Module: NWRFC

Defined in:
lib/nwrfc.rb,
lib/nwrfc/server.rb,
lib/nwrfc/nwerror.rb,
lib/nwrfc/datacontainer.rb

Overview

This library provides a way to call the functions of the SAP Netweaver RFC SDK, i.e. opening a connection to an ABAP system, calling functions etc., as well as running an RFC service

Defined Under Namespace

Classes: Connection, DataContainer, Function, FunctionCall, NWABAPException, NWError, Parameter, Server, Structure, Table, Transaction, Type

Constant Summary collapse

NW_TIME_FORMAT =

ABAP Time Format (“HHMMSS”)

"%H%M%S"
NW_DATE_FORMAT =

ABAP Date Format (“YYYYMMDD”)

"%Y%m%d"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.abap_bool(value) ⇒ Object

Converts ABAP true/false into Ruby true/false

Returns:

  • True for ‘X’, False for ‘ ’ or nil otherwise



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# File 'lib/nwrfc.rb', line 149

def NWRFC.abap_bool(value)
  return true if value == 'X'
  return false if value == ' '
  nil
end

.bool_abap(value) ⇒ Object

Converts Ruby true/false into ABAP true/false



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# File 'lib/nwrfc.rb', line 157

def NWRFC.bool_abap(value)
  return 'X' if value == true
  return ' ' if value == false
  nil
end

.check_error(error_handle) ⇒ Object

Check for an error using error handle (used internally)

Raises:



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# File 'lib/nwrfc.rb', line 58

def NWRFC.check_error(error_handle)
  raise NWError, error_handle \
    if error_handle[:code] > 0
  #raise "Error code #{error_handle[:code]} group #{error_handle[:group]} message #{error_handle[:message].get_str}" \
    
end

.get_version ⇒ Object

Return the version of the NW RFC SDK library



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# File 'lib/nwrfc.rb', line 32

def NWRFC.get_version
  # See custom method FFI::Pointer#read_string_dn in nwrfclib.rb
  # http://stackoverflow.com/questions/9293307/ruby-ffi-ruby-1-8-reading-utf-16le-encoded-strings
  major = FFI::MemoryPointer.new(:uint)
  minor = FFI::MemoryPointer.new(:uint)
  patch = FFI::MemoryPointer.new(:uint)
  version = NWRFCLib.get_version(major, minor, patch)
  [version.read_string_dn.uC, major.read_uint, minor.read_uint, patch.read_uint]
end

.make_conn_params(params) ⇒ Object

Take Hash of connection parameters and returns FFI pointer to an array for setting up a connection



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# File 'lib/nwrfc.rb', line 44

def NWRFC.make_conn_params(params) #https://github.com/ffi/ffi/wiki/Structs
  par = FFI::MemoryPointer.new(NWRFCLib::RFCConnParam, params.length)
  pars = params.length.times.collect do |i|
    NWRFCLib::RFCConnParam.new(par + i * NWRFCLib::RFCConnParam.size)
  end
  tpar = params.to_a
  params.length.times do |n|
    pars[n][:name] = FFI::MemoryPointer.from_string(tpar[n][0].to_s.cU)
    pars[n][:value] = FFI::MemoryPointer.from_string(tpar[n][1].to_s.cU)
  end
  par
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/nwrfc.rb', line 27

def inspect
  self.to_s
end