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Improve columnarCopy for HostColumnarToGpu (#4770)
Signed-off-by: sperlingxx <lovedreamf@gmail.com> Improve columnarCopy for HostColumnarToGpu
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sql-plugin/src/main/java/com/nvidia/spark/rapids/ColumnarCopyHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,216 @@ | ||
| /* | ||
| * Copyright (c) 2022, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed 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 com.nvidia.spark.rapids; | ||
|
|
||
| import ai.rapids.cudf.HostColumnVector.ColumnBuilder; | ||
|
|
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| import org.apache.spark.sql.vectorized.ColumnVector; | ||
|
|
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| /** | ||
| * A helper class which efficiently transfers different types of host columnar data into cuDF. | ||
| * It is written in Java for two reasons: | ||
| * 1. Scala for-loop is slower (Scala while-loop is identical to Java loop) | ||
| * 2. Both ColumnBuilder and ColumnVector are Java classes | ||
| */ | ||
| public class ColumnarCopyHelper { | ||
|
|
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| public static void nullCopy(ColumnBuilder b, int rows) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.appendNull(); | ||
| } | ||
| } | ||
|
|
||
| public static void booleanCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getBoolean(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getBoolean(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static void byteCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getByte(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getByte(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static void shortCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getShort(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getShort(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static void intCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getInt(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getInt(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static void longCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getLong(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getLong(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static void floatCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getFloat(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getFloat(i)); | ||
| } | ||
| } | ||
| } | ||
|
|
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| public static void doubleCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getDouble(i)); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getDouble(i)); | ||
| } | ||
| } | ||
| } | ||
|
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||
| public static void stringCopy(ColumnVector cv, ColumnBuilder b, int rows) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.appendUTF8String(cv.getUTF8String(i).getBytes()); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.appendUTF8String(cv.getUTF8String(i).getBytes()); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // TODO: https://github.com/NVIDIA/spark-rapids/issues/4784 | ||
| public static void decimal32Copy(ColumnVector cv, ColumnBuilder b, int rows, | ||
| int precision, int scale) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append((int) cv.getDecimal(i, precision, scale).toUnscaledLong()); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append((int) cv.getDecimal(i, precision, scale).toUnscaledLong()); | ||
| } | ||
| } | ||
| } | ||
|
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| public static void decimal64Copy(ColumnVector cv, ColumnBuilder b, int rows, | ||
| int precision, int scale) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getDecimal(i, precision, scale).toUnscaledLong()); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getDecimal(i, precision, scale).toUnscaledLong()); | ||
| } | ||
| } | ||
| } | ||
|
|
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| public static void decimal128Copy(ColumnVector cv, ColumnBuilder b, int rows, | ||
| int precision, int scale) { | ||
| if (!cv.hasNull()) { | ||
| for (int i = 0; i < rows; i++) { | ||
| b.append(cv.getDecimal(i, precision, scale).toJavaBigDecimal()); | ||
| } | ||
| return; | ||
| } | ||
| for (int i = 0; i < rows; i++) { | ||
| if (cv.isNullAt(i)) { | ||
| b.appendNull(); | ||
| } else { | ||
| b.append(cv.getDecimal(i, precision, scale).toJavaBigDecimal()); | ||
| } | ||
| } | ||
| } | ||
| } |
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