| /* |
| * 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.direct; |
| |
| import com.google.auto.value.AutoValue; |
| import java.util.Set; |
| import org.apache.beam.sdk.runners.AppliedPTransform; |
| import org.apache.beam.sdk.transforms.View.CreatePCollectionView; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.base.Optional; |
| |
| /** A {@link TransformResult} that has been committed. */ |
| @AutoValue |
| abstract class CommittedResult<ExecutableT> { |
| /** Returns the {@link AppliedPTransform} that produced this result. */ |
| public abstract ExecutableT getExecutable(); |
| |
| /** |
| * Returns the {@link CommittedBundle} that contains the input elements that could not be |
| * processed by the evaluation. The returned optional is present if there were any unprocessed |
| * input elements, and absent otherwise. |
| */ |
| public abstract Optional<? extends CommittedBundle<?>> getUnprocessedInputs(); |
| |
| /** Returns the outputs produced by the transform. */ |
| public abstract Iterable<? extends CommittedBundle<?>> getOutputs(); |
| |
| /** |
| * Returns if the transform that produced this result produced outputs. |
| * |
| * <p>Transforms that produce output via modifying the state of the runner (e.g. {@link |
| * CreatePCollectionView}) should explicitly set this to true. If {@link #getOutputs()} returns a |
| * nonempty iterable, this will also return true. |
| */ |
| public abstract Set<OutputType> getProducedOutputTypes(); |
| |
| public static CommittedResult<AppliedPTransform<?, ?, ?>> create( |
| TransformResult<?> original, |
| Optional<? extends CommittedBundle<?>> unprocessedElements, |
| Iterable<? extends CommittedBundle<?>> outputs, |
| Set<OutputType> producedOutputs) { |
| return new AutoValue_CommittedResult<>( |
| original.getTransform(), unprocessedElements, outputs, producedOutputs); |
| } |
| |
| enum OutputType { |
| PCOLLECTION_VIEW, |
| BUNDLE |
| } |
| } |