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();
}
private static ColumnIdentifier getValueId(CFMetaData cfm) {
return cfm.getValueAlias() == null
? new ColumnIdentifier(DEFAULT_VALUE_ALIAS, false)
: new ColumnIdentifier(cfm.getValueAlias(), definitionType);
}