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.Expression;
020import org.apache.camel.Processor;
021import org.apache.camel.model.IdempotentConsumerDefinition;
022import org.apache.camel.model.ProcessorDefinition;
023import org.apache.camel.processor.idempotent.IdempotentConsumer;
024import org.apache.camel.spi.IdempotentRepository;
025import org.apache.camel.spi.RouteContext;
026import org.apache.camel.util.ObjectHelper;
027
028public class IdempotentConsumerReifier extends ExpressionReifier<IdempotentConsumerDefinition> {
029
030    public IdempotentConsumerReifier(ProcessorDefinition<?> definition) {
031        super(IdempotentConsumerDefinition.class.cast(definition));
032    }
033
034    @Override
035    public Processor createProcessor(RouteContext routeContext) throws Exception {
036        Processor childProcessor = this.createChildProcessor(routeContext, true);
037
038        IdempotentRepository idempotentRepository = resolveMessageIdRepository(routeContext);
039        ObjectHelper.notNull(idempotentRepository, "idempotentRepository", definition);
040
041        Expression expression = definition.getExpression().createExpression(routeContext);
042
043        // these boolean should be true by default
044        boolean eager = definition.getEager() == null || definition.getEager();
045        boolean duplicate = definition.getSkipDuplicate() == null || definition.getSkipDuplicate();
046        boolean remove = definition.getRemoveOnFailure() == null || definition.getRemoveOnFailure();
047
048        // these boolean should be false by default
049        boolean completionEager = definition.getCompletionEager() != null && definition.getCompletionEager();
050
051        return new IdempotentConsumer(expression, idempotentRepository, eager, completionEager, duplicate, remove, childProcessor);
052    }
053
054    /**
055     * Strategy method to resolve the
056     * {@link org.apache.camel.spi.IdempotentRepository} to use
057     *
058     * @param routeContext route context
059     * @return the repository
060     */
061    protected <T> IdempotentRepository resolveMessageIdRepository(RouteContext routeContext) {
062        if (definition.getMessageIdRepositoryRef() != null) {
063            definition.setMessageIdRepository(routeContext.mandatoryLookup(definition.getMessageIdRepositoryRef(), IdempotentRepository.class));
064        }
065        return definition.getMessageIdRepository();
066    }
067}