public PacketExtension parseExtension(XmlPullParser parser)
throws XmlPullParserException, IOException, XMPPException {
String hash = null;
String version = null;
String node = null;
if (parser.getEventType() == XmlPullParser.START_TAG
&& parser.getName().equalsIgnoreCase(EntityCapsManager.ELEMENT)) {
hash = parser.getAttributeValue(null, "hash");
version = parser.getAttributeValue(null, "ver");
node = parser.getAttributeValue(null, "node");
} else {
throw new XMPPException("Malformed Caps element");
}
parser.next();
if (!(parser.getEventType() == XmlPullParser.END_TAG
&& parser.getName().equalsIgnoreCase(EntityCapsManager.ELEMENT))) {
throw new XMPPException("Malformed nested Caps element");
}
if (version != null && node != null) {
return new CapsExtension(node, version, Strings.getNotEmpty(hash, ""));
} else {
throw new XMPPException("Caps element with missing attributes");
}
}
private static void copy(@Nonnull AFunction target, @Nonnull IFunction source) {
target.name = source.getName();
target.content = source.getContent();
target.description = Strings.getNotEmpty(source.getDescription(), "");
target.system = source.isSystem();
if (source.isIdDefined()) {
target.id = source.getId();
}
target.parameterNames = new ArrayList<String>(source.getParameterNames());
}
@Nonnull
public AFunction create() throws AFunction.Builder.CreationException {
final AFunction result;
if (id != null) {
result = new AFunction(id);
} else {
result = new AFunction();
}
result.name = name;
try {
result.content = Locator.getInstance().getCalculator().prepareExpression(value).toString();
} catch (CalculatorParseException e) {
throw new CreationException(e);
}
result.system = system;
result.description = Strings.getNotEmpty(description, "");
result.parameterNames = new ArrayList<String>(parameterNames);
return result;
}
