@Override
public void clearStorage() throws StorageException {
try {
Cluster cluster = clusterContext.getEntity();
Keyspace ks = cluster.getKeyspace(keySpaceName);
// Not a big deal if Keyspace doesn't not exist (dropped manually by user or tests).
// This is called on per test setup basis to make sure that previous test cleaned
// everything up, so first invocation would always fail as Keyspace doesn't yet exist.
if (ks == null) return;
for (ColumnFamilyDefinition cf :
cluster.describeKeyspace(keySpaceName).getColumnFamilyList()) {
ks.truncateColumnFamily(new ColumnFamily<Object, Object>(cf.getName(), null, null));
}
} catch (ConnectionException e) {
throw new PermanentStorageException(e);
} finally {
close();
}
}
private void ensureColumnFamilyExists(String name, String comparator) throws StorageException {
Cluster cl = clusterContext.getEntity();
try {
KeyspaceDefinition ksDef = cl.describeKeyspace(keySpaceName);
boolean found = false;
if (null != ksDef) {
for (ColumnFamilyDefinition cfDef : ksDef.getColumnFamilyList()) {
found |= cfDef.getName().equals(name);
}
}
if (!found) {
ColumnFamilyDefinition cfDef =
cl.makeColumnFamilyDefinition()
.setName(name)
.setKeyspace(keySpaceName)
.setComparatorType(comparator);
cl.addColumnFamily(cfDef);
}
} catch (ConnectionException e) {
throw new TemporaryStorageException(e);
}
}
@Override
public OperationResult<SchemaChangeResult> addColumnFamily(final ColumnFamilyDefinition def)
throws ConnectionException {
return executeSchemaChangeOperation(
new AbstractKeyspaceOperationImpl<SchemaChangeResult>(
tracerFactory.newTracer(CassandraOperationType.ADD_COLUMN_FAMILY), def.getKeyspace()) {
@Override
public SchemaChangeResult internalExecute(Client client, ConnectionContext context)
throws Exception {
return new SchemaChangeResponseImpl()
.setSchemaId(
client.system_add_column_family(
((ThriftColumnFamilyDefinitionImpl) def)
.getThriftColumnFamilyDefinition()));
}
});
}
