/**
 * 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.yarn.server.resourcemanager.preprocessor;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;


/**
 * This is the interface providing functionality to process
 * application submission context.
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface ContextProcessor {
  /**
   * It will enrich the application submission context with value provided.
   * @param host  Address of the host from where application launched.
   * @param value  Value to be filled in ApplicationSubmissionContext.
   * @param applicationId  Application Id of the application.
   * @param submissionContext  Context of the application.
   */
  void process(String host, String value, ApplicationId applicationId,
      ApplicationSubmissionContext submissionContext);
}