Simple example how to access xmlBlaster with C and XmlRpc
=========================================================


Installation:
=============

Download XmlRpc lib from:
        http://xmlrpc-c.sourceforge.net/

This XmlRpc implementation needs the W3C HTTP client library
(download from http://www.w3.org/Library/)



Compile (on UNIX):
==================

cd ~/w3c-libwww-pre-5.3.0
-------------------------
./configure --prefix=${HOME}/xmlrpc_libwww --without-expat --without-ssl
make
make install

Libraries have been installed in:
   ${HOME}/xmlrpc_libwww/lib

export LD_LIBRARY_PATH=${HOME}/xmlrpc_libwww/lib
export PATH=${HOME}/xmlrpc_libwww/bin:$PATH


cd ~/xmlrpc-c-0.9.9    (http://xmlrpc-c.sourceforge.net/)
-------------------

./configure --prefix=${HOME}/xmlrpc_bin

Libraries have been installed in:
   ${HOME}/xmlrpc_bin/lib

export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${HOME}/xmlrpc_libwww/lib:${HOME}/xmlrpc_bin/lib
export PATH=${HOME}/xmlrpc_libwww/bin:${HOME}/xmlrpc_bin/bin:$PATH


cd <XMLBLASTER_HOME>/demo/c/xmlrpc
----------------------------------

   CLIENT_CFLAGS=`xmlrpc-c-config libwww-client --cflags`
   CLIENT_LIBS=`xmlrpc-c-config libwww-client --libs`
   gcc $CLIENT_CFLAGS -o client client.c $CLIENT_LIBS -Wall

   SERVER_CFLAGS=`xmlrpc-c-config abyss-server --cflags`
   SERVER_LIBS=`xmlrpc-c-config abyss-server --libs`
   gcc $SERVER_CFLAGS -o callbackServer callbackServer.c $SERVER_LIBS -Wall


Run it:
=======

1. Start xmlBlaster server

   export CLASSPATH=<XMLBLASTER_HOME>/lib/xmlBlaster.jar
   java org.xmlBlaster.Main


2. Start the XmlRpc-c callbackServer, this will receive the data
   on http://myHost:8081/RPC2 (as configured in abyss.conf):

   callbackServer <pathToXmlrpcConf>abyss.conf

  Please edit abyss.conf before starting, e.g.
  set 'Port 8081' and adjust ServerRoot to point
  to your xmlrpc-c installation document root, e.g.:

  ServerRoot /home/xmlblast/xmlBlaster/demo/c/xmlrpc/xmlrpc-c-0.9.9/conf/abyss_root


3. Start this client:

        client -xmlrpc.serverUrl http://myHost:8080/ -xmlrpc.cbUrl http://myHost:8081/RPC2 -loginName ben -passwd secret -dest ben -msgFile hello.xml

  the -msgFile allows to send any file (binary data as well).

  It will login as user 'ben', and send to user 'ben' a PtP message


(You may also want to start a Java client to receive the messages like:
  java org.xmlBlaster.client.reader.SubscribeMessage  -loginName ben  -passwd secret  -oid __cmd:?totalMem
) 


Note:
=====

When the client start (see 3.), it publishes the callback address
of the callbackServer (see 2., as configured in abyss.conf).
We need to do this, since the callback server itself has no
way to tell its callback address to xmlBlaster.


Note:
=====

I'm not shure if i have detected all possible memory leaks.

01/2002 marcel