| /* |
| * 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.selector; |
| |
| import java.net.URI; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.logging.log4j.core.LoggerContext; |
| |
| /** |
| * Interface used to locate a LoggerContext. |
| */ |
| public interface ContextSelector { |
| |
| long DEFAULT_STOP_TIMEOUT = 50; |
| |
| /** |
| * Shuts down the LoggerContext. |
| * @param fqcn The fully qualified class name of the caller. |
| * @param loader The ClassLoader to use or null. |
| * @param currentContext If true returns the current Context, if false returns the Context appropriate |
| * @param allContexts if true all LoggerContexts that can be located will be shutdown. |
| * @since 2.13.0 |
| */ |
| default void shutdown(final String fqcn, final ClassLoader loader, final boolean currentContext, |
| final boolean allContexts) { |
| if (hasContext(fqcn, loader, currentContext)) { |
| getContext(fqcn, loader, currentContext).stop(DEFAULT_STOP_TIMEOUT, TimeUnit.MILLISECONDS); |
| } |
| } |
| |
| /** |
| * Checks to see if a LoggerContext is installed. The default implementation returns false. |
| * @param fqcn The fully qualified class name of the caller. |
| * @param loader The ClassLoader to use or null. |
| * @param currentContext If true returns the current Context, if false returns the Context appropriate |
| * for the caller if a more appropriate Context can be determined. |
| * @return true if a LoggerContext has been installed, false otherwise. |
| * @since 2.13.0 |
| */ |
| default boolean hasContext(String fqcn, ClassLoader loader, boolean currentContext) { |
| return false; |
| } |
| |
| /** |
| * Returns the LoggerContext. |
| * @param fqcn The fully qualified class name of the caller. |
| * @param loader ClassLoader to use or null. |
| * @param currentContext If true returns the current Context, if false returns the Context appropriate |
| * for the caller if a more appropriate Context can be determined. |
| * @return The LoggerContext. |
| */ |
| LoggerContext getContext(String fqcn, ClassLoader loader, boolean currentContext); |
| |
| /** |
| * Returns the LoggerContext. |
| * @param fqcn The fully qualified class name of the caller. |
| * @param loader ClassLoader to use or null. |
| * @param currentContext If true returns the current Context, if false returns the Context appropriate |
| * for the caller if a more appropriate Context can be determined. |
| * @param configLocation The location of the configuration for the LoggerContext. |
| * @return The LoggerContext. |
| */ |
| LoggerContext getContext(String fqcn, ClassLoader loader, boolean currentContext, URI configLocation); |
| |
| /** |
| * Returns a List of all the available LoggerContexts. |
| * @return The List of LoggerContexts. |
| */ |
| List<LoggerContext> getLoggerContexts(); |
| |
| /** |
| * Remove any references to the LoggerContext. |
| * @param context The context to remove. |
| */ |
| void removeContext(LoggerContext context); |
| } |