001/** 002 * Logback: the reliable, generic, fast and flexible logging framework. 003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved. 004 * 005 * This program and the accompanying materials are dual-licensed under 006 * either the terms of the Eclipse Public License v1.0 as published by 007 * the Eclipse Foundation 008 * 009 * or (per the licensee's choosing) 010 * 011 * under the terms of the GNU Lesser General Public License version 2.1 012 * as published by the Free Software Foundation. 013 */ 014package ch.qos.logback.classic.spi; 015 016import ch.qos.logback.classic.LoggerContext; 017import ch.qos.logback.core.Context; 018import ch.qos.logback.core.spi.ContextAwareBase; 019 020public class LoggerContextAwareBase extends ContextAwareBase implements LoggerContextAware { 021 022 /** 023 * Set the owning context. The owning context cannot be set more than once. 024 */ 025 public void setLoggerContext(LoggerContext context) { 026 super.setContext(context); 027 } 028 029 public void setContext(Context context) { 030 // check that the context is of type LoggerContext. Otherwise, throw an 031 // exception 032 // Context == null is a degenerate case but nonetheless permitted. 033 if (context instanceof LoggerContext || context == null) { 034 super.setContext(context); 035 } else { 036 throw new IllegalArgumentException( 037 "LoggerContextAwareBase only accepts contexts of type c.l.classic.LoggerContext"); 038 } 039 } 040 041 /** 042 * Return the {@link LoggerContext} this component is attached to. 043 * 044 * @return The owning LoggerContext 045 */ 046 public LoggerContext getLoggerContext() { 047 return (LoggerContext) context; 048 } 049 050}