parquet.io.api.Binary.length()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中parquet.io.api.Binary.length()方法的一些代码示例，展示了Binary.length()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Binary.length()方法的具体详情如下：
包路径：parquet.io.api.Binary
类名称：Binary
方法名：length

Binary.length介绍

暂无

代码示例

代码示例来源：origin: prestodb/presto

  1. /**
  2.  * Returns GMT timestamp from binary encoded parquet timestamp (12 bytes - julian date + time of day nanos).
  3.  *
  4.  * @param timestampBinary INT96 parquet timestamp
  5.  * @return timestamp in millis, GMT timezone
  6.  */
  7. public static long getTimestampMillis(Binary timestampBinary)
  8. {
  9.   if (timestampBinary.length() != 12) {
  10.     throw new PrestoException(HIVE_BAD_DATA, "Parquet timestamp must be 12 bytes, actual " + timestampBinary.length());
  11.   }
  12.   byte[] bytes = timestampBinary.getBytes();
  13.   // little endian encoding - need to invert byte order
  14.   long timeOfDayNanos = Longs.fromBytes(bytes[7], bytes[6], bytes[5], bytes[4], bytes[3], bytes[2], bytes[1], bytes[0]);
  15.   int julianDay = Ints.fromBytes(bytes[11], bytes[10], bytes[9], bytes[8]);
  16.   return julianDayToMillis(julianDay) + (timeOfDayNanos / NANOS_PER_MILLISECOND);
  17. }

代码示例来源：origin: prestodb/presto

  1. /**
  2.  * Returns GMT timestamp from binary encoded parquet timestamp (12 bytes - julian date + time of day nanos).
  3.  *
  4.  * @param timestampBinary INT96 parquet timestamp
  5.  * @return timestamp in millis, GMT timezone
  6.  */
  7. public static long getTimestampMillis(Binary timestampBinary)
  8. {
  9.   if (timestampBinary.length() != 12) {
  10.     throw new PrestoException(NOT_SUPPORTED, "Parquet timestamp must be 12 bytes, actual " + timestampBinary.length());
  11.   }
  12.   byte[] bytes = timestampBinary.getBytes();
  13.   // little endian encoding - need to invert byte order
  14.   long timeOfDayNanos = Longs.fromBytes(bytes[7], bytes[6], bytes[5], bytes[4], bytes[3], bytes[2], bytes[1], bytes[0]);
  15.   int julianDay = Ints.fromBytes(bytes[11], bytes[10], bytes[9], bytes[8]);
  16.   return julianDayToMillis(julianDay) + (timeOfDayNanos / NANOS_PER_MILLISECOND);
  17. }

代码示例来源：origin: prestodb/presto

  1. @Override
  2. protected void readValue(BlockBuilder blockBuilder, Type type)
  3. {
  4.   if (definitionLevel == columnDescriptor.getMaxDefinitionLevel()) {
  5.     Binary binary = valuesReader.readBytes();
  6.     Slice value;
  7.     if (binary.length() == 0) {
  8.       value = EMPTY_SLICE;
  9.     }
  10.     else {
  11.       value = wrappedBuffer(binary.getBytes());
  12.     }
  13.     if (isVarcharType(type)) {
  14.       value = truncateToLength(value, type);
  15.     }
  16.     if (isCharType(type)) {
  17.       value = truncateToLengthAndTrimSpaces(value, type);
  18.     }
  19.     type.writeSlice(blockBuilder, value);
  20.   }
  21.   else if (isValueNull()) {
  22.     blockBuilder.appendNull();
  23.   }
  24. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public final void writeBytes(Binary v) {
  3.  if (v.length() != length) {
  4.   throw new IllegalArgumentException("Fixed Binary size " + v.length() +
  5.     " does not match field type length " + length);
  6.  }
  7.  try {
  8.   v.writeTo(out);
  9.  } catch (IOException e) {
  10.   throw new ParquetEncodingException("could not write fixed bytes", e);
  11.  }
  12. }

代码示例来源：origin: asakusafw/asakusafw

  1. private void setBinary(Text text, Binary binary) {
  2.     // TODO check it length?
  3.     text.set(binary.getBytes(), 0, binary.length());
  4.   }
  5. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public String toString() {
  3.  return "Binary{" + length() + " bytes, " + Arrays.toString(getBytes()) + "}";
  4. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. protected static Binary copy(Binary binary) {
  2.   return Binary.fromByteArray(
  3.     Arrays.copyOf(binary.getBytes(), binary.length()));
  4.  }
  5. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. public static NanoTime fromBinary(Binary bytes) {
  2.  Preconditions.checkArgument(bytes.length() == 12, "Must be 12 bytes");
  3.  ByteBuffer buf = bytes.toByteBuffer();
  4.  buf.order(ByteOrder.LITTLE_ENDIAN);
  5.  long timeOfDayNanos = buf.getLong();
  6.  int julianDay = buf.getInt();
  7.  return new NanoTime(julianDay, timeOfDayNanos);
  8. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. public static NanoTime fromBinary(Binary bytes) {
  2.  Preconditions.checkArgument(bytes.length() == 12, "Must be 12 bytes");
  3.  ByteBuffer buf = bytes.toByteBuffer();
  4.  buf.order(ByteOrder.LITTLE_ENDIAN);
  5.  long timeOfDayNanos = buf.getLong();
  6.  int julianDay = buf.getInt();
  7.  return new NanoTime(julianDay, timeOfDayNanos);
  8. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. public void writeBytes(Binary v) {
  2.  //for rawdata, length(4 bytes int) is stored, followed by the binary content itself
  3.  rawDataByteSize += v.length() + 4;
  4.  currentWriter.writeBytes(v);
  5.  checkFallback();
  6. }

代码示例来源：origin: asakusafw/asakusafw

  1. @Override
  2. public void addBinary(Binary value) {
  3.   target.reset();
  4.   target.get().set(value.getBytes(), 0, value.length());
  5. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2.  public Binary readBytes() {
  3.   int prefixLength = prefixLengthReader.readInteger();
  4.   // This does not copy bytes
  5.   Binary suffix = suffixReader.readBytes();
  6.   int length = prefixLength + suffix.length();
  7.   
  8.   // We have to do this to materialize the output
  9.   if(prefixLength != 0) {
  10.    byte[] out = new byte[length];
  11.    System.arraycopy(previous.getBytes(), 0, out, 0, prefixLength);
  12.    System.arraycopy(suffix.getBytes(), 0, out, prefixLength, suffix.length());
  13.    previous =  Binary.fromByteArray(out);
  14.   } else {
  15.    previous = suffix;
  16.   }
  17.   return previous;
  18.  }
  19. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public final void writeBytes(Binary v) {
  3.  try {
  4.   out.writeInt(v.length());
  5.   v.writeTo(out);
  6.  } catch (IOException e) {
  7.   throw new ParquetEncodingException("could not write bytes", e);
  8.  }
  9. }

代码示例来源：origin: uk.co.nichesolutions.presto/presto-hive

  1. /**
  2.  * Returns GMT timestamp from binary encoded parquet timestamp (12 bytes - julian date + time of day nanos).
  3.  *
  4.  * @param timestampBinary INT96 parquet timestamp
  5.  * @return timestamp in millis, GMT timezone
  6.  */
  7. public static long getTimestampMillis(Binary timestampBinary)
  8. {
  9.   if (timestampBinary.length() != 12) {
  10.     throw new PrestoException(HIVE_BAD_DATA, "Parquet timestamp must be 12 bytes, actual " + timestampBinary.length());
  11.   }
  12.   byte[] bytes = timestampBinary.getBytes();
  13.   // little endian encoding - need to invert byte order
  14.   long timeOfDayNanos = Longs.fromBytes(bytes[7], bytes[6], bytes[5], bytes[4], bytes[3], bytes[2], bytes[1], bytes[0]);
  15.   int julianDay = Ints.fromBytes(bytes[11], bytes[10], bytes[9], bytes[8]);
  16.   return julianDayToMillis(julianDay) + (timeOfDayNanos / NANOS_PER_MILLISECOND);
  17. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public void writeBytes(Binary v) {
  3.  try {
  4.   lengthWriter.writeInteger(v.length());
  5.   out.write(v.getBytes());
  6.  } catch (IOException e) {
  7.   throw new ParquetEncodingException("could not write bytes", e);
  8.  }
  9. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public void writeBytes(Binary v) {
  3.  int id = binaryDictionaryContent.getInt(v);
  4.  if (id == -1) {
  5.   id = binaryDictionaryContent.size();
  6.   binaryDictionaryContent.put(copy(v), id);
  7.   // length as int (4 bytes) + actual bytes
  8.   dictionaryByteSize += 4 + v.length();
  9.  }
  10.  encodedValues.add(id);
  11. }

代码示例来源：origin: com.facebook.presto.hive/hive-apache

  1. @Override
  2. public void addBinary(Binary value) {
  3.  if (DEBUG) log("addBinary(" + value.length() + " bytes)");
  4.  emptyField = false;
  5.  getColumnWriter().write(value, r[currentLevel], currentColumnIO.getDefinitionLevel());
  6.  setRepetitionLevel();
  7.  if (DEBUG) printState();
  8. }

代码示例来源：origin: uk.co.nichesolutions.presto/presto-hive

  1. @Override
  2. public void readValues(BlockBuilder blockBuilder, int valueNumber)
  3. {
  4.   for (int i = 0; i < valueNumber; i++) {
  5.     if (definitionReader.readLevel() == columnDescriptor.getMaxDefinitionLevel()) {
  6.       Binary binary = valuesReader.readBytes();
  7.       if (binary.length() == 0) {
  8.         VARCHAR.writeSlice(blockBuilder, Slices.EMPTY_SLICE);
  9.       }
  10.       else {
  11.         VARCHAR.writeSlice(blockBuilder, Slices.wrappedBuffer(binary.getBytes()));
  12.       }
  13.     }
  14.     else {
  15.       blockBuilder.appendNull();
  16.     }
  17.   }
  18. }

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