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org.apache.tomcat.util.threads
Class ThreadWithAttributes  

java.lang.Object
  java.lang.Thread
      org.apache.tomcat.util.threads.ThreadWithAttributes

All Implemented Interfaces:

java.lang.Runnable

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public class ThreadWithAttributes

extends java.lang.Thread

Special thread that allows storing of attributes and notes. A guard is used to prevent untrusted code from accessing the attributes. This avoids hash lookups and provide something very similar with ThreadLocal ( but compatible with JDK1.1 and faster on JDK < 1.4 ). The main use is to store 'state' for monitoring ( like "processing request 'GET /' ").

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Nested Class Summary

 

Nested classes inherited from class java.lang.Thread

java.lang.Thread.UncaughtExceptionHandler

 

Field Summary
private  java.util.Hashtable	attributes
private  java.lang.Object	control
private  java.lang.String	currentStage
static int	MAX_NOTES
private  java.lang.Object[]	notes
private  java.lang.Object	param
private  java.lang.Object[]	thData

 

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

 

Constructor Summary

ThreadWithAttributes(java.lang.Object control, java.lang.Runnable r)

 

Method Summary
java.util.Hashtable	getAttributes(java.lang.Object control)           Generic attributes.
java.lang.String	getCurrentStage(java.lang.Object control)           Information about the curent performed operation
java.lang.Object	getNote(java.lang.Object control, int id)
java.lang.Object	getParam(java.lang.Object control)           Information about the current request ( or the main object we are processing )
java.lang.Object[]	getThreadData(java.lang.Object control)
void	setCurrentStage(java.lang.Object control, java.lang.String currentStage)
void	setNote(java.lang.Object control, int id, java.lang.Object value)           Notes - for attributes that need fast access ( array ) The application is responsible for id management
void	setParam(java.lang.Object control, java.lang.Object param)
void	setThreadData(java.lang.Object control, java.lang.Object[] thData)

 

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

 

Methods inherited from class java.lang.Object

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

 

Field Detail

control

private java.lang.Object control

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MAX_NOTES

public static int MAX_NOTES

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notes

private java.lang.Object[] notes

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attributes

private java.util.Hashtable attributes

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currentStage

private java.lang.String currentStage

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param

private java.lang.Object param

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thData

private java.lang.Object[] thData

Constructor Detail

ThreadWithAttributes

public ThreadWithAttributes(java.lang.Object control,
                            java.lang.Runnable r)

Method Detail

getThreadData

public final java.lang.Object[] getThreadData(java.lang.Object control)

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setThreadData

public final void setThreadData(java.lang.Object control,
                                java.lang.Object[] thData)

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setNote

public final void setNote(java.lang.Object control,
                          int id,
                          java.lang.Object value)

Notes - for attributes that need fast access ( array ) The application is responsible for id management

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getCurrentStage

public final java.lang.String getCurrentStage(java.lang.Object control)

Information about the curent performed operation

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getParam

public final java.lang.Object getParam(java.lang.Object control)

Information about the current request ( or the main object we are processing )

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setCurrentStage

public final void setCurrentStage(java.lang.Object control,
                                  java.lang.String currentStage)

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setParam

public final void setParam(java.lang.Object control,
                           java.lang.Object param)

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getNote

public final java.lang.Object getNote(java.lang.Object control,
                                      int id)

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getAttributes

public final java.util.Hashtable getAttributes(java.lang.Object control)

Generic attributes. You'll need a hashtable lookup - you can use notes for array access.

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Home >> All >> org >> apache >> tomcat >> util >> [ threads overview ]	PREV CLASS  NEXT CLASS
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