Java TType.I32属性代码示例

private TField getTField(Object thriftObject, String fieldName) throws TException {
	try {
     Map<String, ThriftField> classFields = getClassFields(thriftObject);
     ThriftField thriftField = classFields.get(fieldName);

     if(thriftField==null) {
       // Empty field -> skip
       return new TField();
     }

     byte type = thriftField.fieldMetaData.valueMetaData.type;
     short id = thriftField.tfieldIdEnum.getThriftFieldId();

     // An enum type is deserialized as an I32
     if (TType.ENUM == type) {
       type = TType.I32;
     }

     return new TField("", type, id);
   } catch (Exception exp) {
		throw new TException("Unexpected getTField fieldName=" + fieldName, exp);
	}
}
 

public void write(TProtocol oprot) throws TException {
  TStruct struct = new TStruct("TApplicationException");
  TField field = new TField();
  oprot.writeStructBegin(struct);
  if (getMessage() != null) {
    field.name = "message";
    field.type = TType.STRING;
    field.id = 1;
    oprot.writeFieldBegin(field);
    oprot.writeString(getMessage());
    oprot.writeFieldEnd();
  }
  field.name = "type";
  field.type = TType.I32;
  field.id = 2;
  oprot.writeFieldBegin(field);
  oprot.writeI32(type_);
  oprot.writeFieldEnd();
  oprot.writeFieldStop();
  oprot.writeStructEnd();

}
 

public static TApplicationException read(TProtocol iprot) throws TException {
  TField field;
  iprot.readStructBegin();

  String message = null;
  int type = UNKNOWN;

  while (true) {
    field = iprot.readFieldBegin();
    if (field.type == TType.STOP) {
      break;
    }
    switch (field.id) {
    case 1:
      if (field.type == TType.STRING) {
        message = iprot.readString();
      } else {
        TProtocolUtil.skip(iprot, field.type);
      }
      break;
    case 2:
      if (field.type == TType.I32) {
        type = iprot.readI32();
      } else {
        TProtocolUtil.skip(iprot, field.type);
      }
      break;
    default:
      TProtocolUtil.skip(iprot, field.type);
      break;
    }
    iprot.readFieldEnd();
  }
  iprot.readStructEnd();

  return new TApplicationException(type, message);
}
 

private byte stringToTypeId(String fieldType) throws TProtocolException {
    switch (fieldType) {
        case "bool":
            return TType.BOOL;
        case "i8":
            return TType.BYTE;
        case "i16":
            return TType.I16;
        case "i32":
            return TType.I32;
        case "i64":
            return TType.I64;
        case "double":
            return TType.DOUBLE;
        case "string":
            return TType.STRING;
        case "struct":
        case "union":
        case "exception":
            return TType.STRUCT;
        case "map":
            return TType.MAP;
        case "set":
            return TType.SET;
        case "list":
            return TType.LIST;
        default:
            throw new TProtocolException(TProtocolException.INVALID_DATA,
                    new Exception("Unknown type identifier " + fieldType));
    }
}
 

/**
 * Reads a {@link TApplicationException} from the specified {@link TProtocol}.
 *
 * <p>Note: This has been copied from {@link TApplicationException#read(TProtocol)} due to API differences
 * between libthrift 0.9.x and 0.10.x.
 */
public static TApplicationException read(TProtocol iprot) throws TException {
    TField field;
    iprot.readStructBegin();

    String message = null;
    int type = TApplicationException.UNKNOWN;

    while (true) {
        field = iprot.readFieldBegin();
        if (field.type == TType.STOP) {
            break;
        }
        switch (field.id) {
            case 1:
                if (field.type == TType.STRING) {
                    message = iprot.readString();
                } else {
                    TProtocolUtil.skip(iprot, field.type);
                }
                break;
            case 2:
                if (field.type == TType.I32) {
                    type = iprot.readI32();
                } else {
                    TProtocolUtil.skip(iprot, field.type);
                }
                break;
            default:
                TProtocolUtil.skip(iprot, field.type);
                break;
        }
        iprot.readFieldEnd();
    }
    iprot.readStructEnd();

    return new TApplicationException(type, message);
}
 

private Object getCurrentFieldValue(byte ttype) {
    Context context = peekContext();
    if( context instanceof StructContext && ((StructContext)context).fieldsStack.isEmpty() == false ) {
        String fieldName = ((StructContext)context).fieldsStack.peek();
        // Extracts the dbobject
        Object fieldReaded = context.dbObject.get(fieldName);
        return fieldReaded;
    } else if(context instanceof  ListContext) {
        return ((ListContext)context).next();
    } else if(context instanceof  MapContext) {

        // IF YOU READ A KEY YOU MUST CONVERT THE STRING INTO NUMBER
        if( ((MapContext)context).isNextKey()) {
            switch( ttype ) {
                case TType.BYTE:
                    return Byte.parseByte((String)((MapContext)context).next());
                case TType.I32:
                case TType.I16:
                    return Integer.parseInt((String)((MapContext)context).next());
                case TType.I64:
                    return Long.parseLong((String)((MapContext)context).next());
                case TType.DOUBLE:
                    return Double.parseDouble((String)((MapContext)context).next());
            }
        }

        return ((MapContext)context).next();
    }
    return null;
}
 

@Override
public byte getTType() {
    return TType.I32;
}
 

private Object partialDeserializeField(byte ttype, byte[] bytes, TFieldIdEnum fieldIdPathFirst, TFieldIdEnum ... fieldIdPathRest) throws TException {
  try {
    TField field = locateField(bytes, fieldIdPathFirst, fieldIdPathRest);
    if (field != null) {
      // if this point is reached, iprot will be positioned at the start of the field.
      switch(ttype){
        case TType.BOOL:
          if (field.type == TType.BOOL){
            return protocol_.readBool();
          }
          break;
        case TType.BYTE:
          if (field.type == TType.BYTE) {
            return protocol_.readByte();
          }
          break;
        case TType.DOUBLE:
          if (field.type == TType.DOUBLE) {
            return protocol_.readDouble();
          }
          break;
        case TType.I16:
          if (field.type == TType.I16) {
            return protocol_.readI16();
          }
          break;
        case TType.I32:
          if (field.type == TType.I32) {
            return protocol_.readI32();
          }
          break;
        case TType.I64:
          if (field.type == TType.I64) {
            return protocol_.readI64();
          }
          break;
        case TType.STRING:
          if (field.type == TType.STRING) {
            return protocol_.readString();
          }
          break;
        case 100: // hack to differentiate between string and binary
          if (field.type == TType.STRING) {
            return protocol_.readBinary();
          }
          break;
      }
    }
    return null;
  } catch (Exception e) {
    throw new TException(e);
  } finally {
    trans_.clear();
    protocol_.reset();
  }
}
 

@VisibleForTesting
static TypeSignature toTypeSignature(FieldValueMetaData fieldValueMetaData) {
    if (fieldValueMetaData instanceof StructMetaData) {
        return TypeSignature.ofNamed(((StructMetaData) fieldValueMetaData).structClass);
    }

    if (fieldValueMetaData instanceof EnumMetaData) {
        return TypeSignature.ofNamed(((EnumMetaData) fieldValueMetaData).enumClass);
    }

    if (fieldValueMetaData instanceof ListMetaData) {
        return TypeSignature.ofList(toTypeSignature(((ListMetaData) fieldValueMetaData).elemMetaData));
    }

    if (fieldValueMetaData instanceof SetMetaData) {
        return TypeSignature.ofSet(toTypeSignature(((SetMetaData) fieldValueMetaData).elemMetaData));
    }

    if (fieldValueMetaData instanceof MapMetaData) {
        return TypeSignature.ofMap(toTypeSignature(((MapMetaData) fieldValueMetaData).keyMetaData),
                                   toTypeSignature(((MapMetaData) fieldValueMetaData).valueMetaData));
    }

    if (fieldValueMetaData.isBinary()) {
        return BINARY;
    }

    switch (fieldValueMetaData.type) {
        case TType.VOID:
            return VOID;
        case TType.BOOL:
            return BOOL;
        case TType.BYTE:
            return I8;
        case TType.DOUBLE:
            return DOUBLE;
        case TType.I16:
            return I16;
        case TType.I32:
            return I32;
        case TType.I64:
            return I64;
        case TType.STRING:
            return STRING;
    }

    final String unresolvedName;
    if (fieldValueMetaData.isTypedef()) {
        unresolvedName = fieldValueMetaData.getTypedefName();
    } else {
        unresolvedName = null;
    }

    return TypeSignature.ofUnresolved(firstNonNull(unresolvedName, "unknown"));
}
 

/**
 * Compute a new field name map for the current thrift message
 * we are parsing.
 */
private Map<String, TField> computeFieldNameMap(Class<?> clazz) {
    Map<String, TField> map = new HashMap<>();

    if (isTBase(clazz)) {
        // Get the metaDataMap for this Thrift class
        @SuppressWarnings("unchecked")
        Map<? extends TFieldIdEnum, FieldMetaData> metaDataMap =
                FieldMetaData.getStructMetaDataMap((Class<? extends TBase<?, ?>>) clazz);

        for (Entry<? extends TFieldIdEnum, FieldMetaData> e : metaDataMap.entrySet()) {
            final String fieldName = e.getKey().getFieldName();
            final FieldMetaData metaData = e.getValue();

            final FieldValueMetaData elementMetaData;
            if (metaData.valueMetaData.isContainer()) {
                if (metaData.valueMetaData instanceof SetMetaData) {
                    elementMetaData = ((SetMetaData) metaData.valueMetaData).elemMetaData;
                } else if (metaData.valueMetaData instanceof ListMetaData) {
                    elementMetaData = ((ListMetaData) metaData.valueMetaData).elemMetaData;
                } else if (metaData.valueMetaData instanceof MapMetaData) {
                    elementMetaData = ((MapMetaData) metaData.valueMetaData).valueMetaData;
                } else {
                    // Unrecognized container type, but let's still continue processing without
                    // special enum support.
                    elementMetaData = metaData.valueMetaData;
                }
            } else {
                elementMetaData = metaData.valueMetaData;
            }

            if (elementMetaData instanceof EnumMetaData) {
                classMap.put(fieldName, ((EnumMetaData) elementMetaData).enumClass);
            } else if (elementMetaData instanceof StructMetaData) {
                classMap.put(fieldName, ((StructMetaData) elementMetaData).structClass);
            }

            // Workaround a bug in the generated thrift message read()
            // method by mapping the ENUM type to the INT32 type
            // The thrift generated parsing code requires that, when expecting
            // a value of enum, we actually parse a value of type int32. The
            // generated read() method then looks up the enum value in a map.
            byte type = TType.ENUM == metaData.valueMetaData.type ? TType.I32
                                                                  : metaData.valueMetaData.type;

            map.put(fieldName,
                    new TField(fieldName,
                               type,
                               e.getKey().getThriftFieldId()));
        }
    } else { // TApplicationException
        map.put("message", new TField("message", (byte)11, (short)1));
        map.put("type", new TField("type", (byte)8, (short)2));
    }

    return map;
}
 

void readOneValue(TProtocol in, TProtocol out, byte type)
    throws TException {
  switch (type) {
  case TType.LIST:
    readOneList(in, out);
    break;
  case TType.MAP:
    readOneMap(in, out);
    break;
  case TType.SET:
    readOneSet(in, out);
    break;
  case TType.STRUCT:
    readOneStruct(in, out);
    break;
  case TType.STOP:
    break;
  case TType.BOOL:
    out.writeBool(in.readBool());
    break;
  case TType.BYTE:
    out.writeByte(in.readByte());
    break;
  case TType.DOUBLE:
    out.writeDouble(in.readDouble());
    break;
  case TType.I16:
    out.writeI16(in.readI16());
    break;
  case TType.ENUM: // same as i32 => actually never seen in the protocol layer as enums are written as a i32 field
  case TType.I32:
    out.writeI32(in.readI32());
    break;
  case TType.I64:
    out.writeI64(in.readI64());
    break;
  case TType.STRING:
    out.writeBinary(in.readBinary());
    break;
  case TType.VOID:
    break;
  default:
    throw new TException("Unknown type: " + type);
  }
}
 

/**
 * @return true when all value is consumed, false when some values is ignored due to the field is not defined in expectedType
 * @throws TException
 */
private boolean readOneValue(TProtocol in, byte type, List<Action> buffer, ThriftType expectedType) throws TException {
  if (expectedType != null && expectedType.getType().getSerializedThriftType() != type) {
    throw new DecodingSchemaMismatchException("the data type does not match the expected thrift structure: expected " + expectedType + " got " + typeName(type));
  }
  boolean hasFieldsIgnored = false;
  switch (type) {
  case TType.LIST:
    hasFieldsIgnored = readOneList(in, buffer, (ListType)expectedType);
    break;
  case TType.MAP:
    hasFieldsIgnored = readOneMap(in, buffer, (MapType)expectedType);
    break;
  case TType.SET:
    hasFieldsIgnored = readOneSet(in, buffer, (SetType)expectedType);
    break;
  case TType.STRUCT:
    hasFieldsIgnored = readOneStruct(in, buffer, (StructType)expectedType);
    break;
  case TType.STOP:
    break;
  case TType.BOOL:
    final boolean bool = in.readBool();
    writeBoolAction(buffer, bool);
    break;
  case TType.BYTE:
    final byte b = in.readByte();
    writeByteAction(buffer, b);
    break;
  case TType.DOUBLE:
    final double d = in.readDouble();
    writeDoubleAction(buffer, d);
    break;
  case TType.I16:
    final short s = in.readI16();
    writeShortAction(buffer, s);
    break;
  case TType.ENUM: // same as i32 => actually never seen in the protocol layer as enums are written as a i32 field
  case TType.I32:
    final int i = in.readI32();
    checkEnum(expectedType,i);
    writeIntAction(buffer, i);
    break;
  case TType.I64:
    final long l = in.readI64();
    writeLongAction(buffer, l);
    break;
  case TType.STRING:
    final ByteBuffer bin = in.readBinary();
    writeStringAction(buffer, bin);
    break;
  case TType.VOID:
    break;
  default:
    throw new TException("Unknown type: " + type);
  }
  return hasFieldsIgnored;
}