/**
* Create an {@link Element } with type {@link RegexpType#LAMBDA } with proper constraints and
* metadata containing sentinel info. This kind of element is used when it was defined previously
* and it is unnecessary to build a rule subtree for it again (it is either a reference, or a leaf
* in recursion).
*
* @param domElem Node in the DOM tree from which the sentinel is made.
* @param context Context of the node in the rule tree.
* @param useAsName Name of the attribute to be used as a name of the new <code>Element</code>.
* @return Sentinel element.
* @throws XSDException Raise exception when schema contains errors.
* @see IGGUtils#METADATA_SENTINEL
*/
public static Element createSentinel(
final org.w3c.dom.Element domElem, final List<String> context, final XSDAttribute useAsName)
throws XSDException {
final Element sentinel = Element.getMutable();
if (XSDAttribute.NAME.equals(useAsName) || XSDAttribute.REF.equals(useAsName)) {
sentinel.setName(domElem.getAttribute(useAsName.toString()));
} else {
throw new XSDException(
NbBundle.getMessage(
DOMHelper.class,
"Error.SentinelWrongAttribute",
useAsName.toString(),
domElem.getTagName()));
}
if (BaseUtils.isEmpty(sentinel.getName())) {
throw new XSDException(NbBundle.getMessage(DOMHelper.class, "Error.SentinelNoName"));
}
if (XSDImportSettings.isVerbose()) {
LOG.debug(
NbBundle.getMessage(
DOMHelper.class, "Debug.CreatingSentinel", useAsName.toString(), sentinel.getName()));
}
sentinel.getContext().addAll(context);
sentinel.getMetadata().putAll(IGGUtils.METADATA_SENTINEL);
sentinel.getMetadata().putAll(IGGUtils.ATTR_FROM_SCHEMA);
sentinel.getSubnodes().setType(RegexpType.LAMBDA);
sentinel.setImmutable();
return sentinel;
}
/**
* Extract value of <i>name</i> or <i>ref</i> from an <i>attribute</i> tag.
*
* @param child Node containing the <i>attribute</i> tag.
* @return Value of tag attribute <i>name</i> or <i>ref</i> or empty string.
*/
public static String getAttributeName(final org.w3c.dom.Element child) {
final String name = child.getAttribute(XSDAttribute.NAME.toString());
final String ref = child.getAttribute(XSDAttribute.REF.toString());
if (!BaseUtils.isEmpty(name)) {
if (!BaseUtils.isEmpty(ref)) {
LOG.error(NbBundle.getMessage(DOMHelper.class, "Error.NameAndRef", name, ref));
}
return name;
} else if (!BaseUtils.isEmpty(ref)) {
return ref;
} else {
return "";
}
}