/*
 * Copyright 2012-2019 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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
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package org.springframework.boot.logging.log4j2;

import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.pattern.ConverterKeys;
import org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter;
import org.apache.logging.log4j.core.pattern.PatternConverter;
import org.apache.logging.log4j.core.pattern.ThrowablePatternConverter;

ThrowablePatternConverter that adds some additional whitespace around the stack trace.
Author:Vladimir Tsanev, Phillip Webb
Since:1.3.0
/** * {@link ThrowablePatternConverter} that adds some additional whitespace around the stack * trace. * * @author Vladimir Tsanev * @author Phillip Webb * @since 1.3.0 */
@Plugin(name = "ExtendedWhitespaceThrowablePatternConverter", category = PatternConverter.CATEGORY) @ConverterKeys({ "xwEx", "xwThrowable", "xwException" }) public final class ExtendedWhitespaceThrowablePatternConverter extends ThrowablePatternConverter { private final ExtendedThrowablePatternConverter delegate; private ExtendedWhitespaceThrowablePatternConverter(Configuration configuration, String[] options) { super("WhitespaceExtendedThrowable", "throwable", options, configuration); this.delegate = ExtendedThrowablePatternConverter.newInstance(configuration, options); } @Override public void format(LogEvent event, StringBuilder buffer) { if (event.getThrown() != null) { buffer.append(this.options.getSeparator()); this.delegate.format(event, buffer); buffer.append(this.options.getSeparator()); } }
Creates a new instance of the class. Required by Log4J2.
Params:
  • configuration – current configuration
  • options – pattern options, may be null. If first element is "short", only the first line of the throwable will be formatted.
Returns:a new WhitespaceThrowablePatternConverter
/** * Creates a new instance of the class. Required by Log4J2. * @param configuration current configuration * @param options pattern options, may be null. If first element is "short", only the * first line of the throwable will be formatted. * @return a new {@code WhitespaceThrowablePatternConverter} */
public static ExtendedWhitespaceThrowablePatternConverter newInstance(Configuration configuration, String[] options) { return new ExtendedWhitespaceThrowablePatternConverter(configuration, options); } }