public void collectionSerDeserTest(int version) throws Exception {
// Lists
ListType<?> lt = ListType.getInstance(Int32Type.instance, true);
List<Integer> l = Arrays.asList(2, 6, 1, 9);
List<ByteBuffer> lb = new ArrayList<>(l.size());
for (Integer i : l) lb.add(Int32Type.instance.decompose(i));
assertEquals(
l,
lt.getSerializer()
.deserializeForNativeProtocol(
CollectionSerializer.pack(lb, lb.size(), version), version));
// Sets
SetType<?> st = SetType.getInstance(UTF8Type.instance, true);
Set<String> s = new LinkedHashSet<>();
s.addAll(Arrays.asList("bar", "foo", "zee"));
List<ByteBuffer> sb = new ArrayList<>(s.size());
for (String t : s) sb.add(UTF8Type.instance.decompose(t));
assertEquals(
s,
st.getSerializer()
.deserializeForNativeProtocol(
CollectionSerializer.pack(sb, sb.size(), version), version));
// Maps
MapType<?, ?> mt = MapType.getInstance(UTF8Type.instance, LongType.instance, true);
Map<String, Long> m = new LinkedHashMap<>();
m.put("bar", 12L);
m.put("foo", 42L);
m.put("zee", 14L);
List<ByteBuffer> mb = new ArrayList<>(m.size() * 2);
for (Map.Entry<String, Long> entry : m.entrySet()) {
mb.add(UTF8Type.instance.decompose(entry.getKey()));
mb.add(LongType.instance.decompose(entry.getValue()));
}
assertEquals(
m,
mt.getSerializer()
.deserializeForNativeProtocol(
CollectionSerializer.pack(mb, m.size(), version), version));
}
// Column definitions
private Map<ByteBuffer, ColumnDefinition> getColumns() {
Map<ByteBuffer, ColumnDefinition> columnDefs = new HashMap<ByteBuffer, ColumnDefinition>();
Integer componentIndex = null;
if (comparator instanceof CompositeType) {
CompositeType ct = (CompositeType) comparator;
componentIndex =
ct.types.get(ct.types.size() - 1) instanceof ColumnToCollectionType
? ct.types.size() - 2
: ct.types.size() - 1;
}
for (Map.Entry<ColumnIdentifier, AbstractType> col : columns.entrySet()) {
ColumnIdentifier id = col.getKey();
columnDefs.put(
id.key,
staticColumns.contains(id)
? ColumnDefinition.staticDef(id.key, col.getValue(), componentIndex)
: ColumnDefinition.regularDef(id.key, col.getValue(), componentIndex));
}
return columnDefs;
}
/** Transform this raw statement into a CreateTableStatement. */
public ParsedStatement.Prepared prepare() throws RequestValidationException {
// Column family name
if (!columnFamily().matches("\\w+"))
throw new InvalidRequestException(
String.format(
"\"%s\" is not a valid column family name (must be alphanumeric character only: [0-9A-Za-z]+)",
columnFamily()));
if (columnFamily().length() > Schema.NAME_LENGTH)
throw new InvalidRequestException(
String.format(
"Column family names shouldn't be more than %s characters long (got \"%s\")",
Schema.NAME_LENGTH, columnFamily()));
for (Multiset.Entry<ColumnIdentifier> entry : definedNames.entrySet())
if (entry.getCount() > 1)
throw new InvalidRequestException(
String.format("Multiple definition of identifier %s", entry.getElement()));
properties.validate();
CreateTableStatement stmt =
new CreateTableStatement(cfName, properties, ifNotExists, staticColumns);
Map<ByteBuffer, CollectionType> definedCollections = null;
for (Map.Entry<ColumnIdentifier, CQL3Type> entry : definitions.entrySet()) {
ColumnIdentifier id = entry.getKey();
CQL3Type pt = entry.getValue();
if (pt.isCollection()) {
if (definedCollections == null)
definedCollections = new HashMap<ByteBuffer, CollectionType>();
definedCollections.put(id.key, (CollectionType) pt.getType());
}
stmt.columns.put(id, pt.getType()); // we'll remove what is not a column below
}
if (keyAliases.isEmpty())
throw new InvalidRequestException("No PRIMARY KEY specifed (exactly one required)");
else if (keyAliases.size() > 1)
throw new InvalidRequestException("Multiple PRIMARY KEYs specifed (exactly one required)");
List<ColumnIdentifier> kAliases = keyAliases.get(0);
List<AbstractType<?>> keyTypes = new ArrayList<AbstractType<?>>(kAliases.size());
for (ColumnIdentifier alias : kAliases) {
stmt.keyAliases.add(alias.key);
AbstractType<?> t = getTypeAndRemove(stmt.columns, alias);
if (t instanceof CounterColumnType)
throw new InvalidRequestException(
String.format("counter type is not supported for PRIMARY KEY part %s", alias));
if (staticColumns.contains(alias))
throw new InvalidRequestException(
String.format("Static column %s cannot be part of the PRIMARY KEY", alias));
keyTypes.add(t);
}
stmt.keyValidator =
keyTypes.size() == 1 ? keyTypes.get(0) : CompositeType.getInstance(keyTypes);
// Dense means that no part of the comparator stores a CQL column name. This means
// COMPACT STORAGE with at least one columnAliases (otherwise it's a thrift "static" CF).
stmt.isDense = useCompactStorage && !columnAliases.isEmpty();
// Handle column aliases
if (columnAliases.isEmpty()) {
if (useCompactStorage) {
// There should remain some column definition since it is a non-composite "static" CF
if (stmt.columns.isEmpty())
throw new InvalidRequestException(
"No definition found that is not part of the PRIMARY KEY");
if (definedCollections != null)
throw new InvalidRequestException(
"Collection types are not supported with COMPACT STORAGE");
stmt.comparator = CFDefinition.definitionType;
} else {
List<AbstractType<?>> types =
new ArrayList<AbstractType<?>>(definedCollections == null ? 1 : 2);
types.add(CFDefinition.definitionType);
if (definedCollections != null)
types.add(ColumnToCollectionType.getInstance(definedCollections));
stmt.comparator = CompositeType.getInstance(types);
}
} else {
// If we use compact storage and have only one alias, it is a
// standard "dynamic" CF, otherwise it's a composite
if (useCompactStorage && columnAliases.size() == 1) {
if (definedCollections != null)
throw new InvalidRequestException(
"Collection types are not supported with COMPACT STORAGE");
ColumnIdentifier alias = columnAliases.get(0);
stmt.columnAliases.add(alias.key);
stmt.comparator = getTypeAndRemove(stmt.columns, alias);
if (stmt.comparator instanceof CounterColumnType)
throw new InvalidRequestException(
String.format("counter type is not supported for PRIMARY KEY part %s", alias));
if (staticColumns.contains(alias))
throw new InvalidRequestException(
String.format("Static column %s cannot be part of the PRIMARY KEY", alias));
} else {
List<AbstractType<?>> types = new ArrayList<AbstractType<?>>(columnAliases.size() + 1);
for (ColumnIdentifier t : columnAliases) {
stmt.columnAliases.add(t.key);
AbstractType<?> type = getTypeAndRemove(stmt.columns, t);
if (type instanceof CounterColumnType)
throw new InvalidRequestException(
String.format("counter type is not supported for PRIMARY KEY part %s", t));
if (staticColumns.contains(t))
throw new InvalidRequestException(
String.format("Static column %s cannot be part of the PRIMARY KEY", t));
types.add(type);
}
if (useCompactStorage) {
if (definedCollections != null)
throw new InvalidRequestException(
"Collection types are not supported with COMPACT STORAGE");
} else {
// For sparse, we must add the last UTF8 component
// and the collection type if there is one
types.add(CFDefinition.definitionType);
if (definedCollections != null)
types.add(ColumnToCollectionType.getInstance(definedCollections));
}
if (types.isEmpty())
throw new IllegalStateException("Nonsensical empty parameter list for CompositeType");
stmt.comparator = CompositeType.getInstance(types);
}
}
if (!staticColumns.isEmpty()) {
// Only CQL3 tables can have static columns
if (useCompactStorage)
throw new InvalidRequestException(
"Static columns are not supported in COMPACT STORAGE tables");
// Static columns only make sense if we have at least one clustering column. Otherwise
// everything is static anyway
if (columnAliases.isEmpty())
throw new InvalidRequestException(
"Static columns are only useful (and thus allowed) if the table has at least one clustering column");
}
if (useCompactStorage && !stmt.columnAliases.isEmpty()) {
if (stmt.columns.isEmpty()) {
// The only value we'll insert will be the empty one, so the default validator don't
// matter
stmt.defaultValidator = BytesType.instance;
// We need to distinguish between
// * I'm upgrading from thrift so the valueAlias is null
// * I've defined my table with only a PK (and the column value will be empty)
// So, we use an empty valueAlias (rather than null) for the second case
stmt.valueAlias = ByteBufferUtil.EMPTY_BYTE_BUFFER;
} else {
if (stmt.columns.size() > 1)
throw new InvalidRequestException(
String.format(
"COMPACT STORAGE with composite PRIMARY KEY allows no more than one column not part of the PRIMARY KEY (got: %s)",
StringUtils.join(stmt.columns.keySet(), ", ")));
Map.Entry<ColumnIdentifier, AbstractType> lastEntry =
stmt.columns.entrySet().iterator().next();
stmt.defaultValidator = lastEntry.getValue();
stmt.valueAlias = lastEntry.getKey().key;
stmt.columns.remove(lastEntry.getKey());
}
} else {
// For compact, we are in the "static" case, so we need at least one column defined. For
// non-compact however, having
// just the PK is fine since we have CQL3 row marker.
if (useCompactStorage && stmt.columns.isEmpty())
throw new InvalidRequestException(
"COMPACT STORAGE with non-composite PRIMARY KEY require one column not part of the PRIMARY KEY, none given");
// There is no way to insert/access a column that is not defined for non-compact storage, so
// the actual validator don't matter much (except that we want to recognize counter CF as
// limitation apply to them).
stmt.defaultValidator =
!stmt.columns.isEmpty()
&& (stmt.columns.values().iterator().next() instanceof CounterColumnType)
? CounterColumnType.instance
: BytesType.instance;
}
// If we give a clustering order, we must explicitly do so for all aliases and in the order of
// the PK
if (!definedOrdering.isEmpty()) {
if (definedOrdering.size() > columnAliases.size())
throw new InvalidRequestException(
"Only clustering key columns can be defined in CLUSTERING ORDER directive");
int i = 0;
for (ColumnIdentifier id : definedOrdering.keySet()) {
ColumnIdentifier c = columnAliases.get(i);
if (!id.equals(c)) {
if (definedOrdering.containsKey(c))
throw new InvalidRequestException(
String.format(
"The order of columns in the CLUSTERING ORDER directive must be the one of the clustering key (%s must appear before %s)",
c, id));
else
throw new InvalidRequestException(
String.format("Missing CLUSTERING ORDER for column %s", c));
}
++i;
}
}
return new ParsedStatement.Prepared(stmt);
}