ptolemy.vergil
Class VergilErrorHandler
java.lang.Object
ptolemy.vergil.VergilErrorHandler
- All Implemented Interfaces:
- ErrorHandler
public class VergilErrorHandler
- extends java.lang.Object
- implements ErrorHandler
This error handler attempts to replace any failed MoML elements with
generic versions so that the parsing of the MoML can continue. The
generic versions, where appropriate, have icons that indicate failure.
- Since:
- Ptolemy II 2.0
- Version:
- $Id: VergilErrorHandler.java 57040 2010-01-27 20:52:32Z cxh $
- Author:
- Edward A. Lee
- Accepted Rating:
- Proposed Rating:
Method Summary |
private int |
_showStackTrace(java.awt.Component context,
boolean skipElement,
boolean skippingEnabled,
java.lang.Throwable exception,
java.lang.String info)
Display a stack trace dialog. |
void |
enableErrorSkipping(boolean enable)
Enable or disable skipping of errors. |
int |
handleError(java.lang.String element,
NamedObj context,
java.lang.Throwable exception)
Handle an error. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
_skippingEnabled
private boolean _skippingEnabled
_skipping
private boolean _skipping
VergilErrorHandler
public VergilErrorHandler()
enableErrorSkipping
public void enableErrorSkipping(boolean enable)
- Enable or disable skipping of errors.
If this method is called with a true argument, then
do not report subsequent errors when handleError() is called,
and instead return CONTINUE. If it is called with a false
argument, then report all subsequent errors.
This method is intended to be used when an operation may trigger
a large number of errors, and the user interface wishes to offer
the user the option of ignoring them. This method should be
called with a true argument before the operation begins, and
then called with a false argument after the operation ends.
- Specified by:
enableErrorSkipping
in interface ErrorHandler
- Parameters:
enable
- True to enable skipping, false to disable.
handleError
public int handleError(java.lang.String element,
NamedObj context,
java.lang.Throwable exception)
- Handle an error.
- Specified by:
handleError
in interface ErrorHandler
- Parameters:
element
- The XML element that triggered the error.context
- The container object for the element.exception
- The exception that was thrown.
- Returns:
- CONTINUE to skip this element, CANCEL to abort processing
of the XML, IGNORE to continue to process the XML as if nothing
had happened, or RETHROW to request that the exception be rethrown.
_showStackTrace
private int _showStackTrace(java.awt.Component context,
boolean skipElement,
boolean skippingEnabled,
java.lang.Throwable exception,
java.lang.String info)
- Display a stack trace dialog. The "info" argument is a
string printed at the top of the dialog instead of the Exception
message.
- Parameters:
context
- The context.skipElement
- True if one of the buttons should be
'Skip element'. If skippingEnabled is true,
then the value of skipElement is ignored.skippingEnabled
- True if one of the buttons should be
'Skip remaining messages'.exception
- The exception.info
- A message.
- Returns:
- CONTINUE to skip this element, CANCEL to abort processing
of the XML.