@SuppressWarnings({"rawtypes", "unchecked"})
public static FilterConditionContext visit(
In obj, QueryBuilder queryBuilder, FilterConditionBeginContext fcbc)
throws TranslatorException {
LogManager.logTrace(LogConstants.CTX_CONNECTOR, "Parsing IN criteria."); // $NON-NLS-1$
Expression lhs = obj.getLeftExpression();
List<Expression> rhsList = obj.getRightExpressions();
List v = new ArrayList(rhsList.size());
// = Arrays.asList(1
boolean createdQuery = false;
for (Expression expr : rhsList) {
if (expr instanceof Literal) {
Literal literal = (Literal) expr;
Object value = escapeReservedChars(literal.getValue());
v.add(value);
createdQuery = true;
} else {
throw new TranslatorException(
InfinispanPlugin.Util.gs(InfinispanPlugin.Event.TEIID25052, new Object[] {expr, "IN"}));
}
}
if (createdQuery) {
Column col = ((ColumnReference) lhs).getMetadataObject();
if (fcbc == null) {
if (obj.isNegated()) {
return queryBuilder.not().having(col.getSourceName()).in(v);
}
return queryBuilder.having(col.getSourceName()).in(v);
}
if (obj.isNegated()) {
return fcbc.not().having(col.getSourceName()).in(v);
}
return fcbc.having(col.getSourceName()).in(v);
}
return null;
}
@SuppressWarnings("rawtypes")
public static FilterConditionContext visit(
IsNull obj, QueryBuilder queryBuilder, FilterConditionBeginContext fcbc) {
LogManager.logTrace(LogConstants.CTX_CONNECTOR, "Parsing IsNull criteria."); // $NON-NLS-1$
Expression exp = obj.getExpression();
Column c = ((ColumnReference) exp).getMetadataObject();
if (fcbc == null) {
if (obj.isNegated()) {
return queryBuilder.not().having(c.getSourceName()).isNull();
}
return queryBuilder.having(c.getSourceName()).isNull();
}
if (obj.isNegated()) {
return fcbc.not().having(c.getSourceName()).isNull();
}
return fcbc.having(c.getSourceName()).isNull();
}
@SuppressWarnings("rawtypes")
public static FilterConditionContext visit(
Like obj, QueryBuilder queryBuilder, FilterConditionBeginContext fcbc)
throws TranslatorException {
LogManager.logTrace(LogConstants.CTX_CONNECTOR, "Parsing LIKE criteria."); // $NON-NLS-1$
Expression lhs = obj.getLeftExpression();
Expression rhs = obj.getRightExpression();
Column c = null;
Expression literalExp = null;
if (lhs instanceof ColumnReference) {
c = ((ColumnReference) lhs).getMetadataObject();
literalExp = rhs;
} else {
c = ((ColumnReference) rhs).getMetadataObject();
literalExp = lhs;
}
String value = null;
if (literalExp instanceof Literal) {
value = (String) escapeReservedChars(((Literal) literalExp).getValue());
if (fcbc == null) {
if (obj.isNegated()) {
return queryBuilder.not().having(c.getSourceName()).like(value);
}
return queryBuilder.having(c.getSourceName()).like(value);
}
if (obj.isNegated()) {
return fcbc.not().having(c.getSourceName()).like(value);
}
return fcbc.having(c.getSourceName()).like(value);
}
throw new TranslatorException(
InfinispanPlugin.Util.gs(
InfinispanPlugin.Event.TEIID25052, new Object[] {literalExp.toString(), "LIKE"}));
}
@SuppressWarnings("rawtypes")
public static FilterConditionContext visit(
Comparison obj, QueryBuilder queryBuilder, FilterConditionBeginContext fcbc)
throws TranslatorException {
LogManager.logTrace(LogConstants.CTX_CONNECTOR, "Parsing Comparison criteria."); // $NON-NLS-1$
Comparison.Operator op = obj.getOperator();
Expression lhs = obj.getLeftExpression();
Expression rhs = obj.getRightExpression();
// joins between the objects in the same cache is not usable
if ((lhs instanceof ColumnReference && rhs instanceof ColumnReference)
|| (lhs instanceof Literal && rhs instanceof Literal)) {
return null;
}
Object value = null;
Column mdIDElement = null;
Literal literal = null;
if (lhs instanceof ColumnReference) {
mdIDElement = ((ColumnReference) lhs).getMetadataObject();
literal = (Literal) rhs;
value = literal.getValue();
} else if (rhs instanceof ColumnReference) {
mdIDElement = ((ColumnReference) rhs).getMetadataObject();
literal = (Literal) lhs;
value = literal.getValue();
}
if (value == null) {
throw new TranslatorException(InfinispanPlugin.Util.gs(InfinispanPlugin.Event.TEIID25051));
}
value = escapeReservedChars(value);
switch (op) {
case NE:
if (fcbc == null) {
return queryBuilder.not().having(mdIDElement.getSourceName()).eq(value);
}
return fcbc.not().having(mdIDElement.getSourceName()).eq(value);
case EQ:
if (fcbc == null) {
return queryBuilder.having(mdIDElement.getSourceName()).eq(value);
}
return fcbc.having(mdIDElement.getSourceName()).eq(value);
case GT:
if (fcbc == null) {
return queryBuilder.having(mdIDElement.getSourceName()).gt(value);
}
return fcbc.having(mdIDElement.getSourceName()).gt(value);
case GE:
if (fcbc == null) {
return queryBuilder.having(mdIDElement.getSourceName()).gte(value);
}
return fcbc.having(mdIDElement.getSourceName()).gte(value);
case LT:
if (fcbc == null) {
return queryBuilder.having(mdIDElement.getSourceName()).lt(value);
}
return fcbc.having(mdIDElement.getSourceName()).lt(value);
case LE:
if (fcbc == null) {
return queryBuilder.having(mdIDElement.getSourceName()).lte(value);
}
return fcbc.having(mdIDElement.getSourceName()).lte(value);
default:
throw new TranslatorException(
InfinispanPlugin.Util.gs(
InfinispanPlugin.Event.TEIID25050, new Object[] {op, "NE, EQ, GT, GE, LT, LE"}));
}
}
private static FilterConditionContext buildQueryFromWhereClause(
Condition criteria,
@SuppressWarnings("rawtypes") QueryBuilder queryBuilder,
FilterConditionBeginContext fcbc)
throws TranslatorException {
if (criteria == null) return null;
FilterConditionContext fcc = null;
if (criteria instanceof AndOr) {
LogManager.logTrace(
LogConstants.CTX_CONNECTOR, "Infinispan DSL Parsing compound criteria."); // $NON-NLS-1$
AndOr crit = (AndOr) criteria;
AndOr.Operator op = crit.getOperator();
switch (op) {
case AND:
FilterConditionContext f_and =
buildQueryFromWhereClause(crit.getLeftCondition(), queryBuilder, fcbc);
FilterConditionBeginContext fcbca = null;
if (f_and != null) {
fcbca = f_and.and();
}
fcc = buildQueryFromWhereClause(crit.getRightCondition(), queryBuilder, fcbca);
break;
case OR:
FilterConditionContext f_or =
buildQueryFromWhereClause(crit.getLeftCondition(), queryBuilder, fcbc);
FilterConditionBeginContext fcbcb = null;
if (f_or != null) {
fcbcb = f_or.or();
}
fcc = buildQueryFromWhereClause(crit.getRightCondition(), queryBuilder, fcbcb);
break;
default:
throw new TranslatorException(
InfinispanPlugin.Util.gs(
InfinispanPlugin.Event.TEIID25050, new Object[] {op, "And, Or"}));
}
} else if (criteria instanceof Comparison) {
fcc = visit((Comparison) criteria, queryBuilder, fcbc);
} else if (criteria instanceof Like) {
fcc = visit((Like) criteria, queryBuilder, fcbc);
} else if (criteria instanceof In) {
fcc = visit((In) criteria, queryBuilder, fcbc);
} else if (criteria instanceof IsNull) {
fcc = visit((IsNull) criteria, queryBuilder, fcbc);
} else if (criteria instanceof Not) {
Condition c = ((Not) criteria).getCriteria();
if (fcbc == null) {
fcc = queryBuilder.not(buildQueryFromWhereClause(c, queryBuilder, fcbc));
} else {
fcc = fcbc.not(buildQueryFromWhereClause(c, queryBuilder, fcbc));
}
} else {
throw new TranslatorException(
InfinispanPlugin.Util.gs(InfinispanPlugin.Event.TEIID25054, criteria.toString()));
}
return fcc;
}