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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.config.plugins.visitors;
19  
20  import java.util.Map;
21  
22  import org.apache.logging.log4j.core.LogEvent;
23  import org.apache.logging.log4j.core.config.Configuration;
24  import org.apache.logging.log4j.core.config.Node;
25  import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
26  import org.apache.logging.log4j.core.util.NameUtil;
27  
28  /**
29   * PluginVisitor implementation for {@link PluginAttribute}.
30   */
31  public class PluginAttributeVisitor extends AbstractPluginVisitor<PluginAttribute> {
32      public PluginAttributeVisitor() {
33          super(PluginAttribute.class);
34      }
35  
36      @Override
37      public Object visit(final Configuration configuration, final Node node, final LogEvent event,
38                          final StringBuilder log) {
39          final String name = this.annotation.value();
40          final Map<String, String> attributes = node.getAttributes();
41          final String rawValue = removeAttributeValue(attributes, name, this.aliases);
42          final String replacedValue = this.substitutor.replace(event, rawValue);
43          final Object defaultValue = findDefaultValue(event);
44          final Object value = convert(replacedValue, defaultValue);
45          final Object debugValue = this.annotation.sensitive() ? NameUtil.md5(value + this.getClass().getName()) : value;
46          log.append(name).append("=\"").append(debugValue).append('"');
47          return value;
48      }
49  
50      private Object findDefaultValue(final LogEvent event) {
51          if (this.conversionType == int.class || this.conversionType == Integer.class) {
52              return this.annotation.defaultInt();
53          }
54          if (this.conversionType == long.class || this.conversionType == Long.class) {
55              return this.annotation.defaultLong();
56          }
57          if (this.conversionType == boolean.class || this.conversionType == Boolean.class) {
58              return this.annotation.defaultBoolean();
59          }
60          if (this.conversionType == float.class || this.conversionType == Float.class) {
61              return this.annotation.defaultFloat();
62          }
63          if (this.conversionType == double.class || this.conversionType == Double.class) {
64              return this.annotation.defaultDouble();
65          }
66          if (this.conversionType == byte.class || this.conversionType == Byte.class) {
67              return this.annotation.defaultByte();
68          }
69          if (this.conversionType == char.class || this.conversionType == Character.class) {
70              return this.annotation.defaultChar();
71          }
72          if (this.conversionType == short.class || this.conversionType == Short.class) {
73              return this.annotation.defaultShort();
74          }
75          if (this.conversionType == Class.class) {
76              return this.annotation.defaultClass();
77          }
78          return this.substitutor.replace(event, this.annotation.defaultString());
79      }
80  }