| /* |
| * 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.store.parquet.decimal; |
| |
| import com.google.common.primitives.Longs; |
| import io.netty.buffer.DrillBuf; |
| import org.apache.parquet.io.api.RecordConsumer; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Parquet value writer for passing decimal values |
| * into {@code RecordConsumer} to be stored as INT32 type. |
| */ |
| public class Int64DecimalParquetValueWriter extends DecimalValueWriter { |
| |
| @Override |
| public void writeValue(RecordConsumer consumer, DrillBuf buffer, int start, int end, int precision) { |
| byte[] output; |
| int startPos; |
| int length = end - start; |
| startPos = Longs.BYTES - length; |
| output = new byte[Longs.BYTES]; |
| if (startPos > 0) { |
| buffer.getBytes(start, output, startPos, length); |
| if (output[startPos] < 0) { |
| Arrays.fill(output, 0, output.length - length, (byte) -1); |
| } |
| } else { |
| // in this case value from FIXED_LEN_BYTE_ARRAY or BINARY field was taken, ignore leading bytes |
| buffer.getBytes(start - startPos, output, 0, length + startPos); |
| } |
| consumer.addLong(Longs.fromByteArray(output)); |
| } |
| } |