| /* |
| * 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.twister2.translators.functions; |
| |
| import edu.iu.dsc.tws.api.tset.TSetContext; |
| import edu.iu.dsc.tws.api.tset.fn.ComputeCollectorFunc; |
| import edu.iu.dsc.tws.api.tset.fn.RecordCollector; |
| import java.util.Iterator; |
| import org.apache.beam.sdk.transforms.join.RawUnionValue; |
| import org.apache.beam.sdk.util.WindowedValue; |
| |
| /** Output tag filter. */ |
| @SuppressWarnings({ |
| "nullness" // TODO(https://issues.apache.org/jira/browse/BEAM-10402) |
| }) |
| public class OutputTagFilter<OutputT, InputT> |
| implements ComputeCollectorFunc<WindowedValue<OutputT>, Iterator<RawUnionValue>> { |
| |
| private int tag; |
| |
| public OutputTagFilter() { |
| // non arg constructor needed for kryo |
| } |
| |
| public OutputTagFilter(int tag) { |
| this.tag = tag; |
| } |
| |
| @Override |
| public void compute( |
| Iterator<RawUnionValue> input, RecordCollector<WindowedValue<OutputT>> output) { |
| RawUnionValue temp; |
| while (input.hasNext()) { |
| temp = input.next(); |
| if (temp.getUnionTag() == tag) { |
| output.collect((WindowedValue<OutputT>) temp.getValue()); |
| } |
| } |
| } |
| |
| @Override |
| public void prepare(TSetContext context) {} |
| } |