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The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
/*
* 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.auth;
import java.util.Set;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.utils.Pair;
public class PermissionsCache extends AuthCache, Set>
implements PermissionsCacheMBean
{
public PermissionsCache(IAuthorizer authorizer)
{
super(CACHE_NAME,
DatabaseDescriptor::setPermissionsValidity,
DatabaseDescriptor::getPermissionsValidity,
DatabaseDescriptor::setPermissionsUpdateInterval,
DatabaseDescriptor::getPermissionsUpdateInterval,
DatabaseDescriptor::setPermissionsCacheMaxEntries,
DatabaseDescriptor::getPermissionsCacheMaxEntries,
DatabaseDescriptor::setPermissionsCacheActiveUpdate,
DatabaseDescriptor::getPermissionsCacheActiveUpdate,
(p) -> authorizer.authorize(p.left, p.right),
authorizer.bulkLoader(),
authorizer::requireAuthorization);
}
public Set getPermissions(AuthenticatedUser user, IResource resource)
{
return get(Pair.create(user, resource));
}
public void invalidatePermissions(String roleName, String resourceName)
{
invalidate(Pair.create(new AuthenticatedUser(roleName), Resources.fromName(resourceName)));
}
}