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Source Code for Apache Log4j 1.2.17
Apache Log4j
provides the interface that applications should code to and provides the adapter
components required for implementers to create a logging implementation.
Bytecode (Java 1.4) for Apache Log4j is provided in a JAR file like log4j-1.2.17.jar.
Source Code files for Apache Log4j are provided in both binary packge like log4j-1.2.17.zip and source package like log4j-1.2.17-sources.zip. You can download them at Apache Log4j Website.
You can also browse Source Code files for Apache Log4j 1.2.17 below.
✍: FYIcenter.com
⏎ org/apache/log4j/helpers/OnlyOnceErrorHandler.java
/* * 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.log4j.helpers; import org.apache.log4j.spi.ErrorHandler; import org.apache.log4j.spi.LoggingEvent; import org.apache.log4j.Logger; import org.apache.log4j.Appender; import java.io.InterruptedIOException; /** The <code>OnlyOnceErrorHandler</code> implements log4j's default error handling policy which consists of emitting a message for the first error in an appender and ignoring all following errors. <p>The error message is printed on <code>System.err</code>. <p>This policy aims at protecting an otherwise working application from being flooded with error messages when logging fails. @author Ceki Gülcü @since 0.9.0 */ public class OnlyOnceErrorHandler implements ErrorHandler { final String WARN_PREFIX = "log4j warning: "; final String ERROR_PREFIX = "log4j error: "; boolean firstTime = true; /** Does not do anything. */ public void setLogger(Logger logger) { } /** No options to activate. */ public void activateOptions() { } /** Prints the message and the stack trace of the exception on <code>System.err</code>. */ public void error(String message, Exception e, int errorCode) { error(message, e, errorCode, null); } /** Prints the message and the stack trace of the exception on <code>System.err</code>. */ public void error(String message, Exception e, int errorCode, LoggingEvent event) { if (e instanceof InterruptedIOException || e instanceof InterruptedException) { Thread.currentThread().interrupt(); } if(firstTime) { LogLog.error(message, e); firstTime = false; } } /** Print a the error message passed as parameter on <code>System.err</code>. */ public void error(String message) { if(firstTime) { LogLog.error(message); firstTime = false; } } /** Does not do anything. */ public void setAppender(Appender appender) { } /** Does not do anything. */ public void setBackupAppender(Appender appender) { } }
⏎ org/apache/log4j/helpers/OnlyOnceErrorHandler.java
Â
⇒ Download and Install apache-log4j-1.2.15.zip
⇠Download and Install log4j-1.2.17.zip
⇑ Downloading Apache Log4j 1.x JAR Packages
⇑⇑ FAQ for Apache Log4j
2015-12-14, 29585👍, 0💬
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