| /* |
| * 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.sdk.options; |
| |
| import java.util.List; |
| import javax.annotation.Nullable; |
| import org.apache.beam.sdk.annotations.Experimental; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Lists; |
| |
| /** |
| * Apache Beam provides a number of experimental features that can be enabled with this flag. If |
| * executing against a managed service, please contact the service owners before enabling any |
| * experiments. |
| */ |
| @Experimental |
| @Hidden |
| public interface ExperimentalOptions extends PipelineOptions { |
| @Description( |
| "[Experimental] Apache Beam provides a number of experimental features that can " |
| + "be enabled with this flag. If executing against a managed service, please contact the " |
| + "service owners before enabling any experiments.") |
| @Nullable |
| List<String> getExperiments(); |
| |
| void setExperiments(@Nullable List<String> value); |
| |
| /** Returns true iff the provided pipeline options has the specified experiment enabled. */ |
| static boolean hasExperiment(PipelineOptions options, String experiment) { |
| if (options == null) { |
| return false; |
| } |
| |
| List<String> experiments = options.as(ExperimentalOptions.class).getExperiments(); |
| return experiments != null && experiments.contains(experiment); |
| } |
| |
| /** Adds experiment to options if not already present. */ |
| static void addExperiment(ExperimentalOptions options, String experiment) { |
| List<String> experiments = options.getExperiments(); |
| if (experiments == null) { |
| experiments = Lists.newArrayList(); |
| } |
| if (!experiments.contains(experiment)) { |
| experiments.add(experiment); |
| } |
| options.setExperiments(experiments); |
| } |
| } |