stella.xml
Class XMLErrorFinalizer.ErrorDistributor

java.lang.Object
  java.lang.Thread
      stella.xml.XMLErrorFinalizer.ErrorDistributor

All Implemented Interfaces:

Runnable

Enclosing class:

XMLErrorFinalizer

protected class XMLErrorFinalizer.ErrorDistributor
extends Thread

Helper class to speed up the return from the error listener method ErrorListener.errorOccured(stella.ErrorEvent). This class simply updates the sequencer's steps according to the sequence found in the constructor file and according to the method stated.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

private String	method The method of error handling.
private URL	newseq Only stored for debuggin reference.
private Sequencing	sequencer The sequencer whose steps are to be changed.
private DOMSequence	update The new dom sequence.
private boolean	valid True, if new sequence file could be parsed in a DOMSequence.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

XMLErrorFinalizer.ErrorDistributor(URL seq, String how, Sequencing oldstep)
Constructs a new error distributor.

Method Summary

boolean	isValid() Returns true if the alternate DOMSequence is valid.
void	run() Updates the sequencer's steps with the new sequence.

Methods inherited from class java.lang.Thread

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

Methods inherited from class java.lang.Object

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

Field Detail

method

private String method

The method of error handling.

sequencer

private Sequencing sequencer

The sequencer whose steps are to be changed.

update

private DOMSequence update

The new dom sequence.

valid

private boolean valid

True, if new sequence file could be parsed in a DOMSequence.

newseq

private URL newseq

Only stored for debuggin reference.

Constructor Detail

XMLErrorFinalizer.ErrorDistributor

public XMLErrorFinalizer.ErrorDistributor(URL seq,
                                          String how,
                                          Sequencing oldstep)

Constructs a new error distributor. Does not start automatically. Remebers the new sequncing steps provided in the argumental file and the type of appliance of the alternate sequence.

Method Detail

isValid

public boolean isValid()

Returns true if the alternate DOMSequence is valid. Only then the error dstributor should be started.

run

public void run()

Updates the sequencer's steps with the new sequence. The method defines whether the new sequnce replaces, appends or prepends to the original one. If the type of method is unknown, replacement is assumed.
This method works solely with XMLSequencer objects. The correct type is checked already at the sequncer registering stage.

To allow the error finalizer to determine the finalizing state of the finalizer, the distributor joins on the sequencer thread in case of XMLErrorFinalizer.ABORT errors.

Specified by:

run in interface Runnable

Overrides:

run in class Thread