| /* |
| * 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.druid.query.aggregation.firstlast; |
| |
| import org.apache.druid.common.config.NullHandling; |
| import org.apache.druid.query.aggregation.SerializablePairLongDouble; |
| import org.apache.druid.segment.vector.VectorObjectSelector; |
| import org.apache.druid.segment.vector.VectorValueSelector; |
| |
| import javax.annotation.Nullable; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Vectorized version of on heap aggregator for column selectors with type DOUBLE. |
| */ |
| public class DoubleFirstLastVectorAggregator extends FirstLastVectorAggregator<Double, SerializablePairLongDouble> |
| { |
| private final SelectionPredicate selectionPredicate; |
| |
| protected DoubleFirstLastVectorAggregator( |
| VectorValueSelector timeSelector, |
| VectorObjectSelector objectSelector, |
| SelectionPredicate selectionPredicate |
| ) |
| { |
| super(timeSelector, null, objectSelector, selectionPredicate); |
| this.selectionPredicate = selectionPredicate; |
| } |
| |
| protected DoubleFirstLastVectorAggregator( |
| VectorValueSelector timeSelector, |
| VectorValueSelector valueSelector, |
| SelectionPredicate selectionPredicate |
| ) |
| { |
| super(timeSelector, valueSelector, null, selectionPredicate); |
| this.selectionPredicate = selectionPredicate; |
| } |
| |
| @Override |
| public void init(ByteBuffer buf, int position) |
| { |
| buf.putLong(position, selectionPredicate.initValue()); |
| buf.put( |
| position + NULLITY_OFFSET, |
| NullHandling.replaceWithDefault() ? NullHandling.IS_NOT_NULL_BYTE : NullHandling.IS_NULL_BYTE |
| ); |
| buf.putDouble(position + VALUE_OFFSET, 0.0D); |
| } |
| |
| @Nullable |
| @Override |
| public Object get(ByteBuffer buf, int position) |
| { |
| long time = buf.getLong(position); |
| if (buf.get(position + NULLITY_OFFSET) == NullHandling.IS_NULL_BYTE) { |
| return new SerializablePairLongDouble(time, null); |
| } |
| return new SerializablePairLongDouble(time, buf.getDouble(position + VALUE_OFFSET)); |
| } |
| |
| @Override |
| protected void putValue(ByteBuffer buf, int position, long time, Double value) |
| { |
| buf.putLong(position, time); |
| buf.put(position + NULLITY_OFFSET, NullHandling.IS_NOT_NULL_BYTE); |
| buf.putDouble(position + VALUE_OFFSET, value); |
| } |
| |
| @Override |
| protected void putValue(ByteBuffer buf, int position, long time, VectorValueSelector valueSelector, int index) |
| { |
| buf.putLong(position, time); |
| buf.put(position + NULLITY_OFFSET, NullHandling.IS_NOT_NULL_BYTE); |
| buf.putDouble(position + VALUE_OFFSET, valueSelector.getDoubleVector()[index]); |
| } |
| |
| @Override |
| protected void putNull(ByteBuffer buf, int position, long time) |
| { |
| buf.putLong(position, time); |
| buf.put(position + NULLITY_OFFSET, NullHandling.IS_NULL_BYTE); |
| buf.putDouble(position + VALUE_OFFSET, 0.0D); |
| |
| } |
| |
| @Override |
| protected void putDefaultValue(ByteBuffer buf, int position, long time) |
| { |
| buf.putLong(position, time); |
| buf.put(position + NULLITY_OFFSET, NullHandling.IS_NOT_NULL_BYTE); |
| buf.putDouble(position, 0.0D); |
| } |
| |
| @Override |
| protected SerializablePairLongDouble readPairFromVectorSelectors( |
| boolean[] timeNullityVector, |
| long[] timeVector, |
| Object[] maybeFoldedObjects, |
| int index |
| ) |
| { |
| return FirstLastUtils.readDoublePairFromVectorSelectors(timeNullityVector, timeVector, maybeFoldedObjects, index); |
| } |
| } |
| |