SplitterAggregateExceptionABCTest.java

package camelinaction;

import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;

/**
 * The Splitter using its build in Aggregator example.
 * <p/>
 * This example will split a message into 3 message each containing the letters A, B and C.
 * Each of those message is then translated into a quote using the {@link WordTranslateBean} bean.
 * The Splitter will then aggregate those messages into a single combined outgoing message.
 * This is done using the {@link camelinaction.MyIgnoreFailureAggregationStrategy}.
 */
public class SplitterAggregateExceptionABCTest extends CamelTestSupport {

    @Test
    public void testSplitAggregateExceptionABC() throws Exception {
        MockEndpoint split = getMockEndpoint("mock:split");
        // we expect 2 messages successfully to be split and translated into a quote
        split.expectedBodiesReceived("Camel rocks", "Yes it works");

        MockEndpoint result = getMockEndpoint("mock:result");
        // and one combined aggregated message as output with two two quotes together
        result.expectedBodiesReceived("Camel rocks+Yes it works");

        // F is an unknown word so it will cause an exception in the WordTranslateBean
        // but the MyIgnoreFailureAggregationStrategy will just ignore the exception
        // and continue routing
        template.sendBody("direct:start", "A,F,C");

        assertMockEndpointsSatisfied();
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:start")
                    // tell Splitter to use the aggregation strategy which handles and ignores exceptions
                    .split(body(), new MyIgnoreFailureAggregationStrategy())
                        // log each splitted message
                        .log("Split line ${body}")
                        // and have them translated into a quote
                        .bean(WordTranslateBean.class)
                        // and send it to a mock
                        .to("mock:split")
                    .end()
                    // log the outgoing aggregated message
                    .log("Aggregated ${body}")
                    // and send it to a mock as well
                    .to("mock:result");
            }
        };
    }
}