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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements. See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache license, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License. You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the license for the specific language governing permissions and
    15   * limitations under the license.
    16   */
    17  package org.apache.logging.log4j.core.net.server;
    18
    19  import java.io.IOException;
    20  import java.io.InputStream;
    21
    22  import org.apache.logging.log4j.Logger;
    23  import org.apache.logging.log4j.status.StatusLogger;
    24
    25  /**
    26   * Abstract class for implementations of {@link LogEventBridge}.
    27   *
    28   * @param <T>
    29   *            The kind of input stream read
    30   */
    31  public abstract class AbstractLogEventBridge<T extends InputStream> implements LogEventBridge<T> {
    32
    33      protected static final int END = -1;
    34
    35      protected static final Logger logger = StatusLogger.getLogger();
    36
    37      // The default is to return the same object as given.
    38      @SuppressWarnings("unchecked")
    39      @Override
    40      public T wrapStream(final InputStream inputStream) throws IOException {
    41          return (T) inputStream;
    42      }
    43
    44  }