In Dropwizard how a custom command class to be execute on application startup startup, please suggest. In command I want to create tables on run time

[ramranjan shukla]

Friends,

I am new to dropwizard and have to modify and existing application, please suggest me on my below querries.

1. I want to execute my command class when my main application class gets executed as in my custom command class I have create database tables on run time.

2. While I write Bootstrap.addCommand((new MyCommand("ganesh", "ram")); , this will create instance but run method of MyCommand is not getting executed, am I missing something here to add some code?

Code Examples which I am trying.

public class App extends Application<MyConfig> {

private static final Logger LOGGER = LoggerFactory.getLogger(App.class);

@Override

public void initialize(Bootstrap<MyConfig> b) {

System.out.println(">>inside initialize");

b.addCommand(new MyCommand("ganesh", "ram"));

}

@Override

public void run(MyConfig c, Environment e) throws Exception 

{

// here some more statements which gets executed when App class runs.

       }

}

//Command class

public class MyCommand extends ConfiguredCommand<MyConfig>{

protected MyCommand(String name, String description) {

super(name, description);

// TODO Auto-generated constructor stub

}

@Override

protected void run(Bootstrap<MyConfig> bootstrap, Namespace namespace, MyConfig configuration)

throws Exception {

//Here I will write code to creat tables but how this run method will execute automatically?

}

}

Thanks,

Ram

[Peter Stackle]

Answered in the dropwizard-user forum.

[ramranjan shukla]

Thanks Peter,

I pass the name of custome command as first command line argument followed by name of yaml file as second argument and it worked for me.

Many thanks.

Cheers'

Ram