| /* |
| * 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 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.ValueVector; |
| |
| import static org.apache.drill.exec.physical.impl.svremover.AbstractCopier.allocateOutgoing; |
| |
| public class GenericCopier implements Copier { |
| private ValueVector[] vvOut; |
| private ValueVector[] vvIn; |
| |
| private VectorContainer outgoing; |
| |
| @Override |
| public void setup(VectorAccessible incoming, VectorContainer outgoing) { |
| this.outgoing = outgoing; |
| |
| final int count = outgoing.getNumberOfColumns(); |
| |
| vvIn = new ValueVector[count]; |
| vvOut = new ValueVector[count]; |
| |
| { |
| int index = 0; |
| |
| for (VectorWrapper<?> vectorWrapper: incoming) { |
| vvIn[index] = vectorWrapper.getValueVector(); |
| index++; |
| } |
| } |
| |
| for (int index = 0; index < count; index++) { |
| vvOut[index] = outgoing.getValueVector(index).getValueVector(); |
| } |
| } |
| |
| @Override |
| public int copyRecords(int index, int recordCount) { |
| allocateOutgoing(outgoing, recordCount); |
| return insertRecords(0, index, recordCount); |
| } |
| |
| @Override |
| public int appendRecord(int index) { |
| int outgoingPosition = outgoing.getRecordCount(); |
| for (int vectorIndex = 0; vectorIndex < vvIn.length; vectorIndex++) { |
| vvOut[vectorIndex].copyEntry(outgoingPosition, vvIn[vectorIndex], index); |
| } |
| outgoingPosition++; |
| updateCounts(outgoingPosition); |
| return outgoingPosition; |
| } |
| |
| @Override |
| public int appendRecords(int index, int recordCount) { |
| return insertRecords(outgoing.getRecordCount(), index, recordCount); |
| } |
| |
| private int insertRecords(int outgoingPosition, int startIndex, int recordCount) { |
| final int endIndex = startIndex + recordCount; |
| |
| for (int index = startIndex; index < endIndex; index++, outgoingPosition++) { |
| for (int vectorIndex = 0; vectorIndex < vvIn.length; vectorIndex++) { |
| vvOut[vectorIndex].copyEntry(outgoingPosition, vvIn[vectorIndex], index); |
| } |
| } |
| |
| updateCounts(outgoingPosition); |
| return outgoingPosition; |
| } |
| |
| private void updateCounts(int numRecords) { |
| outgoing.setRecordCount(numRecords); |
| |
| for (int vectorIndex = 0; vectorIndex < vvOut.length; vectorIndex++) { |
| vvOut[vectorIndex].getMutator().setValueCount(numRecords); |
| } |
| } |
| } |