CTL
Class RUtil

java.lang.Object
  CTL.RUtil

public class RUtil
extends java.lang.Object

Static utility functions which did not fit anywhere else

Field Summary

private static int	halt Keeps track of recursive calls to avoid infinite loops
static java.lang.reflect.Method	serialrd Method objects for serialRead() and serialWrite()
static java.lang.reflect.Method	serialrd2 Method objects for serialRead() and serialWrite()
static java.lang.reflect.Method	serialwr Method objects for serialRead() and serialWrite()

Constructor Summary

RUtil()

Method Summary

private static java.lang.String	__stackTrace(java.lang.StackTraceElement[] trace) Stacktrace printer helper function
private static java.lang.String	__stackTrace(java.lang.StackTraceElement[] trace, int len) Stacktrace printer helper function
static java.lang.Class	classToRI(java.lang.Class klas) Find the remote interface class for an implementation class
static java.lang.String	converter(java.lang.String type, java.lang.String convert_me) Retrieve a conversion code snippet for a certain type
static void	except(java.lang.Exception e) Properly decode and display an exception
static java.lang.String	getBase(java.lang.String name) Get the implementation class of some CI/RI
static char	getCID(java.lang.reflect.Constructor construct) Get the FID for a certain constructor
static char	getFID(java.lang.reflect.Method method) Get the FID for a certain method
static java.lang.reflect.Method	getReader(java.lang.String type) Returns a reader function for the specified type
static java.lang.reflect.Method	getReceiver(java.lang.String type) Returns a receiver function for the specified type
static java.lang.reflect.Method	getWriter(java.lang.String type) Returns a writer function for the specified type
static void	main(java.lang.String[] args)
static int	objSize(java.lang.Object obj) Calculate the serialized size of an object
static int	optInt(gnu.getopt.Getopt g) Extract an integer from a CLI option
static PeerID	optPeerID(gnu.getopt.Getopt g) Extract a PeerID from a CLI option
static PeerID	optPeerID(java.lang.String arg) Extract a PeerID from a CLI option
static java.lang.String	optString(gnu.getopt.Getopt g) Extract a String from a CLI option
static java.lang.String	reader2str(java.lang.String reader) Convert a reader function to string
static java.lang.String	stackTrace() Pretty print stacktrace of the current thread
static java.lang.String	stackTrace(java.lang.Exception e) Print the backtrace of an exception
static int	tryInt(java.lang.String str) Fault-tolerant string to integer conversion

Methods inherited from class java.lang.Object

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

Field Detail

serialrd

public static java.lang.reflect.Method serialrd

Method objects for serialRead() and serialWrite()

serialrd2

public static java.lang.reflect.Method serialrd2

Method objects for serialRead() and serialWrite()

serialwr

public static java.lang.reflect.Method serialwr

Method objects for serialRead() and serialWrite()

halt

private static int halt

Keeps track of recursive calls to avoid infinite loops

Constructor Detail

RUtil

public RUtil()

Method Detail

stackTrace

public static java.lang.String stackTrace(java.lang.Exception e)

Print the backtrace of an exception

Parameters:

e - Exception

Returns:

String

__stackTrace

private static java.lang.String __stackTrace(java.lang.StackTraceElement[] trace)

Stacktrace printer helper function

Parameters:

trace - Stacktrace element

Returns:

String

__stackTrace

private static java.lang.String __stackTrace(java.lang.StackTraceElement[] trace,
                                             int len)

Stacktrace printer helper function

Parameters:

trace - Stacktrace element

len - Length

Returns:

String

stackTrace

public static java.lang.String stackTrace()

Pretty print stacktrace of the current thread

Returns:

String

except

public static void except(java.lang.Exception e)

Properly decode and display an exception

Parameters:

e - Exception

getFID

public static char getFID(java.lang.reflect.Method method)

Get the FID for a certain method

Parameters:

method - Method

Returns:

FunctionID

getCID

public static char getCID(java.lang.reflect.Constructor construct)

Get the FID for a certain constructor

Parameters:

construct - Constructor

Returns:

FunctionID

getReader

public static java.lang.reflect.Method getReader(java.lang.String type)

Returns a reader function for the specified type

Parameters:

type - Type to read

Returns:

Method which can read the type

getWriter

public static java.lang.reflect.Method getWriter(java.lang.String type)

Returns a writer function for the specified type

Parameters:

type - Type to write

Returns:

Method which can write the type

getReceiver

public static java.lang.reflect.Method getReceiver(java.lang.String type)

Returns a receiver function for the specified type

Parameters:

type - Type to receive

Returns:

Method which can receive the type

reader2str

public static java.lang.String reader2str(java.lang.String reader)

Convert a reader function to string

Parameters:

reader - Reader function

Returns:

String

classToRI

public static java.lang.Class classToRI(java.lang.Class klas)
                                 throws java.lang.ClassNotFoundException

Find the remote interface class for an implementation class

Parameters:

klas - Implementation class

Returns:

RI class

Throws:

java.lang.ClassNotFoundException

objSize

public static int objSize(java.lang.Object obj)
                   throws java.io.IOException,
                          java.lang.IllegalAccessException,
                          java.lang.reflect.InvocationTargetException,
                          CTLException

Calculate the serialized size of an object

Parameters:

obj - Object

Returns:

Size

Throws:

java.io.IOException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

CTLException

converter

public static java.lang.String converter(java.lang.String type,
                                         java.lang.String convert_me)

Retrieve a conversion code snippet for a certain type

Parameters:

type - Type

convert_me - Name of the variable to convert

Returns:

Code

tryInt

public static int tryInt(java.lang.String str)

Fault-tolerant string to integer conversion

Parameters:

str - String to convert

Returns:

Integer

optPeerID

public static PeerID optPeerID(java.lang.String arg)

Extract a PeerID from a CLI option

Parameters:

arg - String

Returns:

PeerID

optPeerID

public static PeerID optPeerID(gnu.getopt.Getopt g)

Extract a PeerID from a CLI option

Parameters:

g - Getopt parser object

Returns:

PeerID

optInt

public static int optInt(gnu.getopt.Getopt g)

Extract an integer from a CLI option

Parameters:

g - Getopt parser object

Returns:

Integer

optString

public static java.lang.String optString(gnu.getopt.Getopt g)

Extract a String from a CLI option

Parameters:

g - Getopt parser object

Returns:

String

getBase

public static java.lang.String getBase(java.lang.String name)

Get the implementation class of some CI/RI

Parameters:

name - CI/RI name

Returns:

Name of the implementation class or null if it does not have any / is not an RI

main

public static void main(java.lang.String[] args)