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.spi;
018
019import org.apache.camel.Endpoint;
020import org.apache.camel.Exchange;
021import org.apache.camel.PollingConsumer;
022import org.apache.camel.Service;
023
024public interface ConsumerCache extends Service {
025
026    PollingConsumer acquirePollingConsumer(Endpoint endpoint);
027
028    void releasePollingConsumer(Endpoint endpoint, PollingConsumer pollingConsumer);
029
030    Exchange receive(Endpoint endpoint);
031
032    Exchange receive(Endpoint endpoint, long timeout);
033
034    Exchange receiveNoWait(Endpoint endpoint);
035
036    Object getSource();
037
038    int size();
039
040    int getCapacity();
041
042    long getHits();
043
044    long getMisses();
045
046    long getEvicted();
047
048    void resetCacheStatistics();
049
050    void purge();
051
052    void cleanUp();
053
054    EndpointUtilizationStatistics getEndpointUtilizationStatistics();
055}