| /* |
| * 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.runtime.executor; |
| |
| import org.apache.nemo.common.ir.vertex.transform.Transform; |
| import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker; |
| |
| import java.io.Serializable; |
| import java.util.Optional; |
| |
| /** |
| * Transform Context Implementation. |
| */ |
| public final class TransformContextImpl implements Transform.Context { |
| private final BroadcastManagerWorker broadcastManagerWorker; |
| private String data; |
| |
| /** |
| * Constructor of Context Implementation. |
| * |
| * @param broadcastManagerWorker for broadcast variables. |
| */ |
| public TransformContextImpl(final BroadcastManagerWorker broadcastManagerWorker) { |
| this.broadcastManagerWorker = broadcastManagerWorker; |
| this.data = null; |
| } |
| |
| @Override |
| public Object getBroadcastVariable(final Serializable tag) { |
| return broadcastManagerWorker.get(tag); |
| } |
| |
| @Override |
| public void setSerializedData(final String serializedData) { |
| this.data = serializedData; |
| } |
| |
| @Override |
| public Optional<String> getSerializedData() { |
| return Optional.ofNullable(this.data); |
| } |
| } |