Class AbstractLauncher

java.lang.Object

org.jdrupes.builder.startup.AbstractLauncher

All Implemented Interfaces:

Launcher

Direct Known Subclasses:

BootstrapLauncher, DirectLauncher

public abstract class AbstractLauncher
extends Object
implements Launcher

A default implementation of a Launcher.

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.apache.commons.cli.CommandLine	commandLine	The command line.
protected static final Properties	jdbldProps	The JDrupes Builder properties read from the file .jdbld.properties in the root project.
protected final Logger	log	The log.

Constructor Summary

Constructors

Constructor	Description
AbstractLauncher(String[] args)	Instantiates a new abstract launcher.

Method Summary

Modifier and Type	Method	Description
protected final org.apache.commons.cli.Options	baseOptions()	Return the handled options.
protected void	findProjects(ClassLoader clsLoader, List<Class<? extends RootProject>> rootProjects, List<Class<? extends Project>> subprojects)	Find projects.
protected final <T> T	unwrapBuildException(Callable<T> todo)	A utility method that invokes the callable.

Methods inherited from class Object

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

Methods inherited from interface Launcher

provide

Field Details

jdbldProps

protected static final Properties jdbldProps

The JDrupes Builder properties read from the file .jdbld.properties in the root project.

log

protected final Logger log

The log.

commandLine

protected final org.apache.commons.cli.CommandLine commandLine

The command line.

Constructor Details

AbstractLauncher

public AbstractLauncher(String[] args)

Instantiates a new abstract launcher.

Parameters:

args - the command line arguments

Method Details

baseOptions

protected final org.apache.commons.cli.Options baseOptions()

Return the handled options.

Returns:

the options

findProjects

protected void findProjects(ClassLoader clsLoader,
 List<Class<? extends RootProject>> rootProjects,
 List<Class<? extends Project>> subprojects)

Find projects. The classpath is scanned for classes that implement Project but do not implement Masked.

Parameters:

clsLoader - the cls loader

rootProjects - classes that implement RootProject

subprojects - classes that implement Project but not RootProject

unwrapBuildException

protected final <T> T unwrapBuildException(Callable<T> todo)

A utility method that invokes the callable. If an exception occurs during the invocation, it unwraps the causes until it finds the root BuildException, prints the message from this exception and exits.

Type Parameters:

T - the generic type

Parameters:

todo - the todo

Returns:

the t