/**
* Process Pull query request
*
* @param request
* @return
*/
public Response PullQueryRequestProcess(Request request) {
String[] msg = request.getMessage().get(0).trim().split("\\s+");
this.setNextPeerHostName(msg[0]);
this.setNextPeerPort(msg[1]);
this.setNextPeerID(request.getPeerID());
ArrayList<String> responseMessage = new ArrayList<String>();
responseMessage.add("blah");
return new Response(Settings.Version, "PULL", "1", "200", "ok", responseMessage);
}
/**
* This is the RequestProcessor thread that continuously processes Client Requests from the
* RequestProcessor Request Queue.
*/
public void run() {
done = false;
while (!done) {
if (!requests.isEmpty()) {
Request r = requests.remove();
System.out.println("Processing Request: " + r.getMessage());
protocol.processRequest(r);
} else {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
* Process Query request
*
* @param request
* @return
*/
public Response QueryRequestProcess(Request request) {
ArrayList<String> responseMessage = new ArrayList<String>();
String msg = request.getMessage().get(0).trim();
int key = PeerNode.getAscii(msg) % this.getMaxId();
Hashtable<Integer, String> hashtbl = this.getHashtable();
if (hashtbl.containsValue(msg)) {
return new Response(Settings.Version, "QUERY", "0", "200", "OK", responseMessage);
} else if (getInt(this.getID()) <= key && key < getInt(this.getNextPeerID())
|| getInt(this.getID()) <= key && getInt(this.getID()) > getInt(this.getNextPeerID())
|| getInt(this.getNextPeerID()) > key
&& getInt(this.getID()) > getInt(this.getNextPeerID())) {
return new Response(Settings.Version, "ADD", "0", "201", "NotPresent", responseMessage);
} else {
responseMessage.add(msg);
return new Response(Settings.Version, "ADD", "0", "400", "NotResponsible", responseMessage);
}
}
/**
* Process Add query request
*
* @param request
* @return
*/
public Response AddQueryRequestProcess(Request request) {
ArrayList<String> responseMessage = new ArrayList<String>();
String msg = request.getMessage().get(0).trim();
int key =
PeerNode.getAscii(msg)
% this
.getMaxId(); // get the Ascii value and convert it to the range of ids by modula
// maxId
Hashtable<Integer, String> hashtbl = this.getHashtable();
if (hashtbl.containsValue(msg)) {
return new Response(Settings.Version, "ADD", "0", "202", "duplicate", responseMessage);
} else if (getInt(this.getID()) <= key && key < getInt(this.getNextPeerID())
|| getInt(this.getID()) <= key && getInt(this.getID()) > getInt(this.getNextPeerID())
|| getInt(this.getNextPeerID()) > key
&& getInt(this.getID()) > getInt(this.getNextPeerID())) {
hashtbl.put(key, msg);
return new Response(Settings.Version, "ADD", "0", "200", "ok", responseMessage);
} else {
responseMessage.add(msg);
nextClient(new Request("ADD", Settings.Version, 0, this.getID(), responseMessage).toString());
return new Response(Settings.Version, "ADD", "0", "400", "NotResponsible", responseMessage);
}
}
