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The Apache Log4j Implementation
/*
* 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.config.builder.impl;
import java.lang.reflect.Constructor;
import java.util.List;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.Filter;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.ConfigurationException;
import org.apache.logging.log4j.core.config.ConfigurationSource;
import org.apache.logging.log4j.core.config.LoggerConfig;
import org.apache.logging.log4j.core.config.builder.api.AppenderComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.AppenderRefComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.Component;
import org.apache.logging.log4j.core.config.builder.api.ComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder;
import org.apache.logging.log4j.core.config.builder.api.CustomLevelComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.FilterComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.LayoutComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.LoggerComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.RootLoggerComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.ScriptComponentBuilder;
import org.apache.logging.log4j.core.config.builder.api.ScriptFileComponentBuilder;
/**
* @param The BuiltConfiguration type.
* @since 2.4
*/
public class DefaultConfigurationBuilder implements ConfigurationBuilder {
private final Component root = new Component();
private Component loggers;
private Component appenders;
private Component filters;
private Component properties;
private Component customLevels;
private Component scripts;
private final Class clazz;
private ConfigurationSource source;
private int monitorInterval = 0;
private Level level = null;
private String verbosity = null;
private String packages = null;
private String shutdownFlag = null;
private String advertiser = null;
private String name = null;
@SuppressWarnings("unchecked")
public DefaultConfigurationBuilder() {
this((Class) BuiltConfiguration.class);
root.addAttribute("name", "Built");
}
public DefaultConfigurationBuilder(final Class clazz) {
if (clazz == null) {
throw new IllegalArgumentException("A Configuration class must be provided");
}
this.clazz = clazz;
final List components = root.getComponents();
properties = new Component("Properties");
components.add(properties);
scripts = new Component("Scripts");
components.add(scripts);
customLevels = new Component("CustomLevels");
components.add(customLevels);
filters = new Component("Filters");
components.add(filters);
appenders = new Component("Appenders");
components.add(appenders);
loggers = new Component("Loggers");
components.add(loggers);
}
protected ConfigurationBuilder add(final Component parent, final ComponentBuilder builder) {
parent.getComponents().add(builder.build());
return this;
}
@Override
public ConfigurationBuilder add(final AppenderComponentBuilder builder) {
return add(appenders, builder);
}
@Override
public ConfigurationBuilder add(final CustomLevelComponentBuilder builder) {
return add(customLevels, builder);
}
@Override
public ConfigurationBuilder add(final FilterComponentBuilder builder) {
return add(filters, builder);
}
@Override
public ConfigurationBuilder add(final ScriptComponentBuilder builder) {
return add(scripts, builder);
}
@Override
public ConfigurationBuilder add(final ScriptFileComponentBuilder builder) {
return add(scripts, builder);
}
@Override
public ConfigurationBuilder add(final LoggerComponentBuilder builder) {
return add(loggers, builder);
}
@Override
public ConfigurationBuilder add(final RootLoggerComponentBuilder builder) {
for (final Component c : loggers.getComponents()) {
if (c.getPluginType().equals(LoggerConfig.ROOT)) {
throw new ConfigurationException("Root Logger was previously defined");
}
}
return add(loggers, builder);
}
@Override
public ConfigurationBuilder addProperty(final String key, final String value) {
properties.addComponent(newComponent(key, "Property", value).build());
return this;
}
@Override
public T build() {
return build(true);
}
@Override
public T build(final boolean initialize) {
T configuration;
try {
if (source == null) {
source = ConfigurationSource.NULL_SOURCE;
}
final Constructor constructor = clazz.getConstructor(ConfigurationSource.class, Component.class);
configuration = constructor.newInstance(source, root);
configuration.setMonitorInterval(monitorInterval);
configuration.getRootNode().getAttributes().putAll(root.getAttributes());
if (name != null) {
configuration.setName(name);
}
if (level != null) {
configuration.getStatusConfiguration().withStatus(level);
}
if (verbosity != null) {
configuration.getStatusConfiguration().withVerbosity(verbosity);
}
if (packages != null) {
configuration.setPluginPackages(packages);
}
if (shutdownFlag != null) {
configuration.setShutdownHook(shutdownFlag);
}
if (advertiser != null) {
configuration.createAdvertiser(advertiser, source);
}
} catch (final Exception ex) {
throw new IllegalArgumentException("Invalid Configuration class specified", ex);
}
configuration.getStatusConfiguration().initialize();
if (initialize) {
configuration.initialize();
}
return configuration;
}
@Override
public ScriptComponentBuilder newScript(final String name, final String language, final String text) {
return new DefaultScriptComponentBuilder(this, name, language, text);
}
@Override
public ScriptFileComponentBuilder newScriptFile(final String path) {
return new DefaultScriptFileComponentBuilder(this, path, path);
}
@Override
public ScriptFileComponentBuilder newScriptFile(final String name, final String path) {
return new DefaultScriptFileComponentBuilder(this, name, path);
}
@Override
public AppenderComponentBuilder newAppender(final String name, final String type) {
return new DefaultAppenderComponentBuilder(this, name, type);
}
@Override
public AppenderRefComponentBuilder newAppenderRef(final String ref) {
return new DefaultAppenderRefComponentBuilder(this, ref);
}
@Override
public LoggerComponentBuilder newAsyncLogger(final String name, final Level level) {
return new DefaultLoggerComponentBuilder(this, name, level.toString(), "AsyncLogger", false);
}
@Override
public LoggerComponentBuilder newAsyncLogger(final String name, final Level level, final boolean includeLocation) {
return new DefaultLoggerComponentBuilder(this, name, level.toString(), "AsyncLogger", includeLocation);
}
@Override
public LoggerComponentBuilder newAsyncLogger(final String name, final String level) {
return new DefaultLoggerComponentBuilder(this, name, level, "AsyncLogger", false);
}
@Override
public LoggerComponentBuilder newAsyncLogger(final String name, final String level, final boolean includeLocation) {
return new DefaultLoggerComponentBuilder(this, name, level, "AsyncLogger");
}
@Override
public RootLoggerComponentBuilder newAsyncRootLogger(final Level level) {
return new DefaultRootLoggerComponentBuilder(this, level.toString(), "AsyncRoot", false);
}
@Override
public RootLoggerComponentBuilder newAsyncRootLogger(final Level level, final boolean includeLocation) {
return new DefaultRootLoggerComponentBuilder(this, level.toString(), "AsyncRoot", includeLocation);
}
@Override
public RootLoggerComponentBuilder newAsyncRootLogger(final String level) {
return new DefaultRootLoggerComponentBuilder(this, level, "AsyncRoot", false);
}
@Override
public RootLoggerComponentBuilder newAsyncRootLogger(final String level, final boolean includeLocation) {
return new DefaultRootLoggerComponentBuilder(this, level, "AsyncRoot", includeLocation);
}
@Override
public > ComponentBuilder newComponent(final String type) {
return new DefaultComponentBuilder<>(this, type);
}
@Override
public > ComponentBuilder newComponent(final String name, final String type) {
return new DefaultComponentBuilder<>(this, name, type);
}
@Override
public > ComponentBuilder newComponent(final String name, final String type,
final String value) {
return new DefaultComponentBuilder<>(this, name, type, value);
}
@Override
public CustomLevelComponentBuilder newCustomLevel(final String name, final int level) {
return new DefaultCustomLevelComponentBuilder(this, name, level);
}
@Override
public FilterComponentBuilder newFilter(final String type, final Filter.Result onMatch,
final Filter.Result onMisMatch) {
return new DefaultFilterComponentBuilder(this, type, onMatch.name(), onMisMatch.name());
}
@Override
public FilterComponentBuilder newFilter(final String type, final String onMatch, final String onMisMatch) {
return new DefaultFilterComponentBuilder(this, type, onMatch, onMisMatch);
}
@Override
public LayoutComponentBuilder newLayout(final String type) {
return new DefaultLayoutComponentBuilder(this, type);
}
@Override
public LoggerComponentBuilder newLogger(final String name, final Level level) {
return new DefaultLoggerComponentBuilder(this, name, level.toString(), true);
}
@Override
public LoggerComponentBuilder newLogger(final String name, final Level level, final boolean includeLocation) {
return new DefaultLoggerComponentBuilder(this, name, level.toString(), includeLocation);
}
@Override
public LoggerComponentBuilder newLogger(final String name, final String level) {
return new DefaultLoggerComponentBuilder(this, name, level, true);
}
@Override
public LoggerComponentBuilder newLogger(final String name, final String level, final boolean includeLocation) {
return new DefaultLoggerComponentBuilder(this, name, level, includeLocation);
}
@Override
public RootLoggerComponentBuilder newRootLogger(final Level level) {
return new DefaultRootLoggerComponentBuilder(this, level.toString(), true);
}
@Override
public RootLoggerComponentBuilder newRootLogger(final Level level, final boolean includeLocation) {
return new DefaultRootLoggerComponentBuilder(this, level.toString(), includeLocation);
}
@Override
public RootLoggerComponentBuilder newRootLogger(final String level) {
return new DefaultRootLoggerComponentBuilder(this, level, true);
}
@Override
public RootLoggerComponentBuilder newRootLogger(final String level, final boolean includeLocation) {
return new DefaultRootLoggerComponentBuilder(this, level, includeLocation);
}
@Override
public ConfigurationBuilder setAdvertiser(final String advertiser) {
this.advertiser = advertiser;
return this;
}
/**
* Set the name of the configuration.
*
* @param name the name of the {@link Configuration}. By default is {@code "Assembled"}.
* @return this builder instance
*/
@Override
public ConfigurationBuilder setConfigurationName(final String name) {
this.name = name;
return this;
}
/**
* Set the ConfigurationSource.
*
* @param configurationSource the {@link ConfigurationSource}
* @return this builder instance
*/
@Override
public ConfigurationBuilder setConfigurationSource(final ConfigurationSource configurationSource) {
source = configurationSource;
return this;
}
@Override
public ConfigurationBuilder setMonitorInterval(final String intervalSeconds) {
monitorInterval = Integer.parseInt(intervalSeconds);
return this;
}
@Override
public ConfigurationBuilder setPackages(final String packages) {
this.packages = packages;
return this;
}
@Override
public ConfigurationBuilder setShutdownHook(final String flag) {
this.shutdownFlag = flag;
return this;
}
@Override
public ConfigurationBuilder setStatusLevel(final Level level) {
this.level = level;
return this;
}
@Override
public ConfigurationBuilder setVerbosity(final String verbosity) {
this.verbosity = verbosity;
return this;
}
@Override
public ConfigurationBuilder addRootProperty(final String key, final String value) {
root.getAttributes().put(key, value);
return this;
}
}