private void convertFunction(ExprFunction1 expr) {
logger.debug("convertFunction " + expr.toString());
if (expr instanceof E_Str) {
convertStr((E_Str) expr);
} else if (expr instanceof E_IsIRI) {
convertIsIRI((E_IsIRI) expr);
} else if (expr instanceof E_IsBlank) {
convertIsBlank((E_IsBlank) expr);
} else if (expr instanceof E_IsLiteral) {
convertIsLiteral((E_IsLiteral) expr);
} else if (expr instanceof E_Datatype) {
convertDataType((E_Datatype) expr);
} else if (expr instanceof E_Lang) {
convertLang((E_Lang) expr);
} else if (expr instanceof E_LogicalNot) {
convertLogicalNot((E_LogicalNot) expr);
} else if (expr instanceof E_UnaryPlus) {
convert((E_UnaryPlus) expr);
} else if (expr instanceof E_UnaryMinus) {
convert((E_UnaryMinus) expr);
} else if (extensionSupports(expr)) {
expr.getArg(1).visit(this);
Expression e1 = expression.pop();
List<Expression> args = Collections.singletonList(e1);
extensionConvert(expr, args);
} else {
conversionFailed(expr);
}
}
@Override
public void visit(ExprFunction1 func) {
if (func instanceof E_Bound) {
TermMap boundCheck = tms.pop();
tms.push(translateIsBound(boundCheck));
} else if (func instanceof E_LogicalNot) {
TermMap notCheck = tms.pop();
Expression bool = DataTypeHelper.uncast(notCheck.getLiteralValBool());
if (bool instanceof IsNullExpression) {
((IsNullExpression) bool).setNot(!((IsNullExpression) bool).isNot());
} else {
Parenthesis parenthesis = new Parenthesis(bool);
parenthesis.setNot();
notCheck = tmf.createBoolTermMap(parenthesis);
}
tms.push(notCheck);
} else if (func instanceof E_Lang) {
TermMap langFunc = tms.pop();
Expression lang = DataTypeHelper.uncast(langFunc.getLiteralLang());
TermMap langTermMap = tmf.createStringTermMap(lang);
tms.push(langTermMap);
} else if (func instanceof E_Str) {
TermMap strParam = tms.pop();
// create the coalesce function here
List<Expression> strExpressions = new ArrayList<Expression>();
strExpressions.add(
dth.cast(
DataTypeHelper.uncast(strParam.getLiteralValBinary()), dth.getStringCastType()));
strExpressions.add(
dth.cast(DataTypeHelper.uncast(strParam.getLiteralValBool()), dth.getStringCastType()));
strExpressions.add(
dth.cast(DataTypeHelper.uncast(strParam.getLiteralValDate()), dth.getStringCastType()));
strExpressions.add(
dth.cast(
DataTypeHelper.uncast(strParam.getLiteralValNumeric()), dth.getStringCastType()));
strExpressions.add(
dth.cast(
DataTypeHelper.uncast(strParam.getLiteralValString()), dth.getStringCastType()));
strExpressions.add(FilterUtil.concat(strParam.getExpressions().toArray(new Expression[0])));
Expression toString = FilterUtil.coalesce(strExpressions.toArray(new Expression[0]));
tms.push(tmf.createStringTermMap(toString));
} else if (func instanceof E_IsBlank) {
TermMap isBlank = tms.pop();
EqualsTo eq = new EqualsTo();
eq.setLeftExpression(isBlank.getTermType());
eq.setRightExpression(new StringValue("'" + ColumnHelper.COL_VAL_TYPE_BLANK + "'"));
tms.push(tmf.createBoolTermMap(eq));
} else if (func instanceof E_IsIRI) {
TermMap isIri = tms.pop();
EqualsTo eq = new EqualsTo();
eq.setLeftExpression(isIri.getTermType());
eq.setRightExpression(new StringValue("'" + ColumnHelper.COL_VAL_TYPE_RESOURCE + "'"));
tms.push(tmf.createBoolTermMap(eq));
} else if (func instanceof E_IsLiteral) {
TermMap isLiteral = tms.pop();
EqualsTo eq = new EqualsTo();
eq.setLeftExpression(isLiteral.getTermType());
eq.setRightExpression(new StringValue("'" + ColumnHelper.COL_VAL_TYPE_LITERAL + "'"));
tms.push(tmf.createBoolTermMap(eq));
} else {
throw new ImplementationException("Implement Conversion for " + func.toString());
}
}