WebSocketClient

Java Module for connecting to TCP-IP WebSockets without any other external dependencies. (this module uses javax.websocket module which is included in this package jar file)

Installation

Simply include the WebSocketClient.jar file in your project.

Special Guide For Android Projects:

Create libs folder in your app folder where your app level build.gradle file is present.
Download WebSocketClient.jar from here, and place it in the libs folder created in previous step.
In your app level build.gradle file, add the following line in dependencies block:

implementation fileTree(dir: "libs", include: ["*.jar"])

Done!

Usage

Simply use this code (Modify according to your needs):

import com.abhaytr.tools.*;

class YourClass
{
  
  public static void main(String args[])
  {
    WebSocketClient ws = new WebSocketClient("wss://your-url.com/ws", new MessageListener()    //Replace "wss://your-url.com/ws" with Client's Web Socket URL.
    {
        
	@Ovveride
	public void onOpen()
	{
	    //Called when connection is established between Web Socket Server and Client.
	}

	@Ovveride
	public void onMessage(String message)
	{
	    /*
	    Called when Web Socket Server sends a message to the client.
  	    "message" contains the message sent from the Web Socket Server.
	    */
	}

	@Ovveride
	public void onClose(String error)
	{
	    /*
	    Called when connection is disrupted/failed between Web Socket Server and Client.
  	    "error" is the reason for connection disruption/failiure.
	    */
	}

    });
    //Functions available for module specified below in "Functions" section.
  }

}

Functions

addMessageListener(MessageListener msgListener)

ws.addMessageListener(new MessageListener()
{
        
    @Ovveride
    public void onOpen()
    {
	//Called when connection is established between Web Socket Server and Client.
    }

    @Ovveride
    public void onMessage(String message)
    {
	/*
	Called when Web Socket Server sends a message to the client.
  	"message" contains the message sent from the Web Socket Server.
	*/
    }

    @Ovveride
    public void onClose(String error)
    {
	/*
	Called when connection is disrupted/failed between Web Socket Server and Client.
  	"error" is the reason for connection disruption/failiure.
	*/
    }

});

Attaches a listener (java interface) which handles events such as onOpen(), onClose(String error) and onMessage(String message).

sendMessage(String message)

ws.sendMessage("Hello Web Socket Server!");   //Replace "Hello Web Socket Server!" with Client's message.

Sends Client's message to the Web Socket Server.

Useful for realtime connections using TCP-IP Web Sockets in Java.