@Override
public String check(int fieldId, Value value) throws DriverException {
// In order to build pk indexes
initializeEdition();
// Check special case of auto-increment not-null fields
Type type = getMetadata().getFieldType(fieldId);
boolean autoIncrement = type.getBooleanConstraint(Constraint.AUTO_INCREMENT);
if (autoIncrement && type.getBooleanConstraint(Constraint.NOT_NULL) && value.isNull()) {
return null;
}
int fieldType = type.getTypeCode();
// Test geometry types.
if (TypeFactory.isVectorial(type.getTypeCode())) {
int valueType = value.getType();
if (!checkGeometry(valueType, fieldType)) {
return "Can't put a "
+ TypeFactory.getTypeName(valueType)
+ " in a "
+ TypeFactory.getTypeName(fieldType)
+ " column.";
}
}
// Cast value
Value val = castValue(type, value);
int broadType = TypeFactory.getBroaderType(fieldType, val.getType());
if (val.getType() != broadType
&& val.getType() != Type.NULL
&& !checkGeometry(val.getType(), fieldType)
&& fieldType != Type.STRING) {
return "Can't cast a "
+ TypeFactory.getTypeName(value.getType())
+ " to a "
+ TypeFactory.getTypeName(fieldType);
}
// Check constraints
String fieldName = getMetadata().getFieldName(fieldId);
String error = type.check(value);
if (error != null) {
return "Value at field " + getFieldName(fieldId) + " is not valid:" + error;
}
// Check uniqueness
if (type.getBooleanConstraint(Constraint.UNIQUE) || type.getBooleanConstraint(Constraint.PK)) {
// We assume a geometry field can't have unique constraint
IndexQuery iq = new DefaultAlphaQuery(fieldName, value);
Iterator<Integer> it = queryIndex(iq);
while (it.hasNext()) {
if (getFieldValue(it.next(), fieldId).equals(value).getAsBoolean()) {
return fieldName + " column doesn't admit duplicates: " + value;
}
}
}
return null;
}
public static void failIfNotOfType(CustomQuery customQuery, Type type, int typeCode) {
if (type.getTypeCode() != typeCode) {
throw new IncompatibleTypesException(
"Function "
+ customQuery.getName()
+ " only operates with "
+ TypeFactory.getTypeName(typeCode)
+ " types. "
+ TypeFactory.getTypeName(type.getTypeCode())
+ " found");
}
}
public static void failIfNotNumeric(Function function, Type type)
throws IncompatibleTypesException {
if (!TypeFactory.isNumerical(type.getTypeCode())) {
throw new IncompatibleTypesException(
"Function "
+ function.getName()
+ " only operates with numerical types. "
+ TypeFactory.getTypeName(type.getTypeCode())
+ " found");
}
}
public static void failIfNotOfTypes(CustomQuery customQuery, Type type, int... typesCodes) {
for (int typeCode : typesCodes) {
if (type.getTypeCode() == typeCode) {
return;
}
}
throw new IncompatibleTypesException(
TypeFactory.getTypeName(type.getTypeCode())
+ " is not allowed with custom query "
+ customQuery.getName());
}
public static void failIfNotOfTypes(Function function, Type type, int... typesCodes)
throws IncompatibleTypesException {
for (int typeCode : typesCodes) {
if (type.getTypeCode() == typeCode) {
return;
}
}
throw new IncompatibleTypesException(
TypeFactory.getTypeName(type.getTypeCode())
+ " is not allowed with function "
+ function.getName());
}
public static void failIfNotNumeric(
final CustomQuery customQuery, final Type type, final int argNumber)
throws IncompatibleTypesException {
if (!TypeFactory.isNumerical(type.getTypeCode())) {
throw new IncompatibleTypesException(
customQuery.getName()
+ " requires a numerical type as argument number "
+ argNumber
+ ". "
+ TypeFactory.getTypeName(type.getTypeCode())
+ " found");
}
}
public static void failIfFieldIsNotOfType(
final CustomQuery customQuery,
final String fieldName,
final int fieldIndex,
final int typeCodeOfField,
final Metadata metadata)
throws DriverException, SemanticException {
failIfFieldDoesNotExist(customQuery, fieldName, fieldIndex, metadata);
final Type[] fieldTypes = MetadataUtilities.getFieldTypes(metadata);
if (typeCodeOfField != fieldTypes[fieldIndex].getTypeCode()) {
throw new IncompatibleTypesException(
customQuery.getName()
+ ": "
+ fieldName
+ " is not of type "
+ TypeFactory.getTypeName(typeCodeOfField));
}
}
