com.sun.jdo.spi.persistence.utility.logging.AbstractLoggerFactory Maven / Gradle / Ivy
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/*
* AbstractLoggerFactory.java
*
* Created on May 13, 2002, 10:15 PM
*/
package com.sun.jdo.spi.persistence.utility.logging;
import java.util.Map;
import java.util.HashMap;
/**
*
* @author Rochelle Raccah
* @version %I%
*/
abstract public class AbstractLoggerFactory implements LoggerFactory
{
private final static String _domainPrefix = "com.sun.jdo."; //NOI18N
private final static Map _loggerCache = new HashMap();
private static final String _bundleName =
"com.sun.jdo.spi.persistence.utility.logging.Bundle"; // NOI18N
/** Get the error logger which is used to log things during creation of
* loggers.
*/
protected static Logger getErrorLogger ()
{
return LogHelper.getLogger("", _bundleName, // NOI18N
AbstractLoggerFactory.class.getClassLoader());
}
/** Get a Logger. The class that implements this interface is responsible
* for creating 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.
* @param relativeLoggerName the relative 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
*/
public synchronized Logger getLogger (String relativeLoggerName,
String bundleName, ClassLoader loader)
{
String absoluteLoggerName = getAbsoluteLoggerName(relativeLoggerName);
Logger value = (Logger)_loggerCache.get(absoluteLoggerName);
if (value == null)
{
value = createLogger(absoluteLoggerName, bundleName, loader);
if (value != null)
_loggerCache.put(absoluteLoggerName, value);
}
return value;
}
/** Create a new Logger. Subclasses are responsible for creating 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.
* @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
*/
abstract protected Logger createLogger (String absoluteLoggerName,
String bundleName, ClassLoader loader);
protected String getDomainRoot () { return _domainPrefix; }
protected String getAbsoluteLoggerName (String relativeLoggerName)
{
return (relativeLoggerName.startsWith("java") ? //NOI18N
relativeLoggerName : (getDomainRoot() + relativeLoggerName));
}
}