org.diet4j.cmdline

Class CmdlineBootLoader

java.lang.Object

org.diet4j.cmdline.CmdlineBootLoader

public abstract class CmdlineBootLoader
extends Object

Acts as the main() program in a diet4j-based application. Based on passed-in parameters, it instantiates a ModuleRegistry, figures out what Modules are available, resolves and activates the top-most Module and all its mandatory dependencies, and runs it.

Field Summary

Fields

Modifier and Type	Field and Description
protected static File[]	theModuleDirectories The paths to the Module JAR files.
protected static ModuleRequirement	theRootModuleRequirement The ModuleRequirement for the root Module to start.
protected static String[]	theRunArguments The arguments to the run
protected static String	theRunClassName The name of the run class in the root Module, if specified on the command-line.
protected static String	theRunMethodName The name of the run method in the run class, if specified on the command-line.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CmdlineBootLoader() Private constructor to keep this from being instantiated.

Method Summary

Modifier and Type	Method and Description
static void	fatal(String msg) Print fatal error and quit.
static void	helpAndQuit() Print help text and quit.
static void	main(String[] args) The main program from the Java perspective: just a shell that catches exceptions.

Methods inherited from class java.lang.Object

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

Field Detail

theModuleDirectories

protected static File[] theModuleDirectories

The paths to the Module JAR files.

theRunClassName

protected static String theRunClassName

The name of the run class in the root Module, if specified on the command-line.

theRunMethodName

protected static String theRunMethodName

The name of the run method in the run class, if specified on the command-line.

theRootModuleRequirement

protected static ModuleRequirement theRootModuleRequirement

The ModuleRequirement for the root Module to start.

theRunArguments

protected static String[] theRunArguments

The arguments to the run

Constructor Detail

CmdlineBootLoader

protected CmdlineBootLoader()

Private constructor to keep this from being instantiated.

Method Detail

main

public static void main(String[] args)

The main program from the Java perspective: just a shell that catches exceptions.

Parameters:

args - arguments provided by the user

helpAndQuit

public static void helpAndQuit()

Print help text and quit.

fatal

public static void fatal(String msg)

Print fatal error and quit.

Parameters:

msg - the error message