java-melted-backend

Melted backend library for Magma Playout.

Basically it provides a way of sending MVCP commands to a running Melted telnet server.

You create MeltedCmds through the MeltedCmdFactory class, execute them with exec() method and handle it's response by quering the response object returned by exec().

Command execution blocks until a response is received or until the time out expires.

Here's an example class that demonstrates the ussage of the lib:

import java.util.logging.Logger;
import meltedBackend.commands.MeltedCmd;
import meltedBackend.commands.MeltedCmdApnd;
import meltedBackend.commands.MeltedCmdFactory;
import meltedBackend.common.MeltedCommandException;
import meltedBackend.responseParser.responses.GenericResponse;
import meltedBackend.responseParser.responses.ListResponse;
import meltedBackend.telnetClient.MeltedTelnetClient;

public class LibTest {
    public static void main(String[] args) {
        new LibTest();
    }

    public LibTest(){
        MeltedTelnetClient melted = new MeltedTelnetClient();
        MeltedCmdFactory cmdFactory = new MeltedCmdFactory(melted);

        // Connects to a Melted server
        boolean connected = melted.connect("localhost", 5250, Logger.getLogger(getClass().getName()));
        while(!connected){
            connected = melted.reconnect(3, 1000);
        }

        if(connected){
            // Create some commands
            String unit = "U0";
            MeltedCmdApnd apnd = cmdFactory.getNewApndCmd(unit);
            MeltedCmd play = cmdFactory.getNewPlayCmd(unit);
            MeltedCmd list = cmdFactory.getNewListCmd(unit);
            
            try {
                // Configure and execute commands
                apnd.setFileName("/home/user/videos/vid1.mkv");
                apnd.exec(); // Not parsing response here...

                // apnd object is being reused here.
                // It's response is stored for further use.
                GenericResponse apndResponse = apnd.setFileName("/home/user/videos/a.m4v").exec();
                System.out.println("apnd status is: "+apndResponse.getStatus());

                // Parsing a more complex response
                ListResponse playlist = (ListResponse)list.exec();
                if(playlist.cmdOk()){
                    String[] clips = playlist.getMeltedPlaylist();
                    for(String clip: clips){
                        System.out.println("Playlist: \t"+clip);
                    }
                }

                play.exec();                
            } catch (MeltedCommandException e) {
                e.printStackTrace();
            }
        }
    }
}