public CFDefinition(CFMetaData cfm) {
this.cfm = cfm;
if (cfm.getKeyValidator() instanceof CompositeType) {
this.hasCompositeKey = true;
CompositeType keyComposite = (CompositeType) cfm.getKeyValidator();
assert keyComposite.types.size() > 1;
for (int i = 0; i < keyComposite.types.size(); i++) {
ColumnIdentifier id = getKeyId(cfm, i);
this.keys.put(
id,
new Name(
cfm.ksName, cfm.cfName, id, Name.Kind.KEY_ALIAS, i, keyComposite.types.get(i)));
}
} else {
this.hasCompositeKey = false;
ColumnIdentifier id = getKeyId(cfm, 0);
this.keys.put(
id, new Name(cfm.ksName, cfm.cfName, id, Name.Kind.KEY_ALIAS, 0, cfm.getKeyValidator()));
}
if (cfm.comparator instanceof CompositeType) {
this.isComposite = true;
CompositeType composite = (CompositeType) cfm.comparator;
/*
* We are a "sparse" composite, i.e. a non-compact one, if either:
* - the last type of the composite is a ColumnToCollectionType
* - or we have one less alias than of composite types and the last type is UTF8Type.
*
* Note that this is not perfect: if someone upgrading from thrift "renames" all but
* the last column alias, the cf will be considered "sparse" and he will be stuck with
* that even though that might not be what he wants. But the simple workaround is
* for that user to rename all the aliases at the same time in the first place.
*/
int last = composite.types.size() - 1;
AbstractType<?> lastType = composite.types.get(last);
if (lastType instanceof ColumnToCollectionType
|| (cfm.getColumnAliases().size() == last && lastType instanceof UTF8Type)) {
// "sparse" composite
this.isCompact = false;
this.value = null;
assert cfm.getValueAlias() == null;
// check for collection type
if (lastType instanceof ColumnToCollectionType) {
--last;
this.hasCollections = true;
} else {
this.hasCollections = false;
}
for (int i = 0; i < last; i++) {
ColumnIdentifier id = getColumnId(cfm, i);
this.columns.put(
id,
new Name(
cfm.ksName, cfm.cfName, id, Name.Kind.COLUMN_ALIAS, i, composite.types.get(i)));
}
for (Map.Entry<ByteBuffer, ColumnDefinition> def : cfm.getColumn_metadata().entrySet()) {
ColumnIdentifier id =
new ColumnIdentifier(def.getKey(), cfm.getColumnDefinitionComparator(def.getValue()));
this.metadata.put(
id,
new Name(
cfm.ksName,
cfm.cfName,
id,
Name.Kind.COLUMN_METADATA,
def.getValue().getValidator()));
}
} else {
// "dense" composite
this.isCompact = true;
this.hasCollections = false;
for (int i = 0; i < composite.types.size(); i++) {
ColumnIdentifier id = getColumnId(cfm, i);
this.columns.put(
id,
new Name(
cfm.ksName, cfm.cfName, id, Name.Kind.COLUMN_ALIAS, i, composite.types.get(i)));
}
this.value = createValue(cfm);
}
} else {
this.isComposite = false;
this.hasCollections = false;
if (!cfm.getColumnAliases().isEmpty() || cfm.getColumn_metadata().isEmpty()) {
// dynamic CF
this.isCompact = true;
ColumnIdentifier id = getColumnId(cfm, 0);
Name name = new Name(cfm.ksName, cfm.cfName, id, Name.Kind.COLUMN_ALIAS, 0, cfm.comparator);
this.columns.put(id, name);
this.value = createValue(cfm);
} else {
// static CF
this.isCompact = false;
this.value = null;
assert cfm.getValueAlias() == null;
assert cfm.getColumnAliases() == null || cfm.getColumnAliases().isEmpty();
for (Map.Entry<ByteBuffer, ColumnDefinition> def : cfm.getColumn_metadata().entrySet()) {
ColumnIdentifier id =
new ColumnIdentifier(def.getKey(), cfm.getColumnDefinitionComparator(def.getValue()));
this.metadata.put(
id,
new Name(
cfm.ksName,
cfm.cfName,
id,
Name.Kind.COLUMN_METADATA,
def.getValue().getValidator()));
}
}
}
assert value == null || metadata.isEmpty();
}
public void announceMigration() throws RequestValidationException {
CFMetaData meta = validateColumnFamily(keyspace(), columnFamily());
CFMetaData cfm = meta.clone();
CFDefinition cfDef = meta.getCfDef();
CFDefinition.Name name = columnName == null ? null : cfDef.get(columnName);
switch (oType) {
case ADD:
if (cfDef.isCompact)
throw new InvalidRequestException("Cannot add new column to a compact CF");
if (name != null) {
switch (name.kind) {
case KEY_ALIAS:
case COLUMN_ALIAS:
throw new InvalidRequestException(
String.format(
"Invalid column name %s because it conflicts with a PRIMARY KEY part",
columnName));
case COLUMN_METADATA:
throw new InvalidRequestException(
String.format(
"Invalid column name %s because it conflicts with an existing column",
columnName));
}
}
AbstractType<?> type = validator.getType();
if (type instanceof CollectionType) {
if (!cfDef.isComposite)
throw new InvalidRequestException(
"Cannot use collection types with non-composite PRIMARY KEY");
Map<ByteBuffer, CollectionType> collections =
cfDef.hasCollections
? new HashMap<ByteBuffer, CollectionType>(cfDef.getCollectionType().defined)
: new HashMap<ByteBuffer, CollectionType>();
collections.put(columnName.key, (CollectionType) type);
ColumnToCollectionType newColType = ColumnToCollectionType.getInstance(collections);
List<AbstractType<?>> ctypes =
new ArrayList<AbstractType<?>>(((CompositeType) cfm.comparator).types);
if (cfDef.hasCollections) ctypes.set(ctypes.size() - 1, newColType);
else ctypes.add(newColType);
cfm.comparator = CompositeType.getInstance(ctypes);
}
Integer componentIndex =
cfDef.isComposite
? ((CompositeType) meta.comparator).types.size() - (cfDef.hasCollections ? 2 : 1)
: null;
cfm.addColumnDefinition(
new ColumnDefinition(columnName.key, type, null, null, null, componentIndex));
break;
case ALTER:
if (name == null)
throw new InvalidRequestException(
String.format("Column %s was not found in table %s", columnName, columnFamily()));
switch (name.kind) {
case KEY_ALIAS:
AbstractType<?> newType = validator.getType();
if (newType instanceof CounterColumnType)
throw new InvalidRequestException(
String.format(
"counter type is not supported for PRIMARY KEY part %s", columnName));
if (cfDef.hasCompositeKey) {
List<AbstractType<?>> newTypes =
new ArrayList<AbstractType<?>>(((CompositeType) cfm.getKeyValidator()).types);
newTypes.set(name.position, newType);
cfm.keyValidator(CompositeType.getInstance(newTypes));
} else {
cfm.keyValidator(newType);
}
break;
case COLUMN_ALIAS:
assert cfDef.isComposite;
List<AbstractType<?>> newTypes =
new ArrayList<AbstractType<?>>(((CompositeType) cfm.comparator).types);
newTypes.set(name.position, validator.getType());
cfm.comparator = CompositeType.getInstance(newTypes);
break;
case VALUE_ALIAS:
cfm.defaultValidator(validator.getType());
break;
case COLUMN_METADATA:
ColumnDefinition column = cfm.getColumnDefinition(columnName.key);
column.setValidator(validator.getType());
cfm.addColumnDefinition(column);
break;
}
break;
case DROP:
if (cfDef.isCompact)
throw new InvalidRequestException("Cannot drop columns from a compact CF");
if (name == null)
throw new InvalidRequestException(
String.format("Column %s was not found in table %s", columnName, columnFamily()));
switch (name.kind) {
case KEY_ALIAS:
case COLUMN_ALIAS:
throw new InvalidRequestException(
String.format("Cannot drop PRIMARY KEY part %s", columnName));
case COLUMN_METADATA:
ColumnDefinition toDelete = null;
for (ColumnDefinition columnDef : cfm.getColumn_metadata().values()) {
if (columnDef.name.equals(columnName.key)) toDelete = columnDef;
}
assert toDelete != null;
cfm.removeColumnDefinition(toDelete);
break;
}
break;
case OPTS:
if (cfProps == null)
throw new InvalidRequestException(
String.format("ALTER COLUMNFAMILY WITH invoked, but no parameters found"));
cfProps.validate();
cfProps.applyToCFMetadata(cfm);
break;
case RENAME:
for (Map.Entry<ColumnIdentifier, ColumnIdentifier> entry : renames.entrySet()) {
CFDefinition.Name from = cfDef.get(entry.getKey());
ColumnIdentifier to = entry.getValue();
if (from == null)
throw new InvalidRequestException(
String.format(
"Column %s was not found in table %s", entry.getKey(), columnFamily()));
CFDefinition.Name exists = cfDef.get(to);
if (exists != null)
throw new InvalidRequestException(
String.format(
"Cannot rename column %s in table %s to %s; another column of that name already exist",
from, columnFamily(), to));
switch (from.kind) {
case KEY_ALIAS:
cfm.keyAliases(rename(from.position, to, cfm.getKeyAliases()));
break;
case COLUMN_ALIAS:
cfm.columnAliases(rename(from.position, to, cfm.getColumnAliases()));
break;
case VALUE_ALIAS:
cfm.valueAlias(to.key);
break;
case COLUMN_METADATA:
throw new InvalidRequestException(
String.format("Cannot rename non PRIMARY KEY part %s", from));
}
}
break;
}
MigrationManager.announceColumnFamilyUpdate(cfm);
}