| /* |
| * 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.drill.exec.physical.impl.svremover; |
| |
| import com.google.common.collect.Lists; |
| import org.apache.drill.exec.record.RecordBatch; |
| import org.apache.drill.exec.record.TransferPair; |
| import org.apache.drill.exec.record.VectorAccessible; |
| import org.apache.drill.exec.record.VectorContainer; |
| import org.apache.drill.exec.record.VectorWrapper; |
| import org.apache.drill.exec.vector.SchemaChangeCallBack; |
| |
| import java.util.List; |
| |
| public class StraightCopier implements Copier { |
| private List<TransferPair> pairs = Lists.newArrayList(); |
| private RecordBatch incoming; |
| private VectorContainer outputContainer; |
| private SchemaChangeCallBack callBack; |
| |
| public StraightCopier(RecordBatch incomingBatch, VectorContainer outputContainer, SchemaChangeCallBack callBack) { |
| this.incoming = incomingBatch; |
| this.outputContainer = outputContainer; |
| this.callBack = callBack; |
| } |
| |
| @Override |
| public void setup(VectorAccessible incoming, VectorContainer outgoing) { |
| for(VectorWrapper<?> vv : incoming){ |
| TransferPair tp = vv.getValueVector().makeTransferPair(outputContainer.addOrGet(vv.getField(), callBack)); |
| pairs.add(tp); |
| } |
| } |
| |
| @Override |
| public int copyRecords(int index, int recordCount) { |
| assert index == 0 && recordCount == incoming.getRecordCount() : "Straight copier cannot split batch"; |
| for(TransferPair tp : pairs){ |
| tp.transfer(); |
| } |
| |
| outputContainer.setRecordCount(incoming.getRecordCount()); |
| return recordCount; |
| } |
| |
| @Override |
| public int appendRecord(int index) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int appendRecords(int index, int recordCount) { |
| throw new UnsupportedOperationException(); |
| } |
| } |