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Steam4J

Steam4J is an open-source project that strives provides full wrapping of game server queries.

Navigation

1. Dependencies
2. Dependencies
3. Dependencies

##Dependencies This project requires JDK 11+
Maven dependencies in the project:

• Lombok: 1.18.16

##Features The list of the features currently implemented in the project:

• Rcon:
  • Authentication to server with IP and Port
  • Executing commands to the server and receiving answer
  • Receiving commands from the server without sending commands. Listing to game console
  • Support of multi-package answers
• Server Queries
  • A2S_INFO
  • A2S_PLAYER
  • A2S_RULES
  • A2S_PING and A2S_SERVERQUERY_GETCHALLENGE are depricated

##Installation Download project from release page of the project

or

Add dependency to your project manager
Maven:

<dependency>
    <artefactId>com.antonio112009</artefactId>
    <groupId>steam4j</groupId>
    <version>1.0.0</version>
</dependency>

Code examples

Rcon examples:

Execute single command:

public class SendingSingleCommand {
 
  public static void main(String[] args) {
    Rcon rcon = new Rcon("0.0.0.0", 21114);
    rcon.openStream();
    boolean isAuthenticated = rcon.authenticate(password);
    if(isAuthenticated) {
        String answerFromServer = rcon.sendCommand("ListPlayers");
        System.out.println("Answer: " + answerFromServer);
    }
    rcon.closeStream(); //optional if it's in the end of the program
  }
  
}

Execute multiple command:

public class SendingMultipleCommand {
 
  public static void main(String[] args) {
    Rcon rcon = new Rcon("0.0.0.0", 21114);
    rcon.openStream();
    boolean isAuthenticated = rcon.authenticate(password);
    if(isAuthenticated) {
      System.out.println("Answer1: " + rcon.sendCommand("ListPlayers"));
      System.out.println("Answer2: " + rcon.sendCommand("GetCurrentScore"));
      System.out.println("Answer3: " + rcon.sendCommand("ChatToAll Hello world!"));
        System.out.println("Answer: " + answerFromServer);
    }
    rcon.closeStream(); //optional if it's in the end of the program
  }
  
}

Receiving non-stop messages from a server (no execution of commands). Usually console logs:

public class ReceiveServerLogs {
 
  public static void main(String[] args) {
    Rcon rcon = new Rcon("0.0.0.0", 21114);
    rcon.openStream();
    boolean isAuthenticated = rcon.authenticate(password);
    while (isAuthenticated) {
        try {
            System.out.println("Answer: " + rcon.receivingServerMessages());
        } catch (IOException e) {
            e.printStackTrace();
            rcon.closeStream(); //optional if it's in the end of the program
            break;
        }
    }
  }
  
}

Server Queries (A2S):

All objects represent response format of data that are shown in details on the official Valve developer page.

Server information

Getting information of the server. Read more here

public class GetServerInformation {
    
  public static void main(String[] args) {
    A2s a2s = new A2S("0.0.0.0", 27166);
    ServerInfo serverInfo = a2S.getServerInfo();
    System.out.println("Result:\n" + serverInfo.toString());
  }
  
}

Server players

Getting information of the server. Read more here

public class GetServerInformation {
    
  public static void main(String[] args) {
    A2s a2s = new A2S("0.0.0.0", 27166);
    Players players = a2S.getPlayers();
    System.out.println("Result:\n" + players.toString());
  }
  
}

Server rules

Getting information of the server. Read more here

public class GetServerInformation {
    
  public static void main(String[] args) {
    A2s a2s = new A2S("0.0.0.0", 27166);
    Rules rules = a2S.getRules();
    System.out.println("Result:\n" + rules.toString());
  }
  
}

Contribution

The contribution template and format is currently under development. Anyway, you are welcome to contribute this project.