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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  package org.apache.logging.log4j.core.config;
18  
19  import java.util.concurrent.ConcurrentHashMap;
20  import java.util.concurrent.ConcurrentMap;
21  
22  import org.apache.logging.log4j.core.Appender;
23  import org.apache.logging.log4j.core.config.plugins.Plugin;
24  import org.apache.logging.log4j.core.config.plugins.PluginElement;
25  import org.apache.logging.log4j.core.config.plugins.PluginFactory;
26  
27  /**
28   * An Appender container.
29   */
30  @Plugin(name = "appenders", category = "Core")
31  public final class AppendersPlugin {
32  
33      private AppendersPlugin() {
34      }
35  
36      /**
37       * Create a Map of the Appenders.
38       * @param appenders An array of Appenders.
39       * @return The Appender Map.
40       */
41      @PluginFactory
42      public static ConcurrentMap<String, Appender> createAppenders(
43                  @PluginElement("Appenders") final Appender[] appenders) {
44  
45          final ConcurrentMap<String, Appender> map =
46              new ConcurrentHashMap<String, Appender>();
47  
48          for (final Appender appender : appenders) {
49                  map.put(appender.getName(), appender);
50          }
51  
52          return map;
53      }
54  }