stella.error
Class LateReply

java.lang.Object
  java.util.EventObject
      util.rmi.RmiEvent
          stella.MessageEvent
              stella.ErrorEvent
                  stella.error.TimeOutError
                      stella.error.LateReply

All Implemented Interfaces:

Serializable, CommandKnowledge

public class LateReply
extends TimeOutError

An error event signaling a late reply. This error is thrown whenever an acknowledge or done event did not occur in time but was received later after the time-out has already occured. In most cases this indicates that the software should be adjusted to allow for higher time-outs. It may indicate, though, that the network is too slow.

In the current implementation this is a mediocre important error (level 4). Because it needs update of the time-outs involved with certain commands this error causes a shutdown of the entire system.

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Serialized Form

Field Summary

private static String	FOLLOWUP The follow-up (shutdown).
private static boolean	PIPING The pipe flag (false).
private static int	SEVERENESS The severness level (fatal error).
private static String	TEXT The human-readable part of the error message.

Fields inherited from class stella.ErrorEvent

ABORT_EXPOSURE, ABORT_TARGET, ALARM_OFF, ALARM_ON, BAD_SEEING, BAD_WEATHER, CLEAR_TEL, CLOSE_COVER, CLOSE_ROOF, CLOSE_SHUTTER, CONT_TIME, ERROR_TOKEN, ERRORCOMBINE, ERRORPACKAGE, GOOD_WEATHER, HIGH_WIND, MAIL_HOME, MAIL_LOCAL, MOVE_HOME, MOVE_PARK, NONE, OPEN_COVER, OPEN_SHUTTER, PIPE, REACQUIRE, REPOSITION, RESEND_COMMAND, RESET_ADAPTER, RESET_CALIBRATION, RESET_CCD, RESET_ENV, RESET_ERRORS, RESET_SPEC, RESET_TEL, SHUT_DOWN, STATUS_TOKEN, STOP_TIME

Fields inherited from class stella.MessageEvent

SEPCHAR

Fields inherited from class util.rmi.RmiEvent

localHost, sourceName

Fields inherited from class java.util.EventObject

source

Constructor Summary

LateReply(Object src)
Constructs a software error.

Method Summary

Methods inherited from class stella.error.TimeOutError

getCommand, getHuman, setCommand

Methods inherited from class stella.ErrorEvent

consume, createError, createError, createError, createError, createError, createStatus, createStatus, createStatus, extractClassName, extractFollowUp, extractPipe, getErrorClass, getFollowUp, getLine, getSevereness, isConsumed, isPipe, isStatus, parseClassName, parseHeader, parseLine, setFollowUp, setHuman, setHuman, setPipe

Methods inherited from class stella.MessageEvent

checkType, equals, equalTime, equalTime, fromAscii, getAllCommandLines, getExecuteGroupKey, getHead, getNr, getTime, getType, hashCode, isValid, parseFromSingleString, readFromBufferedStream, setNr, setTime, setType, setValid, toString

Methods inherited from class util.rmi.RmiEvent

getHost, getSourceName, setSourceName

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

TEXT

private static final String TEXT

The human-readable part of the error message.

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Constant Field Values

SEVERENESS

private static final int SEVERENESS

The severness level (fatal error).

See Also:

Constant Field Values

FOLLOWUP

private static final String FOLLOWUP

The follow-up (shutdown).

See Also:

Constant Field Values

PIPING

private static final boolean PIPING

The pipe flag (false).

See Also:

Constant Field Values

Constructor Detail

LateReply

public LateReply(Object src)

Constructs a software error. Uses the SEVERENESS level, has a FOLLOWUP as a recovery strategy an does not pipe.