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With inspiration from other libraries

There is a newer version: 5.17.0

package org.codehaus.plexus.logging;

/**
 * @author Jason van Zyl
 * @author Trygve Laugstøl
 * @version $Id: LoggerManager.java 1323 2004-12-20 23:00:59Z jvanzyl $
 */
public interface LoggerManager
{
    String ROLE = LoggerManager.class.getName();

    /**
     * Sets the threshold for all new loggers. It will NOT affect the existing loggers.
     *
     * This is usually only set once while the logger manager is configured.
     * 
     * @param threshold The new threshold.
     */
    void setThreshold( int threshold );

    /**
     * Returns the current threshold for all new loggers.
     *
     * @return Returns the current threshold for all new loggers.
     */
    int getThreshold();

    // The new stuff
    void setThreshold( String role, int threshold );

    void setThreshold( String role, String roleHint, int threshold );

    int getThreshold( String role );

    int getThreshold( String role, String roleHint );

    Logger getLoggerForComponent( String role );

    Logger getLoggerForComponent( String role, String roleHint );

    void returnComponentLogger( String role );

    void returnComponentLogger( String role, String hint );

    int getActiveLoggerCount();
}