/**
 * 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.hadoop.hive.metastore.messaging;

import org.apache.hadoop.hive.metastore.api.Function;

public abstract class CreateFunctionMessage extends EventMessage {

  protected CreateFunctionMessage() {
    super(EventType.CREATE_FUNCTION);
  }

  public abstract Function getFunctionObj() throws Exception;

  @Override
  public EventMessage checkValid() {
    try {
      if (getFunctionObj() == null)
        throw new IllegalStateException("Function object unset.");
    } catch (Exception e) {
      if (! (e instanceof IllegalStateException)){
        throw new IllegalStateException("Event not set up correctly", e);
      } else {
        throw (IllegalStateException) e;
      }
    }
    return super.checkValid();
  }
}
