/*
 * 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.beam.runners.dataflow.options;

import org.apache.beam.sdk.options.Default;
import org.apache.beam.sdk.options.Description;
import org.apache.beam.sdk.options.Hidden;

/**
 * Options that are used exclusively within the Dataflow worker harness.
 * These options have no effect at pipeline creation time.
 */
@Description("[Internal] Options that are used exclusively within the Dataflow worker harness. "
    + "These options have no effect at pipeline creation time.")
@Hidden
public interface DataflowWorkerHarnessOptions extends DataflowPipelineOptions {
  /**
   * The identity of the worker running this pipeline.
   */
  @Description("The identity of the worker running this pipeline.")
  String getWorkerId();
  void setWorkerId(String value);

  /**
   * The identity of the Dataflow job.
   */
  @Description("The identity of the Dataflow job.")
  String getJobId();
  void setJobId(String value);

  /**
   * The size of the worker's in-memory cache, in megabytes.
   *
   * <p>Currently, this cache is used for storing read values of side inputs.
   */
  @Description("The size of the worker's in-memory cache, in megabytes.")
  @Default.Integer(100)
  Integer getWorkerCacheMb();
  void setWorkerCacheMb(Integer value);
}
