Package org.ow2.easybeans.asm

Examples of org.ow2.easybeans.asm.MethodVisitor.visitLabel()

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            // start of the catch label which throw a runtime exception
            // } catch (SecurityException e) {
            //   throw new RuntimeException("Cannot...", e);
            // }
            Label firstCatchLabel = new Label();
            mv.visitLabel(firstCatchLabel);
            mv.visitVarInsn(ASTORE, 1);
            mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot find method due to a security exception");
            mv.visitVarInsn(ALOAD, 1);
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            // } catch (NoSuchMethodException e) {
            //   throw new RuntimeException("Cannot...", e);
            // }
            Label secondCatchLabel = new Label();
            mv.visitLabel(secondCatchLabel);
            mv.visitVarInsn(ASTORE, 1);
            mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot find the method");
            mv.visitVarInsn(ALOAD, 1);
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                    "(Ljava/lang/String;Ljava/lang/Throwable;)V");
            mv.visitInsn(ATHROW);


            // if method is not null, return it
            mv.visitLabel(notNullParametersLabel);
            mv.visitFieldInsn(GETSTATIC, this.generatedClassName, "method", JAVA_LANG_REFLECT_METHOD);
            mv.visitInsn(ARETURN);

            // add try/cacth
            mv.visitTryCatchBlock(tryLabel, firstCatchLabel, firstCatchLabel, "java/lang/SecurityException");
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        // or case 1 :
        //        return bean.intercept(this) // bean class
        int index = 0;
        int interceptorIndex = 0;
        for (IJClassInterceptor interceptor : this.allInterceptors) {
            mv.visitLabel(switchLabels[index]);

            Type returnType = Type.getReturnType(interceptor.getJMethod().getDescriptor());

            // interceptor on the bean
            if (interceptor.getClassName().equals(this.beanClassName)) {
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            }
            index++;
        }

        // then, add call to original method, ie bean.businessMethod(i,j,...);
        mv.visitLabel(switchLabels[index++]);
        // get bean object
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, this.generatedClassName, "bean", this.beanClassDesc);

        // arguments of the method
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        // return object or null if the return type is void
        returnsObject(returnType, mv);


        // default case
        mv.visitLabel(defaultCaseLabel);
        mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("Problem in interceptors. Shouldn't go in the default case.");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);
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            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, "java/util/HashMap", "<init>", "()V");
            mv.visitFieldInsn(PUTFIELD, this.generatedClassName, "contextData", "Ljava/util/Map;");

            // else
            mv.visitLabel(elseLabel);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, this.generatedClassName, "contextData", "Ljava/util/Map;");

            // return
            mv.visitInsn(ARETURN);
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            // store field
            mv.visitFieldInsn(PUTFIELD, this.generatedClassName, "parameters", ARRAY_OBJECTS);

            // not null label :
            // return parameters;
            mv.visitLabel(notNullParametersLabel);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, this.generatedClassName, "parameters", ARRAY_OBJECTS);
        } else {
            // throw Exception
            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
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            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot set a null array.");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
            mv.visitLabel(notNull);

            /**
             * if (aobj.length != ...) { throw new
             * IllegalStateException("Invalid size of the given array. The
             * length should be '" + ... + "'."); }
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            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Invalid size of the given array. The length should be '" + this.methodArgsType.length + "'.");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
            mv.visitLabel(sizeOk);

            // this.parameters = parameters
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitFieldInsn(PUTFIELD, this.generatedClassName, "parameters", ARRAY_OBJECTS);
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