Package org.apache.catalina.manager

Class StatusTransformer

java.lang.Object

org.apache.catalina.manager.StatusTransformer

public class StatusTransformer
extends Object

This is a refactoring of the servlet to externalize the output into a simple class. Although we could use XSLT, that is unnecessarily complex.

Author:

Peter Lin

Constructor Summary

Constructors

Constructor	Description
StatusTransformer()

Method Summary

Modifier and Type	Method	Description
static String	formatSeconds(Object obj)	Formats the given time (given in seconds) as a string.
static String	formatSize(Object obj, boolean mb)	Display the given size in bytes, either as KB or MB.
static String	formatTime(Object obj, boolean seconds)	Display the given time in ms, either as ms or s.
static void	setContentType(HttpServletResponse response, int mode)
static void	writeBody(PrintWriter writer, Object[] args, int mode)	Write the header body.
static void	writeConnectorState(PrintWriter writer, ObjectName tpName, String name, MBeanServer mBeanServer, Vector<ObjectName> globalRequestProcessors, Vector<ObjectName> requestProcessors, int mode, Object[] args)	Write connector state.
protected static void	writeContext(PrintWriter writer, ObjectName objectName, MBeanServer mBeanServer, int mode)	Write context state.
static void	writeDetailedState(PrintWriter writer, MBeanServer mBeanServer, int mode)	Write applications state.
static void	writeFooter(PrintWriter writer, int mode)
static void	writeHeader(PrintWriter writer, Object[] args, int mode)	Write an HTML or XML header.
static void	writeJspMonitor(PrintWriter writer, Set<ObjectName> jspMonitorONs, MBeanServer mBeanServer, int mode)	Write JSP monitoring information.
static void	writeManager(PrintWriter writer, Object[] args, int mode)	Write the manager webapp information.
static void	writeManager(PrintWriter writer, ObjectName objectName, MBeanServer mBeanServer, int mode)	Write detailed information about a manager.
static void	writeOSState(PrintWriter writer, int mode, Object[] args)	Write the OS state.
static void	writePageHeading(PrintWriter writer, Object[] args, int mode)
protected static void	writeProcessorState(PrintWriter writer, ObjectName pName, MBeanServer mBeanServer, int mode)	Write processor state.
static void	writeServerInfo(PrintWriter writer, Object[] args, int mode)
static void	writeVMState(PrintWriter writer, int mode, Object[] args)	Write the VM state.
static void	writeWrapper(PrintWriter writer, ObjectName objectName, MBeanServer mBeanServer, int mode)	Write detailed information about a wrapper.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StatusTransformer

public StatusTransformer()

Method Detail

setContentType

public static void setContentType(HttpServletResponse response,
                                  int mode)

writeHeader

public static void writeHeader(PrintWriter writer,
                               Object[] args,
                               int mode)

Write an HTML or XML header.

Parameters:

writer - the PrintWriter to use

args - Path prefix for URLs

mode - - 0 = HTML header, 1 = XML declaration

writeBody

public static void writeBody(PrintWriter writer,
                             Object[] args,
                             int mode)

Write the header body. XML output doesn't bother to output this stuff, since it's just title.

Parameters:

writer - The output writer

args - What to write

mode - 0 means write

writeManager

public static void writeManager(PrintWriter writer,
                                Object[] args,
                                int mode)

Write the manager webapp information.

Parameters:

writer - The output writer

args - What to write

mode - 0 means write

writePageHeading

public static void writePageHeading(PrintWriter writer,
                                    Object[] args,
                                    int mode)

writeServerInfo

public static void writeServerInfo(PrintWriter writer,
                                   Object[] args,
                                   int mode)

writeFooter

public static void writeFooter(PrintWriter writer,
                               int mode)

writeOSState

public static void writeOSState(PrintWriter writer,
                                int mode,
                                Object[] args)

Write the OS state.

Parameters:

writer - The output writer

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

args - I18n labels for the OS state values

writeVMState

public static void writeVMState(PrintWriter writer,
                                int mode,
                                Object[] args)
                         throws Exception

Write the VM state.

Parameters:

writer - The output writer

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

args - I18n labels for the VM state values

Throws:

Exception - Propagated JMX error

writeConnectorState

public static void writeConnectorState(PrintWriter writer,
                                       ObjectName tpName,
                                       String name,
                                       MBeanServer mBeanServer,
                                       Vector<ObjectName> globalRequestProcessors,
                                       Vector<ObjectName> requestProcessors,
                                       int mode,
                                       Object[] args)
                                throws Exception

Write connector state.

Parameters:

writer - The output writer

tpName - MBean name of the thread pool

name - Connector name

mBeanServer - MBean server

globalRequestProcessors - MBean names for the global request processors

requestProcessors - MBean names for the request processors

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

args - I18n labels for the Connector state values

Throws:

Exception - Propagated JMX error

writeProcessorState

protected static void writeProcessorState(PrintWriter writer,
                                          ObjectName pName,
                                          MBeanServer mBeanServer,
                                          int mode)
                                   throws Exception

Write processor state.

Parameters:

writer - The output writer

pName - MBean name of the processor

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

writeDetailedState

public static void writeDetailedState(PrintWriter writer,
                                      MBeanServer mBeanServer,
                                      int mode)
                               throws Exception

Write applications state.

Parameters:

writer - The output writer

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

writeContext

protected static void writeContext(PrintWriter writer,
                                   ObjectName objectName,
                                   MBeanServer mBeanServer,
                                   int mode)
                            throws Exception

Write context state.

Parameters:

writer - The output writer

objectName - The context MBean name

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

writeManager

public static void writeManager(PrintWriter writer,
                                ObjectName objectName,
                                MBeanServer mBeanServer,
                                int mode)
                         throws Exception

Write detailed information about a manager.

Parameters:

writer - The output writer

objectName - The manager MBean name

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

writeJspMonitor

public static void writeJspMonitor(PrintWriter writer,
                                   Set<ObjectName> jspMonitorONs,
                                   MBeanServer mBeanServer,
                                   int mode)
                            throws Exception

Write JSP monitoring information.

Parameters:

writer - The output writer

jspMonitorONs - The JSP MBean names

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

writeWrapper

public static void writeWrapper(PrintWriter writer,
                                ObjectName objectName,
                                MBeanServer mBeanServer,
                                int mode)
                         throws Exception

Write detailed information about a wrapper.

Parameters:

writer - The output writer

objectName - The wrapper MBean names

mBeanServer - MBean server

mode - Mode 0 will generate HTML. Mode 1 will generate XML.

Throws:

Exception - Propagated JMX error

formatSize

public static String formatSize(Object obj,
                                boolean mb)

Display the given size in bytes, either as KB or MB.

Parameters:

obj - The object to format

mb - true to display megabytes, false for kilobytes

Returns:

formatted size

formatTime

public static String formatTime(Object obj,
                                boolean seconds)

Display the given time in ms, either as ms or s.

Parameters:

obj - The object to format

seconds - true to display seconds, false for milliseconds

Returns:

formatted time

formatSeconds

public static String formatSeconds(Object obj)

Formats the given time (given in seconds) as a string.

Parameters:

obj - Time object to be formatted as string

Returns:

formatted time