<commit_before>/*
 * Copyright 2012-2018 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
 *
 *      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.springframework.boot.logging;

import java.util.logging.ConsoleHandler;
import java.util.logging.Handler;
import java.util.logging.LogManager;
import java.util.logging.Logger;

import org.slf4j.bridge.SLF4JBridgeHandler;

import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;

/**
 * Abstract base class for {@link LoggingSystem} implementations that utilize SLF4J.
 *
 * @author <NAME>
 * @since 1.2.0
 */
public abstract class Slf4JLoggingSystem extends AbstractLoggingSystem {

	private static final String BRIDGE_HANDLER = "org.slf4j.bridge.SLF4JBridgeHandler";

	public Slf4JLoggingSystem(ClassLoader classLoader) {
		super(classLoader);
	}

	@Override
	public void beforeInitialize() {
		super.beforeInitialize();
		configureJdkLoggingBridgeHandler();
	}

	@Override
	public void cleanUp() {
		if (isBridgeHandlerAvailable()) {
			removeJdkLoggingBridgeHandler();
			reinstateConsoleHandlerIfNecessary();
		}
	}

	@Override
	protected void loadConfiguration(LoggingInitializationContext initializationContext,
			String location, LogFile logFile) {
		Assert.notNull(location, "Location must not be null");
		if (initializationContext != null) {
			applySystemProperties(initializationContext.getEnvironment(), logFile);
		}
	}

	private void configureJdkLoggingBridgeHandler() {
		try {
			if (isBridgeJulIntoSlf4j()) {
				removeJdkLoggingBridgeHandler();
				SLF4JBridgeHandler.install();
			}
		}
		catch (Throwable ex) {
			// Ignore. No java.util.logging bridge is installed.
		}
	}

	/**
	 * Return whether bridging JUL into SLF4J or not.
	 * @return whether bridging JUL into SLF4J or not
	 * @since 2.0.4
	 */
	protected final boolean isBridgeJulIntoSlf4j() {
		return isBridgeHandlerAvailable() && isJulUsingItsDefaultConfiguration();
	}

	protected final boolean isBridgeHandlerAvailable() {
		return ClassUtils.isPresent(BRIDGE_HANDLER, getClassLoader());
	}

	private boolean isJulUsingItsDefaultConfiguration() {
		Logger rootLogger = LogManager.getLogManager().getLogger("");
		Handler[] handlers = rootLogger.getHandlers();
		return handlers.length == 1 && handlers[0] instanceof ConsoleHandler;
	}

	private void removeJdkLoggingBridgeHandler() {
		try {
			removeDefaultRootHandler();
			SLF4JBridgeHandler.uninstall();
		}
		catch (Throwable ex) {
			// Ignore and continue
		}
	}

	private void removeDefaultRootHandler() {
		try {
			Logger rootLogger = LogManager.getLogManager().getLogger("");
			Handler[] handlers = rootLogger.getHandlers();
			if (handlers.length == 1 && handlers[0] instanceof ConsoleHandler) {
				rootLogger.removeHandler(handlers[0]);
			}
		}
		catch (Throwable ex) {
			// Ignore and continue
		}
	}

	private void reinstateConsoleHandlerIfNecessary() {
		Logger rootLogger = LogManager.getLogManager().getLogger("");
		if (rootLogger.getHandlers().length == 0) {
			rootLogger.addHandler(new ConsoleHandler());
		}
	}

}<commit_msg>Avoid installing unwanted ConsoleHandler when cleaning up<commit_after>/*
 * Copyright 2012-2018 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
 *
 *      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.springframework.boot.logging;

import java.util.logging.ConsoleHandler;
import java.util.logging.Handler;
import java.util.logging.LogManager;
import java.util.logging.Logger;

import org.slf4j.bridge.SLF4JBridgeHandler;

import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;

/**
 * Abstract base class for {@link LoggingSystem} implementations that utilize SLF4J.
 *
 * @author <NAME>
 * @since 1.2.0
 */
public abstract class Slf4JLoggingSystem extends AbstractLoggingSystem {

	private static final String BRIDGE_HANDLER = "org.slf4j.bridge.SLF4JBridgeHandler";

	public Slf4JLoggingSystem(ClassLoader classLoader) {
		super(classLoader);
	}

	@Override
	public void beforeInitialize() {
		super.beforeInitialize();
		configureJdkLoggingBridgeHandler();
	}

	@Override
	public void cleanUp() {
		if (isBridgeHandlerAvailable()) {
			removeJdkLoggingBridgeHandler();
		}
	}

	@Override
	protected void loadConfiguration(LoggingInitializationContext initializationContext,
			String location, LogFile logFile) {
		Assert.notNull(location, "Location must not be null");
		if (initializationContext != null) {
			applySystemProperties(initializationContext.getEnvironment(), logFile);
		}
	}

	private void configureJdkLoggingBridgeHandler() {
		try {
			if (isBridgeJulIntoSlf4j()) {
				removeJdkLoggingBridgeHandler();
				SLF4JBridgeHandler.install();
			}
		}
		catch (Throwable ex) {
			// Ignore. No java.util.logging bridge is installed.
		}
	}

	/**
	 * Return whether bridging JUL into SLF4J or not.
	 * @return whether bridging JUL into SLF4J or not
	 * @since 2.0.4
	 */
	protected final boolean isBridgeJulIntoSlf4j() {
		return isBridgeHandlerAvailable() && isJulUsingASingleConsoleHandlerAtMost();
	}

	protected final boolean isBridgeHandlerAvailable() {
		return ClassUtils.isPresent(BRIDGE_HANDLER, getClassLoader());
	}

	private boolean isJulUsingASingleConsoleHandlerAtMost() {
		Logger rootLogger = LogManager.getLogManager().getLogger("");
		Handler[] handlers = rootLogger.getHandlers();
		return handlers.length == 0
				|| (handlers.length == 1 && handlers[0] instanceof ConsoleHandler);
	}

	private void removeJdkLoggingBridgeHandler() {
		try {
			removeDefaultRootHandler();
			SLF4JBridgeHandler.uninstall();
		}
		catch (Throwable ex) {
			// Ignore and continue
		}
	}

	private void removeDefaultRootHandler() {
		try {
			Logger rootLogger = LogManager.getLogManager().getLogger("");
			Handler[] handlers = rootLogger.getHandlers();
			if (handlers.length == 1 && handlers[0] instanceof ConsoleHandler) {
				rootLogger.removeHandler(handlers[0]);
			}
		}
		catch (Throwable ex) {
			// Ignore and continue
		}
	}

}
{'fraction_non_alphanumeric': 0.09893586425079091, 'fraction_numerical': 0.010641357492090883, 'mean_word_length': 4.546251993620415, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4945858', 'n_tokens_mistral': 2248, 'n_tokens_neox': 2001, 'n_words': 548}