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     */
017    package org.apache.camel.bam;
018    
019    import org.apache.camel.bam.model.*;
020    import org.apache.camel.bam.model.ProcessInstance;
021    import org.apache.camel.Exchange;
022    import org.apache.camel.Expression;
023    import org.apache.commons.logging.Log;
024    import org.apache.commons.logging.LogFactory;
025    import org.springframework.orm.jpa.JpaTemplate;
026    import org.springframework.transaction.support.TransactionTemplate;
027    
028    /**
029     * @version $Revision: $
030     */
031    public class JpaBamProcessor extends JpaBamProcessorSupport<ProcessInstance> {
032        private static final transient Log log = LogFactory.getLog(JpaBamProcessor.class);
033    
034        public JpaBamProcessor(TransactionTemplate transactionTemplate, JpaTemplate template, Expression<Exchange> correlationKeyExpression, ActivityRules activityRules) {
035            super(transactionTemplate, template, correlationKeyExpression, activityRules);
036        }
037    
038        public JpaBamProcessor(TransactionTemplate transactionTemplate, JpaTemplate template, Expression<Exchange> correlationKeyExpression, ActivityRules activityRules, Class<ProcessInstance> entitytype) {
039            super(transactionTemplate, template, correlationKeyExpression, activityRules, entitytype);
040        }
041    
042        protected void processEntity(Exchange exchange, ProcessInstance process) throws Exception {
043            log.info("Processing entity! - attempting to get the current state for process: " + process);
044    
045            ActivityState state = process.getActivityState(getActivity());
046            log.info("Found activity: "+ state);
047    
048            if (state == null) {
049                state = createActivityState(exchange, process);
050                state.setProcess(process);
051    
052                log.info("Storing activity: "+ state + " with process: " + state.getProcess());
053                //getTemplate().persist(state);
054            }
055            ProcessContext context = new ProcessContext(exchange, getActivity(), state);
056    
057            state.processExchange(getActivity(), context);
058        }
059    
060        protected ActivityState createActivityState(Exchange exchange, ProcessInstance process) {
061            return new ActivityState();
062        }
063    }