Module: NWRFCLib

Extended by:
FFI::Library
Defined in:
lib/nwrfc/nwrfclib.rb

Overview

Library wrapper around NW RFC SDK shared library using RUBY-FFI

Defined Under Namespace

Classes: DATA_CONTAINER_HANDLE, RFCConnParam, RFCConnection, RFCDataContainer, RFCError, RFCFieldDesc, RFCFuncParam, RFC_DECF16, RFC_FUNCTION_DESC_HANDLE, RFC_TYPE_DESC_HANDLE

Constant Summary collapse

Cutf8_to_utf16le = 
Iconv.new("UTF-16LE", "UTF-8")
Cutf16le_to_utf8 = 
Iconv.new("UTF-8", "UTF-16LE")
B_SIZE =
TODO:

Make platform-dependent size based on RUBY_PLATFORM

Multiplier for providing correct byte size for String passed to RFC library

2
RFC_RC = 
enum(
    :RFC_OK,
    :RFC_COMMUNICATION_FAILURE,
    :RFC_LOGON_FAILURE,
    :RFC_ABAP_RUNTIME_FAILURE,
    :RFC_ABAP_MESSAGE,
    :RFC_ABAP_EXCEPTION,
    :RFC_CLOSED,
    :RFC_CANCELED,
    :RFC_TIMEOUT,
    :RFC_MEMORY_INSUFFICIENT,
    :RFC_VERSION_MISMATCH,
    :RFC_INVALID_PROTOCOL,
    :RFC_SERIALIZATION_FAILURE,
    :RFC_INVALID_HANDLE,
    :RFC_RETRY,
    :RFC_EXTERNAL_FAILURE,
    :RFC_EXECUTED,
    :RFC_NOT_FOUND,
    :RFC_NOT_SUPPORTED,
    :RFC_ILLEGAL_STATE,
    :RFC_INVALID_PARAMETER,
    :RFC_CODEPAGE_CONVERSION_FAILURE,
    :RFC_CONVERSION_FAILURE,
    :RFC_BUFFER_TOO_SMALL,
    :RFC_TABLE_MOVE_BOF,
    :RFC_TABLE_MOVE_EOF,
    :RFC_UNKNOWN_ERROR
)
RFC_ERROR_GROUP = 
enum(
    :OK,
    :ABAP_APPLICATION_FAILURE,
    :ABAP_RUNTIME_FAILURE,
    :LOGON_FAILURE,
    :COMMUNICATION_FAILURE,
    :EXTERNAL_RUNTIME_FAILURE,
    :EXTERNAL_APPLICATION_FAILURE
)
RFC_DIRECTION = 
enum(
    :RFC_IMPORT, 1,
    :RFC_EXPORT, 2,
    :RFC_CHANGING, 3,
    :RFC_TABLES, 7
)
RFC_TYPE = 
enum(
    :RFCTYPE_CHAR, 0,
    :RFCTYPE_DATE, 1,
    :RFCTYPE_BCD, 2,
    :RFCTYPE_TIME, 3,
    :RFCTYPE_BYTE, 4,
    :RFCTYPE_TABLE, 5,
    :RFCTYPE_NUM, 6,
    :RFCTYPE_FLOAT, 7,
    :RFCTYPE_INT, 8,
    :RFCTYPE_INT2, 9,
    :RFCTYPE_INT1, 10,
    :RFCTYPE_NULL, 14,
    :RFCTYPE_ABAPOBJECT, 16,
    :RFCTYPE_STRUCTURE, 17,
    :RFCTYPE_DECF16, 23,
    :RFCTYPE_DECF34, 24,
    :RFCTYPE_XMLDATA, 28,
    :RFCTYPE_STRING, 29,
    :RFCTYPE_XSTRING, 30,
    :RFCTYPE_BOX, 31,
    :RFCTYPE_GENERIC_BOX, 32,
    :_RFCTYPE_max_value
)

Class Method Summary collapse

Class Method Details

.make_conn_params(params) ⇒ Object

Take Hash of connection parameters and returns FFI pointer to an array for passing to connection

TODO - Ideally, this method should live in nwrfc.rb



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# File 'lib/nwrfc/nwrfclib.rb', line 457

def NWRFCLib.make_conn_params(params) #https://github.com/ffi/ffi/wiki/Structs
  par = FFI::MemoryPointer.new(RFCConnParam, params.length)
  pars = params.length.times.collect do |i|
    RFCConnParam.new(par + i * RFCConnParam.size)
  end
  #TODO Optimize this method
  tpar = params.to_a
  params.length.times do |n|
    #      str = (tpar[n][0].to_s + "\0").encode("UTF-16LE")
    pars[n][:name] = FFI::MemoryPointer.from_string(tpar[n][0].to_s.cU)
    #      str = (tpar[n][1].to_s + "\0").encode("UTF-16LE")
    #      str = str.encode("UTF-16LE")
    pars[n][:value] = FFI::MemoryPointer.from_string(tpar[n][1].to_s.cU)
  end
  par
end