/*
* 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.cql3.statements;
import org.apache.cassandra.auth.Auth;
import org.apache.cassandra.cql3.QueryProcessor;
import org.apache.cassandra.db.ConsistencyLevel;
import org.apache.cassandra.exceptions.InvalidRequestException;
import org.apache.cassandra.exceptions.RequestExecutionException;
import org.apache.cassandra.exceptions.RequestValidationException;
import org.apache.cassandra.exceptions.UnauthorizedException;
import org.apache.cassandra.service.ClientState;
import org.apache.cassandra.service.QueryState;
import org.apache.cassandra.transport.messages.ResultMessage;
public class ListUsersStatement extends AuthenticationStatement
{
public void validate(ClientState state)
{
}
public void checkAccess(ClientState state) throws UnauthorizedException
{
state.ensureNotAnonymous();
}
public ResultMessage execute(ClientState state) throws RequestValidationException, RequestExecutionException
{
return QueryProcessor.process(String.format("SELECT * FROM %s.%s", Auth.AUTH_KS, Auth.USERS_CF),
ConsistencyLevel.QUORUM,
new QueryState(new ClientState(true)));
}
}