LogManagement.java

package org.objectweb.jonas.common;

import java.util.Properties;
import java.util.TreeSet;

import javax.ejb.EJBException;

import org.objectweb.jonas.management.ReconfigDispatcher;
import org.objectweb.jonas.management.ReconfiguredProp;
import org.objectweb.util.monolog.api.Logger;
import org.objectweb.util.monolog.api.Level;

public class LogManagement extends ReconfigDispatcher implements LogManagementMBean {

    // Value used as sequence number by reconfiguration notifications
    long sequenceNumber = 0;

    // Name as used to label configuration properties
    public static final String SERVICE_NAME = "log";
    private static LogManagement unique = null;

    public static LogManagement getInstance() {
        if (unique == null) {
            unique = new LogManagement();
        }
        return unique;
    }

    public String [] getTopics() {
        Logger[] logs = Log.getLoggerFactory().getLoggers();
        // put names in alphabetical order
        TreeSet tset = new TreeSet();
        for (int i = 0; i < logs.length; i++) {
            tset.add(logs[i].getName());
        }
        return (String []) tset.toArray(new String [0]);
    }

    public String getTopicLevel(String topic) {
        String ret = null;
        Logger topicLogger = Log.getLoggerFactory().getLogger(topic);
        Level lev = topicLogger.getCurrentLevel();
        return lev.getName();
    }

    public void setTopicLevel(String topic, String level) {
        Logger topicLogger = Log.getLoggerFactory().getLogger(topic);
        Level lev = Log.getLevelFactory().getLevel(level);
        // must check null (bug monolog)
        if (lev != null) {
            topicLogger.setLevel(lev);
        } else {
            throw new EJBException("Unknown level " + level);
        }
        // the modified property name is 'logger.topic.level'
        String propName = "logger." + topic + ".level";
        // Send a notification containing the new value of this property to the listner MBean
        sendReconfigNotification(++sequenceNumber, SERVICE_NAME, new ReconfiguredProp(propName, level));
    }

    public Properties getProperties() {
        Properties props = Log.getProperties();
        if (props == null) {
            Log.getLoggerFactory();
            props = Log.getProperties();
        }
        return props;
    }

    public void saveConfig() {
        // Send save reconfig notification
        sendSaveNotification(++sequenceNumber, SERVICE_NAME);
    }

}

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