Class PluginManager

java.lang.Object

org.jrd.backend.decompiling.PluginManager

public class PluginManager
extends 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.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PluginManager.BundledCompilerStatus

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ARRAY_FORM
(package private) com.google.gson.Gson	gson
static final Pattern	LAMBDA_FORM
static final String	UNDECOMPILABLE_LAMBDA
private List<DecompilerWrapper>	wrappers

Constructor Summary

Constructors

Constructor	Description
PluginManager()

Method Summary

Modifier and Type	Method	Description
private void	addAndInitDepndenceClass(VmInfo vmInfo, VmManager vmManager, Map<String,byte[]> otherClasses, String clazz, Optional<String> classloader)
void	addWrapper(DecompilerWrapper wrapper)
private int	compileWrapper(DecompilerWrapper wrapper, ByteArrayOutputStream errStream)
DecompilerWrapper	createWrapper()
String	decompile(DecompilerWrapper wrapper, String name, byte[] bytecode, String[] options, VmInfo vmInfo, VmManager vmManager, Optional<String> classloader)
void	deleteWrapper(DecompilerWrapper wrapper)
PluginManager.BundledCompilerStatus	getBundledCompilerStatus(DecompilerWrapper decompiler)
List<DecompilerWrapper>	getWrappers()
boolean	hasBundledCompiler(DecompilerWrapper wrapper)
void	initializeWrapper(DecompilerWrapper wrapper)	Compiles wrapper plugin, loads it into JVM and stores it for later.
static boolean	isArrayForm(String s)
static boolean	isLambdaForm(String s)
static boolean	isUndecompilableLambda(String s)
private void	loadConfig(File file)	Loads information decompiler json file into ListWrapper.
void	loadConfigs()	Searches plugin configuration locations and calls loadConfig(file) on files.
private void	loadConfigsFromLocation(String location)
void	replace(DecompilerWrapper oldWrapper, DecompilerWrapper newWrapper)
void	saveWrapper(DecompilerWrapper wrapper)
void	setLocationForNewWrapper(DecompilerWrapper wrapper)
private void	sortWrappers()
private static String	urlListToCsv(List<ExpandableUrl> list, String delimiter)	Converts list of URLs to CSV String example: (list){URL1,URL2,URL3} -> (String)URL1:URL2:URL3
String	validatePlugin(DecompilerWrapper plugin)	Validating the @param plugin using compilation

Methods inherited from class Object

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

Field Details

wrappers

private List<DecompilerWrapper> wrappers

gson

com.google.gson.Gson gson

ARRAY_FORM

public static final String ARRAY_FORM

See Also:

• Constant Field Values

UNDECOMPILABLE_LAMBDA

public static final String UNDECOMPILABLE_LAMBDA

See Also:

• Constant Field Values

LAMBDA_FORM

public static final Pattern LAMBDA_FORM

Constructor Details

PluginManager

public PluginManager()

Method Details

getWrappers

public List<DecompilerWrapper> getWrappers()

isArrayForm

public static boolean isArrayForm(String s)

isUndecompilableLambda

public static boolean isUndecompilableLambda(String s)

isLambdaForm

public static boolean isLambdaForm(String s)

loadConfigs

public void loadConfigs()

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

loadConfigsFromLocation

private void loadConfigsFromLocation(String location)

loadConfig

private void loadConfig(File file)

Loads information decompiler json file into ListWrapper.

decompile

public String decompile(DecompilerWrapper wrapper,
 String name,
 byte[] bytecode,
 String[] options,
 VmInfo vmInfo,
 VmManager vmManager,
 Optional<String> classloader)
                 throws Exception

Parameters:

wrapper - decompiler used for decompiling

name - optional name for decompilers supporting inner classes

bytecode - bytecode to be decompiled

options - decompile options

vmInfo - optional vmInfo to find inner classes

vmManager - optional vmManager to find inner classes

Returns:

Decompiled bytecode or exception String

Throws:

Exception - the exception String

addAndInitDepndenceClass

private void addAndInitDepndenceClass(VmInfo vmInfo,
 VmManager vmManager,
 Map<String,byte[]> otherClasses,
 String clazz,
 Optional<String> classloader)

getBundledCompilerStatus

public PluginManager.BundledCompilerStatus getBundledCompilerStatus(DecompilerWrapper decompiler)

hasBundledCompiler

public boolean hasBundledCompiler(DecompilerWrapper wrapper)

initializeWrapper

public void initializeWrapper(DecompilerWrapper wrapper)

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

replace

public void replace(DecompilerWrapper oldWrapper,
 DecompilerWrapper newWrapper)
             throws IOException

Throws:

IOException

deleteWrapper

public void deleteWrapper(DecompilerWrapper wrapper)

setLocationForNewWrapper

public void setLocationForNewWrapper(DecompilerWrapper wrapper)

compileWrapper

private int compileWrapper(DecompilerWrapper wrapper,
 ByteArrayOutputStream errStream)

validatePlugin

public String validatePlugin(DecompilerWrapper plugin)

Validating the @param plugin using compilation

Parameters:

plugin - - plugin to validate

Returns:

error message or null

createWrapper

public DecompilerWrapper createWrapper()

saveWrapper

public void saveWrapper(DecompilerWrapper wrapper)
                 throws IOException

Throws:

IOException

sortWrappers

private void sortWrappers()

urlListToCsv

private static String urlListToCsv(List<ExpandableUrl> list,
 String delimiter)

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

addWrapper

public void addWrapper(DecompilerWrapper wrapper)