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 java.util.concurrent.ScheduledExecutorService; 020 021import org.apache.camel.Expression; 022import org.apache.camel.Processor; 023import org.apache.camel.model.DelayDefinition; 024import org.apache.camel.model.ProcessorDefinition; 025import org.apache.camel.model.ProcessorDefinitionHelper; 026import org.apache.camel.model.language.ExpressionDefinition; 027import org.apache.camel.processor.Delayer; 028import org.apache.camel.spi.RouteContext; 029 030public class DelayReifier extends ExpressionReifier<DelayDefinition> { 031 032 public DelayReifier(ProcessorDefinition<?> definition) { 033 super(DelayDefinition.class.cast(definition)); 034 } 035 036 @Override 037 public Processor createProcessor(RouteContext routeContext) throws Exception { 038 Processor childProcessor = this.createChildProcessor(routeContext, false); 039 Expression delay = createAbsoluteTimeDelayExpression(routeContext); 040 041 boolean async = definition.getAsyncDelayed() == null || definition.getAsyncDelayed(); 042 boolean shutdownThreadPool = ProcessorDefinitionHelper.willCreateNewThreadPool(routeContext, definition, async); 043 ScheduledExecutorService threadPool = ProcessorDefinitionHelper.getConfiguredScheduledExecutorService(routeContext, "Delay", definition, async); 044 045 Delayer answer = new Delayer(routeContext.getCamelContext(), childProcessor, delay, threadPool, shutdownThreadPool); 046 if (definition.getAsyncDelayed() != null) { 047 answer.setAsyncDelayed(definition.getAsyncDelayed()); 048 } 049 if (definition.getCallerRunsWhenRejected() == null) { 050 // should be default true 051 answer.setCallerRunsWhenRejected(true); 052 } else { 053 answer.setCallerRunsWhenRejected(definition.getCallerRunsWhenRejected()); 054 } 055 return answer; 056 } 057 058 private Expression createAbsoluteTimeDelayExpression(RouteContext routeContext) { 059 ExpressionDefinition expr = definition.getExpression(); 060 if (expr != null) { 061 return expr.createExpression(routeContext); 062 } 063 return null; 064 } 065 066}