private static boolean typesEquals(DataType t1, DataType t2) {
if (t1.isCollection() && t2.isCollection()) {
final List<DataType> t1Args = t1.getTypeArguments();
final List<DataType> t2Args = t2.getTypeArguments();
if (t1Args.size() == t2Args.size()) {
boolean eq = true;
for (int i = 0; i < t1Args.size(); i++) {
eq &= typesEquals(t1Args.get(i), t2Args.get(i));
}
return eq;
}
}
final Class<?> jTableCls = t1.asJavaClass();
final Class<?> jColumnCls = t2.asJavaClass();
return Objects.equals(jTableCls, jColumnCls);
}
static boolean isBuildInType(DataType dataType) {
if (dataType.isCollection()) {
for (DataType type : dataType.getTypeArguments()) {
if (!isBuildInType(type)) {
return false;
}
}
return true;
} else {
return DataType.allPrimitiveTypes().contains(dataType)
|| (TupleType.class.isAssignableFrom(dataType.getClass()));
}
}
@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;
}
/**
* @param datatype the db datatype
* @param udtValue the udt value
* @param fieldtype1 the field 1 type
* @param fieldtype2 the field 2 type
* @param fieldname the fieldname
* @return the mapped value or <code>null</code>
*/
public <T> Object fromUdtValue(
DataType datatype,
UDTValue udtValue,
Class<?> fieldtype1,
Class<?> fieldtype2,
String fieldname) {
final CodecRegistry codecRegistry = getCodecRegistry();
// build-in type
if (isBuildInType(datatype)) {
final TypeCodec<T> typeCodec = codecRegistry.codecFor(datatype);
try {
if (udtValue.isNull(fieldname)) return null;
return typeCodec.deserialize(udtValue.getBytesUnsafe(fieldname), protocolVersion);
} catch (IllegalArgumentException ex) {
return null;
}
// udt collection
} else if (datatype.isCollection()) {
// set
if (DataType.Name.SET == datatype.getName()) {
return fromUdtValues(
datatype.getTypeArguments().get(0),
ImmutableSet.copyOf(udtValue.getSet(fieldname, UDTValue.class)),
fieldtype2);
// list
} else if (DataType.Name.LIST == datatype.getName()) {
return fromUdtValues(
datatype.getTypeArguments().get(0),
ImmutableList.copyOf(udtValue.getList(fieldname, UDTValue.class)),
fieldtype2);
// map
} else {
if (isBuildInType(datatype.getTypeArguments().get(0))) {
return fromUdtValues(
datatype.getTypeArguments().get(0),
datatype.getTypeArguments().get(1),
ImmutableMap.<Object, Object>copyOf(
udtValue.getMap(fieldname, fieldtype1, UDTValue.class)),
fieldtype1,
fieldtype2);
} else if (isBuildInType(datatype.getTypeArguments().get(1))) {
return fromUdtValues(
datatype.getTypeArguments().get(0),
datatype.getTypeArguments().get(1),
ImmutableMap.<Object, Object>copyOf(
udtValue.getMap(fieldname, UDTValue.class, fieldtype2)),
fieldtype1,
fieldtype2);
} else {
return fromUdtValues(
datatype.getTypeArguments().get(0),
datatype.getTypeArguments().get(1),
ImmutableMap.<Object, Object>copyOf(
udtValue.getMap(fieldname, UDTValue.class, UDTValue.class)),
fieldtype1,
fieldtype2);
}
}
// udt
} else {
return fromUdtValue(datatype, udtValue, fieldtype1);
}
}
@SuppressWarnings("unchecked")
public Object toUdtValue(
Tablename tablename, MetadataCatalog catalog, DataType datatype, Object value) {
// build-in type (will not be converted)
if (isBuildInType(datatype)) {
return value;
// udt collection
} else if (datatype.isCollection()) {
// set
if (DataType.Name.SET == datatype.getName()) {
final DataType elementDataType = datatype.getTypeArguments().get(0);
final Set<Object> udt = Sets.newHashSet();
if (value != null) {
for (Object element : (Set<Object>) value) {
udt.add(toUdtValue(tablename, catalog, elementDataType, element));
}
}
return ImmutableSet.copyOf(udt);
// list
} else if (DataType.Name.LIST == datatype.getName()) {
final DataType elementDataType = datatype.getTypeArguments().get(0);
final List<Object> udt = Lists.newArrayList();
if (value != null) {
for (Object element : (List<Object>) value) {
udt.add(toUdtValue(tablename, catalog, elementDataType, element));
}
}
return ImmutableList.copyOf(udt);
// map
} else {
final DataType keyDataType = datatype.getTypeArguments().get(0);
final DataType valueDataType = datatype.getTypeArguments().get(1);
final Map<Object, Object> udt = Maps.newHashMap();
if (value != null) {
for (Entry<Object, Object> entry : ((Map<Object, Object>) value).entrySet()) {
udt.put(
toUdtValue(tablename, catalog, keyDataType, entry.getKey()),
toUdtValue(tablename, catalog, valueDataType, entry.getValue()));
}
}
return ImmutableMap.copyOf(udt);
}
// udt
} else {
if (value == null) {
return value;
} else {
final UserType usertype =
catalog.getUserType(tablename, ((UserType) datatype).getTypeName());
final UDTValue udtValue = usertype.newValue();
for (Entry<String, Optional<Object>> entry :
beanMapper.toValues(value, ImmutableSet.<String>of()).entrySet()) {
if (!entry.getValue().isPresent()) {
// return null;
udtValue.setToNull(entry.getKey());
continue;
}
final DataType fieldType = usertype.getFieldType(entry.getKey());
Object vl = entry.getValue().get();
if (!isBuildInType(usertype.getFieldType(entry.getKey()))) {
vl = toUdtValue(tablename, catalog, fieldType, vl);
}
final String key = entry.getKey();
udtValue.setBytesUnsafe(key, serialize(fieldType, vl));
}
return udtValue;
}
}
}