1: <?php
 2: /**
 3:  * Licensed to the Apache Software Foundation (ASF) under one or more
 4:  * contributor license agreements. See the NOTICE file distributed with
 5:  * this work for additional information regarding copyright ownership.
 6:  * The ASF licenses this file to You under the Apache License, Version 2.0
 7:  * (the "License"); you may not use this file except in compliance with
 8:  * the License. You may obtain a copy of the License at
 9:  *
10:  *     http://www.apache.org/licenses/LICENSE-2.0
11:  *
12:  * Unless required by applicable law or agreed to in writing, software
13:  * distributed under the License is distributed on an "AS IS" BASIS,
14:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15:  * See the License for the specific language governing permissions and
16:  * limitations under the License.
17:  *
18:  * @package log4php
19:  */
20: 
21: /**
22:  * Returns the Mapped Diagnostic Context value corresponding to the given key.
23:  * 
24:  * Options:
25:  *  [0] the MDC key
26:  * 
27:  * @package log4php
28:  * @subpackage pattern
29:  * @version $Revision: 1326626 $
30:  * @since 2.3
31:  */
32: class LoggerPatternConverterMDC extends LoggerPatternConverter {
33: 
34:     private $key;
35: 
36:     public function activateOptions() {
37:         if (isset($this->option) && $this->option !== '') {
38:             $this->key = $this->option;
39:         }
40:     }
41:     
42:     public function convert(LoggerLoggingEvent $event) {
43:         if (isset($this->key)) {
44:             return $event->getMDC($this->key);
45:         } else {
46:             $buff = array();
47:             $map = $event->getMDCMap();
48:             foreach($map as $key => $value) {
49:                 $buff []= "$key=$value";
50:             }
51:             return implode(', ', $buff);
52:         }
53:     }
54: }
55: