/*
* @(#)TraceManager.java 1.16 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package com.sun.jmx.trace;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Provides an implementation of the {@link com.sun.jmx.trace.TraceDestination}
* interface which uses the J2SE logging API.
* <br><br>
* Note that this implementation can be used only with J2SE version 1.4 or
* higher.
* <br><br>
* All {@link Logger}s are contained in the <code>javax.management</code> namespace, which corresponds
* to the name of the root package hosting all public JMX interfaces. For each log type
* defined in {@link TraceTags}, we use a dedicated {@link Logger} with the same name
* under <code>javax.management</code>.
* <br><br>
* The table below shows the list of {@link Logger} objects used in this implementation and
* their corresponding category of activity.
* <br><br>
* <table cols="3" width="100%" border="1" align="center">
* <tr>
* <th>Logger Name</th>
* <th>JMX log type</th>
* <th>Information logged</th>
* </tr>
* <tr>
* <td><code>javax.management.mbeanserver</code></td>
* <td>{@link TraceTags#INFO_MBEANSERVER}</td>
* <td>Information about the MBean Server</td>
* </tr>
* <tr>
* <td><code>com.sun.jmx.snmp.daemon</code></td>
* <td>{@link TraceTags#INFO_ADAPTOR_SNMP}</td>
* <td>Information about the SNMP Adaptor</td>
* </tr>
* <tr>
* <td><code>com.sun.jmx.snmp</code></td>
* <td>{@link TraceTags#INFO_SNMP}</td>
* <td>Information about SNMP</td>
* </tr>
* <tr>
* <td><code>javax.management.mlet</code></td>
* <td>{@link TraceTags#INFO_MLET}</td>
* <td>Information from an MLet service</td>
* </tr>
* <tr>
* <td><code>javax.management.monitor</code></td>
* <td>{@link TraceTags#INFO_MONITOR}</td>
* <td>Information from a monitor</td>
* </tr>
* <tr>
* <td><code>javax.management.timer</code></td>
* <td>{@link TraceTags#INFO_TIMER}</td>
* <td>Information from a timer</td>
* </tr>
* <tr>
* <td><code>javax.management.notification</code></td>
* <td>{@link TraceTags#INFO_NOTIFICATION}</td>
* <td>Information from the notification mechanism</td>
* </tr>
* <tr>
* <td><code>javax.management.relation</code></td>
* <td>{@link TraceTags#INFO_RELATION}</td>
* <td>Information from the Relation Service</td>
* </tr>
* <tr>
* <td><code>javax.management.modelmbean</code></td>
* <td>{@link TraceTags#INFO_MODELMBEAN}</td>
* <td>Information from the Model MBean components</td>
* </tr>
* <tr>
* <td><code>javax.management.misc</code></td>
* <td>{@link TraceTags#INFO_MISC}</td>
* <td>Information sent from any other class</td>
* </tr>
* </table>
* <br><br>
* The mapping for the JMX log levels is the following:
* <br><br>
* <table cols="2" width="50%" border="1" align="center">
* <tr>
* <th>JMX log level</th>
* <th>J2SE logging API log level</th>
* </tr>
* <tr>
* <td><center>{@link TraceTags#LEVEL_DEBUG}</center></td>
* <td><center>{@link Level#FINEST}</center></td>
* </tr>
* <tr>
* <td><center>{@link TraceTags#LEVEL_TRACE}</center></td>
* <td><center>{@link Level#FINER}</center></td>
* </tr>
* <tr>
* <td><center>{@link TraceTags#LEVEL_ERROR}</center></td>
* <td><center>{@link Level#SEVERE}</center></td>
* </tr>
* </table>
*
* @since 1.5
* @since.unbundled JMX RI 1.2
*/
public class TraceManager implements TraceDestination {
/**
* Returns the {@link Level} corresponding to the integer value passed as
* argument. This value is assumed to be part of the log levels defined by
* class {@link TraceTags}.
*
* @return
* <ul>
* <li>{@link Level#FINEST} if value is {@link TraceTags#LEVEL_DEBUG}</li>
* <li>{@link Level#FINER} if value is {@link TraceTags#LEVEL_TRACE}</li>
* <li>{@link Level#SEVERE} if value is {@link TraceTags#LEVEL_ERROR}</li>
* <li><code>null</code> otherwise</li>
* </ul>
*/
private static Level getLevel(int level)
{
switch(level)
{
case TraceTags.LEVEL_DEBUG:
return Level.FINEST;
case TraceTags.LEVEL_TRACE:
return Level.FINER;
case TraceTags.LEVEL_ERROR:
return Level.SEVERE;
default:
return null;
}
}
/**
* Returns the {@link Logger} corresponding to the integer value passed as
* argument. This value is assumed to be part of the log types defined by
* class {@link TraceTags}.
*
* @return
* <ul>
* <li><code>Logger.getLogger(<b>"javax.management.mbeanserver"</b>)</code>if value is {@link TraceTags#INFO_MBEANSERVER}</li>
* <li><code>Logger.getLogger(<b>"javax.management.mlet"</b>)</code>if value is {@link TraceTags#INFO_MLET}</li>
* <li><code>Logger.getLogger(<b>"javax.management.monitor"</b>)</code>if value is {@link TraceTags#INFO_MONITOR}</li>
* <li><code>Logger.getLogger(<b>"javax.management.timer"</b>)</code>if value is {@link TraceTags#INFO_TIMER}</li>
* <li><code>Logger.getLogger(<b>"javax.management.misc"</b>)</code>if value is {@link TraceTags#INFO_MISC}</li>
* <li><code>Logger.getLogger(<b>"javax.management.notification"</b>)</code>if value is {@link TraceTags#INFO_NOTIFICATION}</li>
* <li><code>Logger.getLogger(<b>"javax.management.relation"</b>)</code>if value is {@link TraceTags#INFO_RELATION}</li>
* <li><code>Logger.getLogger(<b>"javax.management.modelmbean"</b>)</code>if value is {@link TraceTags#INFO_MODELMBEAN}</li>
* <li><code>Logger.getLogger(<b>"com.sun.jmx.snmp.daemon"</b>)</code>if value is {@link TraceTags#INFO_ADAPTOR_SNMP}</li>
* <li><code>Logger.getLogger(<b>"com.sun.jmx.snmp"</b>)</code>if value is {@link TraceTags#INFO_SNMP}</li>
* <li><code>null</code> otherwise</li>
* </ul>
*/
private static Logger getLogger(int type)
{
switch(type)
{
case TraceTags.INFO_MBEANSERVER:
return Logger.getLogger("javax.management.mbeanserver");
case TraceTags.INFO_ADAPTOR_SNMP:
return Logger.getLogger("com.sun.jmx.snmp.daemon");
case TraceTags.INFO_SNMP:
return Logger.getLogger("com.sun.jmx.snmp");
case TraceTags.INFO_MLET:
return Logger.getLogger("javax.management.mlet");
case TraceTags.INFO_MONITOR:
return Logger.getLogger("javax.management.monitor");
case TraceTags.INFO_TIMER:
return Logger.getLogger("javax.management.timer");
case TraceTags.INFO_MISC:
return Logger.getLogger("javax.management.misc");
case TraceTags.INFO_NOTIFICATION:
return Logger.getLogger("javax.management.notification");
case TraceTags.INFO_RELATION:
return Logger.getLogger("javax.management.relation");
case TraceTags.INFO_MODELMBEAN:
return Logger.getLogger("javax.management.modelmbean");
default:
return null;
}
}
/**
* @see TraceDestination#isSelected
*/
public boolean isSelected(int level, int type)
{
Logger logger;
Level lvl;
if (((logger = getLogger(type)) != null) &&
((lvl = getLevel(level)) != null))
{
return logger.isLoggable(lvl);
}
return false;
}
/**
* Note that the provided log type and log level have to be part of the
* enumerated values defined in class {@link TraceTags}. Otherwise, nothing is
* logged.
* @see TraceDestination#send(int, int, String, String, String)
*/
public boolean send(int level,
int type,
String className,
String methodName,
String info)
{
if (isSelected(level, type))
{
getLogger(type).logp(getLevel(level), className, methodName, info);
return true;
}
return false;
}
/**
* Note that the provided log type and log level have to be part of the
* enumerated values defined in class {@link TraceTags}. Otherwise, nothing is
* logged.
* @see TraceDestination#send(int, int, String, String, Throwable)
*/
public boolean send(int level,
int type,
String className,
String methodName,
Throwable exception)
{
if (isSelected(level, type)) {
getLogger(type).log(getLevel(level),
className + ": Exception occured in " + methodName ,
exception);
return true;
}
return false;
}
/**
* Not implemented, as the control over log levels and output handler is
* deferred to the J2SE logging API.
* @see TraceDestination#reset
**/
public void reset() throws IOException
{
}
/**
* Logs a warning message.
* This is equivalent to
* <code>Logger.getLogger(loggerName).warning(msg);</code>
*
* @since.unbundled JMX RI 1.2.1
**/
void warning(String loggerName, String msg) {
Logger.getLogger(loggerName).warning(msg);
}
/**
* Logs a fine message.
* This is equivalent to
* <code>Logger.getLogger(loggerName).fine(msg);</code>
*
* @since.unbundled JMX RI 1.2.1
**/
void fine(String loggerName, String msg) {
Logger.getLogger(loggerName).fine(msg);
}
}
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