com.bigdata.jini.start
Class ServiceStarter

java.lang.Object
  com.bigdata.jini.start.ServiceStarter

public class ServiceStarter
extends Object

Starts an unmanaged service using the specified configuration.

The service is executed in a child process using ServiceConfiguration.newServiceStarter(IServiceListener). That child process will have the environment and command line as described for the service in the Configuration resource.

Version:

$Id$

Author:

Bryan Thompson

Constructor Summary

ServiceStarter()

Method Summary

static void	main(String[] args) Executes the named service configuration.
protected static void	usage()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ServiceStarter

public ServiceStarter()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Executes the named service configuration. The configuration file and any overrides will be passed onto the child process. For example:

 java com.bigdata.start.ServiceStarter -Djava.security.policy=policy.all com.bigdata.jini.start.ServicesManagerServer src/resources/config/bigdata.config
 

would execute the ServicesManagerServer, bootstrapping its own execution environment from the same configuration file that it will use itself.

Similar commands can be used to start application specific jini clients serving as masters for distributed jobs.

Parameters:

args - Options followed by the name of the service configuration to execute followed by the the jini Configuration file (or URL), and then by optional overrides.

The defined options are:

-n

Write the command that would be executed on stdout, but do not execute the command. This is useful both if you want to run the command directly and if you want to validate the Configuration.

Throws:

Exception

TODO:

it would be nice if we could start any subclass JavaServiceConfiguration in this manner. The problem is that there is no declarative link between the class name of the server and the class name of the ServiceConfiguration. We would need to be able to figure out the ServiceConfiguration class from the server class name, instantiate the specific ServiceConfiguration class, and then use it to start the service.

usage

protected static void usage()