forked from apache/carbondata
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[CARBONDATA-673]Reverting big decimal compression as it has below iss…
…ue This closes apache#561
- Loading branch information
Showing
38 changed files
with
851 additions
and
902 deletions.
There are no files selected for viewing
74 changes: 0 additions & 74 deletions
74
core/src/main/java/org/apache/carbondata/core/compression/BigDecimalCompressor.java
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
98 changes: 98 additions & 0 deletions
98
...ache/carbondata/core/datastore/chunk/store/impl/safe/SafeBigDecimalMeasureChunkStore.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * 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.carbondata.core.datastore.chunk.store.impl.safe; | ||
|
|
||
| import java.math.BigDecimal; | ||
| import java.nio.ByteBuffer; | ||
|
|
||
| import org.apache.carbondata.core.constants.CarbonCommonConstants; | ||
| import org.apache.carbondata.core.util.DataTypeUtil; | ||
|
|
||
| /** | ||
| * Responsibility is store the big decimal measure data in memory, | ||
| */ | ||
| public class SafeBigDecimalMeasureChunkStore extends SafeAbstractMeasureDataChunkStore<byte[]> { | ||
|
|
||
| /** | ||
| * data chunk | ||
| */ | ||
| private byte[] dataChunk; | ||
|
|
||
| /** | ||
| * offset of actual data | ||
| */ | ||
| private int[] dataOffsets; | ||
|
|
||
| public SafeBigDecimalMeasureChunkStore(int numberOfRows) { | ||
| super(numberOfRows); | ||
| this.dataOffsets = new int[numberOfRows]; | ||
| } | ||
|
|
||
| @Override public void putData(byte[] data) { | ||
| this.dataChunk = data; | ||
| // As data is of variable length and data format is | ||
| // <length in int><data><length in int><data> | ||
| // we need to store offset of each data so data can be accessed directly | ||
| // for example: | ||
| //data = {0,0,0,0,5,1,2,3,4,5,0,0,0,0,6,0,1,2,3,4,5,0,0,0,0,2,8,9} | ||
| //so value stored in offset will be position of actual data | ||
| // [5,14,24] | ||
| // to store this value we need to get the actual data length + 4 bytes used for storing the | ||
| // length | ||
|
|
||
| // start position will be used to store the current data position | ||
| int startOffset = 0; | ||
| // as first position will be start from 4 byte as data is stored first in the memory block | ||
| // we need to skip first two bytes this is because first two bytes will be length of the data | ||
| // which we have to skip | ||
| dataOffsets[0] = CarbonCommonConstants.INT_SIZE_IN_BYTE; | ||
| // creating a byte buffer which will wrap the length of the row | ||
| ByteBuffer buffer = ByteBuffer.allocate(CarbonCommonConstants.INT_SIZE_IN_BYTE); | ||
| for (int i = 1; i < numberOfRows; i++) { | ||
| buffer.put(data, startOffset, CarbonCommonConstants.INT_SIZE_IN_BYTE); | ||
| buffer.flip(); | ||
| // so current row position will be | ||
| // previous row length + 4 bytes used for storing previous row data | ||
| startOffset += buffer.getInt() + CarbonCommonConstants.INT_SIZE_IN_BYTE; | ||
| // as same byte buffer is used to avoid creating many byte buffer for each row | ||
| // we need to clear the byte buffer | ||
| buffer.clear(); | ||
| dataOffsets[i] = startOffset + CarbonCommonConstants.INT_SIZE_IN_BYTE; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * to get the byte value | ||
| * | ||
| * @param index | ||
| * @return byte value based on index | ||
| */ | ||
| @Override public BigDecimal getBigDecimal(int index) { | ||
| int currentDataOffset = dataOffsets[index]; | ||
| int length = 0; | ||
| // calculating the length of data | ||
| if (index < numberOfRows - 1) { | ||
| length = (int) (dataOffsets[index + 1] - (currentDataOffset | ||
| + CarbonCommonConstants.INT_SIZE_IN_BYTE)); | ||
| } else { | ||
| // for last record | ||
| length = (int) (this.dataChunk.length - currentDataOffset); | ||
| } | ||
| return DataTypeUtil.byteToBigDecimal(dataChunk, currentDataOffset, length); | ||
| } | ||
|
|
||
| } |
Oops, something went wrong.