org.springframework.boot.loader.tools

Class Repackager

java.lang.Object

org.springframework.boot.loader.tools.Repackager

public class Repackager
extends Object

Utility class that can be used to repackage an archive so that it can be executed using 'java -jar'.

Author:

Phillip Webb, Andy Wilkinson, Stephane Nicoll

Constructor Summary

Constructors

Constructor and Description
Repackager(File source)

Method Summary

Modifier and Type	Method and Description
protected String	findMainMethod(JarFile source)
File	getBackupFile() Return the File to use to backup the original source.
void	repackage(File destination, Libraries libraries) Repackage to the given destination so that it can be launched using ' java -jar'.
void	repackage(File destination, Libraries libraries, LaunchScript launchScript) Repackage to the given destination so that it can be launched using ' java -jar'.
void	repackage(Libraries libraries) Repackage the source file so that it can be run using 'java -jar'.
void	setBackupSource(boolean backupSource) Sets if source files should be backed up when they would be overwritten.
void	setLayout(Layout layout) Sets the layout to use for the jar.
void	setMainClass(String mainClass) Sets the main class that should be run.

Methods inherited from class java.lang.Object

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

Constructor Detail

Repackager

public Repackager(File source)

Method Detail

setMainClass

public void setMainClass(String mainClass)

Sets the main class that should be run. If not specified the value from the MANIFEST will be used, or if no manifest entry is found the archive will be searched for a suitable class.

Parameters:

mainClass - the main class name

setBackupSource

public void setBackupSource(boolean backupSource)

Sets if source files should be backed up when they would be overwritten.

Parameters:

backupSource - if source files should be backed up

setLayout

public void setLayout(Layout layout)

Sets the layout to use for the jar. Defaults to Layouts.forFile(File).

Parameters:

layout - the layout

repackage

public void repackage(Libraries libraries)
               throws IOException

Repackage the source file so that it can be run using 'java -jar'.

Parameters:

libraries - the libraries required to run the archive

Throws:

IOException - if the file cannot be repackaged

repackage

public void repackage(File destination,
                      Libraries libraries)
               throws IOException

Repackage to the given destination so that it can be launched using ' java -jar'.

Parameters:

destination - the destination file (may be the same as the source)

libraries - the libraries required to run the archive

Throws:

IOException - if the file cannot be repackaged

repackage

public void repackage(File destination,
                      Libraries libraries,
                      LaunchScript launchScript)
               throws IOException

Repackage to the given destination so that it can be launched using ' java -jar'.

Parameters:

destination - the destination file (may be the same as the source)

libraries - the libraries required to run the archive

launchScript - an optional launch script prepended to the front of the jar

Throws:

IOException - if the file cannot be repackaged

Since:

1.3.0

getBackupFile

public final File getBackupFile()

Return the File to use to backup the original source.

Returns:

the file to use to backup the original source

findMainMethod

protected String findMainMethod(JarFile source)
                         throws IOException

Throws:

IOException