It has a Google Code page (won't be using svn.kirsle.net anymore) available at the following URL:
http://code.google.com/p/rivescript-java/
The library is feature-complete, meaning it supports everything laid out in the Working Draft, but it doesn't support object macros yet (because Java isn't a dynamic language and can't dynamically evaluate Java code). Object macros will be coming in a later update - probably using the Rhino JavaScript library and maybe even a micro Perl interpreter. ;-)
All the important stuff works though: all the directives, tags, user vars, bot vars, %Previous, topics (and inheritance and includes), etc.
I haven't tested it extensively yet and there may still be ways to break it, so if you find a way to break it let me know and I'll fix it. :-)
You can download the code from the Google Code page, or check it out via Subversion:
svn checkout http://rivescript-java.googlecode.com/svn/trunk/ rivescript-java-read-only
Library usage looks quite similar to the Perl version:
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.IOException;
import java.lang.String;
import com.rivescript.RiveScript;
public class RSBot {
public static void main (String[] args) {
// Let the user specify debug mode!
boolean debug = false;
for (int i = 0; i < args.length; i++) {
if (args[i].equals("--debug") || args[i].equals("-d")) {
debug = true;
}
}
// Create a new RiveScript interpreter.
System.out.println(":: Creating RS Object");
RiveScript rs = new RiveScript(debug);
// Load and sort replies
System.out.println(":: Loading replies");
rs.loadDirectory("./Aiden");
rs.sortReplies();
// Enter the main loop.
InputStreamReader converter = new InputStreamReader(System.in);
BufferedReader stdin = new BufferedReader(converter);
while (true) {
System.out.print("You> ");
String message = "";
try {
message = stdin.readLine();
}
catch (IOException e) {
System.err.println("Read error!");
}
// Quitting?
if (message.equals("/quit")) {
System.exit(0);
}
else if (message.equals("/dump topics")) {
rs.dumpTopics();
}
else if (message.equals("/dump sorted")) {
rs.dumpSorted();
}
else {
String reply = rs.reply("localuser", message);
System.out.println("Bot> " + reply);
}
}
}
}