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// 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,
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package org.apache.impala.authorization;

import javax.annotation.Nullable;

import com.google.common.base.Preconditions;
import com.google.common.base.Strings;

/**
 * A class to authorize access to a database.
 */
public class AuthorizableDb extends Authorizable {
  private final String dbName_;
  @Nullable // Owner can be null if not set.
  private final String ownerUser_;

  public AuthorizableDb(String dbName, String ownerUser) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(dbName));
    dbName_ = dbName;
    ownerUser_ = ownerUser;
  }

  @Override
  public String getName() { return dbName_; }

  @Override
  public String getDbName() { return getName(); }

  @Override
  public Type getType() { return Authorizable.Type.DB; }

  @Override
  public String getOwnerUser() { return ownerUser_; }
}