If you follow the development
strategy described in previous chapters, the source code for your
extension node consists of multiple files. As a practical matter,
it is most convenient for the purposes of development and deployment
if all of the files reside in a single SAS catalog. Deploying the
code is then just a matter of placing the catalog in a SAS library
that is accessible by SAS Enterprise Miner.
The simplest method
is to include your catalog in the SASHELP library. This is accomplished
in one of three ways. The first way is to use PROC CATALOG. Suppose
your catalog is named mylib.mycode. Start a SAS session and issue
the commands:
proc catalog cat=mylib.mycode;
copy out=sashelp.mycode;
run;
The second way is to
manually copy and paste the catalog into the SASCFG folder. The exact
location of this folder depends on your operating system and your
installation configuration, but it is always found under the root
SAS directory and has a path resembling the following: C:\Program
Files\SAS\SASFoundation\9.2\nls\en \SASCFG.
The third way is to
store the catalog in another folder and then modify the SAS system
configuration file SASV9.CFG. The folder containing the catalog is
then included in the SASHELP search path. The SASV9.CFG file is located
under the root SAS directory: C:\Program Files\SAS\SASFoundation\9.2\nls\en.
The advantage of putting
your code in the SASHELP library is that anyone using that server
has access to it.
An alternative is to
place your code in a separate folder and issue a LIBNAME statement.
The library needs to be accessible when a project is opened. See
Appendix 4: Allocating Libraries for SAS Enterprise
Miner for details
about the various ways this can be accomplished. For a shared platform
installation, the catalog must reside on the SAS Enterprise Miner
server. For a personal workstation installation, the catalog resides
on the client, because the client and server are the same machine.
If you have more than
one extension node, you can place the code for all of your extension
nodes in a single catalog. However, when you are developing an extension
node, it is probably better to keep that node's code in a separate
catalog. That way, as you are developing or modifying the node's code,
you do not have to interrupt the use of other extension nodes.