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[format] support parquet reader reading field with 'FIXED_LEN_BYTE_AR…
…RAY' type (#4759)
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...rc/main/java/org/apache/paimon/format/parquet/reader/FixedLenBytesBinaryColumnReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.paimon.format.parquet.reader; | ||
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| import org.apache.paimon.data.columnar.writable.WritableBytesVector; | ||
| import org.apache.paimon.data.columnar.writable.WritableColumnVector; | ||
| import org.apache.paimon.data.columnar.writable.WritableIntVector; | ||
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| import org.apache.parquet.column.ColumnDescriptor; | ||
| import org.apache.parquet.column.page.PageReadStore; | ||
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| import java.io.IOException; | ||
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| /** Fixed length bytes {@link ColumnReader}, just for Binary. */ | ||
| public class FixedLenBytesBinaryColumnReader<VECTOR extends WritableColumnVector> | ||
| extends FixedLenBytesColumnReader<VECTOR> { | ||
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| public FixedLenBytesBinaryColumnReader( | ||
| ColumnDescriptor descriptor, PageReadStore pageReadStore, int precision) | ||
| throws IOException { | ||
| super(descriptor, pageReadStore, precision); | ||
| } | ||
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| @Override | ||
| protected void readBatch(int rowId, int num, VECTOR column) { | ||
| int bytesLen = descriptor.getPrimitiveType().getTypeLength(); | ||
| WritableBytesVector bytesVector = (WritableBytesVector) column; | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| byte[] bytes = readDataBinary(bytesLen).getBytesUnsafe(); | ||
| bytesVector.appendBytes(rowId + i, bytes, 0, bytes.length); | ||
| } else { | ||
| bytesVector.setNullAt(rowId + i); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| protected void skipBatch(int num) { | ||
| int bytesLen = descriptor.getPrimitiveType().getTypeLength(); | ||
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| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| skipDataBinary(bytesLen); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| protected void readBatchFromDictionaryIds( | ||
| int rowId, int num, VECTOR column, WritableIntVector dictionaryIds) { | ||
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| WritableBytesVector bytesVector = (WritableBytesVector) column; | ||
| for (int i = rowId; i < rowId + num; ++i) { | ||
| if (!bytesVector.isNullAt(i)) { | ||
| byte[] v = dictionary.decodeToBinary(dictionaryIds.getInt(i)).getBytesUnsafe(); | ||
| bytesVector.appendBytes(i, v, 0, v.length); | ||
| } | ||
| } | ||
| } | ||
| } |
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148 changes: 148 additions & 0 deletions
148
...c/main/java/org/apache/paimon/format/parquet/reader/FixedLenBytesDecimalColumnReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.paimon.format.parquet.reader; | ||
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| import org.apache.paimon.data.columnar.writable.WritableBytesVector; | ||
| import org.apache.paimon.data.columnar.writable.WritableColumnVector; | ||
| import org.apache.paimon.data.columnar.writable.WritableIntVector; | ||
| import org.apache.paimon.data.columnar.writable.WritableLongVector; | ||
| import org.apache.paimon.format.parquet.ParquetSchemaConverter; | ||
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| import org.apache.parquet.column.ColumnDescriptor; | ||
| import org.apache.parquet.column.page.PageReadStore; | ||
| import org.apache.parquet.io.api.Binary; | ||
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| import java.io.IOException; | ||
| import java.nio.ByteBuffer; | ||
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| /** Fixed length bytes {@link ColumnReader}, just for Decimal. */ | ||
| public class FixedLenBytesDecimalColumnReader<VECTOR extends WritableColumnVector> | ||
| extends FixedLenBytesColumnReader<VECTOR> { | ||
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| public FixedLenBytesDecimalColumnReader( | ||
| ColumnDescriptor descriptor, PageReadStore pageReadStore, int precision) | ||
| throws IOException { | ||
| super(descriptor, pageReadStore, precision); | ||
| } | ||
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| @Override | ||
| protected void readBatch(int rowId, int num, VECTOR column) { | ||
| int bytesLen = descriptor.getPrimitiveType().getTypeLength(); | ||
| if (ParquetSchemaConverter.is32BitDecimal(precision)) { | ||
| WritableIntVector intVector = (WritableIntVector) column; | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| intVector.setInt(rowId + i, (int) heapBinaryToLong(readDataBinary(bytesLen))); | ||
| } else { | ||
| intVector.setNullAt(rowId + i); | ||
| } | ||
| } | ||
| } else if (ParquetSchemaConverter.is64BitDecimal(precision)) { | ||
| WritableLongVector longVector = (WritableLongVector) column; | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| longVector.setLong(rowId + i, heapBinaryToLong(readDataBinary(bytesLen))); | ||
| } else { | ||
| longVector.setNullAt(rowId + i); | ||
| } | ||
| } | ||
| } else { | ||
| WritableBytesVector bytesVector = (WritableBytesVector) column; | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| byte[] bytes = readDataBinary(bytesLen).getBytesUnsafe(); | ||
| bytesVector.appendBytes(rowId + i, bytes, 0, bytes.length); | ||
| } else { | ||
| bytesVector.setNullAt(rowId + i); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| protected void skipBatch(int num) { | ||
| int bytesLen = descriptor.getPrimitiveType().getTypeLength(); | ||
| if (ParquetSchemaConverter.is32BitDecimal(precision)) { | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| skipDataBinary(bytesLen); | ||
| } | ||
| } | ||
| } else if (ParquetSchemaConverter.is64BitDecimal(precision)) { | ||
|
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| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| skipDataBinary(bytesLen); | ||
| } | ||
| } | ||
| } else { | ||
| for (int i = 0; i < num; i++) { | ||
| if (runLenDecoder.readInteger() == maxDefLevel) { | ||
| skipDataBinary(bytesLen); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @Override | ||
| protected void readBatchFromDictionaryIds( | ||
| int rowId, int num, VECTOR column, WritableIntVector dictionaryIds) { | ||
| if (ParquetSchemaConverter.is32BitDecimal(precision)) { | ||
| WritableIntVector intVector = (WritableIntVector) column; | ||
| for (int i = rowId; i < rowId + num; ++i) { | ||
| if (!intVector.isNullAt(i)) { | ||
| Binary v = dictionary.decodeToBinary(dictionaryIds.getInt(i)); | ||
| intVector.setInt(i, (int) heapBinaryToLong(v)); | ||
| } | ||
| } | ||
| } else if (ParquetSchemaConverter.is64BitDecimal(precision)) { | ||
| WritableLongVector longVector = (WritableLongVector) column; | ||
| for (int i = rowId; i < rowId + num; ++i) { | ||
| if (!longVector.isNullAt(i)) { | ||
| Binary v = dictionary.decodeToBinary(dictionaryIds.getInt(i)); | ||
| longVector.setLong(i, heapBinaryToLong(v)); | ||
| } | ||
| } | ||
| } else { | ||
| WritableBytesVector bytesVector = (WritableBytesVector) column; | ||
| for (int i = rowId; i < rowId + num; ++i) { | ||
| if (!bytesVector.isNullAt(i)) { | ||
| byte[] v = dictionary.decodeToBinary(dictionaryIds.getInt(i)).getBytesUnsafe(); | ||
| bytesVector.appendBytes(i, v, 0, v.length); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private long heapBinaryToLong(Binary binary) { | ||
| ByteBuffer buffer = binary.toByteBuffer(); | ||
| byte[] bytes = buffer.array(); | ||
| int start = buffer.arrayOffset() + buffer.position(); | ||
| int end = buffer.arrayOffset() + buffer.limit(); | ||
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| long unscaled = 0L; | ||
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| for (int i = start; i < end; i++) { | ||
| unscaled = (unscaled << 8) | (bytes[i] & 0xff); | ||
| } | ||
|
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| int bits = 8 * (end - start); | ||
| return (unscaled << (64 - bits)) >> (64 - bits); | ||
| } | ||
| } |
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