content: /*
   * 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.
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  package org.apache.cassandra.cql3.statements;
  
  import java.util.List;
  
  import com.google.common.collect.ImmutableList;
  
  import org.apache.cassandra.auth.*;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.schema.SchemaConstants;
  import org.apache.cassandra.cql3.ColumnIdentifier;
  import org.apache.cassandra.cql3.ColumnSpecification;
  import org.apache.cassandra.cql3.ResultSet;
  import org.apache.cassandra.db.marshal.BooleanType;
  import org.apache.cassandra.db.marshal.UTF8Type;
  import org.apache.cassandra.transport.messages.ResultMessage;
  import org.apache.commons.lang3.builder.ToStringBuilder;
  import org.apache.commons.lang3.builder.ToStringStyle;
  
  public class ListUsersStatement extends ListRolesStatement
  {
      // pseudo-virtual cf as the actual datasource is dependent on the IRoleManager impl
      private static final String KS = SchemaConstants.AUTH_KEYSPACE_NAME;
      private static final String CF = "users";
  
      private static final List<ColumnSpecification> metadata =
          ImmutableList.of(new ColumnSpecification(KS, CF, new ColumnIdentifier("name", true), UTF8Type.instance),
                           new ColumnSpecification(KS, CF, new ColumnIdentifier("super", true), BooleanType.instance),
                           new ColumnSpecification(KS, CF, new ColumnIdentifier("datacenters", true), UTF8Type.instance));
  
      @Override
      protected ResultMessage formatResults(List<RoleResource> sortedRoles)
      {
          ResultSet.ResultMetadata resultMetadata = new ResultSet.ResultMetadata(metadata);
          ResultSet result = new ResultSet(resultMetadata);
  
          IRoleManager roleManager = DatabaseDescriptor.getRoleManager();
          INetworkAuthorizer networkAuthorizer = DatabaseDescriptor.getNetworkAuthorizer();
          for (RoleResource role : sortedRoles)
          {
              if (!roleManager.canLogin(role))
                  continue;
              result.addColumnValue(UTF8Type.instance.decompose(role.getRoleName()));
              result.addColumnValue(BooleanType.instance.decompose(Roles.hasSuperuserStatus(role)));
              result.addColumnValue(UTF8Type.instance.decompose(networkAuthorizer.authorize(role).toString()));
          }
  
          return new ResultMessage.Rows(result);
      }
      
      @Override
      public String toString()
      {
          return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
      }
  }
  