Apache XML-RPC demo of performing a URL lookup

With the ant target "runLocallDemo" a Servlet will start and listen for a
search query from a client. The handler for the search query is the
SavageSearch class with a single mock look up method "search." This handler is
registered via the "org.apache.xmlrpc.webserver.XmlRpcServlet.proerties" file
with a single entry "SavageSearch=SavageSearch" key/value pair.

The client then launches making a connection to
URL: http://localhost:8080/SavageSearch. A search query of (Savage, Harrier)
is made with the Servlet which tasks the handler to perform the lookup with
results:

Result 1 is [Ljava.lang.String; https://savage.nps.edu/Savage/AircraftFixedWing/AV8B-Harrier-UnitedStates/AV8bHarrier.x3d\ Result 2 is [Ljava.lang.String; https://savage.nps.edu/Savage/AircraftFixedWing/AV8B-Harrier-UnitedStates/TranslatedAv8bHarrier.x3d

Before launching the "runLocallDemo" ant target, open up wireshark and
configure for packet capture on the loopback adapter.

Now launch and look for two packet captures of protocol: HTTP/XML where you can
then select and expand the entries to view the actual XML methodCall contents.

Since the local RPC Server is still listening for requests, it will have to be
forced to stop. You may see a benign output such as the following:

BUILD STOPPED (total time: 19 seconds)
Java Result: 2147483647

Deploying to a local Tomcat Server

This demo expects apache-tomcat-9.0.95. Point to that directory in the
build.properties file for the "catalina.base" property

Manager roles need to be defined in ${catalina.base}/config/tomcat-users.xml so
that the Catalina deploy/undeploy ant tasks work smoothly. Define as
follows:

<role rolename="manager-gui"/>
<user username="tomcat" password="tomcat" roles="manager-script"/>

Then, run the ant target "deployRunDemo"

Server log outputs can be viewed at ${catalina.base}/logs/catalina.out and in
the /logs directory. Look for "xmlrcp.log.0" to see similar logging output.

To undeploy the web app and stop the local Tomcat server, run "undeployRpcDemo"