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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.db.virtual;
import java.util.Optional;
import org.apache.cassandra.auth.IAuthenticator;
import org.apache.cassandra.auth.PasswordAuthenticator;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.db.marshal.UTF8Type;
import org.apache.cassandra.dht.LocalPartitioner;
import org.apache.cassandra.schema.TableMetadata;
final class CredentialsCacheKeysTable extends AbstractMutableVirtualTable
{
private static final String ROLE = "role";
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
private final Optional<PasswordAuthenticator> passwordAuthenticatorOptional;
CredentialsCacheKeysTable(String keyspace)
{
super(TableMetadata.builder(keyspace, "credentials_cache_keys")
.comment("keys in the credentials cache")
.kind(TableMetadata.Kind.VIRTUAL)
.partitioner(new LocalPartitioner(UTF8Type.instance))
.addPartitionKeyColumn(ROLE, UTF8Type.instance)
.build());
IAuthenticator authenticator = DatabaseDescriptor.getAuthenticator();
if (authenticator instanceof PasswordAuthenticator)
this.passwordAuthenticatorOptional = Optional.of((PasswordAuthenticator) authenticator);
else
this.passwordAuthenticatorOptional = Optional.empty();
}
public DataSet data()
{
SimpleDataSet result = new SimpleDataSet(metadata());
passwordAuthenticatorOptional
.ifPresent(passwordAuthenticator -> passwordAuthenticator.getCredentialsCache().getAll()
.forEach((roleName, ignored) -> result.row(roleName)));
return result;
}
@Override
protected void applyPartitionDeletion(ColumnValues partitionKey)
{
String roleName = partitionKey.value(0);
passwordAuthenticatorOptional
.ifPresent(passwordAuthenticator -> passwordAuthenticator.getCredentialsCache().invalidate(roleName));
}
@Override
public void truncate()
{
passwordAuthenticatorOptional
.ifPresent(passwordAuthenticator -> passwordAuthenticator.getCredentialsCache().invalidate());
}
}