/**
* Process this instruction
*
* @param context the dynamic context of the transformation
* @return a TailCall to be executed by the caller, always null for this instruction
*/
public TailCall processLeavingTail(XPathContext context) throws XPathException {
Controller controller = context.getController();
SequenceReceiver out = context.getReceiver();
int opt = options;
int ann = annotation;
// we may need to change the namespace prefix if the one we chose is
// already in use with a different namespace URI: this is done behind the scenes
// by the Outputter
CharSequence value = expandChildren(context);
if (schemaType != null) {
// test whether the value actually conforms to the given type
XPathException err =
schemaType.validateContent(
value,
DummyNamespaceResolver.getInstance(),
context.getConfiguration().getNameChecker());
if (err != null) {
ValidationException verr =
new ValidationException(
"Attribute value "
+ Err.wrap(value, Err.VALUE)
+ " does not the match the required type "
+ schemaType.getDescription()
+ ". "
+ err.getMessage());
verr.setErrorCode("XTTE1540");
verr.setLocator(this);
throw verr;
}
} else if (validationAction == Validation.STRICT || validationAction == Validation.LAX) {
try {
ann = controller.getConfiguration().validateAttribute(nameCode, value, validationAction);
} catch (ValidationException e) {
DynamicError err = DynamicError.makeDynamicError(e);
String errorCode = e.getErrorCodeLocalPart();
if (errorCode == null) {
errorCode = (validationAction == Validation.STRICT ? "XTTE1510" : "XTTE1515");
}
err.setErrorCode(errorCode);
err.setXPathContext(context);
err.setLocator(this);
err.setIsTypeError(true);
throw err;
}
}
try {
out.attribute(nameCode, ann, value, locationId, opt);
} catch (XPathException err) {
throw dynamicError(this, err, context);
}
return null;
}
/**
* Set the expression defining the value of the attribute. If this is a constant, and if
* validation against a schema type was requested, the validation is done immediately.
*
* @param select The expression defining the content of the attribute
* @param config
* @throws StaticError if the expression is a constant, and validation is requested, and the
* constant doesn't match the required type.
*/
public void setSelect(Expression select, Configuration config) throws StaticError {
super.setSelect(select, config);
// Attempt early validation if possible
if (select instanceof AtomicValue && schemaType != null && !schemaType.isNamespaceSensitive()) {
CharSequence value = ((AtomicValue) select).getStringValueCS();
XPathException err =
schemaType.validateContent(
value, DummyNamespaceResolver.getInstance(), config.getNameChecker());
if (err != null) {
StaticError se =
new StaticError(
"Attribute value "
+ Err.wrap(value, Err.VALUE)
+ " does not the match the required type "
+ schemaType.getDescription()
+ ". "
+ err.getMessage());
se.setErrorCode("XTTE1540");
throw se;
}
}
// If value is fixed, test whether there are any special characters that might need to be
// escaped when the time comes for serialization
if (select instanceof StringValue) {
boolean special = false;
CharSequence val = ((StringValue) select).getStringValueCS();
for (int k = 0; k < val.length(); k++) {
char c = val.charAt(k);
if ((int) c < 33 || (int) c > 126 || c == '<' || c == '>' || c == '&' || c == '\"') {
special = true;
break;
}
}
if (!special) {
this.options |= ReceiverOptions.NO_SPECIAL_CHARS;
}
}
// If attribute name is xml:id, add whitespace normalization
if ((nameCode & NamePool.FP_MASK) == StandardNames.XML_ID) {
Expression[] args = {select};
FunctionCall fn =
SystemFunction.makeSystemFunction("normalize-space", 1, config.getNamePool());
fn.setArguments(args);
select = fn;
super.setSelect(select, config);
}
}
public Item evaluateItem(XPathContext context) throws XPathException {
Orphan o = (Orphan) super.evaluateItem(context);
if (schemaType != null) {
XPathException err =
schemaType.validateContent(
o.getStringValueCS(),
DummyNamespaceResolver.getInstance(),
context.getConfiguration().getNameChecker());
if (err != null) {
throw new ValidationException(
"Attribute value "
+ Err.wrap(o.getStringValueCS(), Err.VALUE)
+ " does not the match the required type "
+ schemaType.getDescription()
+ ". "
+ err.getMessage());
}
o.setTypeAnnotation(schemaType.getFingerprint());
if (schemaType.isNamespaceSensitive()) {
throw new DynamicError(
"Cannot validate a parentless attribute whose content is namespace-sensitive");
}
} else if (validationAction == Validation.STRICT || validationAction == Validation.LAX) {
try {
int ann =
context
.getController()
.getConfiguration()
.validateAttribute(nameCode, o.getStringValueCS(), validationAction);
o.setTypeAnnotation(ann);
} catch (ValidationException e) {
DynamicError err = DynamicError.makeDynamicError(e);
err.setErrorCode(e.getErrorCodeLocalPart());
err.setXPathContext(context);
err.setLocator(this);
err.setIsTypeError(true);
throw err;
}
}
return o;
}