mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-22 10:59:36 +08:00
145 lines
3.9 KiB
Java
145 lines
3.9 KiB
Java
// SAX exception class.
|
||
// No warranty; no copyright -- use this as you will.
|
||
// $Id: SAXException.java,v 1.1 2000/10/02 02:43:17 sboag Exp $
|
||
|
||
package org.xml.sax;
|
||
|
||
/**
|
||
* Encapsulate a general SAX error or warning.
|
||
*
|
||
* <blockquote>
|
||
* <em>This module, both source code and documentation, is in the
|
||
* Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
|
||
* </blockquote>
|
||
*
|
||
* <p>This class can contain basic error or warning information from
|
||
* either the XML parser or the application: a parser writer or
|
||
* application writer can subclass it to provide additional
|
||
* functionality. SAX handlers may throw this exception or
|
||
* any exception subclassed from it.</p>
|
||
*
|
||
* <p>If the application needs to pass through other types of
|
||
* exceptions, it must wrap those exceptions in a SAXException
|
||
* or an exception derived from a SAXException.</p>
|
||
*
|
||
* <p>If the parser or application needs to include information about a
|
||
* specific location in an XML document, it should use the
|
||
* {@link org.xml.sax.SAXParseException SAXParseException} subclass.</p>
|
||
*
|
||
* @since SAX 1.0
|
||
* @author David Megginson,
|
||
* <a href="mailto:sax@megginson.com">sax@megginson.com</a>
|
||
* @version 2.0
|
||
* @see org.xml.sax.SAXParseException
|
||
*/
|
||
public class SAXException extends Exception {
|
||
|
||
|
||
/**
|
||
* Create a new SAXException.
|
||
*
|
||
* @param message The error or warning message.
|
||
* @see org.xml.sax.Parser#setLocale
|
||
*/
|
||
public SAXException (String message) {
|
||
super(message);
|
||
this.exception = null;
|
||
}
|
||
|
||
|
||
/**
|
||
* Create a new SAXException wrapping an existing exception.
|
||
*
|
||
* <p>The existing exception will be embedded in the new
|
||
* one, and its message will become the default message for
|
||
* the SAXException.</p>
|
||
*
|
||
* @param e The exception to be wrapped in a SAXException.
|
||
*/
|
||
public SAXException (Exception e)
|
||
{
|
||
super();
|
||
this.exception = e;
|
||
}
|
||
|
||
|
||
/**
|
||
* Create a new SAXException from an existing exception.
|
||
*
|
||
* <p>The existing exception will be embedded in the new
|
||
* one, but the new exception will have its own message.</p>
|
||
*
|
||
* @param message The detail message.
|
||
* @param e The exception to be wrapped in a SAXException.
|
||
* @see org.xml.sax.Parser#setLocale
|
||
*/
|
||
public SAXException (String message, Exception e)
|
||
{
|
||
super(message);
|
||
this.exception = e;
|
||
}
|
||
|
||
|
||
/**
|
||
* Return a detail message for this exception.
|
||
*
|
||
* <p>If there is an embedded exception, and if the SAXException
|
||
* has no detail message of its own, this method will return
|
||
* the detail message from the embedded exception.</p>
|
||
*
|
||
* @return The error or warning message.
|
||
* @see org.xml.sax.Parser#setLocale
|
||
*/
|
||
public String getMessage ()
|
||
{
|
||
String message = super.getMessage();
|
||
|
||
if (message == null && exception != null) {
|
||
return exception.getMessage();
|
||
} else {
|
||
return message;
|
||
}
|
||
}
|
||
|
||
|
||
/**
|
||
* Return the embedded exception, if any.
|
||
*
|
||
* @return The embedded exception, or null if there is none.
|
||
*/
|
||
public Exception getException ()
|
||
{
|
||
return exception;
|
||
}
|
||
|
||
|
||
/**
|
||
* Override toString to pick up any embedded exception.
|
||
*
|
||
* @return A string representation of this exception.
|
||
*/
|
||
public String toString ()
|
||
{
|
||
if (exception != null) {
|
||
return exception.toString();
|
||
} else {
|
||
return super.toString();
|
||
}
|
||
}
|
||
|
||
|
||
|
||
//////////////////////////////////////////////////////////////////////
|
||
// Internal state.
|
||
//////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
/**
|
||
* @serial The embedded exception if tunnelling, or null.
|
||
*/
|
||
private Exception exception;
|
||
|
||
}
|
||
|
||
// end of SAXException.java
|