package com.ctc.wstx.exc;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import org.codehaus.stax2.validation.XMLValidationException;
import org.codehaus.stax2.validation.XMLValidationProblem;
import com.ctc.wstx.util.StringUtil;
/**
* Specific exception thrown when document has validation (DTD, W3C Schema)
* errors; things that are not well-formedness problems.
*<p>
* The current implementation does not add much beyond basic
* {@link XMLValidationException}, except for fixing some problems that
* underlying {@link XMLStreamException} has.
*<p>
* Note that some of the code is shared with {@link WstxException}. Unfortunately
* it is not possible to extend it, however, since it extends basic
* {@link XMLStreamException}, not {@link XMLValidationException}.
*<p>
* One more thing to note: unlike some other exception classes, these
* exceptions do not have chained root causes. That's why no special
* handling is necessary for setting the root cause in backwards compatible
* way.
*/
@SuppressWarnings("serial")
public class WstxValidationException
extends XMLValidationException
{
protected WstxValidationException(XMLValidationProblem cause, String msg)
{
super(cause, msg);
}
protected WstxValidationException(XMLValidationProblem cause, String msg,
Location loc)
{
super(cause, msg, loc);
}
public static WstxValidationException create(XMLValidationProblem cause)
{
// Should always get a message
Location loc = cause.getLocation();
if (loc == null) {
return new WstxValidationException(cause, cause.getMessage());
}
return new WstxValidationException(cause, cause.getMessage(), loc);
}
/*
/////////////////////////////////////////////////////////
// Overridden methods from XMLStreamException
/////////////////////////////////////////////////////////
*/
/**
* Method is overridden for two main reasons: first, default method
* does not display public/system id information, even if it exists, and
* second, default implementation can not handle nested Location
* information.
*/
public String getMessage()
{
String locMsg = getLocationDesc();
/* Better not use super's message if we do have location information,
* since parent's message contains (part of) Location
* info; something we can regenerate better...
*/
if (locMsg == null) {
return super.getMessage();
}
String msg = getValidationProblem().getMessage();
StringBuilder sb = new StringBuilder(msg.length() + locMsg.length() + 20);
sb.append(msg);
StringUtil.appendLF(sb);
sb.append(" at ");
sb.append(locMsg);
return sb.toString();
}
public String toString()
{
return getClass().getName()+": "+getMessage();
}
/*
////////////////////////////////////////////////////////
// Internal methods:
////////////////////////////////////////////////////////
*/
protected String getLocationDesc()
{
Location loc = getLocation();
return (loc == null) ? null : loc.toString();
}
}