// SAX exception class.
// http://www.saxproject.org
// No warranty; no copyright -- use this as you will.
// $Id: SAXParseException.java,v 1.11 2004/04/21 13:05:02 dmegginson Exp $
package org.xml.sax;
/**
* Encapsulate an XML parse 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>
* See <a href='http://www.saxproject.org'>http://www.saxproject.org</a>
* for further information.
* </blockquote>
*
* <p>This exception may include information for locating the error
* in the original XML document, as if it came from a {@link Locator}
* object. Note that although the application
* will receive a SAXParseException as the argument to the handlers
* in the {@link org.xml.sax.ErrorHandler ErrorHandler} interface,
* the application is not actually required to throw the exception;
* instead, it can simply read the information in it and take a
* different action.</p>
*
* <p>Since this exception is a subclass of {@link org.xml.sax.SAXException
* SAXException}, it inherits the ability to wrap another exception.</p>
*
* @since SAX 1.0
* @author David Megginson
* @version 2.0.1 (sax2r2)
* @see org.xml.sax.SAXException
* @see org.xml.sax.Locator
* @see org.xml.sax.ErrorHandler
*/
public class SAXParseException extends SAXException {
//////////////////////////////////////////////////////////////////////
// Constructors.
//////////////////////////////////////////////////////////////////////
/**
* Create a new SAXParseException from a message and a Locator.
*
* <p>This constructor is especially useful when an application is
* creating its own exception from within a {@link org.xml.sax.ContentHandler
* ContentHandler} callback.</p>
*
* @param message The error or warning message.
* @param locator The locator object for the error or warning (may be
* null).
* @see org.xml.sax.Locator
*/
public SAXParseException (String message, Locator locator) {
super(message);
if (locator != null) {
init(locator.getPublicId(), locator.getSystemId(),
locator.getLineNumber(), locator.getColumnNumber());
} else {
init(null, null, -1, -1);
}
}
/**
* Wrap an existing exception in a SAXParseException.
*
* <p>This constructor is especially useful when an application is
* creating its own exception from within a {@link org.xml.sax.ContentHandler
* ContentHandler} callback, and needs to wrap an existing exception that is not a
* subclass of {@link org.xml.sax.SAXException SAXException}.</p>
*
* @param message The error or warning message, or null to
* use the message from the embedded exception.
* @param locator The locator object for the error or warning (may be
* null).
* @param e Any exception.
* @see org.xml.sax.Locator
*/
public SAXParseException (String message, Locator locator,
Exception e) {
super(message, e);
if (locator != null) {
init(locator.getPublicId(), locator.getSystemId(),
locator.getLineNumber(), locator.getColumnNumber());
} else {
init(null, null, -1, -1);
}
}
/**
* Create a new SAXParseException.
*
* <p>This constructor is most useful for parser writers.</p>
*
* <p>All parameters except the message are as if
* they were provided by a {@link Locator}. For example, if the
* system identifier is a URL (including relative filename), the
* caller must resolve it fully before creating the exception.</p>
*
*
* @param message The error or warning message.
* @param publicId The public identifier of the entity that generated
* the error or warning.
* @param systemId The system identifier of the entity that generated
* the error or warning.
* @param lineNumber The line number of the end of the text that
* caused the error or warning.
* @param columnNumber The column number of the end of the text that
* cause the error or warning.
*/
public SAXParseException (String message, String publicId, String systemId,
int lineNumber, int columnNumber)
{
super(message);
init(publicId, systemId, lineNumber, columnNumber);
}
/**
* Create a new SAXParseException with an embedded exception.
*
* <p>This constructor is most useful for parser writers who
* need to wrap an exception that is not a subclass of
* {@link org.xml.sax.SAXException SAXException}.</p>
*
* <p>All parameters except the message and exception are as if
* they were provided by a {@link Locator}. For example, if the
* system identifier is a URL (including relative filename), the
* caller must resolve it fully before creating the exception.</p>
*
* @param message The error or warning message, or null to use
* the message from the embedded exception.
* @param publicId The public identifier of the entity that generated
* the error or warning.
* @param systemId The system identifier of the entity that generated
* the error or warning.
* @param lineNumber The line number of the end of the text that
* caused the error or warning.
* @param columnNumber The column number of the end of the text that
* cause the error or warning.
* @param e Another exception to embed in this one.
*/
public SAXParseException (String message, String publicId, String systemId,
int lineNumber, int columnNumber, Exception e)
{
super(message, e);
init(publicId, systemId, lineNumber, columnNumber);
}
/**
* Internal initialization method.
*
* @param publicId The public identifier of the entity which generated the exception,
* or null.
* @param systemId The system identifier of the entity which generated the exception,
* or null.
* @param lineNumber The line number of the error, or -1.
* @param columnNumber The column number of the error, or -1.
*/
private void init (String publicId, String systemId,
int lineNumber, int columnNumber)
{
this.publicId = publicId;
this.systemId = systemId;
this.lineNumber = lineNumber;
this.columnNumber = columnNumber;
}
/**
* Get the public identifier of the entity where the exception occurred.
*
* @return A string containing the public identifier, or null
* if none is available.
* @see org.xml.sax.Locator#getPublicId
*/
public String getPublicId ()
{
return this.publicId;
}
/**
* Get the system identifier of the entity where the exception occurred.
*
* <p>If the system identifier is a URL, it will have been resolved
* fully.</p>
*
* @return A string containing the system identifier, or null
* if none is available.
* @see org.xml.sax.Locator#getSystemId
*/
public String getSystemId ()
{
return this.systemId;
}
/**
* The line number of the end of the text where the exception occurred.
*
* <p>The first line is line 1.</p>
*
* @return An integer representing the line number, or -1
* if none is available.
* @see org.xml.sax.Locator#getLineNumber
*/
public int getLineNumber ()
{
return this.lineNumber;
}
/**
* The column number of the end of the text where the exception occurred.
*
* <p>The first column in a line is position 1.</p>
*
* @return An integer representing the column number, or -1
* if none is available.
* @see org.xml.sax.Locator#getColumnNumber
*/
public int getColumnNumber ()
{
return this.columnNumber;
}
//////////////////////////////////////////////////////////////////////
// Internal state.
//////////////////////////////////////////////////////////////////////
/**
* @serial The public identifier, or null.
* @see #getPublicId
*/
private String publicId;
/**
* @serial The system identifier, or null.
* @see #getSystemId
*/
private String systemId;
/**
* @serial The line number, or -1.
* @see #getLineNumber
*/
private int lineNumber;
/**
* @serial The column number, or -1.
* @see #getColumnNumber
*/
private int columnNumber;
}
// end of SAXParseException.java