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Source Code for Apache Log4j 1.2 Bridge
Apache Log4j 1.2 Bridge allows applications coded to use Log4j 1.2 API to use Log4j 2 instead.
Bytecode (Java 8) for Apache Log4j 1.2 Bridge is provided in a separate JAR file like log4j-1.2-api-2.14.1.jar.
Source Code files for Apache Log4j 1.2 Bridge are provided in both binary packge like apache-log4j-2.14.1-bin.zip and source package like apache-log4j-2.14.1-src.zip. You can download them at Apache Log4j Website.
You can also browse Source Code files for Apache Log4j 1.2 Bridge 2.14.1 below.
✍: FYIcenter.com
⏎ org/apache/log4j/builders/appender/SyslogAppenderBuilder.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.builders.appender; import org.apache.log4j.Appender; import org.apache.log4j.Layout; import org.apache.log4j.bridge.AppenderWrapper; import org.apache.log4j.bridge.LayoutAdapter; import org.apache.log4j.bridge.LayoutWrapper; import org.apache.log4j.builders.AbstractBuilder; import org.apache.log4j.builders.Holder; import org.apache.log4j.config.Log4j1Configuration; import org.apache.log4j.config.PropertiesConfiguration; import org.apache.log4j.spi.Filter; import org.apache.log4j.xml.XmlConfiguration; import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.core.appender.SyslogAppender; import org.apache.logging.log4j.core.config.plugins.Plugin; import org.apache.logging.log4j.core.layout.SyslogLayout; import org.apache.logging.log4j.core.net.Facility; import org.apache.logging.log4j.core.net.Protocol; import org.apache.logging.log4j.status.StatusLogger; import org.w3c.dom.Element; import java.util.Properties; import static org.apache.log4j.builders.BuilderManager.CATEGORY; import static org.apache.log4j.config.Log4j1Configuration.THRESHOLD_PARAM; import static org.apache.log4j.xml.XmlConfiguration.FILTER_TAG; import static org.apache.log4j.xml.XmlConfiguration.LAYOUT_TAG; import static org.apache.log4j.xml.XmlConfiguration.NAME_ATTR; import static org.apache.log4j.xml.XmlConfiguration.PARAM_TAG; import static org.apache.log4j.xml.XmlConfiguration.VALUE_ATTR; import static org.apache.log4j.xml.XmlConfiguration.forEachElement; /** * Build a File Appender */ @Plugin(name = "org.apache.log4j.net.SyslogAppender", category = CATEGORY) public class SyslogAppenderBuilder extends AbstractBuilder implements AppenderBuilder { private static final Logger LOGGER = StatusLogger.getLogger(); private static final String FACILITY_PARAM = "Facility"; private static final String SYSLOG_HOST_PARAM = "SyslogHost"; private static int SYSLOG_PORT = 512; public SyslogAppenderBuilder() { } public SyslogAppenderBuilder(String prefix, Properties props) { super(prefix, props); } @Override public Appender parseAppender(Element appenderElement, XmlConfiguration config) { String name = appenderElement.getAttribute(NAME_ATTR); Holder<Layout> layout = new Holder<>(); Holder<Filter> filter = new Holder<>(); Holder<String> facility = new Holder<>(); Holder<String> level = new Holder<>(); Holder<String> host = new Holder<>(); forEachElement(appenderElement.getChildNodes(), currentElement -> { switch (currentElement.getTagName()) { case LAYOUT_TAG: layout.set(config.parseLayout(currentElement)); break; case FILTER_TAG: filter.set(config.parseFilters(currentElement)); break; case PARAM_TAG: { switch (currentElement.getAttribute(NAME_ATTR)) { case SYSLOG_HOST_PARAM: { host.set(currentElement.getAttribute(VALUE_ATTR)); break; } case FACILITY_PARAM: facility.set(currentElement.getAttribute(VALUE_ATTR)); break; case THRESHOLD_PARAM: { String value = currentElement.getAttribute(VALUE_ATTR); if (value == null) { LOGGER.warn("No value supplied for Threshold parameter, ignoring."); } else { level.set(value); } break; } } break; } } }); return createAppender(name, config, layout.get(), facility.get(), filter.get(), host.get(), level.get()); } @Override public Appender parseAppender(final String name, final String appenderPrefix, final String layoutPrefix, final String filterPrefix, final Properties props, final PropertiesConfiguration configuration) { Filter filter = configuration.parseAppenderFilters(props, filterPrefix, name); Layout layout = configuration.parseLayout(layoutPrefix, name, props); String level = getProperty(THRESHOLD_PARAM); String facility = getProperty(FACILITY_PARAM, "LOCAL0"); String syslogHost = getProperty(SYSLOG_HOST_PARAM, "localhost:514"); return createAppender(name, configuration, layout, facility, filter, syslogHost, level); } private Appender createAppender(final String name, final Log4j1Configuration configuration, Layout layout, String facility, final Filter filter, final String syslogHost, final String level) { Holder<String> host = new Holder<>(); Holder<Integer> port = new Holder<>(); resolveSyslogHost(syslogHost, host, port); org.apache.logging.log4j.core.Layout appenderLayout; if (layout instanceof LayoutWrapper) { appenderLayout = ((LayoutWrapper) layout).getLayout(); } else if (layout != null) { appenderLayout = new LayoutAdapter(layout); } else { appenderLayout = SyslogLayout.newBuilder() .setFacility(Facility.toFacility(facility)) .setConfiguration(configuration) .build(); } org.apache.logging.log4j.core.Filter fileFilter = buildFilters(level, filter); return new AppenderWrapper(SyslogAppender.newBuilder() .setName(name) .setConfiguration(configuration) .setLayout(appenderLayout) .setFilter(fileFilter) .withPort(port.get()) .withProtocol(Protocol.TCP) .withHost(host.get()) .build()); } private void resolveSyslogHost(String syslogHost, Holder<String> host, Holder<Integer> port) { int urlPort = -1; // // If not an unbracketed IPv6 address then // parse as a URL // String[] parts = syslogHost.split(":"); if (parts.length == 1) { host.set(parts[0]); port.set(SYSLOG_PORT); } else if (parts.length == 2) { host.set(parts[0]); port.set(Integer.parseInt(parts[1])); } else { LOGGER.warn("Invalid syslogHost setting: {}. Using default", syslogHost); host.set("localhost"); port.set(SYSLOG_PORT); } } }
⏎ org/apache/log4j/builders/appender/SyslogAppenderBuilder.java
Or download all of them as a single archive file:
File name: log4j-1.2-api-2.14.1-sources.jar File size: 168047 bytes Release date: 2021-03-06 Download
⇒ Source Code for Apache Log4j JMX GUI
⇐ Source Code for Apache Log4j Flume Appender
2015-11-17, 30408👍, 0💬
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