUnitMatchers.*;

import java.util.List;

import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.integration.support.MessageBuilder;

import biz.c24.io.examples.models.basic.Employee;
import biz.c24.io.spring.integration.xpath.XPathEvaluationType;

public class XPathTransformerIUTests {

    @Test
    public void canTransformToListOfString() throws Exception {

        C24XPathTransformer transformer = new C24XPathTransformer("//FirstName");
        transformer.setEvaluationType(XPathEvaluationType.LIST_RESULT);

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

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

        @SuppressWarnings("unchecked")
        List<String> payload = (List<String>) outputMessage.getPayload();
        assertThat(payload, notNullValue());
        assertThat(payload, hasItems("Andy", "Joe", "Greg"));

    }

    @Test
    public void canTransformToListOfEmployee() throws Exception {

        C24XPathTransformer transformer = new C24XPathTransformer("//Employee");
        transformer.setEvaluationType(XPathEvaluationType.LIST_RESULT);

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

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

        List<Object> payload = (List<Object>) outputMessage.getPayload();
        assertThat(payload, notNullValue());
        for (Object o : payload) {
            assertThat(o, is(Employee.class));
        }
    }

    @Test
    public void canTransformToString() throws Exception {

        C24XPathTransformer transformer = new C24XPathTransformer("//Employee[1]/FirstName");
        transformer.setEvaluationType(XPathEvaluationType.STRING_RESULT);

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

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

        assertThat(outputMessage.getPayload(), notNullValue());
        assertThat((String) outputMessage.getPayload(), is("Andy"));
    }

}