SmooksProcessor_BeanRouting_Test.java

/*
	Milyn - Copyright (C) 2006 - 2010

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License (version 2.1) as published by the Free Software
	Foundation.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the GNU Lesser General Public License for more details:
	http://www.gnu.org/licenses/lgpl.txt
*/
package org.milyn.smooks.camel.processor;

import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.test.junit4.CamelTestSupport;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.hasItems;
import static org.hamcrest.CoreMatchers.is;
import org.junit.Test;
import org.milyn.javabean.Bean;
import org.milyn.payload.StringSource;
import org.milyn.smooks.camel.Coordinate;
import org.milyn.smooks.camel.routing.BeanRouter;

import java.util.ArrayList;
import java.util.List;

/**
 * Functional test for {@link SmooksProcessor} which test bean routing configured
 * via Smooks XML and Smooks programmatic configuration.
 * </p>
 *
 * @author <a href="mailto:tom.fennelly@gmail.com">tom.fennelly@gmail.com</a>
 * @author <a href="mailto:daniel.bevenius@gmail.com">daniel.bevenius@gmail.com</a>
 */
public class SmooksProcessor_BeanRouting_Test extends CamelTestSupport {

    private static final String CORRELATION_ID = "correlationId";

    @Test
    public void processSmooksProgrammaticConfigure() throws Exception {
        final String fromEndpoint = "direct:a";
        final String toEndpoint = "mock:to";
        context.addRoutes(new RouteBuilder() {
            public void configure() {
                final SmooksProcessor smooksProcessor = new SmooksProcessor(context);

                // Smooks JavaBean programmatic configuration
                final String beanId = "coordinate";
                final String selector = "coords/coord";
                final Bean beanConfig = new Bean(Coordinate.class, beanId, selector);
                beanConfig.bindTo("x", "coords/coord/@x").bindTo("y", "coords/coord/@y");
                smooksProcessor.addVisitor(beanConfig);

                // Smooks Camel BeanRouter programmatic configuration
                final BeanRouter camelBeanRouter = new BeanRouter(context);
                camelBeanRouter.setBeanId(beanId).setToEndpoint(toEndpoint)
                        .setCorrelationIdName(CORRELATION_ID).setCorrelationIdPattern("${PUUID.execContext}");
                smooksProcessor.addVisitor(camelBeanRouter, selector);

                from(fromEndpoint).process(smooksProcessor);
            }
        });
        context.start();
        sendBody(fromEndpoint, new StringSource("<coords><coord x='1' y='2' /><coord x='3' y='4' /></coords>"));

        final List<Coordinate> bodies = getBodies(getMockEndpoint(toEndpoint).getExchanges());
        assertThat(bodies, hasItems(new Coordinate(1, 2), new Coordinate(3, 4)));
    }

    @Test
    public void processSmooksXmlConfigured() throws Exception {
        final String fromEndpoint = "direct:a2";
        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from(fromEndpoint).to("smooks://bean_routing_01.xml");
            }
        });
        context.start();
        sendBody(fromEndpoint, new StringSource("<coords><coord x='1' y='2' /><coord x='300' y='400' /></coords>"));

        final Message messageB = getExchange(getMockEndpoint("mock:b"));
        assertThat((Coordinate) messageB.getBody(), is(new Coordinate(1, 2)));

        final Message messageC = getExchange(getMockEndpoint("mock:c"));
        assertThat((Coordinate) messageC.getBody(), is(new Coordinate(300, 400)));
        assertThat(messageB.getHeader(CORRELATION_ID), is(equalTo(messageC.getHeader(CORRELATION_ID))));
    }

    private Message getExchange(final MockEndpoint mockEndpoint) {
        return mockEndpoint.getExchanges().get(0).getIn();
    }

    private List<Coordinate> getBodies(final List<Exchange> exchanges) {
        List<Coordinate> bodies = new ArrayList<Coordinate>();
        for (Exchange exchange : exchanges) {
            bodies.add((Coordinate) exchange.getIn().getBody());
        }
        return bodies;
    }

    @Override
    public boolean isUseRouteBuilder() {
        return false;
    }

}