Package parquet.column.values.plain

Examples of parquet.column.values.plain.PlainValuesWriter

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    @Override
    public DictionaryPage createDictionaryPage() {
      if (lastUsedDictionarySize > 0) {
        // return a dictionary only if we actually used it
        PlainValuesWriter dictionaryEncoder = new PlainValuesWriter(lastUsedDictionaryByteSize);
        LongIterator longIterator = longDictionaryContent.keySet().iterator();
        // write only the part of the dict that we used
        for (int i = 0; i < lastUsedDictionarySize; i++) {
          dictionaryEncoder.writeLong(longIterator.nextLong());
        }
        return new DictionaryPage(dictionaryEncoder.getBytes(), lastUsedDictionarySize, PLAIN_DICTIONARY);
      }
      return plainValuesWriter.createDictionaryPage();
    }
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    @Override
    public DictionaryPage createDictionaryPage() {
      if (lastUsedDictionarySize > 0) {
        // return a dictionary only if we actually used it
        PlainValuesWriter dictionaryEncoder = new PlainValuesWriter(lastUsedDictionaryByteSize);
        DoubleIterator doubleIterator = doubleDictionaryContent.keySet().iterator();
        // write only the part of the dict that we used
        for (int i = 0; i < lastUsedDictionarySize; i++) {
          dictionaryEncoder.writeDouble(doubleIterator.nextDouble());
        }
        return new DictionaryPage(dictionaryEncoder.getBytes(), lastUsedDictionarySize, PLAIN_DICTIONARY);
      }
      return plainValuesWriter.createDictionaryPage();
    }
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    @Override
    public DictionaryPage createDictionaryPage() {
      if (lastUsedDictionarySize > 0) {
        // return a dictionary only if we actually used it
        PlainValuesWriter dictionaryEncoder = new PlainValuesWriter(lastUsedDictionaryByteSize);
        it.unimi.dsi.fastutil.ints.IntIterator intIterator = intDictionaryContent.keySet().iterator();
        // write only the part of the dict that we used
        for (int i = 0; i < lastUsedDictionarySize; i++) {
          dictionaryEncoder.writeInteger(intIterator.nextInt());
        }
        return new DictionaryPage(dictionaryEncoder.getBytes(), lastUsedDictionarySize, PLAIN_DICTIONARY);
      }
      return plainValuesWriter.createDictionaryPage();
    }
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    @Override
    public DictionaryPage createDictionaryPage() {
      if (lastUsedDictionarySize > 0) {
        // return a dictionary only if we actually used it
        PlainValuesWriter dictionaryEncoder = new PlainValuesWriter(lastUsedDictionaryByteSize);
        FloatIterator floatIterator = floatDictionaryContent.keySet().iterator();
        // write only the part of the dict that we used
        for (int i = 0; i < lastUsedDictionarySize; i++) {
          dictionaryEncoder.writeFloat(floatIterator.nextFloat());
        }
        return new DictionaryPage(dictionaryEncoder.getBytes(), lastUsedDictionarySize, PLAIN_DICTIONARY);
      }
      return plainValuesWriter.createDictionaryPage();
    }
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   * @param maxDictionaryByteSize
   * @param initialSize
   */
  protected DictionaryValuesWriter(int maxDictionaryByteSize, int initialSize) {
    this.maxDictionaryByteSize = maxDictionaryByteSize;
    this.plainValuesWriter = new PlainValuesWriter(initialSize);
  }
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    @Override
    public DictionaryPage createDictionaryPage() {
      if (lastUsedDictionarySize > 0) {
        // return a dictionary only if we actually used it
        PlainValuesWriter dictionaryEncoder = new PlainValuesWriter(lastUsedDictionaryByteSize);
        Iterator<Binary> binaryIterator = binaryDictionaryContent.keySet().iterator();
        // write only the part of the dict that we used
        for (int i = 0; i < lastUsedDictionarySize; i++) {
          Binary entry = binaryIterator.next();
          dictionaryEncoder.writeBytes(entry);
        }
        return new DictionaryPage(dictionaryEncoder.getBytes(), lastUsedDictionarySize, PLAIN_DICTIONARY);
      }
      return plainValuesWriter.createDictionaryPage();
    }
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    case BINARY:
      if(enableDictionary) {
        return new PlainBinaryDictionaryValuesWriter(dictionaryPageSizeThreshold, initialSizePerCol);
      } else {
        if (writerVersion == WriterVersion.PARQUET_1_0) {
          return new PlainValuesWriter(initialSizePerCol);
        } else if (writerVersion == WriterVersion.PARQUET_2_0) {
          return new DeltaByteArrayWriter(initialSizePerCol);
        }
      }
      break;
    case INT32:
      if(enableDictionary) {
        return new PlainIntegerDictionaryValuesWriter(dictionaryPageSizeThreshold, initialSizePerCol);
      } else {
        if(writerVersion == WriterVersion.PARQUET_1_0) {
          return new PlainValuesWriter(initialSizePerCol);
        } else if(writerVersion == WriterVersion.PARQUET_2_0) {
          return new DeltaBinaryPackingValuesWriter(initialSizePerCol);
        }
      }
      break;
    case INT64:
      if(enableDictionary) {
        return new PlainLongDictionaryValuesWriter(dictionaryPageSizeThreshold, initialSizePerCol);
      } else {
        return new PlainValuesWriter(initialSizePerCol);
      }
    case DOUBLE:
      if(enableDictionary) {
        return new PlainDoubleDictionaryValuesWriter(dictionaryPageSizeThreshold, initialSizePerCol);
      } else {
        return new PlainValuesWriter(initialSizePerCol);
      }
    case FLOAT:
      if(enableDictionary) {
        return new PlainFloatDictionaryValuesWriter(dictionaryPageSizeThreshold, initialSizePerCol);
      } else {
        return new PlainValuesWriter(initialSizePerCol);
      }
    case FIXED_LEN_BYTE_ARRAY:
      return new FixedLenByteArrayPlainValuesWriter(path.getTypeLength(), initialSizePerCol);
    default:
      return new PlainValuesWriter(initialSizePerCol);
    }
    return null;
  }
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Related Classes of parquet.column.values.plain.PlainValuesWriter

  • parquet.bytes.CapacityByteArrayOutputStream
  • parquet.bytes.LittleEndianDataOutputStream
  • parquet.column.ParquetProperties
  • parquet.column.values.dictionary.DictionaryValuesWriter
  • parquet.column.values.dictionary.DictionaryValuesWriter$PlainBinaryDictionaryValuesWriter
  • parquet.column.values.dictionary.DictionaryValuesWriter$PlainDoubleDictionaryValuesWriter
  • parquet.column.values.dictionary.DictionaryValuesWriter$PlainFloatDictionaryValuesWriter
  • parquet.column.values.dictionary.DictionaryValuesWriter$PlainIntegerDictionaryValuesWriter
  • parquet.column.values.dictionary.DictionaryValuesWriter$PlainLongDictionaryValuesWriter
  • parquet.io.ParquetEncodingException
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