camel-2.8.x/camel-core/src/test/java/org/apache/camel/component/bean/issues/BeanRouteToDerivedClassTest.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.component.bean.issues;

import org.apache.camel.ContextTestSupport;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.JndiRegistry;

/**
 * @version 
 */
public class BeanRouteToDerivedClassTest extends ContextTestSupport {

    private DerivedClass derived = new DerivedClass();

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

    public void testDerivedClassCalled() throws Exception {
        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:start")
                    .to("bean:derived?method=process");
            }
        });
        context.start();

        template.sendBody("direct:start", "Hello World");

        assertEquals("Derived class should have been invoked", "Hello World", derived.getAndClearBody());
    }
    
    public void testDerivedClassCalledWithNoCustomProcessor() throws Exception {
        context.getTypeConverterRegistry().addTypeConverter(Processor.class, MyMessageListener.class, new MyMessageToProcessorConverter());

        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:start")
                    .to("bean:derived?method=process");

                from("direct:other")
                    .to("bean:derived");
            }
        });
        context.start();

        Object out = template.requestBody("direct:start", "Hello World");
        assertEquals("Derived class should have been invoked", "Hello World", derived.getAndClearBody());
        assertEquals("Hello World", out.toString());

        out = template.requestBody("direct:other", new MyMessage("Hello World"));
        assertEquals("Derived class should NOT have been invoked", null, derived.getAndClearBody());
        assertEquals("Bye World", out.toString());
    }
    
    public void testDerivedClassCalledWithCustomProcessor() throws Exception {
        context.getTypeConverterRegistry().addTypeConverter(Processor.class, MyMessageListener.class, new MyMessageToProcessorConverter());

        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                // Explicit method name given so always call this
                from("direct:start")
                    .to("bean:derived?method=process");

                // no explicit method name then a custom processor can kick in
                from("direct:other")
                    .to("bean:derived");
            }
        });
        context.start();

        Object out = template.requestBody("direct:start", new MyMessage("Hello World"));
        assertEquals("Derived class should have been invoked", "Hello World", derived.getAndClearBody());
        assertEquals("Hello World", out.toString());

        out = template.requestBody("direct:other", new MyMessage("Hello World"));
        assertEquals("Derived class should NOT have been invoked", null, derived.getAndClearBody());
        assertEquals("Bye World", out.toString());
    }

    @Override
    protected JndiRegistry createRegistry() throws Exception {
        JndiRegistry jndi = super.createRegistry();
        jndi.bind("derived", derived);
        return jndi;
    }

}