EsperPojoRouteTest.java

/**
 * ************************************************************************************
 * https://camel-extra.github.io
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
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 * This program 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 General Public License for more
 * details.
 *
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * http://www.gnu.org/licenses/gpl-2.0-standalone.html
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package org.apacheextras.camel.component.esper;

import java.util.List;

import com.espertech.esper.client.EventBean;
import org.apache.camel.Exchange;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;

public class EsperPojoRouteTest extends CamelTestSupport {

    @Test
    public void testSendMessagesIntoEsper() throws Exception {
        MockEndpoint endpoint = getMockEndpoint("mock:results");
        endpoint.expectedMessageCount(2);

        template.sendBody("direct:start", new MyEvent("a", 1));
        template.sendBody("direct:start", new MyEvent("b", 5));
        template.sendBody("direct:start", new MyEvent("c", 1));
        template.sendBody("direct:start", new MyEvent("d", 5));

        String[] expectedFoos = {"b", "d"};

        assertMockEndpointsSatisfied();
        List<Exchange> list = endpoint.getReceivedExchanges();
        int counter = 0;
        for (Exchange exchange : list) {
            EventBean newEvent = exchange.getIn(EsperMessage.class).getNewEvent();
            assertNotNull(newEvent);
            EventBean oldEvent = exchange.getIn(EsperMessage.class).getOldEvent();
            assertNull(oldEvent);

            Object value = exchange.getIn().getBody();
            EventBean eventBean = assertIsInstanceOf(EventBean.class, value);
            Object event = eventBean.get("event");
            log.info("Received " + event);
            MyEvent myEvent = assertIsInstanceOf(MyEvent.class, event);

            assertEquals("foo[" + counter + "]", expectedFoos[counter++], myEvent.getFoo());
        }
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            public void configure() throws Exception {
                from("direct:start").to("esper://cheese");

                from("esper://cheese?pattern=every event=org.apacheextras.camel.component.esper.MyEvent(bar=5)").to("mock:results");
            }
        };
    }
}