/**
* 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;
}
public void process(XPathContext context) throws XPathException {
String effMessage = message.evaluateAsString(context);
int effOrientation = 0;
if (orientation != null) {
String s = orientation.evaluateAsString(context);
try {
effOrientation = Integer.parseInt(s);
effOrientation = BarcodeDimension.normalizeOrientation(effOrientation);
} catch (NumberFormatException nfe) {
throw new ValidationException(nfe);
} catch (IllegalArgumentException iae) {
throw new ValidationException(iae);
}
}
try {
SequenceReceiver out = context.getReceiver();
// Acquire BarcodeGenerator
final BarcodeGenerator gen = BarcodeUtil.getInstance().createBarcodeGenerator(cfg);
// Setup Canvas
final SVGCanvasProvider svg;
if (cfg.getAttributeAsBoolean("useNamespace", true)) {
svg = new SVGCanvasProvider(cfg.getAttribute("prefix", "svg"), effOrientation);
} else {
svg = new SVGCanvasProvider(false, effOrientation);
}
// Generate barcode
gen.generateBarcode(svg, effMessage);
DocumentWrapper wrapper =
new DocumentWrapper(
svg.getDOM(), SVGCanvasProvider.SVG_NAMESPACE, context.getConfiguration());
out.append(wrapper, this.getLocationId(), 1);
} catch (ConfigurationException ce) {
throw new DynamicError("(Barcode4J) " + ce.getMessage());
} catch (BarcodeException be) {
throw new DynamicError("(Barcode4J) " + be.getMessage());
}
}