Configuring Broker for Internationalization

Software internationalization is the process of designing products and services so that they can be adapted easily to a variety of different local languages and cultures. Internationalization within EntireX means internationalization of messages: the incoming and outgoing messages are converted to the desired codepage of the platform in use. This document explains in detail how to configure the broker for character conversion. It covers the following topics:

See also Internationalization with EntireX.

Configuring ICU Conversion

Start of instruction setTo configure ICU conversion

  1. In the Broker attribute file, set the service-specific attribute CONVERSION. Example:

    • ICU Conversion with SAGTCHA for ACI-based Programming, RPC-based Components (1) and Direct RPC (1):


      (1)Conversion with multibyte, double-byte and other complex codepages for RPC-based components and Reliable RPC is not supported on BS2000.

  2. Optionally configure a CONVERSION OPTION to tune error behavior to meet your requirements; see OPTION Values for Conversion.

  3. For the Broker attribute, check if ICU conversion is possible, that is, the attribute ICU-CONVERSION is either

    • not defined, its default is YES

    • set to YES

Start of instruction setTo configure locale string defaults (optional)

  • If the broker's locale string defaults do not match your requirements (see Broker's Locale String Defaults), we recommend you assign suitable locale string defaults for your country and region, see the respective attribute in Codepage-specific Attributes for how to customize the broker's locale string defaults.

Start of instruction setTo customize mapping of locale strings (optional)

  • If the built-in locale string mapping mechanism does not match your requirements, you can assign specific codepages to locale strings. See Broker's Built-in Locale String Mapping and locale-string for information on customizing the mapping of locale strings to codepages.

Writing Translation User Exits

This section covers the following topics:


EntireX Broker provides an interface to enable user-written translation routines in the programming language Assembler. It contains three parameters:

  • The address of the TRAP control block (TRAP = Translation Routine / Area for Parameters).

  • The address of a temporary work area. It is aligned to fullword / long integer boundary (divisible by 4). The work area can only be used for temporary needs and is cleared after return.

  • A fullword (long integer) that contains the length of the work area.

Names for user-written translation routines starting with "SAG" are reserved for Software AG usage and must not be used, e.g. "SAGTCHA" and "SAGTRPC".

Structure of the TRAP Control Block

The Assembler dummy section TR$TRAP covers the layout of the TRAP control block:

TR$TYPE  DS       F            TRAP type
TR$TYP2  EQU      2            TRAP type ETB 121
TR$ILEN  DS       F            Input buffer length
TR$IBUF  DS       A            Address of input buffer
TR$OLEN  DS       F            Output buffer length
TR$OBUF  DS       A            Address of output buffer
TR$DLEN  DS       F            Length of data returned:
*                              Should be set to the minimum value of TR$ILEN 
*                              and TR$OLEN.
TR$SHOST DS       F            Sender's host:
*                              x'00000000' = little endian
*                              x'00000001' = big endian
TR$SCODE DS       F            Sender's character set:
SEBCIBM  EQU      X'00000022'  EBCDIC (IBM)
SEBCSNI  EQU      X'00000042'  EBCDIC (SNI)
SA88591  EQU      X'00000080'  ASCII
TR$RHOST DS       F            Receiver's host     --> see TR$SHOST
TR$RCODE DS       F            Receiver's char set --> see TR$SCODE
TR$BHOST DS       F            BROKER host         --> see TR$SHOST
TR$BCODE DS       F            BROKER char set     --> see TR$SCODE
TR$SENVA DS       F            Sender's ENVIRONMENT field supplied:
OFF      EQU      X'00000000'  ENVIRONMENT field not set
ON       EQU      X'00000001'  ENVIRONMENT field set
TR$RENVA DS       F            Receiver's ENVIRONMENT field supplied:
*                              --> see TR$SENVA
TR$SENV  DS       CL32         Sender's ENVIRONMENT field
TR$RENV  DS       CL32         Receiver's ENVIRONMENT field
TR$LEN   EQU      *-TR$TRAP    Length of TRAP

Using the TRAP Fields

The TR$DLEN must be supplied by the user-written translation routine. It tells the Broker the length of the message of the translation. In our example its value is set to the minimum length of the input and output buffer.

All other TRAP fields are supplied by the Broker and must not be modified by the user-written translation routine.

The incoming message is located in a buffer pointed to by TR$IBUF. The length (not to be exceeded) is supplied in TR$ILEN. The character set information from the send buffer can be taken from TR$SCODE.

The outgoing message must be written to the buffer pointed to by TR$OBUF. The length of the output buffer is given in the field TR$OLEN. The character set is specified in TR$RCODE. If the addresses given in TR$IBUF and TR$OBUF point to the same location, it is not necessary to copy the data from the input buffer to the output buffer.

The environment fields TR$SENVA and TR$RENVA are provided to handle site-dependent character set information. For the SEND and/or RECEIVE functions, you can specify data in the ENVIRONMENT field of the Broker ACI control block. This data is translated into the codepage of the platform where EntireX Broker is running (see field TR$BCODE) and is available to the TR$SENV or TR$RENV field in the TRAP control block. TR$SENVA or TR$RENVA are set to ON if environmental data is available. Any values given in the API field ENVIRONMENT must correspond to the values handled in the translation routine.

Configuring Translation User Exits

Start of instruction setTo configure translation user exits

As a prerequisite, the user-written translation module must be accessible to the Broker worker threads.

  1. Copy the user-written translation module into the EntireX Broker load library (EXX103.LIB).

  2. In the Broker attribute file, set the service-specific attribute TRANSLATION to the name of the user-written translation routine. Example:


Configuring Translation

Start of instruction setTo configure translation

  • In the Broker attribute file, set the service-specific attribute TRANSLATION to SAGTCHA as the name of the translation routine. Example: