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}