private UserpWriter write(ValRegister.StoType sto, long val_i64, Object val_obj)
throws IOException {
if (nodeCodec == null) tupleState.tupleCodec.nextElement(this);
if (nodeCodecOverride != null) {
CustomCodec cc = nodeCodecOverride;
nodeCodecOverride = null;
cc.encode(this, sto, val_i64, val_obj);
} else if (sto == ValRegister.StoType.LONG) nodeCodec.writeValue(this, val_i64);
else nodeCodec.writeValue(this, val_obj);
nodeCodec = null;
return this;
}
public UserpWriter beginTuple(int elemCount) throws IOException {
if (nodeCodec == null) tupleState.tupleCodec.nextElement(this);
tupleStateStack.push(tupleState);
tupleState = new TupleStackEntry();
nodeCodec.beginTuple(this, elemCount);
return this;
}
@SuppressWarnings("unchecked")
public <K, V> Map<K, V> getMap(int i, Class<K> keysClass, Class<V> valuesClass) {
DataType type = metadata.getType(i);
if (type.getName() != DataType.Name.MAP)
throw new InvalidTypeException(
String.format("Column %s is not of map type", metadata.getName(i)));
Class<?> expectedKeysClass = type.getTypeArguments().get(0).getName().javaType;
Class<?> expectedValuesClass = type.getTypeArguments().get(1).getName().javaType;
if (!keysClass.isAssignableFrom(expectedKeysClass)
|| !valuesClass.isAssignableFrom(expectedValuesClass))
throw new InvalidTypeException(
String.format(
"Column %s is a map of %s->%s (CQL type %s), cannot be retrieve as a map of %s->%s",
metadata.getName(i),
expectedKeysClass,
expectedValuesClass,
type,
keysClass,
valuesClass));
ByteBuffer value = data.get(i);
if (value == null) return Collections.<K, V>emptyMap();
return Collections.unmodifiableMap(Codec.<Map<K, V>>getCodec(type).compose(value));
}
static ColumnMetadata build(TableMetadata tm, Row row) {
try {
String name = row.getString(COLUMN_NAME);
AbstractType<?> t = TypeParser.parse(row.getString(VALIDATOR));
ColumnMetadata cm = new ColumnMetadata(tm, name, Codec.rawTypeToDataType(t), row);
tm.add(cm);
return cm;
} catch (RequestValidationException e) {
// The server will have validated the type
throw new RuntimeException(e);
}
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Row[");
for (int i = 0; i < metadata.size(); i++) {
if (i != 0) sb.append(", ");
ByteBuffer bb = data.get(i);
if (bb == null) sb.append("NULL");
else sb.append(Codec.getCodec(metadata.getType(i)).getString(bb));
}
sb.append("]");
return sb.toString();
}
@SuppressWarnings("unchecked")
public <T> Set<T> getSet(int i, Class<T> elementsClass) {
DataType type = metadata.getType(i);
if (type.getName() != DataType.Name.SET)
throw new InvalidTypeException(
String.format("Column %s is not of set type", metadata.getName(i)));
Class<?> expectedClass = type.getTypeArguments().get(0).getName().javaType;
if (!elementsClass.isAssignableFrom(expectedClass))
throw new InvalidTypeException(
String.format(
"Column %s is a set of %s (CQL type %s), cannot be retrieve as a set of %s",
metadata.getName(i), expectedClass, type, elementsClass));
ByteBuffer value = data.get(i);
if (value == null) return Collections.<T>emptySet();
return Collections.unmodifiableSet(Codec.<Set<T>>getCodec(type).compose(value));
}
@SuppressWarnings("unchecked")
public <T> List<T> getList(int i, Class<T> elementsClass) {
DataType type = metadata.getType(i);
if (type.getName() != DataType.Name.LIST)
throw new InvalidTypeException(
String.format("Column %s is not of list type", metadata.getName(i)));
Class<?> expectedClass = type.getTypeArguments().get(0).getName().javaType;
if (!elementsClass.isAssignableFrom(expectedClass))
throw new InvalidTypeException(
String.format(
"Column %s is a list of %s (CQL type %s), cannot be retrieve as a list of %s",
metadata.getName(i), expectedClass, type, elementsClass));
ByteBuffer value = data.get(i);
if (value == null) return Collections.<T>emptyList();
// TODO: we could avoid the getCodec call if we kept a reference to the original message.
return Collections.unmodifiableList(Codec.<List<T>>getCodec(type).compose(value));
}
public UserpWriter select(CodecDescriptor unionMemberDesc) throws IOException {
if (nodeCodec == null) tupleState.tupleCodec.nextElement(this);
nodeCodec.selectType(this, unionMemberDesc);
return this;
}
public UserpWriter select(UserpType memberType) throws IOException {
if (nodeCodec == null) tupleState.tupleCodec.nextElement(this);
nodeCodec.selectType(this, memberType);
return this;
}
static Definition fromTransportSpecification(ColumnSpecification spec) {
return new Definition(
spec.ksName, spec.cfName, spec.name.toString(), Codec.rawTypeToDataType(spec.type));
}