org.zeroturnaround.javarebel.integration.util

Class JavassistUtil

java.lang.Object

org.zeroturnaround.javarebel.integration.util.JavassistUtil

public final class JavassistUtil
extends Object

This util is for the happy path of CtClass methods if you don'l like it then don't use this method and catch your own exceptions

Author:

Andres Luuk

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JavassistUtil.MethodCallReplaceEditor

Constructor Summary

Constructors

Constructor and Description
JavassistUtil()

Method Summary

Modifier and Type	Method and Description
static void	addLocalForParameter(org.zeroturnaround.bundled.javassist.CtMethod ctMethod, int param, String name) Initializes a named local var from a param.
static org.zeroturnaround.bundled.javassist.CtConstructor	getDeclaredConstructor(org.zeroturnaround.bundled.javassist.ClassPool cp, String klazz, String[] param)
static org.zeroturnaround.bundled.javassist.CtMethod	getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName) Finds a declared method by name .
static org.zeroturnaround.bundled.javassist.CtMethod	getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, Class<?>... paramClasses) Finds a declared method by name and params.
static org.zeroturnaround.bundled.javassist.CtMethod	getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, String... paramClasses) Finds a declared method by name and params.
static org.zeroturnaround.bundled.javassist.CtClass	getFirstExistingClass(org.zeroturnaround.bundled.javassist.ClassPool cp, String... classNames) Returns the first class out of the given ones that is found in the classpool or null if none is found.
static org.zeroturnaround.bundled.javassist.CtField	getFirstExistingField(org.zeroturnaround.bundled.javassist.CtClass ctClass, String... fieldNames)
static org.zeroturnaround.bundled.javassist.CtMethod	getFirstExistingMethod(org.zeroturnaround.bundled.javassist.CtMethod first, org.zeroturnaround.bundled.javassist.ClassPool cp, org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, Class<?>... param)
static org.zeroturnaround.bundled.javassist.CtMethod	getFirstExistingMethod(org.zeroturnaround.bundled.javassist.CtMethod first, org.zeroturnaround.bundled.javassist.ClassPool cp, org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, String... param)
static boolean	hasClass(org.zeroturnaround.bundled.javassist.ClassPool cp, String className)
static boolean	hasDeclaredConstructor(org.zeroturnaround.bundled.javassist.ClassPool cp, String klazz, String[] param)
static boolean	hasDeclaredField(org.zeroturnaround.bundled.javassist.CtClass ctClass, String fieldName)
static boolean	hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp, org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, String[] param)
static boolean	hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp, String klazz, String methodName)
static boolean	hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp, String klazz, String methodName, String[] param)
static boolean	hasDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName)
static boolean	hasMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass, String methodName, String methodDesc)
static boolean	hasMethodOnField(org.zeroturnaround.bundled.javassist.CtClass ctClass, String fieldName, String methodName, String... paramClasses)
static boolean	implementsInterface(org.zeroturnaround.bundled.javassist.CtClass ctClass, String ifaceName)
static void	init()
static boolean	isFieldVisible(org.zeroturnaround.bundled.javassist.CtClass user, String name) Checks if field with given name is visible from user
static boolean	isMethodVisible(org.zeroturnaround.bundled.javassist.CtClass caller, String name) Checks if method with given name is visible from caller
static void	removeFinalModifer(org.zeroturnaround.bundled.javassist.CtClass ctClass, String field)

Methods inherited from class java.lang.Object

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

Constructor Detail

JavassistUtil

public JavassistUtil()

Method Detail

init

public static void init()

hasClass

public static boolean hasClass(org.zeroturnaround.bundled.javassist.ClassPool cp,
                               String className)

hasDeclaredMethod

public static boolean hasDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                        String methodName)

hasDeclaredMethod

public static boolean hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                        org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                        String methodName,
                                        String[] param)

hasDeclaredMethod

public static boolean hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                        String klazz,
                                        String methodName)

hasDeclaredMethod

public static boolean hasDeclaredMethod(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                        String klazz,
                                        String methodName,
                                        String[] param)

hasDeclaredConstructor

public static boolean hasDeclaredConstructor(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                             String klazz,
                                             String[] param)

getDeclaredConstructor

public static org.zeroturnaround.bundled.javassist.CtConstructor getDeclaredConstructor(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                                                                        String klazz,
                                                                                        String[] param)

Returns:

CtConstructor or null if not found

hasMethod

public static boolean hasMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                String methodName,
                                String methodDesc)

getFirstExistingClass

public static org.zeroturnaround.bundled.javassist.CtClass getFirstExistingClass(org.zeroturnaround.bundled.javassist.ClassPool cp,
                                                                                 String... classNames)

Returns the first class out of the given ones that is found in the classpool or null if none is found.

getFirstExistingField

public static org.zeroturnaround.bundled.javassist.CtField getFirstExistingField(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                                 String... fieldNames)

getFirstExistingMethod

public static org.zeroturnaround.bundled.javassist.CtMethod getFirstExistingMethod(org.zeroturnaround.bundled.javassist.CtMethod first,
                                                                                   org.zeroturnaround.bundled.javassist.ClassPool cp,
                                                                                   org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                                   String methodName,
                                                                                   Class<?>... param)

getFirstExistingMethod

public static org.zeroturnaround.bundled.javassist.CtMethod getFirstExistingMethod(org.zeroturnaround.bundled.javassist.CtMethod first,
                                                                                   org.zeroturnaround.bundled.javassist.ClassPool cp,
                                                                                   org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                                   String methodName,
                                                                                   String... param)

hasDeclaredField

public static boolean hasDeclaredField(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                       String fieldName)

hasMethodOnField

public static boolean hasMethodOnField(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                       String fieldName,
                                       String methodName,
                                       String... paramClasses)

implementsInterface

public static boolean implementsInterface(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                          String ifaceName)
                                   throws org.zeroturnaround.bundled.javassist.NotFoundException

Throws:

org.zeroturnaround.bundled.javassist.NotFoundException

getDeclaredMethod

public static org.zeroturnaround.bundled.javassist.CtMethod getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                              String methodName,
                                                                              String... paramClasses)

Finds a declared method by name and params.

Returns:

CtMethod or null if method or parameter class not found

getDeclaredMethod

public static org.zeroturnaround.bundled.javassist.CtMethod getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                              String methodName)

Finds a declared method by name .

Throws:

org.zeroturnaround.bundled.javassist.CtMethod - or null if method was not found

getDeclaredMethod

public static org.zeroturnaround.bundled.javassist.CtMethod getDeclaredMethod(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                                                              String methodName,
                                                                              Class<?>... paramClasses)

Finds a declared method by name and params.

Returns:

CtMethod or null if method or parameter class not found

isMethodVisible

public static boolean isMethodVisible(org.zeroturnaround.bundled.javassist.CtClass caller,
                                      String name)

Checks if method with given name is visible from caller

isFieldVisible

public static boolean isFieldVisible(org.zeroturnaround.bundled.javassist.CtClass user,
                                     String name)

Checks if field with given name is visible from user

removeFinalModifer

public static void removeFinalModifer(org.zeroturnaround.bundled.javassist.CtClass ctClass,
                                      String field)

addLocalForParameter

public static void addLocalForParameter(org.zeroturnaround.bundled.javassist.CtMethod ctMethod,
                                        int param,
                                        String name)
                                 throws org.zeroturnaround.bundled.javassist.NotFoundException,
                                        org.zeroturnaround.bundled.javassist.CannotCompileException

Initializes a named local var from a param. Type is copied.

Parameters:

param - is 1-based as in javassist $1, $2..

Throws:

org.zeroturnaround.bundled.javassist.NotFoundException

org.zeroturnaround.bundled.javassist.CannotCompileException