/**
* jwestra: 3.x API change deserialize a single field in a UDTValue map
*
* @param dataType
* @param udtValue
* @param fieldname
* @return
*/
public <T> T deserialize(DataType dataType, UDTValue udtValue, String fieldname) {
final CodecRegistry codecRegistry = getCodecRegistry();
final TypeCodec<T> typeCodec = codecRegistry.codecFor(dataType);
return typeCodec.deserialize(udtValue.getBytesUnsafe(fieldname), protocolVersion);
}
/**
* @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;
}
}
}
