Sample_testFilter.cpp - Log for C++翻訳 Wiki - Log for C++翻訳

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サンプル5 testFilter.cpp

　フィルター（log4cpp::Filter）を使ったサンプルです。

関連ファイル

• testFilter.cpp

ファイルの中身

testFilter.cpp

 #include <log4cpp/Filter.hh>
 #include <iostream>
 
 class TestFilter : public log4cpp::Filter {
     public:
     TestFilter() {};
     virtual ~TestFilter() {};
 
     protected:
     virtual log4cpp::Filter::Decision _decide(const log4cpp::LoggingEvent& event) {
         log4cpp::Filter::Decision decision = log4cpp::Filter::NEUTRAL;
 
         if (event.categoryName == "deny")
             decision = log4cpp::Filter::DENY;
         
         if (event.categoryName == "accept")
             decision = log4cpp::Filter::ACCEPT;
 
         return decision;
     };
 };
 
 
 class TestFilter2 : public log4cpp::Filter {
     public:
     TestFilter2() {};
     virtual ~TestFilter2() {};
 
     protected:
     virtual log4cpp::Filter::Decision _decide(const log4cpp::LoggingEvent& event) {
         log4cpp::Filter::Decision decision = log4cpp::Filter::NEUTRAL;
 
         if (event.ndc == "test")
             decision = log4cpp::Filter::DENY;
         
         return decision;
     };
 };
 
 int main(int argc, char** argv) {
     TestFilter filter;
 
     bool resultsOK = true;
     
     std::cout << "decision 1 (should be 1): " << filter.decide(log4cpp::LoggingEvent("accept", "bla", "ndc", log4cpp::Priority::INFO)) << std::endl;
 
     std::cout << "decision 2 (should be -1): " << filter.decide(log4cpp::LoggingEvent("deny", "bla", "ndc", log4cpp::Priority::INFO)) << std::endl;
 
     std::cout << "decision 3 (should be 0): " << filter.decide(log4cpp::LoggingEvent("neither", "bla", "ndc", log4cpp::Priority::INFO)) << std::endl;
 
     std::cout << "decision 4 (should be 0): " << filter.decide(log4cpp::LoggingEvent("neither", "bla", "test", log4cpp::Priority::INFO)) << std::endl;
 
     filter.setChainedFilter(new TestFilter2());
     
     std::cout << "decision 5 (should be 0): " << filter.decide(log4cpp::LoggingEvent("neither", "bla", "ndc", log4cpp::Priority::INFO)) << std::endl;
 
     std::cout << "decision 6 (should be -1): " << filter.decide(log4cpp::LoggingEvent("neither", "bla", "test", log4cpp::Priority::INFO)) << std::endl;
 
     return 0;
 }

実行結果例

　testFilter.cppをビルドし、実行した結果です。実行環境はLinux(Ubuntu 11.0)です。

stdout(標準出力):

decision 1 (should be 1): 1
decision 2 (should be -1): -1
decision 3 (should be 0): 0
decision 4 (should be 0): 0
decision 5 (should be 0): 0
decision 6 (should be -1): -1

Up: サンプル

Prev: サンプル4 testErrorCollision.cpp

Next: サンプル6 testFixedContextCategory.cpp