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==== サンプル12 testProperties.cpp ====
　[Properties log4cppの設定ファイル]がどのように解析されるかを知ることができるサンプルです。

===== 関連ファイル =====
 * testProperties.cpp 
 * log4cpp.properties

===== ファイルの中身 =====
testProperties.cpp[[BR]]
{{{ code cpp
#include "Properties.hh"
#include <iostream>
#include <fstream>

int main(int argc, char** argv) {
    log4cpp::Properties properties;
    std::string inFile = (argc > 1) ? argv[1] : "log4cpp.properties";  
    std::ifstream in(inFile.c_str());

    properties.load(in);
    properties.save(std::cout);
}
}}}


log4cpp.properties[[BR]]
{{{
# Set root category priority to DEBUG and its only appender to A1.
log4j.rootCategory=ERROR, A4

# categories for Board Control
log4j.category.BoardControl=INFO, A4
log4j.category.BoardControl.additivity=false

# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.BasicLayout

log4j.appender.A2=org.apache.log4j.RemoteSyslogAppender
log4j.appender.A2.syslogName=log4cppApp
log4j.appender.A2.syslogHost=localhost
log4j.appender.A2.facility=-1
log4j.appender.A2.portNumber=-1
log4j.appender.A2.layout=org.apache.log4j.BasicLayout

log4cpp.appender.A3=org.apache.log4j.Win32DebugAppender
log4cpp.appender.A3.layout=org.apache.log4j.BasicLayout

appender.A4=org.apache.log4j.FileAppender
appender.A4.fileName=smas2.log
appender.A4.layout=org.apache.log4j.BasicLayout
}}}

===== 実行結果例 =====
　testProperties.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):
{{{
priority debug(700): DEBUG
priority debug(700): 700
priority debug(700): 700
caught unknown priority name: '700arghh'
takashi@takashi-virtual-machine:/mnt/hgfs/share/log4cpp/tests$ ./testProperties
appender.A1=org.apache.log4j.ConsoleAppender
appender.A1.layout=org.apache.log4j.BasicLayout
appender.A2=org.apache.log4j.RemoteSyslogAppender
appender.A2.facility=-1
appender.A2.layout=org.apache.log4j.BasicLayout
appender.A2.portNumber=-1
appender.A2.syslogHost=localhost
appender.A2.syslogName=log4cppApp
appender.A3=org.apache.log4j.Win32DebugAppender
appender.A3.layout=org.apache.log4j.BasicLayout
appender.A4=org.apache.log4j.FileAppender
appender.A4.fileName=smas2.log
appender.A4.layout=org.apache.log4j.BasicLayout
category.BoardControl=INFO, A4
category.BoardControl.additivity=false
rootCategory=ERROR, A4

}}}

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