/**
* It is called when parser enters grammar rule (typedef), it perform validations and updates the
* data model tree.
*
* @param listener listener's object
* @param ctx context object of the grammar rule
*/
public static void processTypeDefEntry(
TreeWalkListener listener, GeneratedYangParser.TypedefStatementContext ctx) {
// Check for stack to be non empty.
checkStackIsNotEmpty(listener, MISSING_HOLDER, TYPEDEF_DATA, ctx.identifier().getText(), ENTRY);
String identifier = getValidIdentifier(ctx.identifier().getText(), TYPEDEF_DATA, ctx);
// Validate sub statement cardinality.
validateSubStatementsCardinality(ctx);
/*
* Create a derived type information, the base type must be set in type
* listener.
*/
YangTypeDef typeDefNode = getYangTypeDefNode(JAVA_GENERATION);
typeDefNode.setName(identifier);
Parsable curData = listener.getParsedDataStack().peek();
if (curData instanceof YangModule
|| curData instanceof YangSubModule
|| curData instanceof YangContainer
|| curData instanceof YangList
|| curData instanceof YangNotification
|| curData instanceof YangRpc
|| curData instanceof YangInput
|| curData instanceof YangOutput
|| curData instanceof YangGrouping) {
YangNode curNode = (YangNode) curData;
try {
curNode.addChild(typeDefNode);
} catch (DataModelException e) {
throw new ParserException(
constructExtendedListenerErrorMessage(
UNHANDLED_PARSED_DATA,
TYPEDEF_DATA,
ctx.identifier().getText(),
ENTRY,
e.getMessage()));
}
listener.getParsedDataStack().push(typeDefNode);
} else {
throw new ParserException(
constructListenerErrorMessage(
INVALID_HOLDER, TYPEDEF_DATA, ctx.identifier().getText(), ENTRY));
}
}
/**
* It is called when parser exits from grammar rule (typedef), it perform validations and updates
* the data model tree.
*
* @param listener listener's object
* @param ctx context object of the grammar rule
*/
public static void processTypeDefExit(
TreeWalkListener listener, GeneratedYangParser.TypedefStatementContext ctx) {
// Check for stack to be non empty.
checkStackIsNotEmpty(listener, MISSING_HOLDER, TYPEDEF_DATA, ctx.identifier().getText(), EXIT);
if (listener.getParsedDataStack().peek() instanceof YangTypeDef) {
YangTypeDef typeDefNode = (YangTypeDef) listener.getParsedDataStack().peek();
try {
typeDefNode.validateDataOnExit();
} catch (DataModelException e) {
throw new ParserException(
constructListenerErrorMessage(
INVALID_CONTENT, TYPEDEF_DATA, ctx.identifier().getText(), EXIT));
}
listener.getParsedDataStack().pop();
} else {
throw new ParserException(
constructListenerErrorMessage(
MISSING_CURRENT_HOLDER, TYPEDEF_DATA, ctx.identifier().getText(), EXIT));
}
}
/**
* Validates the cardinality of typedef sub-statements as per grammar.
*
* @param ctx context object of the grammar rule
*/
private static void validateSubStatementsCardinality(
GeneratedYangParser.TypedefStatementContext ctx) {
validateCardinalityMaxOne(
ctx.unitsStatement(), UNITS_DATA, TYPEDEF_DATA, ctx.identifier().getText());
validateCardinalityMaxOne(
ctx.defaultStatement(), DEFAULT_DATA, TYPEDEF_DATA, ctx.identifier().getText());
validateCardinalityEqualsOne(
ctx.typeStatement(), TYPE_DATA, TYPEDEF_DATA, ctx.identifier().getText(), ctx);
validateCardinalityMaxOne(
ctx.descriptionStatement(), DESCRIPTION_DATA, TYPEDEF_DATA, ctx.identifier().getText());
validateCardinalityMaxOne(
ctx.referenceStatement(), REFERENCE_DATA, TYPEDEF_DATA, ctx.identifier().getText());
validateCardinalityMaxOne(
ctx.statusStatement(), STATUS_DATA, TYPEDEF_DATA, ctx.identifier().getText());
}