camel-2.8.x/camel-core/src/test/java/org/apache/camel/management/ManagedCustomPolicyTest.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.management;

import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import javax.management.MBeanServer;
import javax.management.ObjectName;

import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.model.ProcessorDefinition;
import org.apache.camel.spi.Policy;
import org.apache.camel.spi.RouteContext;

/**
 * @version 
 */
public class ManagedCustomPolicyTest extends ManagementTestSupport {

    private final AtomicInteger counter = new AtomicInteger();

    public void testPolicy() throws Exception {
        getMockEndpoint("mock:result").expectedMessageCount(1);
        template.sendBody("direct:start", "Hello World");
        assertMockEndpointsSatisfied();

        assertEquals(1, counter.get());

        MBeanServer mbeanServer = getMBeanServer();

        Set<ObjectName> set = mbeanServer.queryNames(new ObjectName("*:type=processors,*"), null);
        assertEquals(3, set.size());

        ObjectName on = ObjectName.getInstance("org.apache.camel:context=localhost/camel-1,type=processors,name=\"foo\"");
        assertTrue("Should be registered: foo",  mbeanServer.isRegistered(on));

        on = ObjectName.getInstance("org.apache.camel:context=localhost/camel-1,type=processors,name=\"result\"");
        assertTrue("Should be registered: result",  mbeanServer.isRegistered(on));

        on = ObjectName.getInstance("org.apache.camel:context=localhost/camel-1,type=processors,name=\"bar\"");
        assertTrue("Should be registered: bar",  mbeanServer.isRegistered(on));
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                // custom policy but processors should be registered
                from("direct:start").policy(new MyPolicy())
                    .to("log:foo").id("foo")
                    .to("mock:result").id("result");

                // no policy but processors should be registered
                from("direct:bar")
                    .to("log:bar").id("bar");
            }
        };
    }

    private final class MyPolicy implements Policy {

        @Override
        public void beforeWrap(RouteContext routeContext, ProcessorDefinition<?> definition) {
            // noop
        }

        @Override
        public Processor wrap(RouteContext routeContext, final Processor processor) {
            return new Processor() {
                @Override
                public void process(Exchange exchange) throws Exception {
                    counter.incrementAndGet();
                    processor.process(exchange);
                }
            };
        }
    }

}