Package org.jrd.backend.decompiling

Class PluginManager

java.lang.Object

org.jrd.backend.decompiling.PluginManager

public class PluginManager
extends java.lang.Object

Executes manages external decompiler wrapper plugins. Wrapper plugins are stored as .java files along with .json file containing classname, wrapper url and dependencies url. When user calls decompile method with decompiler name and bytecode, wrapper plugin gets compiled and executed.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) com.google.gson.Gson	gson
static java.util.regex.Pattern	LAMBDA_FORM
static java.lang.String	UNDECOMPILABLE_LAMBDA
private java.util.List<DecompilerWrapperInformation>	wrappers

Constructor Summary

Constructors

Constructor	Description
PluginManager()

Method Summary

Modifier and Type	Method	Description
private int	compileWrapper(DecompilerWrapperInformation wrapper, java.io.ByteArrayOutputStream errStream)
static void	createUserPluginDir()
DecompilerWrapperInformation	createWrapper()
java.lang.String	decompile(DecompilerWrapperInformation wrapper, java.lang.String name, byte[] bytecode, java.lang.String[] options, VmInfo vmInfo, VmManager vmManager)
void	deleteWrapper(DecompilerWrapperInformation wrapperInformation)
static java.lang.String	flipWrapperExtension(java.lang.String filePath)
java.util.List<DecompilerWrapperInformation>	getWrappers()
boolean	haveCompiler(DecompilerWrapperInformation wrapper)
private void	InitializeWrapper(DecompilerWrapperInformation wrapper)	Compiles wrapper plugin, loads it into JVM and stores it for later.
private boolean	isDecompilableInnerClass(java.lang.String baseClass, java.lang.String currentClass)
private void	loadConfig(java.io.File file)	Loads information decompiler json file into ListWrapper.
void	loadConfigs()	Searches plugin configuration locations and calls loadConfig(file) on files.
void	replace(DecompilerWrapperInformation oldWrapper, DecompilerWrapperInformation newWrapper)
void	saveWrapper(DecompilerWrapperInformation wrapper)
void	setLocationForNewWrapper(DecompilerWrapperInformation wrapperInformation)
private java.lang.String	URLListToCSV(java.util.List<ExpandableUrl> list, java.lang.String delimeter)	Converts list of URLs to CSV String example: (list){URL1,URL2,URL3} -> (String)URL1:URL2:URL3
java.lang.String	validatePlugin(DecompilerWrapperInformation plugin)	Validating the @param plugin using compilation

Methods inherited from class java.lang.Object

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

Field Detail

wrappers

private java.util.List<DecompilerWrapperInformation> wrappers

gson

com.google.gson.Gson gson

UNDECOMPILABLE_LAMBDA

public static final java.lang.String UNDECOMPILABLE_LAMBDA

See Also:

Constant Field Values

LAMBDA_FORM

public static final java.util.regex.Pattern LAMBDA_FORM

Constructor Detail

PluginManager

public PluginManager()

Method Detail

getWrappers

public java.util.List<DecompilerWrapperInformation> getWrappers()

loadConfigs

public void loadConfigs()

Searches plugin configuration locations and calls loadConfig(file) on files.

loadConfig

private void loadConfig(java.io.File file)

Loads information decompiler json file into ListWrapper.

isDecompilableInnerClass

private boolean isDecompilableInnerClass(java.lang.String baseClass,
                                         java.lang.String currentClass)

decompile

public java.lang.String decompile(DecompilerWrapperInformation wrapper,
                                  java.lang.String name,
                                  byte[] bytecode,
                                  java.lang.String[] options,
                                  VmInfo vmInfo,
                                  VmManager vmManager)
                           throws java.lang.Exception

Parameters:

wrapper - decompiler used for decompiling

name - optional name for decompielrs supporting inner classes

bytecode - bytecode to be decompiled

options - decompile options

vmInfo - otional vminfo to find inner classes

vmManager - otional vmmanager to find inner classes

Returns:

Decompiled bytecode or exception String

Throws:

java.lang.Exception - exception String

haveCompiler

public boolean haveCompiler(DecompilerWrapperInformation wrapper)
                     throws java.lang.Exception

Throws:

java.lang.Exception

InitializeWrapper

private void InitializeWrapper(DecompilerWrapperInformation wrapper)

Compiles wrapper plugin, loads it into JVM and stores it for later.

replace

public void replace(DecompilerWrapperInformation oldWrapper,
                    DecompilerWrapperInformation newWrapper)
             throws java.io.IOException

Throws:

java.io.IOException

deleteWrapper

public void deleteWrapper(DecompilerWrapperInformation wrapperInformation)

setLocationForNewWrapper

public void setLocationForNewWrapper(DecompilerWrapperInformation wrapperInformation)

compileWrapper

private int compileWrapper(DecompilerWrapperInformation wrapper,
                           java.io.ByteArrayOutputStream errStream)

validatePlugin

public java.lang.String validatePlugin(DecompilerWrapperInformation plugin)

Validating the @param plugin using compilation

Parameters:

plugin - - plugin to validate

Returns:

error message or null

createWrapper

public DecompilerWrapperInformation createWrapper()

saveWrapper

public void saveWrapper(DecompilerWrapperInformation wrapper)
                 throws java.io.IOException

Throws:

java.io.IOException

createUserPluginDir

public static void createUserPluginDir()

URLListToCSV

private java.lang.String URLListToCSV(java.util.List<ExpandableUrl> list,
                                      java.lang.String delimeter)

Converts list of URLs to CSV String
example: (list){URL1,URL2,URL3} -> (String)URL1:URL2:URL3

flipWrapperExtension

public static java.lang.String flipWrapperExtension(java.lang.String filePath)