Package javassist

Examples of javassist.CtMethod$ConstParameter


          .getClassLoader()));
      CtClass theClass = classPool
          .makeClass(ClassFabUtils.generateClassName( BeanInterface.class ) );

      theClass.addInterface(classPool.get(BeanInterface.class.getName()));
      CtMethod theMethod = new CtMethod(
          classPool.get("java.lang.String"), "interfaceMethod",
          new CtClass[0], theClass);
      theMethod.setBody("return \"Hello, World!\";");
      theClass.addMethod(theMethod);
      Class clazz = theClass.toClass();
      return ( BeanInterface )clazz.newInstance();
    } catch (Exception e) {
      throw new ApplicationRuntimeException("Cannot construct instance.",
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        ctClass.setSuperclass(pool.get(BasicComponent.class.getName()));

        // Implement method getName()

        CtMethod method = CtNewMethod.make(
                "public String getName() { return \"" + name + "\"; }",
                ctClass);
        ctClass.addMethod(method);

        ctClass.addInterface(pool.get(Named.class.getName()));
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    {
        CtClass ctReturnType = convertClass(ms.getReturnType());
        CtClass[] ctParameters = convertClasses(ms.getParameterTypes());
        CtClass[] ctExceptions = convertClasses(ms.getExceptionTypes());

        CtMethod method = new CtMethod(ctReturnType, ms.getName(), ctParameters, getCtClass());

        try
        {
            method.setModifiers(Modifier.PUBLIC | Modifier.ABSTRACT);
            method.setExceptionTypes(ctExceptions);

            getCtClass().addMethod(method);
        }
        catch (Exception ex)
        {
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        CtClass ctReturnType = convertClass(ms.getReturnType());

        CtClass[] ctParameters = convertClasses(ms.getParameterTypes());
        CtClass[] ctExceptions = convertClasses(ms.getExceptionTypes());

        CtMethod method = new CtMethod(ctReturnType, ms.getName(), ctParameters, getCtClass());

        try
        {
            method.setModifiers(modifiers);
            method.setBody(body);
            method.setExceptionTypes(ctExceptions);

            getCtClass().addMethod(method);
        }
        catch (Exception ex)
        {
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      proxy.addField(mixinField);
      instanceAdvisor = new CtField(instanceAdvisor.getType(), "instanceAdvisor", proxy);
      instanceAdvisor.setModifiers(Modifier.PRIVATE);
      proxy.addField(instanceAdvisor);

      CtMethod writeEx = CtNewMethod.make("   public void writeExternal(java.io.ObjectOutput out)\n" +
                                          "   throws java.io.IOException\n" +
                                          "   {\n" +
                                          "   }", proxy);
      CtMethod readEx = CtNewMethod.make("   public void readExternal(java.io.ObjectInput in)\n" +
                                         "   throws java.io.IOException, ClassNotFoundException\n" +
                                         "   {\n" +
                                         "   }", proxy);
      CtMethod getInstanceAdvisor = CtNewMethod.make("   public org.jboss.aop.InstanceAdvisor _getInstanceAdvisor()\n" +
                                                     "   {\n" +
                                                     "      return instanceAdvisor;\n" +
                                                     "   }", proxy);
      CtMethod setInstanceAdvisor = CtNewMethod.make("   public void _setInstanceAdvisor(org.jboss.aop.InstanceAdvisor newAdvisor)\n" +
                                                     "   {\n" +
                                                     "      instanceAdvisor = (org.jboss.aop.ClassInstanceAdvisor) newAdvisor;\n" +
                                                     "   }", proxy);
      CtMethod dynamicInvoke = CtNewMethod.make("   public org.jboss.aop.joinpoint.InvocationResponse _dynamicInvoke(org.jboss.aop.joinpoint.Invocation invocation)\n" +
                                                "   throws Throwable\n" +
                                                "   {\n" +
                                                "      ((org.jboss.aop.joinpoint.InvocationBase) invocation).setInstanceResolver(instanceAdvisor.getMetaData());\n" +
                                                "      org.jboss.aop.advice.Interceptor[] aspects = instanceAdvisor.getInterceptors();\n" +
                                                "      return new org.jboss.aop.joinpoint.InvocationResponse(invocation.invokeNext(aspects));\n" +
                                                "   }", proxy);

      CtMethod setMixins = CtNewMethod.make("   public void setMixins(org.jboss.aop.proxy.ProxyMixin[] mixins)\n" +
                                            "   {\n" +
                                            "      this.mixins = mixins;\n" +
                                            "   }", proxy);

      CtMethod writeReplace = CtNewMethod.make("   public Object writeReplace() throws java.io.ObjectStreamException\n" +
                                               "   {\n" +
                                               "      return new org.jboss.aop.proxy.MarshalledClassProxy(this.getClass().getSuperclass(), mixins, instanceAdvisor);\n" +
                                               "   }", proxy);


      proxy.addMethod(writeEx);
      proxy.addMethod(readEx);
      proxy.addMethod(getInstanceAdvisor);
      proxy.addMethod(setInstanceAdvisor);
      proxy.addMethod(dynamicInvoke);
      proxy.addMethod(setMixins);
      proxy.addMethod(writeReplace);

      /*
      CtMethod writeEx = template.getDeclaredMethod("writeExternal");
      CtMethod readEx = template.getDeclaredMethod("readExternal");
      CtMethod getInstanceAdvisor = template.getDeclaredMethod("_getInstanceAdvisor");
      CtMethod setInstanceAdvisor = template.getDeclaredMethod("_setInstanceAdvisor");
      CtMethod dynamicInvoke = template.getDeclaredMethod("_dynamicInvoke");
      CtMethod setMixins = template.getDeclaredMethod("setMixins");
      CtMethod writeReplace = template.getDeclaredMethod("writeReplace");




      proxy.addMethod(CtNewMethod.copy(writeEx, proxy, null));
      proxy.addMethod(CtNewMethod.copy(readEx, proxy, null));
      proxy.addMethod(CtNewMethod.copy(getInstanceAdvisor, proxy, null));
      proxy.addMethod(CtNewMethod.copy(setInstanceAdvisor, proxy, null));
      proxy.addMethod(CtNewMethod.copy(dynamicInvoke, proxy, null));
      proxy.addMethod(CtNewMethod.copy(setMixins, proxy, null));
      proxy.addMethod(CtNewMethod.copy(writeReplace, proxy, null));
      */


      proxy.addInterface(pool.get("org.jboss.aop.proxy.ClassProxy"));
      proxy.addInterface(pool.get("java.io.Externalizable"));
      proxy.addInterface(pool.get("org.jboss.aop.instrument.Untransformable"));
      proxy.addInterface(pool.get("org.jboss.aop.proxy.MethodMapped"));

      CtClass map = pool.get("java.util.Map");
      CtField methodMap = new CtField(map, "methodMap", proxy);
      methodMap.setModifiers(Modifier.PRIVATE | Modifier.STATIC);
      proxy.addField(methodMap);
      CtMethod getMethodMap = CtNewMethod.getter("getMethodMap", methodMap);
      getMethodMap.setModifiers(Modifier.PUBLIC);
      proxy.addMethod(getMethodMap);

      HashSet<String> addedInterfaces = new HashSet<String>();
      HashSet<Long> addedMethods = new HashSet<Long>();
      if (mixins != null)
      {
         for (int i = 0; i < mixins.length; i++)
         {
            HashSet<Long> mixinMethods = new HashSet<Long>();
            Class<?>[] mixinf = mixins[i].getInterfaces();
            ClassPool mixPool = AspectManager.instance().findClassPool(mixins[i].getMixin().getClass().getClassLoader());
            CtClass mixClass = mixPool.get(mixins[i].getMixin().getClass().getName());
            for (int j = 0; j < mixinf.length; j++)
            {
               if (addedInterfaces.contains(mixinf[j].getName())) throw new Exception("2 mixins are implementing the same interfaces");
               ClassPool mixIntfPool = AspectManager.instance().findClassPool(mixinf[j].getClassLoader());
               CtClass intfClass = mixIntfPool.get(mixinf[j].getName());
               CtMethod[] methods = intfClass.getMethods();
               for (int m = 0; m < methods.length; m++)
               {
                  if (methods[m].getDeclaringClass().getName().equals("java.lang.Object")) continue;
                  Long hash = new Long(JavassistMethodHashing.methodHash(methods[m]));
                  if (mixinMethods.contains(hash)) continue;
                  if (addedMethods.contains(hash)) throw new Exception("More than one mixin has same method");
                  mixinMethods.add(hash);
                  addedMethods.add(hash);
                  String returnStr = (methods[m].getReturnType().equals(CtClass.voidType)) ? "" : "return ";
                  String code = "{" +
                  "   " + mixClass.getName() + " mixin = (" + mixClass.getName() + ")mixins[" + i + "].getMixin();" +
                  "   " + returnStr + " mixin." + methods[m].getName() + "($$);" +
                  "}";
                  CtMethod newMethod = CtNewMethod.make(methods[m].getReturnType(), methods[m].getName(), methods[m].getParameterTypes(), methods[m].getExceptionTypes(), code, proxy);
                  newMethod.setModifiers(Modifier.PUBLIC);
                  proxy.addMethod(newMethod);
               }

               proxy.addInterface(intfClass);
               addedInterfaces.add(intfClass.getName());
            }
         }
      }

      HashMap<Long, CtMethod> allMethods = JavassistMethodHashing.getMethodMap(superclass);

      for (Map.Entry<Long, CtMethod> entry : allMethods.entrySet())
      {
         CtMethod m = entry.getValue();
         if (!Modifier.isPublic(m.getModifiers()) || Modifier.isStatic(m.getModifiers())) continue;

         Long hash = entry.getKey();
         if (addedMethods.contains(hash)) continue;
         addedMethods.add(hash);
         String aopReturnStr = (m.getReturnType().equals(CtClass.voidType)) ? "" : "return ($r)";
         String args = "null";
         if (m.getParameterTypes().length > 0) args = "$args";
         String code = "{   " +
         "    org.jboss.aop.advice.Interceptor[] aspects = instanceAdvisor.getInterceptors(); " +
         "    org.jboss.aop.MethodInfo mi = new org.jboss.aop.MethodInfo(); " +
         "    mi.setHash(" + hash.longValue() + "L);" +
         "    org.jboss.aop.proxy.ProxyMethodInvocation invocation = new org.jboss.aop.proxy.ProxyMethodInvocation(this, mi, aspects); " +
         "    invocation.setInstanceResolver(instanceAdvisor.getMetaData()); " +
         "    invocation.setArguments(" + args + "); " +
         "    " + aopReturnStr + " invocation.invokeNext(); " +
         "}";
         CtMethod newMethod = CtNewMethod.make(m.getReturnType(), m.getName(), m.getParameterTypes(), m.getExceptionTypes(), code, proxy);
         newMethod.setModifiers(Modifier.PUBLIC);
         proxy.addMethod(newMethod);
      }
      SerialVersionUID.setSerialVersionUID(proxy);
      return proxy;
   }
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         code.append("}");

         String name = advisedClass.getName();
         CtClass ctTarget = clazz.getClassPool().get(name);
        
         CtMethod method = CtNewMethod.make(
               Modifier.PRIVATE,
               CtClass.voidType,
               INITIALISE_LIGHTWEIGHT_INSTANCE_ASPECTS,
               new CtClass[] {ctTarget},//target
               EMPTY_CTCLASS_ARRAY,
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      CtField field = new CtField(aspectClass, setup.getAspectFieldName(), clazz);
      field.setModifiers(Modifier.PRIVATE | Modifier.TRANSIENT);
      clazz.addField(field);
     
      String body = getAspectFieldGetterBody(setup);
      CtMethod method = CtNewMethod.make(
            aspectClass,
            setup.getAspectInitialiserName(),
            new CtClass[0],
            new CtClass[0],
            body,
            clazz);
      method.setModifiers(Modifier.PRIVATE);
      clazz.addMethod(method);
   }
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            String initCFlowXBody =
               "{" +
               "   org.jboss.aop.pointcut.CFlowMatcher matcher = new org.jboss.aop.pointcut.CFlowMatcher();" +
               "   return matcher.matches(" + cflowX.getName() + ", this);" +
               "}";
            CtMethod initCFlowX = CtNewMethod.make(
                  CtClass.booleanType,
                  "getCFlow" + useCFlowIndex,
                  new CtClass[0],
                  new CtClass[0],
                  initCFlowXBody,
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      clazz.addField(forInstance);
   }
  
   private void createJoinPointInvokeMethod(CtClass superClass, CtClass clazz, boolean isVoid, AdviceSetups setups, JoinPointInfo info) throws CannotCompileException, NotFoundException
   {
      CtMethod superInvoke = superClass.getDeclaredMethod(INVOKE_JOINPOINT);
      String code = null;
      try
      {
         code = createJoinpointInvokeBody(
               superClass,
               clazz,
               setups,
               superInvoke.getExceptionTypes(), superInvoke.getParameterTypes(), info);
         CtMethod invoke = CtNewMethod.make(
               superInvoke.getReturnType(),
               superInvoke.getName(),
               superInvoke.getParameterTypes(),
               superInvoke.getExceptionTypes(),
               code,
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   private void createInvokeNextMethod(CtClass jp, boolean isVoid, AdviceSetups setups, JoinPointInfo info) throws NotFoundException, CannotCompileException
   {
      AdviceSetup[] aroundSetups = setups.getByType(AdviceType.AROUND);
      if (aroundSetups == null) return;
     
      CtMethod method = jp.getSuperclass().getSuperclass().getDeclaredMethod("invokeNext");
      CtMethod invokeNext = CtNewMethod.copy(method, jp, null);
     
      String code = createInvokeNextMethodBody(jp, isVoid, aroundSetups, info);
     
      try
      {
         invokeNext.setBody(code);
      }
      catch (CannotCompileException e)
      {
         throw new RuntimeException("Error creating invokeNext method: " + code, e);
      }
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