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