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 018package org.apache.logging.log4j.io; 019 020import java.io.FilterWriter; 021import java.io.IOException; 022import java.io.Writer; 023 024import org.apache.logging.log4j.Level; 025import org.apache.logging.log4j.Marker; 026import org.apache.logging.log4j.io.internal.InternalFilterWriter; 027import org.apache.logging.log4j.spi.ExtendedLogger; 028 029/** 030 * Logs each line written to a pre-defined level. Can also be configured with a Marker. This class provides an interface 031 * that follows the {@link java.io.Writer} methods in spirit, but doesn't require output to any external out. 032 * 033 * @since 2.1 034 */ 035public class LoggerFilterWriter extends FilterWriter { 036 private static final String FQCN = LoggerFilterWriter.class.getName(); 037 038 private final InternalFilterWriter logger; 039 040 protected LoggerFilterWriter(final Writer out, final ExtendedLogger logger, final String fqcn, final Level level, 041 final Marker marker) { 042 super(out); 043 this.logger = new InternalFilterWriter(out, logger, fqcn == null ? FQCN : fqcn, level, marker); 044 } 045 046 @Override 047 public void close() throws IOException { 048 this.logger.close(); 049 } 050 051 @Override 052 public void flush() throws IOException { 053 this.logger.flush(); 054 } 055 056 @Override 057 public String toString() { 058 return LoggerFilterWriter.class.getSimpleName() + logger.toString(); 059 } 060 061 @Override 062 public void write(final char[] cbuf) throws IOException { 063 this.logger.write(cbuf); 064 } 065 066 @Override 067 public void write(final char[] cbuf, final int off, final int len) throws IOException { 068 this.logger.write(cbuf, off, len); 069 } 070 071 @Override 072 public void write(final int c) throws IOException { 073 this.logger.write(c); 074 } 075 076 @Override 077 public void write(final String str) throws IOException { 078 this.logger.write(str); 079 } 080 081 @Override 082 public void write(final String str, final int off, final int len) throws IOException { 083 this.logger.write(str, off, len); 084 } 085}