Package parquet.schema

Examples of parquet.schema.Type

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    private boolean isCompatible(ColumnDescriptor source, PropertyDescriptor target) {
        ParquetValueDriver driver = ParquetValueDrivers.of(
                target.getTypeInfo(),
                target.getValueClass());
        Type type = driver.getType(target.getFieldName());
        if (type.isPrimitive() == false) {
            return false;
        }
        return source.getType() == type.asPrimitiveType().getPrimitiveTypeName();
    }
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    }

    private MessageType computeSchema(DataModelDescriptor descriptor) {
        List<Type> fields = new ArrayList<Type>();
        for (PropertyDescriptor property : descriptor.getPropertyDescriptors()) {
            Type field = computeParquetType(property);
            fields.add(field);
        }
        return new MessageType(
                descriptor.getDataModelClass().getName(),
                fields);
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  }

  // An optional group containing a repeated anonymous group "map", containing
  // 2 elements: "key", "value"
  private static GroupType convertMapType(final String name, final MapTypeInfo typeInfo) {
    final Type keyType = convertType(ParquetHiveSerDe.MAP_KEY.toString(),
        typeInfo.getMapKeyTypeInfo(), Repetition.REQUIRED);
    final Type valueType = convertType(ParquetHiveSerDe.MAP_VALUE.toString(),
        typeInfo.getMapValueTypeInfo());
    return listWrapper(name, OriginalType.MAP_KEY_VALUE,
        new GroupType(Repetition.REPEATED, ParquetHiveSerDe.MAP.toString(), keyType, valueType));
  }
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      Column column = tajoSchema.getColumn(tajoIndex);
      if (column.getDataType().getType() == TajoDataTypes.Type.NULL_TYPE) {
        continue;
      }
      Datum datum = tuple.get(tajoIndex);
      Type fieldType = fields.get(index);
      if (!tuple.isNull(tajoIndex)) {
        recordConsumer.startField(fieldType.getName(), index);
        writeValue(fieldType, column, datum);
        recordConsumer.endField(fieldType.getName(), index);
      } else if (fieldType.isRepetition(Type.Repetition.REQUIRED)) {
        throw new RuntimeException("Null-value for required field: " +
            column.getSimpleName());
      }
      ++index;
    }
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      final int projectionIndex = projectionMap[i];
      Column column = tajoReadSchema.getColumn(projectionIndex);
      if (column.getDataType().getType() == TajoDataTypes.Type.NULL_TYPE) {
        continue;
      }
      Type type = parquetSchema.getType(index);
      converters[index] = newConverter(column, type, new ParentValueContainer() {
        @Override
        void add(Object value) {
          TajoRecordConverter.this.set(projectionIndex, value);
        }
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  }

  private Schema convertFields(List<Type> parquetFields) {
    List<Column> columns = new ArrayList<Column>();
    for (int i = 0; i < parquetFields.size(); ++i) {
      Type fieldType = parquetFields.get(i);
      if (fieldType.isRepetition(Type.Repetition.REPEATED)) {
        throw new RuntimeException("REPEATED not supported outside LIST or" +
            " MAP. Type: " + fieldType);
      }
      columns.add(convertField(fieldType));
    }
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        }
        seg = seg.getChild();
      }
      String[] pathSegments = new String[segments.size()];
      segments.toArray(pathSegments);
      Type type = null;
      try {
        type = schema.getType(pathSegments);
      } catch (InvalidRecordException e) {
        logger.warn("Invalid record" , e);
      }
      if (type != null) {
        Type t = getType(pathSegments, 0, schema);
        if (projection == null) {
          projection = new MessageType(messageName, t);
        } else {
          projection = projection.union(new MessageType(messageName, t));
        }
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      ColumnChunkIncReadStore pageReadStore = new ColumnChunkIncReadStore(recordCount,
              codecFactoryExposer.getCodecFactory(), fs, filePath);

      for (String[] path : schema.getPaths()) {
        Type type = schema.getType(path);
        if (type.isPrimitive()) {
          ColumnChunkMetaData md = paths.get(ColumnPath.get(path));
          pageReadStore.addColumn(schema.getColumnDescription(path), md);
        }
      }
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      throw new ExecutionSetupException(e);
    }
  }

  private static Type getType(String[] pathSegments, int depth, MessageType schema) {
    Type type = schema.getType(Arrays.copyOfRange(pathSegments, 0, depth + 1));
    if (depth + 1 == pathSegments.length) {
      return type;
    } else {
      Preconditions.checkState(!type.isPrimitive());
      return new GroupType(type.getRepetition(), type.getName(), getType(pathSegments, depth + 1, schema));
    }
  }
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      return;
    }
    final int fieldCount = type.getFieldCount();
    Writable[] values = arr.get();
    for (int field = 0; field < fieldCount; ++field) {
      final Type fieldType = type.getType(field);
      final String fieldName = fieldType.getName();
      final Writable value = values[field];
      if (value == null) {
        continue;
      }
      recordConsumer.startField(fieldName, field);

      if (fieldType.isPrimitive()) {
        writePrimitive(value);
      } else {
        recordConsumer.startGroup();
        if (value instanceof ArrayWritable) {
          if (fieldType.asGroupType().getRepetition().equals(Type.Repetition.REPEATED)) {
            writeArray((ArrayWritable) value, fieldType.asGroupType());
          } else {
            writeData((ArrayWritable) value, fieldType.asGroupType());
          }
        } else if (value != null) {
          throw new ParquetEncodingException("This should be an ArrayWritable or MapWritable: " + value);
        }
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Related Classes of parquet.schema.Type

  • com.asakusafw.directio.hive.parquet.DataModelMaterializer
  • com.asakusafw.directio.hive.parquet.DataModelWriteSupport
  • org.apache.drill.exec.store.parquet2.DrillParquetReader
  • org.apache.hadoop.hive.ql.io.parquet.convert.DataWritableGroupConverter
  • org.apache.hadoop.hive.ql.io.parquet.convert.HiveSchemaConverter
  • org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter
  • org.apache.tajo.storage.parquet.TajoRecordConverter
  • org.apache.tajo.storage.parquet.TajoSchemaConverter
  • org.apache.tajo.storage.parquet.TajoWriteSupport
  • parquet.column.impl.ColumnReadStoreImpl
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