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Java MethodInfo類代碼示例

本文整理匯總了Java中javassist.bytecode.MethodInfo類的典型用法代碼示例。如果您正苦於以下問題：Java MethodInfo類的具體用法？Java MethodInfo怎麽用？Java MethodInfo使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。


MethodInfo類屬於javassist.bytecode包，在下文中一共展示了MethodInfo類的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getParamNames

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * 獲取方法的參數名
 * @param clazz  類
 * @param method 方法
 * @return 方法名稱數組
 * @throws NotFoundException .{@link NotFoundException}
 */
public static String[] getParamNames(Class clazz, String method) throws NotFoundException {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(clazz.getName());
    CtMethod cm = cc.getDeclaredMethod(method);
    // 使用javaassist的反射方法獲取方法的參數名
    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr == null) {
        throw new NotFoundException("cannot get LocalVariableAttribute");
    }
    String[] paramNames = new String[cm.getParameterTypes().length];
    int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
    for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
    }
    return paramNames;
}
開發者ID:DreamYa0，項目名稱:zeratul，代碼行數:26，代碼來源:ReflectionUtils.java

示例2: getParamNames

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * get method parameter names
 * @param cls
 * @param method
 * @return
 * @throws Exception
 */
public static String[] getParamNames(Class<?> cls, Method method) throws Exception {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(cls.getName());

    Class<?>[] paramAry = method.getParameterTypes();
    String[] paramTypeNames = new String[paramAry.length];
    for (int i = 0; i < paramAry.length; i++) {
        paramTypeNames[i] = paramAry[i].getName();
    }

    CtMethod cm = cc.getDeclaredMethod(method.getName(), pool.get(paramTypeNames));

    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr == null) {
        throw new Exception("class:" + cls.getName() + ", have no LocalVariableTable, please use javac -g:{vars} to compile the source file");
    }
    String[] paramNames = new String[cm.getParameterTypes().length];
    int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
    for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
    }
    return paramNames;
}
開發者ID:lemonJun，項目名稱:TakinRPC，代碼行數:33，代碼來源:ClassHelper.java

示例3: replaceGenericResponseMethods

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private void replaceGenericResponseMethods(CtClass clazz)
    throws NotFoundException, CannotCompileException, BadBytecode {
  for (CtMethod method : clazz.getMethods()) {
    if (method.getReturnType().subtypeOf(getGenericResponseClass())) {
      MethodInfo methodInfo = method.getMethodInfo();
      CtMethod replacementMethod = CtNewMethod
          .abstractMethod(
              getResponseClass(), method.getName(), method.getParameterTypes(),
              method.getExceptionTypes(), clazz);

      for (Object attributeInfo : methodInfo.getAttributes()) {
        if (attributeInfo instanceof SignatureAttribute) {
          String sig = transformMethodSignature((SignatureAttribute) attributeInfo);
          replacementMethod.getMethodInfo().addAttribute(
              new SignatureAttribute(((SignatureAttribute) attributeInfo).getConstPool(), sig));
        } else {
          replacementMethod.getMethodInfo().addAttribute((AttributeInfo) attributeInfo);
        }
      }
      clazz.removeMethod(method);
      clazz.addMethod(replacementMethod);
    }
  }
}
開發者ID:cerner，項目名稱:beadledom，代碼行數:25，代碼來源:GenericResponseResourceTransformer.java

示例4: addDefaultConstructor

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * Declares a constructor that takes no parameter.
 *
 * @param classfile The class descriptor
 *
 * @throws CannotCompileException Indicates trouble with the underlying Javassist calls
 */
private void addDefaultConstructor(ClassFile classfile) throws CannotCompileException {
	final ConstPool constPool = classfile.getConstPool();
	final String constructorSignature = "()V";
	final MethodInfo constructorMethodInfo = new MethodInfo( constPool, MethodInfo.nameInit, constructorSignature );

	final Bytecode code = new Bytecode( constPool, 0, 1 );
	// aload_0
	code.addAload( 0 );
	// invokespecial
	code.addInvokespecial( BulkAccessor.class.getName(), MethodInfo.nameInit, constructorSignature );
	// return
	code.addOpcode( Opcode.RETURN );

	constructorMethodInfo.setCodeAttribute( code.toCodeAttribute() );
	constructorMethodInfo.setAccessFlags( AccessFlag.PUBLIC );
	classfile.addMethod( constructorMethodInfo );
}
開發者ID:lamsfoundation，項目名稱:lams，代碼行數:25，代碼來源:BulkAccessorFactory.java

示例5: transformInvokevirtualsIntoPutAndGetfields

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private void transformInvokevirtualsIntoPutAndGetfields(ClassFile classfile) throws CannotCompileException, BadBytecode {
	for ( Object o : classfile.getMethods() ) {
		final MethodInfo methodInfo = (MethodInfo) o;
		final String methodName = methodInfo.getName();
		if ( methodName.startsWith( EACH_READ_METHOD_PREFIX )
				|| methodName.startsWith( EACH_WRITE_METHOD_PREFIX )
				|| methodName.equals( GETFIELDHANDLER_METHOD_NAME )
				|| methodName.equals( SETFIELDHANDLER_METHOD_NAME ) ) {
			continue;
		}

		final CodeAttribute codeAttr = methodInfo.getCodeAttribute();
		if ( codeAttr == null ) {
			continue;
		}

		final CodeIterator iter = codeAttr.iterator();
		while ( iter.hasNext() ) {
			int pos = iter.next();
			pos = transformInvokevirtualsIntoGetfields( classfile, iter, pos );
			transformInvokevirtualsIntoPutfields( classfile, iter, pos );
		}
		final StackMapTable smt = MapMaker.make( classPool, methodInfo );
		codeAttr.setAttribute( smt );
	}
}
開發者ID:lamsfoundation，項目名稱:lams，代碼行數:27，代碼來源:FieldTransformer.java

示例6: getParamName

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * 獲取方法參數名
 * @param method
 * @return 
 */
public static String[] getParamName(Method method) throws Exception {
	ClassPool pool = ClassPool.getDefault();
	CtClass ctClass = pool.get(method.getDeclaringClass().getName());
	CtMethod ctMethod = ctClass.getDeclaredMethod(method.getName());
	// 使用javassist的反射方法的參數名
	MethodInfo methodInfo = ctMethod.getMethodInfo();
	CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
	LocalVariableAttribute attr = (LocalVariableAttribute) 
		codeAttribute.getAttribute(LocalVariableAttribute.tag);

	int length = ctMethod.getParameterTypes().length;
	String[] array = new String[length];
	for (int i = 0; i < length; i++) {
		array[i] = attr.variableName(i + 1);
	}
	return array;
}
開發者ID:NymphWeb，項目名稱:nymph，代碼行數:23，代碼來源:Javassists.java

示例7: updateClass

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
public static void updateClass(MethodInfo info, List<String> names) {
	
	// add the names to the class const pool
	ConstPool constPool = info.getConstPool();
	List<Integer> parameterNameIndices = new ArrayList<Integer>();
	for (String name : names) {
		if (name != null) {
			parameterNameIndices.add(constPool.addUtf8Info(name));
		} else {
			parameterNameIndices.add(0);
		}
	}
	
	// add the attribute to the method
	info.addAttribute(new MethodParametersAttribute(constPool, parameterNameIndices));
}
開發者ID:cccssw，項目名稱:enigma-vk，代碼行數:17，代碼來源:MethodParametersAttribute.java

示例8: initMethodParamInfo

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private void initMethodParamInfo(Object controller, String methodName) {
	methodParamInfo = new LinkedHashMap<Class<?>, String>();
	Class<?> clazz = controller.getClass();
	try {
		ClassPool classPool = ClassPool.getDefault();
		classPool.insertClassPath(new ClassClassPath(clazz));
		CtClass ctClass = classPool.get(clazz.getName());
		CtMethod ctMethod = ctClass.getDeclaredMethod(methodName);

		MethodInfo methodInfo = ctMethod.getMethodInfo();
		CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
		LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute
				.getAttribute("LocalVariableTable");

		CtClass[] parameterTypes = ctMethod.getParameterTypes();
		int pos = Modifier.isStatic(ctMethod.getModifiers()) ? 0 : 1;
		for (int i = 0; i < parameterTypes.length; i++)
			methodParamInfo.put(Class.forName(parameterTypes[i].getName()),
					attr.variableName(i + pos));
	} catch (Exception e) {
		throw new RuntimeException(e.getMessage());
	}
}
開發者ID:lihengming，項目名稱:potato-webmvc，代碼行數:24，代碼來源:HandlerMethodArgsBuilder.java

示例9: getMethodArgNames

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * Get method arg names.
 *
 * @param clazz
 * @param methodName
 * @return
 */
public static <T> String[] getMethodArgNames(Class<T> clazz, String methodName) {
    try {
        ClassPool pool = ClassPool.getDefault();
        CtClass cc = pool.get(clazz.getName());

        CtMethod cm = cc.getDeclaredMethod(methodName);

        // 使用javaassist的反射方法獲取方法的參數名
        MethodInfo methodInfo = cm.getMethodInfo();
        CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
        LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
        if (attr == null) {
            throw new RuntimeException("LocalVariableAttribute of method is null! Class " + clazz.getName() + ",method name is " + methodName);
        }
        String[] paramNames = new String[cm.getParameterTypes().length];
        int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
        for (int i = 0; i < paramNames.length; i++)
            paramNames[i] = attr.variableName(i + pos);

        return paramNames;
    } catch (NotFoundException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}
開發者ID:KoperGroup，項目名稱:koper，代碼行數:32，代碼來源:ReflectUtil.java

示例10: getMethodVariableName

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
/**
 * Get method variable names for the provided method.
 * 
 * @param classname String
 * @param methodname String
 * @return the String[] of method variable name.
 */
public static String[] getMethodVariableName(String classname, String methodname) {
  try {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(classname);
    CtMethod cm = cc.getDeclaredMethod(methodname);
    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    String[] paramNames = new String[cm.getParameterTypes().length];
    LocalVariableAttribute attr =
        (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr != null) {
      int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
      for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
      }
      return paramNames;
    }
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
  return null;
}
開發者ID:benson-git，項目名稱:ibole-microservice，代碼行數:30，代碼來源:ClassHelper.java

示例11: scan

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
public Subroutine[] scan(MethodInfo method) throws BadBytecode {
    CodeAttribute code = method.getCodeAttribute();
    CodeIterator iter = code.iterator();

    subroutines = new Subroutine[code.getCodeLength()];
    subTable.clear();
    done.clear();

    scan(0, iter, null);

    ExceptionTable exceptions = code.getExceptionTable();
    for (int i = 0; i < exceptions.size(); i++) {
        int handler = exceptions.handlerPc(i);
        // If an exception is thrown in subroutine, the handler
        // is part of the same subroutine.
        scan(handler, iter, subroutines[exceptions.startPc(i)]);
    }

    return subroutines;
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:21，代碼來源:SubroutineScanner.java

示例12: buildExceptionInfo

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private ExceptionInfo[] buildExceptionInfo(MethodInfo method) {
    ConstPool constPool = method.getConstPool();
    ClassPool classes = clazz.getClassPool();

    ExceptionTable table = method.getCodeAttribute().getExceptionTable();
    ExceptionInfo[] exceptions = new ExceptionInfo[table.size()];
    for (int i = 0; i < table.size(); i++) {
        int index = table.catchType(i);
        Type type;
        try {
            type = index == 0 ? Type.THROWABLE : Type.get(classes.get(constPool.getClassInfo(index)));
        } catch (NotFoundException e) {
            throw new IllegalStateException(e.getMessage());
        }

        exceptions[i] = new ExceptionInfo(table.startPc(i), table.endPc(i), table.handlerPc(i), type);
    }

    return exceptions;
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:21，代碼來源:Analyzer.java

示例13: firstFrame

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private Frame firstFrame(MethodInfo method, int maxLocals, int maxStack) {
    int pos = 0;

    Frame first = new Frame(maxLocals, maxStack);
    if ((method.getAccessFlags() & AccessFlag.STATIC) == 0) {
        first.setLocal(pos++, Type.get(clazz));
    }

    CtClass[] parameters;
    try {
        parameters = Descriptor.getParameterTypes(method.getDescriptor(), clazz.getClassPool());
    } catch (NotFoundException e) {
        throw new RuntimeException(e);
    }

    for (int i = 0; i < parameters.length; i++) {
        Type type = zeroExtend(Type.get(parameters[i]));
        first.setLocal(pos++, type);
        if (type.getSize() == 2)
            first.setLocal(pos++, Type.TOP);
    }

    return first;
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:25，代碼來源:Analyzer.java

示例14: getClassMethods

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
public List<MethodInfo> getClassMethods(String classname, ConstPool cp) {
	ClassPathList list = pathList;
    List<MethodInfo> methods = null;
    while (list != null) {
    	if (!(list.path instanceof DalvikClassPath)) {
    		list = list.next;
    		continue;
    	}
    	
    	methods = ((DalvikClassPath)list.path).getClassMethods(classname, cp);
        
        if (methods == null)
            list = list.next;
        else
            return methods;
    }

    return null;    // not found
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:20，代碼來源:ClassPoolTail.java

示例15: makeBehaviorCache

import javassist.bytecode.MethodInfo; //導入依賴的package包/類
private void makeBehaviorCache(CtMember.Cache cache) {
	List<MethodInfo> list = getClassFile2().getMethods();
	if (null == list) {
    	return;
    }
    int n = list.size();
    for (int i = 0; i < n; ++i) {
        MethodInfo minfo = (MethodInfo)list.get(i);
        if (minfo.isMethod()) {
            CtMethod newMethod = new CtMethod(minfo, this);
            cache.addMethod(newMethod);
        }
        else {
            CtConstructor newCons = new CtConstructor(minfo, this);
            cache.addConstructor(newCons);
        }
    }
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:19，代碼來源:CtClassType.java


注：本文中的javassist.bytecode.MethodInfo類示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。