here is a solution that does not require XMLRPCClient. The important thing is to capture the customer ID on the first interaction with the bot, and then send the value of custid back with each subsequent transaction. The bot uses the custid to remember the local variables associated with a conversation thread, such as name, age, gender, topic etc.
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URLEncoder;
public class PandorabotsTalkAPI {
public String defaultCustid = "0";
public String custid = defaultCustid;
public String responseFailed = "RESPONSE FAILED";
public String defaultBotId = "f5d922d97e345aa1";
public String defaultHost = "www.pandorabots.com";
public String askPandorabots(String input) {
return askPandorabots(input, defaultHost, defaultBotId);
}
public String askPandorabots(String input, String host, String botid) {
//System.out.println("Entering askPandorabots with input="+input+" host ="+host+" botid="+botid);
String responseContent = pandorabotsRequest(input, host, botid);
if (responseContent == null) return responseFailed;
else return pandorabotsResponse(responseContent, host, botid);
}
public String responseContent(String url) throws Exception {
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI(url));
InputStream is = client.execute(request).getEntity().getContent();
BufferedReader inb = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder("");
String line;
String NL = System.getProperty("line.separator");
while ((line = inb.readLine()) != null) {
sb.append(line).append(NL);
}
inb.close();
return sb.toString();
}
public String spec(String host, String botid, String custid, String input) {
//System.out.println("--> custid = "+custid);
String spec = "";
try {
if (custid.equals("0")) // get custid on first transaction with Pandorabots
spec = String.format("%s?botid=%s&input=%s",
"http://" + host + "/pandora/talk-xml",
botid,
URLEncoder.encode(input, "UTF-8"));
else spec = // re-use custid on each subsequent interaction
String.format("%s?botid=%s&custid=%s&input=%s",
"http://" + host + "/pandora/talk-xml",
botid,
custid,
URLEncoder.encode(input, "UTF-8"));
} catch (Exception ex) {
ex.printStackTrace();
}
//System.out.println(spec);
return spec;
}
public String pandorabotsRequest(String input, String host, String botid) {
try {
String spec = spec(host, botid, custid, input);
//System.out.println("Spec = "+spec);
String responseContent = responseContent(spec);
return responseContent;
} catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
public String pandorabotsResponse (String xmlRpcResponse, String host, String botid) {
String botResponse = responseFailed;
try {
int n1 = xmlRpcResponse.indexOf("<that>");
int n2 = xmlRpcResponse.indexOf("</that>");
if (n2 > n1)
botResponse = xmlRpcResponse.substring(n1+"<that>".length(), n2);
n1 = xmlRpcResponse.indexOf("custid=");
if (n1 > 0) {
custid = xmlRpcResponse.substring(n1+"custid=\"".length(), xmlRpcResponse.length());
n2 = custid.indexOf("\"");
if (n2 > 0) custid = custid.substring(0, n2);
else custid = defaultCustid;
}
if (botResponse.endsWith(".")) botResponse = botResponse.substring(0, botResponse.length()-1); // snnoying Pandorabots extra "."
} catch (Exception ex) {
ex.printStackTrace();
}
return botResponse;
}
}