Comparable<?> getOperatorPredicateValue(
OperatorPredicate predicate, Map<String, Comparable<?>> parameterMap) {
Comparable<?> value = predicate.getValue();
if (value instanceof String) {
String stringValue = (String) value;
if ((stringValue.charAt(0) == '?') && (stringValue.charAt(stringValue.length() - 1) == '?')) {
String parameterName = stringValue.substring(1, stringValue.length() - 1);
value = parameterMap.get(parameterName);
}
}
return value;
}
NoSqlPredicate convertPredicate(
IPredicate predicate, String tableName, Map<String, Comparable<?>> parameterMap) {
if (predicate == null) return null;
NoSqlPredicate convertedPredicate = null;
if (predicate instanceof CompoundPredicate) {
CompoundPredicate compoundPredicate = (CompoundPredicate) predicate;
ArrayList<NoSqlPredicate> noSqlPredicateList = new ArrayList<NoSqlPredicate>();
for (IPredicate childPredicate : compoundPredicate.getPredicateList()) {
boolean incorporated = false;
if (childPredicate instanceof OperatorPredicate) {
OperatorPredicate childOperatorPredicate = (OperatorPredicate) childPredicate;
for (NoSqlPredicate childNoSqlPredicate : noSqlPredicateList) {
incorporated =
childNoSqlPredicate.incorporateComparison(
childOperatorPredicate.getColumnName(),
childOperatorPredicate.getOperator(),
getOperatorPredicateValue(childOperatorPredicate, parameterMap),
compoundPredicate.getOperator());
if (incorporated) break;
}
}
if (!incorporated) {
NoSqlPredicate noSqlPredicate = convertPredicate(childPredicate, tableName, parameterMap);
noSqlPredicateList.add(noSqlPredicate);
}
}
convertedPredicate =
new NoSqlCompoundPredicate(
this,
tableName,
compoundPredicate.getOperator(),
compoundPredicate.isNegated(),
noSqlPredicateList);
} else if (predicate instanceof OperatorPredicate) {
OperatorPredicate operatorPredicate = (OperatorPredicate) predicate;
Comparable<?> value = getOperatorPredicateValue(operatorPredicate, parameterMap);
switch (operatorPredicate.getOperator()) {
case EQ:
convertedPredicate =
new NoSqlRangePredicate(
this, tableName, operatorPredicate.getColumnName(), value, true, value, true);
break;
case LT:
convertedPredicate =
new NoSqlRangePredicate(
this, tableName, operatorPredicate.getColumnName(), null, false, value, false);
break;
case LTE:
convertedPredicate =
new NoSqlRangePredicate(
this, tableName, operatorPredicate.getColumnName(), null, false, value, true);
break;
case GT:
convertedPredicate =
new NoSqlRangePredicate(
this, tableName, operatorPredicate.getColumnName(), value, false, null, false);
break;
case GTE:
convertedPredicate =
new NoSqlRangePredicate(
this, tableName, operatorPredicate.getColumnName(), value, true, null, false);
break;
default:
convertedPredicate =
new NoSqlOperatorPredicate(
this, operatorPredicate.getColumnName(), operatorPredicate.getOperator(), value);
}
} else {
throw new StorageException("Unknown predicate type");
}
return convertedPredicate;
}
