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feat: better dump handling logic

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This commit is contained in:
6arelyFuture 2025-01-11 17:15:47 +01:00
parent 9a57cc938e
commit 1d24dd6d91
Signed by: Future
GPG Key ID: F2000F181A4F7C85
3 changed files with 88 additions and 9 deletions
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34
src/main/java/com/diamante/serverlist/ClientEmulator.java
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@ -21,6 +21,7 @@ import java.lang.management.ManagementFactory;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.io.FileReader;
import java.io.IOException;
import java.net.SocketException;
import java.net.SocketTimeoutException;
@ -28,6 +29,11 @@ import java.nio.channels.IllegalBlockingModeException;
import java.util.Set;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
/**
* The purpose of this module is to ping the servers on the server list.
*
@ -77,6 +83,34 @@ public class ClientEmulator implements Runnable {
}
}
public void pingServers(String filePath) {
try {
var parser = new JSONParser();
var root = (JSONObject) parser.parse(new FileReader(filePath));
var serversToParse = (JSONArray) root.get("servers");
for (Object obj : serversToParse) {
var server = (JSONObject) obj;
var ip = (String) server.get("IP");
var port = (long) server.get("port"); // Port is stored as a number
System.out.println(ip + ":" + port);
var to = Utils.stringToServer(ip + ":" + port);
if (to != null) {
handleServer(to);
}
}
}
catch (IOException e) {
System.err.println("Error reading the file: " + e.getMessage());
}
catch (ParseException e) {
System.err.println("Error parsing JSON: " + e.getMessage());
}
}
private void sendDatagramPacket(DatagramPacket packet) {
try {
socket.send(packet);

37
src/main/java/com/diamante/serverlist/Main.java
View File

@ -67,6 +67,7 @@ public class Main {
var emulator = new Option("emulator", "client emulator mode");
var masterPing = new Option("master_ping", "ping the master server");
var serverPing = new Option("server_ping", "ping the master server as a server");
var dumpReplyFromMaster = new Option("dump_reply", "dump info from all the servers listed on the master");
var ping = Option.builder("ping")
.argName("IP:Port")
@ -74,11 +75,19 @@ public class Main {
.desc("Server to ping")
.build();
var fileList = Option.builder("file_list")
.argName("<filename>")
.hasArg()
.desc("Servers to ping")
.build();
options.addOption(master);
options.addOption(emulator);
options.addOption(masterPing);
options.addOption(serverPing);
options.addOption(dumpReplyFromMaster);
options.addOption(ping);
options.addOption(fileList);
return options;
}
@ -95,6 +104,8 @@ public class Main {
var main = new Main();
var options = main.createOptions();
var ip = new String();
var fileList = new String();
boolean dumpReply = false;
var parser = new DefaultParser();
try {
@ -109,12 +120,21 @@ public class Main {
main.setMode(Mode.ServerPing);
}
if (line.hasOption("dump_reply")) {
dumpReply = true;
}
if (line.hasOption("ping")) {
ip = line.getOptionValue("ping");
}
if (line.hasOption("file_list")) {
fileList = line.getOptionValue("file_list");
}
}
catch (ParseException exp) {
System.err.println("Parsing failed. Reason: " + exp.getMessage());
return;
}
if (main.getMode() == Mode.Master) {
@ -125,15 +145,22 @@ public class Main {
}
main.getServer().stop();
} else if (main.getMode() == Mode.Emulator) {
var emulator = new ClientEmulator();
emulator.pingSingleServer(ip);
if (!fileList.isEmpty()) {
var emulator = new ClientEmulator();
emulator.pingServers(fileList);
}
if (!ip.isEmpty()) {
var emulator = new ClientEmulator();
emulator.pingSingleServer(ip);
}
} else if (main.getMode() == Mode.MasterPing) {
var ping = new MasterServerPinger();
ping.pingMaster();
ping.readReplyFromMaster();
ping.readReplyFromMaster(dumpReply);
} else if (main.getMode() == Mode.ServerPing) {
var ping = new ServerEmulator();
ping.pingLoop();
var ping = new ServerEmulator();
ping.pingLoop();
}
System.out.println("Normal shutdown");

26
src/main/java/com/diamante/serverlist/MasterServerPinger.java
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@ -16,6 +16,10 @@
*/
package com.diamante.serverlist;
import java.util.Set;
import java.util.Collections;
import java.util.HashSet;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
@ -64,7 +68,7 @@ public class MasterServerPinger {
}
}
public void readReplyFromMaster() {
public void readReplyFromMaster(Boolean dump) {
var out = new ByteArrayOutputStream();
try {
@ -108,6 +112,8 @@ public class MasterServerPinger {
var root = new JSONObject();
var serverArray = new JSONArray();
Set<Server> serverList = Collections.synchronizedSet(new HashSet<>());
// Process server data
for (int i = 4; i < bytes.length; i += 6) {
if (i + 6 > bytes.length) {
@ -127,6 +133,13 @@ public class MasterServerPinger {
System.out.println(String.format("Server: %s:%d", ipAddress, port));
if (!dump) {
continue;
}
var server = Utils.stringToServer(ipAddress + ":" + port);
serverList.add(server);
var serverObject = new JSONObject();
serverObject.put("IP", ipAddress);
serverObject.put("port", port);
@ -134,10 +147,15 @@ public class MasterServerPinger {
serverArray.add(serverObject);
}
root.put("totalServers", serverCountBE);
root.put("servers", serverArray);
if (dump) {
var thread = new Thread(new ClientEmulator(serverList));
thread.start();
Utils.saveJSONFile(String.format("server_dump_%d.json", System.currentTimeMillis() / 1000L), root);
root.put("totalServers", serverCountBE);
root.put("servers", serverArray);
Utils.saveJSONFile(String.format("server_dump_%d.json", System.currentTimeMillis() / 1000L), root);
}
try {
out.close();