Package io.joshworks.snappy.loader

Class ExecutableArchiveLauncher

java.lang.Object

io.joshworks.snappy.loader.Launcher

io.joshworks.snappy.loader.ExecutableArchiveLauncher

Direct Known Subclasses:

JarLauncher, WarLauncher

public abstract class ExecutableArchiveLauncher
extends Launcher

Base class for executable archive Launchers.

Author:

Phillip Webb, Andy Wilkinson

Field Summary

Fields inherited from class io.joshworks.snappy.loader.Launcher

logger

Constructor Summary

Constructors

Modifier	Constructor	Description
	ExecutableArchiveLauncher()
protected	ExecutableArchiveLauncher(Archive archive)
	ExecutableArchiveLauncher(JavaAgentDetector javaAgentDetector)

Method Summary

Modifier and Type	Method	Description
protected ClassLoader	createClassLoader(URL[] urls)	Create a classloader for the specified URLs.
protected Archive	getArchive()
protected List<Archive>	getClassPathArchives()	Returns the archives that will be used to construct the class path.
protected String	getMainClass()	Returns the main class that should be launched.
protected abstract boolean	isNestedArchive(Archive.Entry entry)	Determine if the specified JarEntry is a nested item that should be added to the classpath.
protected void	postProcessClassPathArchives(List<Archive> archives)	Called to post-process archive entries before they are used.

Methods inherited from class io.joshworks.snappy.loader.Launcher

createArchive, createClassLoader, createMainMethodRunner, launch, launch

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutableArchiveLauncher

public ExecutableArchiveLauncher()

ExecutableArchiveLauncher

public ExecutableArchiveLauncher(JavaAgentDetector javaAgentDetector)

ExecutableArchiveLauncher

protected ExecutableArchiveLauncher(Archive archive)

Method Detail

getArchive

protected final Archive getArchive()

getMainClass

protected String getMainClass()
                       throws Exception

Description copied from class: Launcher

Returns the main class that should be launched.

Specified by:

getMainClass in class Launcher

Returns:

the name of the main class

Throws:

Exception - if the main class cannot be obtained

getClassPathArchives

protected List<Archive> getClassPathArchives()
                                      throws Exception

Description copied from class: Launcher

Returns the archives that will be used to construct the class path.

Specified by:

getClassPathArchives in class Launcher

Returns:

the class path archives

Throws:

Exception - if the class path archives cannot be obtained

createClassLoader

protected ClassLoader createClassLoader(URL[] urls)
                                 throws Exception

Description copied from class: Launcher

Create a classloader for the specified URLs.

Overrides:

createClassLoader in class Launcher

Parameters:

urls - the URLs

Returns:

the classloader

Throws:

Exception - if the classloader cannot be created

isNestedArchive

protected abstract boolean isNestedArchive(Archive.Entry entry)

Determine if the specified JarEntry is a nested item that should be added to the classpath. The method is called once for each entry.

Parameters:

entry - the jar entry

Returns:

true if the entry is a nested item (jar or folder)

postProcessClassPathArchives

protected void postProcessClassPathArchives(List<Archive> archives)
                                     throws Exception

Called to post-process archive entries before they are used. Implementations can add and remove entries.

Parameters:

archives - the archives

Throws:

Exception - if the post processing fails