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Source Code for Apache Log4j Core Implementation
Apache Log4j Core Implementation provides the functional components of the logging system. Users are free to create their own plugins and include them in the logging configuration. Apache Log4j Core is a required module to use Apache Log4j.
Bytecode (Java 8) for Apache Log4j Core Implementation is provided in a separate JAR file like log4j-core-2.14.1.jar.
Source Code files for Apache Log4j API 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 Core Implementation 2.14.1 below.
✍: FYIcenter.com
⏎ org/apache/logging/log4j/core/appender/ScriptAppenderSelector.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.logging.log4j.core.appender; import java.io.Serializable; import java.util.Objects; import javax.script.Bindings; import org.apache.logging.log4j.core.Appender; import org.apache.logging.log4j.core.Core; import org.apache.logging.log4j.core.Filter; import org.apache.logging.log4j.core.Layout; import org.apache.logging.log4j.core.LogEvent; import org.apache.logging.log4j.core.config.Configuration; import org.apache.logging.log4j.core.config.Property; import org.apache.logging.log4j.core.config.plugins.Plugin; import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute; import org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory; import org.apache.logging.log4j.core.config.plugins.PluginConfiguration; import org.apache.logging.log4j.core.config.plugins.PluginElement; import org.apache.logging.log4j.core.config.plugins.validation.constraints.Required; import org.apache.logging.log4j.core.script.AbstractScript; import org.apache.logging.log4j.core.script.ScriptManager; @Plugin(name = "ScriptAppenderSelector", category = Core.CATEGORY_NAME, elementType = Appender.ELEMENT_TYPE, printObject = true) public class ScriptAppenderSelector extends AbstractAppender { /** * Builds an appender. */ public static final class Builder implements org.apache.logging.log4j.core.util.Builder<Appender> { @PluginElement("AppenderSet") @Required private AppenderSet appenderSet; @PluginConfiguration @Required private Configuration configuration; @PluginBuilderAttribute @Required private String name; @PluginElement("Script") @Required private AbstractScript script; @Override public Appender build() { if (name == null) { LOGGER.error("Name missing."); return null; } if (script == null) { LOGGER.error("Script missing for ScriptAppenderSelector appender {}", name); return null; } if (appenderSet == null) { LOGGER.error("AppenderSet missing for ScriptAppenderSelector appender {}", name); return null; } if (configuration == null) { LOGGER.error("Configuration missing for ScriptAppenderSelector appender {}", name); return null; } final ScriptManager scriptManager = configuration.getScriptManager(); scriptManager.addScript(script); final Bindings bindings = scriptManager.createBindings(script); LOGGER.debug("ScriptAppenderSelector '{}' executing {} '{}': {}", name, script.getLanguage(), script.getName(), script.getScriptText()); final Object object = scriptManager.execute(script.getName(), bindings); final String actualAppenderName = Objects.toString(object, null); LOGGER.debug("ScriptAppenderSelector '{}' selected '{}'", name, actualAppenderName); return appenderSet.createAppender(actualAppenderName, name); } public AppenderSet getAppenderSet() { return appenderSet; } public Configuration getConfiguration() { return configuration; } public String getName() { return name; } public AbstractScript getScript() { return script; } public Builder withAppenderNodeSet(@SuppressWarnings("hiding") final AppenderSet appenderSet) { this.appenderSet = appenderSet; return this; } public Builder withConfiguration(@SuppressWarnings("hiding") final Configuration configuration) { this.configuration = configuration; return this; } public Builder withName(@SuppressWarnings("hiding") final String name) { this.name = name; return this; } public Builder withScript(@SuppressWarnings("hiding") final AbstractScript script) { this.script = script; return this; } } @PluginBuilderFactory public static Builder newBuilder() { return new Builder(); } private ScriptAppenderSelector(final String name, final Filter filter, final Layout<? extends Serializable> layout, final Property[] properties) { super(name, filter, layout, true, Property.EMPTY_ARRAY); } @Override public void append(final LogEvent event) { // Do nothing: This appender is only used to discover and build another appender } }
⏎ org/apache/logging/log4j/core/appender/ScriptAppenderSelector.java
Or download all of them as a single archive file:
File name: log4j-core-2.14.1-sources.jar File size: 1281358 bytes Release date: 2021-03-06 Download
⇒ Source Code for Apache Log4j JDK Logging Adapter
⇐ Source Code for Apache Log4j API
2015-11-03, 81946👍, 0💬
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