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.component.jhc;
018    
019    import java.util.HashMap;
020    import java.util.Map;
021    import org.apache.http.params.HttpParams;
022    
023    public final class JhcServerEngineFactory {
024    
025        private static Map<Integer, JhcServerEngine> portMap = new HashMap<Integer, JhcServerEngine>();
026    
027        private JhcServerEngineFactory() {
028            //Utility Class
029        }
030    
031        public static synchronized JhcServerEngine getJhcServerEngine(final HttpParams params, final int port, final String protocol) {
032            JhcServerEngine engine = portMap.get(port);
033            // check the engine parament
034            if (engine == null) {
035                engine = new JhcServerEngine(params, port, protocol.trim());
036                portMap.put(port, engine);
037            } else {
038                if (!engine.getProtocol().equals(protocol.trim())) {
039                    throw new IllegalArgumentException("Jhc protocol error, the engine's protocol is "
040                                                       + engine.getProtocol() + " you want is " + protocol);
041                }
042            }
043            return engine;
044        }
045    
046    }