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.logging.log4j.core.net.server;
018    
019    import java.io.IOException;
020    import java.io.InputStream;
021    
022    import org.apache.logging.log4j.Logger;
023    import org.apache.logging.log4j.status.StatusLogger;
024    
025    /**
026     * Abstract class for implementations of {@link LogEventBridge}.
027     * 
028     * @param <T>
029     *            The kind of input stream read
030     */
031    public abstract class AbstractLogEventBridge<T extends InputStream> implements LogEventBridge<T> {
032    
033        protected static final int END = -1;
034    
035        protected static final Logger logger = StatusLogger.getLogger();
036    
037        // The default is to return the same object as given.
038        @SuppressWarnings("unchecked")
039        @Override
040        public T wrapStream(final InputStream inputStream) throws IOException {
041            return (T) inputStream;
042        }
043    
044    }