examples/beam/src/main/java/org/apache/nemo/examples/beam/NemoPipelineOptionsFactory.java

/*
 * 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.nemo.examples.beam;

import org.apache.beam.sdk.PipelineRunner;
import org.apache.beam.sdk.options.PipelineOptions;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;

/**
 * NemoPipelineOptionsFactory that creates nemo pipeline options.
 */
final class NemoPipelineOptionsFactory {

  private NemoPipelineOptionsFactory() {
  }

  /**
   * Create a PipelineOptions for nemo runner.
   *
   * @return pipeline options
   */
  public static PipelineOptions create() {
    final PipelineOptions options = PipelineOptionsFactory.create().as(NemoPipelineOptions.class);
    try {
      options.setRunner((Class<? extends PipelineRunner<?>>)
        Class.forName("org.apache.nemo.client.beam.NemoRunner"));
      return options;
    } catch (final ClassNotFoundException e) {
      e.printStackTrace();
      throw new RuntimeException(e);
    }
  }
}