/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.logging.log4j.io;
  
  import java.io.FilterReader;
  import java.io.IOException;
  import java.io.Reader;
  import java.nio.CharBuffer;
  
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.Marker;
  import org.apache.logging.log4j.io.internal.InternalReader;
  import org.apache.logging.log4j.spi.ExtendedLogger;
  
  /**
   * Logs each line read to a pre-defined level. Can also be configured with a Marker.
   *
   * @since 2.1
   */
  public class LoggerReader extends FilterReader {
      private static final String FQCN = LoggerReader.class.getName();
  
      private final InternalReader reader;
  
      protected LoggerReader(final Reader reader, final ExtendedLogger logger, final String fqcn, final Level level,
                             final Marker marker) {
          super(reader);
          this.reader = new InternalReader(reader, logger, fqcn == null ? FQCN : fqcn, level, marker);
      }
  
      @Override
      public void close() throws IOException {
          reader.close();
      }
  
      @Override
      public int read() throws IOException {
          return reader.read();
      }
  
      @Override
      public int read(final char[] cbuf) throws IOException {
          return reader.read(cbuf);
      }
  
      @Override
      public int read(final char[] cbuf, final int off, final int len) throws IOException {
          return reader.read(cbuf, off, len);
      }
  
      @Override
      public int read(final CharBuffer target) throws IOException {
          return reader.read(target);
      }
  
      @Override
      public String toString() {
          return LoggerReader.class.getSimpleName() + this.reader.toString();
      }
  }