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package com.sun.jdo.spi.persistence.utility.logging;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.LogManager;
import java.util.logging.Formatter;
import java.util.logging.FileHandler;
import java.util.logging.SimpleFormatter;
import java.security.AccessController;
import java.security.PrivilegedAction;
import com.sun.jdo.spi.persistence.utility.I18NHelper;
/**
*
* @author Craig Russell
* @version 1.0
*/
public class LoggerFactoryJDK14 extends AbstractLoggerFactory {
/** I18N message handler for this class */
private static final ResourceBundle _messages =
I18NHelper.loadBundle(LoggerFactoryJDK14.class);
/** Get the message bundle for the AbstractLogger itself.
*/
protected static ResourceBundle getMessages () { return _messages; }
/** Creates new LoggerFactory */
public LoggerFactoryJDK14() {
}
protected LoggerJDK14 findLogger(String absoluteLoggerName) {
return (LoggerJDK14)
LogManager.getLogManager().getLogger(absoluteLoggerName);
}
/** Create a new Logger. create a logger for the named component.
* The bundle name and class loader are passed to allow the implementation
* to properly find and construct the internationalization bundle.
* This operation is executed as a privileged action to allow
* permission access for the following operations:
*
* LogManager.getLogManager().addLogger - this might do checkAccess.
* new FileHandler
* FileHandler.setLevel
* FileHandler.setFormatter
* Logger.addHandler
*
* @param absoluteLoggerName the absolute name of this logger
* @param bundleName the fully qualified name of the resource bundle
* @param loader the class loader used to load the resource bundle, or null
* @return the logger
*/
protected Logger createLogger (final String absoluteLoggerName,
final String bundleName, final ClassLoader loader) {
return (Logger) AccessController.doPrivileged (
new PrivilegedAction () {
public Object run () {
LoggerJDK14 logger = null;
ClassLoader pushed = Thread.currentThread().getContextClassLoader();
if(loader!=null) {
setContextClassLoader (loader);
}
try {
logger = createLogger(absoluteLoggerName, bundleName);
LogManager.getLogManager().addLogger(logger);
configureFileHandler(logger);
return logger;
} catch (Exception ex) {
MessageFormat messageFormat = new MessageFormat(
getMessages().getString("errorlogger.create.exception"));
getErrorLogger().log(Logger.SEVERE, messageFormat.format(
new String[]{absoluteLoggerName}), ex);
} finally {
setContextClassLoader (pushed);
}
return logger;
}
}
);
}
/**
* This method throws SecurityException if a security manager exists and if
* the caller does not have <tt>LoggingPermission("control"))</tt> or the
* calling code is not placed in the doPrivileged() block.
*/
protected void setContextClassLoader (final ClassLoader loader) {
if (loader != null) {
Thread.currentThread().setContextClassLoader (loader);
}
} //setContextClassLoader
protected LoggerJDK14 createLogger (String absoluteLoggerName, String
bundleName) {
LoggerJDK14 result = new LoggerJDK14(absoluteLoggerName, bundleName);
return result;
}
/**
* This method throws SecurityException if a security manager exists and if
* the caller does not have <tt>LoggingPermission("control"))</tt> or the
* calling code is not placed in the doPrivileged() block.
*/
protected void configureFileHandler(LoggerJDK14 logger) {
String name = logger.getName();
String baseName = name + ".FileHandler"; //NOI18N
LogManager logManager = LogManager.getLogManager();
String pattern = logManager.getProperty(baseName + ".pattern"); //NOI18N
if(pattern != null) {
//If pattern != null, create and attach a FileHandler to logger.
//Look various properties . If not found, fall back to
//defaults
int defaultLimit = 0;
String limit = logManager.getProperty(baseName + ".limit"); //NOI18N
if(limit != null) {
try {
defaultLimit = Integer.parseInt(limit);
if(defaultLimit < 0)
defaultLimit = 0;
}
catch (NumberFormatException e) {
}
}
int defaultCount = 1;
String count = logManager.getProperty(baseName + ".count"); //NOI18N
if(count != null) {
try {
defaultCount = Integer.parseInt(count);
if(defaultCount < 1)
defaultCount = 1;
}
catch (NumberFormatException e) {
}
}
boolean defaultAppend = false;
String append = logManager.getProperty(baseName + ".append"); //NOI18N
if(append != null) {
defaultAppend = Boolean.valueOf(append).booleanValue();
}
FileHandler fileHandler = null;
try {
fileHandler = new FileHandler(pattern, defaultLimit,
defaultCount, defaultAppend);
}
catch(Exception e) {
MessageFormat messageFormat = new MessageFormat( getMessages().getString(
"errorlogger.filehandler.initialize.exception")); //NOI18N
getErrorLogger().log(Logger.WARNING,
messageFormat.format(new String[]{name}), e);
}
if(fileHandler != null) {
//Initialize various attributes for the new fileHandler
//--Level
String level = logManager.getProperty(baseName + ".level"); //NOI18N
if (level != null) {
try {
fileHandler.setLevel(Level.parse(level) );
}
catch(IllegalArgumentException e) {
}
}
//--Formatter
Formatter defaultFormatter = null;
//Initialize various attributes for the new fileHandler
String formatter = logManager.getProperty(baseName + ".formatter"); //NOI18N
if(formatter != null) {
try {
Class clz = ClassLoader.getSystemClassLoader().loadClass(formatter);
defaultFormatter = (Formatter) clz.newInstance();
} catch (Exception e) {
// We got one of a variety of exceptions in creating the
// class or creating an instance.
// Drop through.
MessageFormat messageFormat = new MessageFormat(
getMessages().getString("errorlogger.formatter.initialize.exception"));
getErrorLogger().log(Logger.WARNING, messageFormat.format(new String[]{name}), e);
}
}
if (defaultFormatter == null) {
defaultFormatter = new SimpleFormatter();
}
try {
fileHandler.setFormatter(defaultFormatter);
}
catch(IllegalArgumentException e) {
}
logger.addHandler(fileHandler);
} //if(fileHandler != null)
} //if(pattern != null)
}
}