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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.classic.spi;
15  
16  import ch.qos.logback.classic.LoggerContext;
17  import ch.qos.logback.core.Context;
18  import ch.qos.logback.core.spi.ContextAwareBase;
19  
20  public class LoggerContextAwareBase extends ContextAwareBase implements LoggerContextAware {
21  
22      /**
23       * Set the owning context. The owning context cannot be set more than once.
24       */
25      public void setLoggerContext(LoggerContext context) {
26          super.setContext(context);
27      }
28  
29      public void setContext(Context context) {
30          // check that the context is of type LoggerContext. Otherwise, throw an
31          // exception
32          // Context == null is a degenerate case but nonetheless permitted.
33          if (context instanceof LoggerContext || context == null) {
34              super.setContext(context);
35          } else {
36              throw new IllegalArgumentException(
37                      "LoggerContextAwareBase only accepts contexts of type c.l.classic.LoggerContext");
38          }
39      }
40  
41      /**
42       * Return the {@link LoggerContext} this component is attached to.
43       * 
44       * @return The owning LoggerContext
45       */
46      public LoggerContext getLoggerContext() {
47          return (LoggerContext) context;
48      }
49  
50  }