package org.jboss.resteasy.logging;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import org.jboss.resteasy.resteasy_jaxrs.i18n.Messages;

Logging abstraction. Call setLoggerType() to the logging framework you want to use.
Author:Bill Burke
Version:$Revision: 1 $
/** * Logging abstraction. Call setLoggerType() to the logging framework you want to use. * * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a> * @version $Revision: 1 $ */
public abstract class Logger { public enum LoggerType { JUL, LOG4J, SLF4J }
Set this variable to set what logger you want. The default is java.util.logging
/** * Set this variable to set what logger you want. The default is java.util.logging */
private static Constructor loggerConstructor = null; public static void setLoggerType(LoggerType loggerType) { try { Class loggerClass = null; if (loggerType == LoggerType.JUL) { loggerClass = Logger.class.getClassLoader().loadClass("org.jboss.resteasy.logging.impl.JULLogger"); } else if (loggerType == LoggerType.LOG4J) { loggerClass = Logger.class.getClassLoader().loadClass("org.jboss.resteasy.logging.impl.Log4jLogger"); } else if (loggerType == LoggerType.SLF4J) { loggerClass = Logger.class.getClassLoader().loadClass("org.jboss.resteasy.logging.impl.Slf4jLogger"); } if (loggerClass == null) throw new RuntimeException(Messages.MESSAGES.couldNotMatchUpLoggerTypeImplementation(loggerType)); loggerConstructor = loggerClass.getDeclaredConstructor(String.class); } catch (ClassNotFoundException e) { throw new RuntimeException(e); } catch (NoSuchMethodException e) { throw new RuntimeException(e); } } private static boolean classInClasspath(String className) { try { return Thread.currentThread().getContextClassLoader().loadClass(className) != null; } catch (ClassNotFoundException e) { return false; } } static { LoggerType type = LoggerType.JUL; if (classInClasspath("org.apache.log4j.Logger")) { type = LoggerType.LOG4J; } else if (classInClasspath("org.slf4j.Logger")) { type = LoggerType.SLF4J; } setLoggerType(type); } public static Logger getLogger(Class<?> clazz) { try { return (Logger) loggerConstructor.newInstance(clazz.getName()); } catch (InstantiationException e) { throw new RuntimeException(e); } catch (IllegalAccessException e) { throw new RuntimeException(e); } catch (InvocationTargetException e) { throw new RuntimeException(e); } } public abstract boolean isTraceEnabled(); public abstract void trace(String message); public abstract void trace(String message, Object... params); public abstract void trace(String message, Throwable error); public abstract boolean isDebugEnabled(); public abstract void debug(String message); public abstract void debug(String message, Object... params); public abstract void debug(String message, Throwable error); public abstract void info(String message); public abstract void info(String message, Object... params); public abstract void info(String message, Throwable error); public abstract boolean isWarnEnabled(); public abstract void warn(String message); public abstract void warn(String message, Object... params); public abstract void warn(String message, Throwable error); public abstract void error(String message); public abstract void error(String message, Object... params); public abstract void error(String message, Throwable error); }