private void resolveClause(CubeQueryContext query, ASTNode node) throws LensException {
if (node == null) {
return;
}
int nodeType = node.getToken().getType();
if (nodeType == HiveParser.DOT) {
String colName = HQLParser.getColName(node).toLowerCase();
if (!pickedReferences.containsKey(colName)) {
return;
}
// No need to create a new node,
// replace the table name identifier and column name identifier
ASTNode tableNode = (ASTNode) node.getChild(0);
ASTNode tabident = HQLParser.findNodeByPath(node, TOK_TABLE_OR_COL, Identifier);
PickedReference refered = getPickedReference(colName, tabident.getText().toLowerCase());
if (refered == null) {
return;
}
ASTNode newTableNode =
new ASTNode(
new CommonToken(HiveParser.Identifier, refered.getChainRef().getChainName()));
tableNode.setChild(0, newTableNode);
ASTNode newColumnNode =
new ASTNode(
new CommonToken(HiveParser.Identifier, refered.getChainRef().getRefColumn()));
node.setChild(1, newColumnNode);
} else {
// recurse down
for (int i = 0; i < node.getChildCount(); i++) {
ASTNode child = (ASTNode) node.getChild(i);
resolveClause(query, child);
}
}
}
