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.activemq;
018    
019    import org.apache.activemq.transport.Transport;
020    
021    import java.io.IOException;
022    
023    /**
024     * @author <a href="http://hiramchirino.com">Hiram Chirino</a>
025     */
026    public class TransportLoggerSupport {
027    
028        public static String defaultLogWriterName = "default";
029    
030        public static interface SPI {
031            public Transport createTransportLogger(Transport transport) throws IOException;
032            public Transport createTransportLogger(Transport transport, String logWriterName, boolean dynamicManagement, boolean startLogging, int jmxPort) throws IOException;
033        }
034    
035        final static public SPI spi;
036        static {
037            SPI temp;
038            try {
039                temp = (SPI) TransportLoggerSupport.class.getClassLoader().loadClass("org.apache.activemq.transport.TransportLoggerFactorySPI").newInstance();
040            } catch (Throwable e) {
041                temp = null;
042            }
043            spi = temp;
044        }
045    
046        public static Transport createTransportLogger(Transport transport) throws IOException {
047            if( spi!=null ) {
048                return spi.createTransportLogger(transport);
049            } else {
050                return transport;
051            }
052        }
053    
054        public static Transport createTransportLogger(Transport transport, String logWriterName, boolean dynamicManagement, boolean startLogging, int jmxPort) throws IOException {
055            if( spi!=null ) {
056                return spi.createTransportLogger(transport, logWriterName, dynamicManagement, startLogging, jmxPort);
057            } else {
058                return transport;
059            }
060        }
061    
062    }