     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: