fe/src/main/java/org/apache/impala/catalog/Role.java

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// 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
//
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package org.apache.impala.catalog;

import com.google.common.base.Preconditions;
import org.apache.impala.thrift.TPrincipal;
import org.apache.impala.thrift.TPrincipalType;

import java.util.Set;

/**
 * Represents a role in an authorization policy.
 */
public class Role extends Principal {
  public Role(String roleName, Set<String> grantGroups) {
    super(roleName, TPrincipalType.ROLE, grantGroups);
  }

  public Role(TPrincipal thriftPrincipal) {
    super(thriftPrincipal);
    Preconditions.checkArgument(
        thriftPrincipal.getPrincipal_type() == TPrincipalType.ROLE);
  }
}