@SuppressWarnings("unchecked")
public <E extends Enum<E>> Getter<GettableByIndexData, E> enumGetter(
DatastaxColumnKey key, Class<?> enumClass) {
if (key.getDataType() != null) {
final Class<?> javaClass = key.getDataType() != null ? key.getDataType().asJavaClass() : null;
if (Number.class.isAssignableFrom(javaClass)) {
return new OrdinalEnumGetter<GettableByIndexData, E>(
new DatastaxIntegerGetter(key.getIndex()), (Class<E>) enumClass);
} else if (String.class.equals(javaClass)) {
return new StringEnumGetter<GettableByIndexData, E>(
new DatastaxStringGetter(key.getIndex()), (Class<E>) enumClass);
}
} else {
return new EnumUnspecifiedTypeGetter<GettableByIndexData, E>(
new DatastaxObjectGetter(key.getIndex()), (Class<E>) enumClass);
}
return null;
}
@SuppressWarnings("unchecked")
@Override
public <P> Getter<GettableByIndexData, P> newGetter(
Type target, DatastaxColumnKey key, ColumnDefinition<?, ?> columnDefinition) {
Class<?> targetClass = TypeHelper.toClass(target);
if (Date.class.equals(targetClass)) {
return (Getter<GettableByIndexData, P>) new DatastaxDateGetter(key.getIndex());
}
if (boolean.class.equals(targetClass) || Boolean.class.equals(targetClass)) {
return (Getter<GettableByIndexData, P>) new DatastaxBooleanGetter(key.getIndex());
}
if (InetAddress.class.equals(targetClass)) {
return (Getter<GettableByIndexData, P>) new DatastaxInetAddressGetter(key.getIndex());
}
if (TupleValue.class.equals(targetClass)) {
return (Getter<GettableByIndexData, P>) new DatastaxTupleValueGetter(key.getIndex());
}
if (Collection.class.isAssignableFrom(targetClass)) {
Type elementType = TypeHelper.getComponentTypeOfListOrArray(target);
Class<?> dataTypeClass = Object.class;
Class<?> dataTypeElt = null;
DataType dtElt = null;
if (key.getDataType() != null) {
DataType dataType = key.getDataType();
dataTypeClass = dataType.asJavaClass();
if (dataType.isCollection()) {
dtElt = key.getDataType().getTypeArguments().get(0);
dataTypeElt = dtElt.asJavaClass();
}
} else {
dataTypeElt = TypeHelper.toClass(elementType);
}
if (dataTypeElt != null) {
if (TypeHelper.areEquals(elementType, dataTypeElt)) {
if (Set.class.equals(dataTypeClass)) {
if (targetClass.isAssignableFrom(dataTypeClass)) {
return new DatastaxSetGetter(key.getIndex(), TypeHelper.toClass(elementType));
}
}
if (List.class.equals(dataTypeClass)) {
if (targetClass.isAssignableFrom(dataTypeClass)) {
return new DatastaxListGetter(key.getIndex(), TypeHelper.toClass(elementType));
}
}
} else {
Converter<?, ?> converter = getConverter(elementType, dataTypeElt, dtElt);
if (converter != null) {
if (Set.class.equals(dataTypeClass)) {
if (targetClass.isAssignableFrom(dataTypeClass)) {
return new DatastaxSetWithConverterGetter(key.getIndex(), dataTypeElt, converter);
}
}
if (List.class.equals(dataTypeClass)) {
if (targetClass.isAssignableFrom(dataTypeClass)) {
return new DatastaxListWithConverterGetter(key.getIndex(), dataTypeElt, converter);
}
}
}
}
}
}
if (Map.class.equals(targetClass)) {
Tuple2<Type, Type> keyValueTypeOfMap = TypeHelper.getKeyValueTypeOfMap(target);
Class<?> dtKeyType = null;
Class<?> dtValueType = null;
DataType dtKey = null;
DataType dtValue = null;
if (key.getDataType() != null) {
List<DataType> typeArguments = key.getDataType().getTypeArguments();
if (typeArguments.size() == 2) {
dtKey = typeArguments.get(0);
dtKeyType = dtKey.asJavaClass();
dtValue = typeArguments.get(1);
dtValueType = dtValue.asJavaClass();
}
} else {
dtKeyType = TypeHelper.toClass(keyValueTypeOfMap.first());
dtValueType = TypeHelper.toClass(keyValueTypeOfMap.second());
}
if (dtKeyType != null && dtValueType != null) {
if (TypeHelper.areEquals(keyValueTypeOfMap.first(), dtKeyType)
&& TypeHelper.areEquals(keyValueTypeOfMap.second(), dtValueType)) {
return new DatastaxMapGetter(
key.getIndex(),
TypeHelper.toClass(keyValueTypeOfMap.first()),
TypeHelper.toClass(keyValueTypeOfMap.second()));
} else {
Converter<?, ?> keyConverter = getConverter(keyValueTypeOfMap.first(), dtKeyType, dtKey);
Converter<?, ?> valueConverter =
getConverter(keyValueTypeOfMap.second(), dtValueType, dtValue);
if (keyConverter != null && valueConverter != null) {
return new DatastaxMapWithConverterGetter(
key.getIndex(), dtKeyType, dtValueType, keyConverter, valueConverter);
}
}
}
}
if (Tuples.isTuple(target)) {
if (key.getDataType() != null && key.getDataType() instanceof TupleType) {
TupleType tt = (TupleType) key.getDataType();
List<DataType> typeArguments = tt.getTypeArguments();
TypeVariable<? extends Class<?>>[] typeParameters = targetClass.getTypeParameters();
if (typeArguments.size() <= typeParameters.length) {
return (Getter<GettableByIndexData, P>)
DatastaxTupleGetter.newInstance(datastaxMapperFactory, target, tt, key.getIndex());
}
}
}
if (TypeHelper.isEnum(target)) {
final Getter<GettableByIndexData, ? extends Enum> getter =
enumGetter(key, TypeHelper.toClass(target));
if (getter != null) {
return (Getter<GettableByIndexData, P>) getter;
}
}
final GetterFactory<GettableByIndexData, DatastaxColumnKey> rowGetterFactory =
getterFactories.get(targetClass);
if (rowGetterFactory != null) {
return rowGetterFactory.newGetter(target, key, columnDefinition);
}
final Getter<GettableByIndexData, P> getter =
jodaTimeGetterFactory.newGetter(target, key, columnDefinition);
if (getter != null) {
return getter;
}
if (key.getDataType() != null && key.getDataType() instanceof UserType) {
UserType ut = (UserType) key.getDataType();
return (Getter<GettableByIndexData, P>)
DatastaxUDTGetter.newInstance(datastaxMapperFactory, target, ut, key.getIndex());
}
return null;
}