1 | /*
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2 | * Licensed to the Apache Software Foundation (ASF) under one or more
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3 | * contributor license agreements. See the NOTICE file distributed with
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4 | * this work for additional information regarding copyright ownership.
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5 | * The ASF licenses this file to You under the Apache License, Version 2.0
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6 | * (the "License"); you may not use this file except in compliance with
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7 | * the License. You may obtain a copy of the License at
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8 | *
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9 | * http://www.apache.org/licenses/LICENSE-2.0
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10 | *
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11 | * Unless required by applicable law or agreed to in writing, software
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12 | * distributed under the License is distributed on an "AS IS" BASIS,
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 | * See the License for the specific language governing permissions and
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15 | * limitations under the License.
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16 | */
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17 |
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18 | #ifndef _LOG4CXX_FILTER_ANDFILTER_H
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19 | #define _LOG4CXX_FILTER_ANDFILTER_H
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20 |
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21 | #if defined(_MSC_VER)
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22 | #pragma warning ( push )
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23 | #pragma warning ( disable: 4231 4251 4275 4786 )
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24 | #endif
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25 |
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26 |
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27 | #include <log4cxx/spi/filter.h>
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28 |
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29 | namespace log4cxx
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30 | {
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31 | namespace filter
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32 | {
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33 |
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34 | /**
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35 | * A filter that 'and's the results of any number of contained filters together.
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36 | *
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37 | * For the filter to process events, all contained filters must return Filter::ACCEPT.
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38 | *
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39 | * If the contained filters do not return Filter::ACCEPT, Filter::NEUTRAL is returned.
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40 | *
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41 | * If acceptOnMatch is set to true, Filter::ACCEPT is returned.
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42 | * If acceptOnMatch is set to false, Filter::DENY is returned.
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43 | *
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44 | * Here is an example config that will accept only events that contain BOTH
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45 | * a DEBUG level AND 'test' in the message:
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46 | *
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47 | *<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
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48 | * <filter class="org.apache.log4j.filter.AndFilter">
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49 | * <filter class="org.apache.log4j.filter.LevelMatchFilter">
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50 | * <param name="levelToMatch" value="DEBUG" />
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51 | * <param name="acceptOnMatch" value="true" />
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52 | * </filter>
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53 | * <filter class="org.apache.log4j.filter.StringMatchFilter">
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54 | * <param name="stringToMatch" value="test" />
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55 | * <param name="acceptOnMatch" value="true" />
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56 | * </filter>
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57 | * <param name="acceptOnMatch" value="false"/>
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58 | * </filter>
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59 | * <filter class="org.apache.log4j.filter.DenyAllFilter"/>
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60 | *<layout class="org.apache.log4j.SimpleLayout"/>
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61 | *</appender>
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62 | *
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63 | * To accept all events EXCEPT those events that contain a
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64 | * DEBUG level and 'test' in the message:
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65 | * change the AndFilter's acceptOnMatch param to false and remove the DenyAllFilter
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66 | *
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67 | * NOTE: If you are defining a filter that is only relying on logging event content
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68 | * (no external or filter-managed state), you could opt instead
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69 | * to use an ExpressionFilter with one of the following expressions:
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70 | *
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71 | * LEVEL == DEBUG && MSG ~= 'test'
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72 | * or
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73 | * ! ( LEVEL == DEBUG && MSG ~= 'test' )
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74 | *
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75 | *
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76 | */
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77 | class LOG4CXX_EXPORT AndFilter:public log4cxx::spi::Filter
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78 | {
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79 | private:
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80 | log4cxx::spi::FilterPtr headFilter;
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81 | log4cxx::spi::FilterPtr tailFilter;
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82 | bool acceptOnMatch;
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83 | AndFilter(const AndFilter &);
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84 | AndFilter & operator=(const AndFilter &);
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85 |
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86 |
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87 | public:
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88 | DECLARE_LOG4CXX_OBJECT(AndFilter)
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89 | BEGIN_LOG4CXX_CAST_MAP()
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90 | LOG4CXX_CAST_ENTRY(log4cxx::spi::Filter)
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91 | END_LOG4CXX_CAST_MAP()
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92 |
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93 | AndFilter();
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94 |
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95 | void addFilter(const log4cxx::spi::FilterPtr & filter);
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96 |
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97 | void setAcceptOnMatch(bool acceptOnMatch);
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98 |
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99 | FilterDecision decide(const spi::LoggingEventPtr & event) const;
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100 | };
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101 |
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102 | }
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103 | }
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104 |
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105 | #if defined(_MSC_VER)
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106 | #pragma warning ( pop )
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107 | #endif
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108 |
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109 | #endif
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