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.processor.interceptor;
018    
019    import org.apache.camel.CamelContext;
020    import org.apache.camel.Exchange;
021    import org.apache.camel.Processor;
022    import org.apache.camel.model.ProcessorDefinition;
023    import org.apache.camel.processor.DelayProcessorSupport;
024    
025    /**
026     * An interceptor for delaying routes.
027     */
028    public class DelayInterceptor extends DelayProcessorSupport {
029    
030        private final ProcessorDefinition<?> node;
031        private Delayer delayer;
032    
033        public DelayInterceptor(CamelContext camelContext, ProcessorDefinition<?> node, Processor target, Delayer delayer) {
034            super(camelContext, target);
035            this.node = node;
036            this.delayer = delayer;
037        }
038    
039        @Override
040        public String toString() {
041            return "DelayInterceptor[delay: " + delayer.getDelay() + " on: " + node + "]";
042        }
043    
044        public long calculateDelay(Exchange exchange) {
045            if (delayer.isEnabled()) {
046                return delayer.getDelay();
047            } else {
048                return 0;
049            }
050        }
051    }