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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements. See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache license, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License. You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the license for the specific language governing permissions and
15   * limitations under the license.
16   */
17  
18  package org.apache.logging.log4j.core.util;
19  
20  import javax.naming.Context;
21  import javax.naming.NamingException;
22  
23  /**
24   * Helper class for closing JNDI resources.
25   *
26   * This class is separate from {@link Closer} because JNDI is not in Android.
27   */
28  public final class JndiCloser {
29  
30      private JndiCloser() {
31      }
32  
33      /**
34       * Closes the specified {@code Context}.
35       *
36       * @param context the JNDI Context to close, may be {@code null}
37       * @throws NamingException if a problem occurred closing the specified JNDI Context
38       */
39      public static void close(final Context context) throws NamingException {
40          if (context != null) {
41              context.close();
42          }
43      }
44  
45      /**
46       * Closes the specified {@code Context}, ignoring any exceptions thrown by the close operation.
47       *
48       * @param context the JNDI Context to close, may be {@code null}
49       */
50      public static boolean closeSilently(final Context context) {
51          try {
52              close(context);
53              return true;
54          } catch (final NamingException ignored) {
55              // ignored
56              return false;
57          }
58      }
59  
60  }