change to be build with java 8

Author: anjeyy

grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/service/exceptionhandling/GrpcExceptionAspect.java

@@ -20,6 +20,7 @@
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Parameter;
+import java.lang.reflect.Type;
 import java.util.Map.Entry;
 import java.util.Optional;
 
@@ -37,6 +38,10 @@
 /**
  * Exception handling for thrown {@link RuntimeException} inside gRPC service classes, which implements
  * {@link io.grpc.BindableService}.
+ * 
+ * TODO...
+ *
+ * @author Andjelko ([email protected])
  */
 @Slf4j
 @Aspect
@@ -114,11 +119,11 @@ private Object[] determineInstancedParameters(Method mappedMethod) {
     }
 
     private Class<?> convertToClass(Parameter parameter) {
-        return Optional.of(parameter)
-                .map(Parameter::getParameterizedType)
-                .filter(type -> type instanceof Class)
-                .map(type -> (Class<?>) type)
-                .orElseThrow();
+        Type paramType = parameter.getParameterizedType();
+        if (paramType instanceof Class) {
+            return (Class<?>) paramType;
+        }
+        throw new IllegalStateException("Parametertype of method has to be from Class, it was: " + paramType);
     }
 
     private Throwable castToThrowable(Object statusThrowable) {

grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/service/exceptionhandling/GrpcExceptionHandler.java

@@ -23,6 +23,11 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+/**
+ * TODO..
+ * 
+ * @author Andjelko ([email protected])
+ */
 @Documented
 @Target(ElementType.METHOD)
 @Retention(RetentionPolicy.RUNTIME)

grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/service/exceptionhandling/GrpcExceptionHandlerMethodResolver.java

@@ -36,12 +36,19 @@
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
+/**
+ * TODO..
+ * 
+ * @author Andjelko ([email protected])
+ */
 @Slf4j
 @Configuration
 @RequiredArgsConstructor
 @ConditionalOnBean(annotation = GrpcServiceAdvice.class)
 public class GrpcExceptionHandlerMethodResolver implements InitializingBean {
 
+    // TODO remove lombok
+
     private final Map<Class<? extends Throwable>, Method> mappedMethods = new HashMap<>(16);
     private final ApplicationContext applicationContext;
 

grpc-server-spring-boot-autoconfigure/src/main/java/net/devh/boot/grpc/server/service/exceptionhandling/GrpcServiceAdvice.java

@@ -27,6 +27,8 @@
 
 /**
  * Special {@link Component @Component} to declare GrpcException Handling.
+ * 
+ * @author Andjelko ([email protected])
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)