| /* |
| * 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.common.types.TypeProtos; |
| import org.apache.drill.common.types.Types; |
| 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.AllocationHelper; |
| import org.apache.drill.exec.vector.ValueVector; |
| |
| public abstract class AbstractCopier implements Copier { |
| protected ValueVector[] vvOut; |
| protected VectorContainer outgoing; |
| |
| @Override |
| public void setup(VectorAccessible incoming, VectorContainer outgoing) { |
| this.outgoing = outgoing; |
| |
| int count = outgoing.getNumberOfColumns(); |
| vvOut = new ValueVector[count]; |
| |
| 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(); |
| copyEntryIndirect(index, outgoingPosition); |
| 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 index, int recordCount) { |
| int endIndex = index + recordCount; |
| |
| for (int svIndex = index; svIndex < endIndex; svIndex++, outgoingPosition++) { |
| copyEntryIndirect(svIndex, outgoingPosition); |
| } |
| |
| updateCounts(outgoingPosition); |
| return outgoingPosition; |
| } |
| |
| protected void updateCounts(int numRecords) { |
| outgoing.setValueCount(numRecords); |
| } |
| |
| public abstract void copyEntryIndirect(int inIndex, int outIndex); |
| |
| public abstract void copyEntry(int inIndex, int outIndex); |
| |
| public static void allocateOutgoing(VectorContainer outgoing, int recordCount) { |
| for (VectorWrapper<?> out : outgoing) { |
| TypeProtos.MajorType type = out.getField().getType(); |
| |
| if (!Types.isFixedWidthType(type) || Types.isRepeated(type)) { |
| out.getValueVector().allocateNew(); |
| } else { |
| AllocationHelper.allocate(out.getValueVector(), recordCount, 1); |
| } |
| } |
| } |
| } |