core/camel-core/src/test/java/org/apache/camel/processor/aggregator/AggregateStrategyRefTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.camel.processor.aggregator;

import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.BodyInAggregatingStrategy;
import org.junit.jupiter.api.Test;

public class AggregateStrategyRefTest extends ContextTestSupport {

    @Test
    public void testAggregateExpressionSize() throws Exception {
        MockEndpoint result = getMockEndpoint("mock:result");
        result.expectedBodiesReceived("A+A", "B+B", "Z");

        template.sendBody("direct:start", "A");
        template.sendBody("direct:start", "B");
        template.sendBody("direct:start", "A");
        template.sendBody("direct:start", "B");
        // send the last one with the batch size property
        template.sendBodyAndProperty("direct:start", "Z", Exchange.BATCH_SIZE, 5);

        assertMockEndpointsSatisfied();
    }

    @Override
    protected RouteBuilder createRouteBuilder() {
        return new RouteBuilder() {
            @Override
            public void configure() {
                context.getRegistry().bind("myStrategy", new BodyInAggregatingStrategy());

                // START SNIPPET: e1
                from("direct:start").aggregate(body()).aggregationStrategy("myStrategy").completionFromBatchConsumer()
                        .to("mock:result");
                // END SNIPPET: e1
            }
        };
    }
}