package foundation.log;

import java.io.File;
import java.io.FileInputStream;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.Appender;
import org.apache.logging.log4j.core.Layout;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.appender.FileAppender;
import org.apache.logging.log4j.core.config.AppenderRef;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.ConfigurationSource;
import org.apache.logging.log4j.core.config.Configurator;
import org.apache.logging.log4j.core.config.LoggerConfig;
import org.apache.logging.log4j.core.layout.PatternLayout;

public class LogCenter {

	private static LoggerContext context;
	private static Configuration configuration;
	
	public static void initConsole(String path) throws Exception {
		File file = new File(path);
		
		if (!file.exists()) {
			throw new Exception("log config not exists: " + file);
		}
		
		FileInputStream inputStream = new FileInputStream(file);
		try {
			ConfigurationSource source = new ConfigurationSource(inputStream);
			context = Configurator.initialize(null, source);
			configuration = context.getConfiguration();
		}
		finally {
			inputStream.close();
		}
	}
	
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public static void appendOneLogger() {
        Layout layout = PatternLayout.createDefaultLayout(configuration);
        
        @SuppressWarnings("deprecation")
		Appender appender = FileAppender.createAppender("target/test.log", "false", "false", "File", "true", "false", "false", "4000", layout, null, "false", null, configuration);
        appender.start();
        configuration.addAppender(appender);
        
        AppenderRef ref = AppenderRef.createAppenderRef("File", null, null);
        AppenderRef[] refs = new AppenderRef[] {ref};
        
        LoggerConfig loggerConfig = LoggerConfig.createLogger(false, Level.DEBUG, "org.apache.logging.log4j", "true", refs, null, configuration, null);
        loggerConfig.addAppender(appender, null, null);
        
        configuration.addLogger("org.apache.logging.log4j", loggerConfig);
        context.updateLoggers();		
	}

}