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.IOException; 021import java.io.Writer; 022 023import org.apache.logging.log4j.Level; 024import org.apache.logging.log4j.Marker; 025import org.apache.logging.log4j.spi.ExtendedLogger; 026 027/** 028 * Logs each line written to a pre-defined level. Can also be configured with a Marker. This class provides an interface 029 * that follows the {@link java.io.Writer} methods in spirit, but doesn't require output to any external writer. 030 * 031 * @since 2.1 032 */ 033public class LoggerWriter extends Writer { 034 private static final String FQCN = LoggerWriter.class.getName(); 035 036 private final CharStreamLogger logger; 037 private final String fqcn; 038 039 protected LoggerWriter(final ExtendedLogger logger, final String fqcn, final Level level, final Marker marker) { 040 this.logger = new CharStreamLogger(logger, level, marker); 041 this.fqcn = fqcn == null ? FQCN : fqcn; 042 } 043 044 @Override 045 public void close() throws IOException { 046 this.logger.close(this.fqcn); 047 } 048 049 @Override 050 public void flush() throws IOException { 051 // do nothing 052 } 053 054 @Override 055 public String toString() { 056 return this.getClass().getSimpleName() + "[fqcn=" + this.fqcn + ", logger=" + this.logger + "]"; 057 } 058 059 @Override 060 public void write(final char[] cbuf) throws IOException { 061 this.logger.put(this.fqcn, cbuf, 0, cbuf.length); 062 } 063 064 @Override 065 public void write(final char[] cbuf, final int off, final int len) throws IOException { 066 this.logger.put(this.fqcn, cbuf, off, len); 067 } 068 069 @Override 070 public void write(final int c) throws IOException { 071 this.logger.put(this.fqcn, (char) c); 072 } 073 074 @Override 075 public void write(final String str) throws IOException { 076 this.logger.put(this.fqcn, str, 0, str.length()); 077 } 078 079 @Override 080 public void write(final String str, final int off, final int len) throws IOException { 081 this.logger.put(this.fqcn, str, off, len); 082 } 083}