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 */ 017package org.apache.logging.log4j.core.async; 018 019import java.util.Map; 020 021import org.apache.logging.log4j.Level; 022import org.apache.logging.log4j.Marker; 023import org.apache.logging.log4j.ThreadContext.ContextStack; 024import org.apache.logging.log4j.message.Message; 025 026import com.lmax.disruptor.EventTranslator; 027 028/** 029 * This class is responsible for writing elements that make up a log event into 030 * the ringbuffer {@code RingBufferLogEvent}. After this translator populated 031 * the ringbuffer event, the disruptor will update the sequence number so that 032 * the event can be consumed by another thread. 033 */ 034public class RingBufferLogEventTranslator implements 035 EventTranslator<RingBufferLogEvent> { 036 037 private AsyncLogger asyncLogger; 038 private String loggerName; 039 protected Marker marker; 040 protected String fqcn; 041 protected Level level; 042 protected Message message; 043 protected Throwable thrown; 044 private Map<String, String> contextMap; 045 private ContextStack contextStack; 046 private long threadId = Thread.currentThread().getId(); 047 private String threadName = Thread.currentThread().getName(); 048 private int threadPriority = Thread.currentThread().getPriority(); 049 private StackTraceElement location; 050 private long currentTimeMillis; 051 private long nanoTime; 052 053 // @Override 054 @Override 055 public void translateTo(final RingBufferLogEvent event, final long sequence) { 056 event.setValues(asyncLogger, loggerName, marker, fqcn, level, message, thrown, contextMap, contextStack, 057 threadId, threadName, threadPriority, location, currentTimeMillis, nanoTime); 058 clear(); 059 } 060 061 /** 062 * Release references held by this object to allow objects to be garbage-collected. 063 */ 064 private void clear() { 065 setBasicValues(null, // asyncLogger 066 null, // loggerName 067 null, // marker 068 null, // fqcn 069 null, // level 070 null, // data 071 null, // t 072 null, // map 073 null, // contextStack 074 null, // location 075 0, // currentTimeMillis 076 0 // nanoTime 077 ); 078 } 079 080 public void setBasicValues(final AsyncLogger anAsyncLogger, final String aLoggerName, final Marker aMarker, 081 final String theFqcn, final Level aLevel, final Message msg, final Throwable aThrowable, 082 final Map<String, String> aMap, final ContextStack aContextStack, final StackTraceElement aLocation, 083 final long aCurrentTimeMillis, final long aNanoTime) { 084 this.asyncLogger = anAsyncLogger; 085 this.loggerName = aLoggerName; 086 this.marker = aMarker; 087 this.fqcn = theFqcn; 088 this.level = aLevel; 089 this.message = msg; 090 this.thrown = aThrowable; 091 this.contextMap = aMap; 092 this.contextStack = aContextStack; 093 this.location = aLocation; 094 this.currentTimeMillis = aCurrentTimeMillis; 095 this.nanoTime = aNanoTime; 096 } 097 098 public void updateThreadValues() { 099 final Thread currentThread = Thread.currentThread(); 100 this.threadId = currentThread.getId(); 101 this.threadName = currentThread.getName(); 102 this.threadPriority = currentThread.getPriority(); 103 } 104}