Package org.jboss.aesh.util

Source Code of org.jboss.aesh.util.LoggerUtil

/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Eclipse Public License version 1.0, available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.jboss.aesh.util;

import org.jboss.aesh.console.Config;

import java.io.File;
import java.io.IOException;
import java.util.logging.FileHandler;
import java.util.logging.Handler;
import java.util.logging.Logger;
import java.util.logging.SimpleFormatter;

/**
* butt ugly logger util, but its simple and gets the job done (hopefully not too dangerous)
* warning: made it even uglier when Settings was changed to not be a Singleton... gah!
*
* @author <a href="mailto:stale.pedersen@jboss.org">Ståle W. Pedersen</a>
*/
public class LoggerUtil {

    private static Handler logHandler;

    public static void createLogHandler(String log) {
        try {
            File logFile = new File(log);
            if(logFile.getParentFile() != null && !logFile.getParentFile().isDirectory()) {
                if(!logFile.getParentFile().mkdirs()) {
                    //if creating dirs failed, just create a logger without a file handler
                    return;
                }
            }
            else if(logFile.isDirectory()) {
                logFile = new File(logFile.getAbsolutePath()+ Config.getPathSeparator()+"aesh.log");
            }
            logHandler = new FileHandler(logFile.getAbsolutePath());
            logHandler.setFormatter(new SimpleFormatter());
        }
        catch (IOException e) {
            e.printStackTrace();
        }

    }

    /**
     *
     * @param name class
     * @return logger
     */
    public static synchronized Logger getLogger(String name) {
        if(logHandler == null) {
            //just create a default logHandler
            createLogHandler(Config.getTmpDir()+Config.getPathSeparator()+"aesh.log");
        }

        if(logHandler == null)
            return Logger.getLogger(name);

        Logger log =  Logger.getLogger(name);
        log.setUseParentHandlers(false);
        log.addHandler(logHandler);

        return log;
    }
}
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