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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/pattern/ThrowableInformationPatternConverter.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.pattern; import org.apache.log4j.spi.LoggingEvent; import org.apache.log4j.spi.ThrowableInformation; /** * Outputs the ThrowableInformation portion of the LoggingEvent. * By default, outputs the full stack trace. %throwable{none} * or %throwable{0} suppresses the stack trace. %throwable{short} * or %throwable{1} outputs just the first line. %throwable{n} * will output n lines for a positive integer or drop the last * -n lines for a negative integer. * * @author Paul Smith * */ public class ThrowableInformationPatternConverter extends LoggingEventPatternConverter { /** * Maximum lines of stack trace to output. */ private int maxLines = Integer.MAX_VALUE; /** * Private constructor. * @param options options, may be null. */ private ThrowableInformationPatternConverter( final String[] options) { super("Throwable", "throwable"); if ((options != null) && (options.length > 0)) { if("none".equals(options[0])) { maxLines = 0; } else if("short".equals(options[0])) { maxLines = 1; } else { try { maxLines = Integer.parseInt(options[0]); } catch(NumberFormatException ex) { } } } } /** * Gets an instance of the class. * @param options pattern options, may be null. If first element is "short", * only the first line of the throwable will be formatted. * @return instance of class. */ public static ThrowableInformationPatternConverter newInstance( final String[] options) { return new ThrowableInformationPatternConverter(options); } /** * {@inheritDoc} */ public void format(final LoggingEvent event, final StringBuffer toAppendTo) { if (maxLines != 0) { ThrowableInformation information = event.getThrowableInformation(); if (information != null) { String[] stringRep = information.getThrowableStrRep(); int length = stringRep.length; if (maxLines < 0) { length += maxLines; } else if (length > maxLines) { length = maxLines; } for (int i = 0; i < length; i++) { String string = stringRep[i]; toAppendTo.append(string).append("\n"); } } } } /** * This converter obviously handles throwables. * @return true. */ public boolean handlesThrowable() { return true; } }
⏎ org/apache/log4j/pattern/ThrowableInformationPatternConverter.java
Or download all of them as a single archive file:
File name: log4j-1.2.17-sources.jar File size: 481200 bytes Release date: 2012-05-06 Download
⇒ Download and Install apache-log4j-1.2.15.zip
⇐ Download and Install log4j-1.2.17.zip
2015-12-14, 47937👍, 0💬
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