001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.camel.builder;
019    
020    import org.apache.camel.Exchange;
021    import org.apache.camel.Processor;
022    import org.apache.camel.Expression;
023    import org.apache.camel.processor.idempotent.IdempotentConsumer;
024    import org.apache.camel.processor.idempotent.MessageIdRepository;
025    
026    /**
027     * A builder of an {@link IdempotentConsumer}
028     *
029     * @version $Revision: 1.1 $
030     */
031    public class IdempotentConsumerBuilder extends FromBuilder implements ProcessorFactory {
032        private final Expression messageIdExpression;
033        private final MessageIdRepository messageIdRegistry;
034    
035        public IdempotentConsumerBuilder(FromBuilder fromBuilder, Expression messageIdExpression, MessageIdRepository messageIdRegistry) {
036            super(fromBuilder);
037            this.messageIdRegistry = messageIdRegistry;
038            this.messageIdExpression = messageIdExpression;
039        }
040    
041        // Properties
042        //-------------------------------------------------------------------------
043        public MessageIdRepository getMessageIdRegistry() {
044            return messageIdRegistry;
045        }
046    
047        // Implementation methods
048        //-------------------------------------------------------------------------
049        @Override
050        protected Processor wrapInErrorHandler(Processor processor) throws Exception {
051            // lets do no wrapping in error handlers as the parent FromBuilder will do that
052            return processor;
053        }
054    
055        @Override
056        protected Processor wrapProcessor(Processor processor) {
057            return new IdempotentConsumer(messageIdExpression, messageIdRegistry, processor);
058        }
059    }