001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.reifier;
018
019import org.apache.camel.AsyncProcessor;
020import org.apache.camel.Processor;
021import org.apache.camel.Service;
022import org.apache.camel.model.ProcessDefinition;
023import org.apache.camel.model.ProcessorDefinition;
024import org.apache.camel.spi.RouteContext;
025import org.apache.camel.support.processor.DelegateAsyncProcessor;
026import org.apache.camel.support.processor.DelegateSyncProcessor;
027import org.apache.camel.util.ObjectHelper;
028
029public class ProcessReifier extends ProcessorReifier<ProcessDefinition> {
030
031    public ProcessReifier(ProcessorDefinition<?> definition) {
032        super((ProcessDefinition)definition);
033    }
034
035    @Override
036    public Processor createProcessor(RouteContext routeContext) {
037        Processor answer = definition.getProcessor();
038        if (answer == null) {
039            ObjectHelper.notNull(definition.getRef(), "ref", definition);
040            answer = routeContext.mandatoryLookup(definition.getRef(), Processor.class);
041        }
042
043        // ensure its wrapped in a Service so we can manage it from eg. JMX
044        // (a Processor must be a Service to be enlisted in JMX)
045        if (!(answer instanceof Service)) {
046            if (answer instanceof AsyncProcessor) {
047                // the processor is async by nature so use the async delegate
048                answer = new DelegateAsyncProcessor(answer);
049            } else {
050                // the processor is sync by nature so use the sync delegate
051                answer = new DelegateSyncProcessor(answer);
052            }
053        }
054        return answer;
055    }
056}