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fix: annotation field default isnt null

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zaaarf 2024-01-23 11:58:29 +01:00
parent 1e5646a7fd
commit 9fc99e23d8
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1 changed files with 21 additions and 5 deletions
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26
src/main/java/foo/zaaarf/routecompass/RouteCompass.java
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@ -21,6 +21,7 @@ import java.lang.annotation.Annotation;
import java.util.*;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Predicate;
import java.util.stream.Collectors;
/**
@ -142,7 +143,11 @@ public class RouteCompass extends AbstractProcessor {
*/
private String getFullRoute(TypeElement annotationType, Element element) {
try { //TODO support multiple routes
String[] routes = this.getAnnotationFieldsValue(annotationType, element, "path", "value");
String[] routes = this.getAnnotationFieldsValue(
annotationType,
element,
(arr) -> Arrays.deepEquals(arr, new String[] {}),
"path", "value");
return this.getParentOrFallback(element, routes[0], (a, e) -> {
String parent = this.getFullRoute(a, e);
StringBuilder sb = new StringBuilder(parent);
@ -178,7 +183,11 @@ public class RouteCompass extends AbstractProcessor {
*/
private String[] getConsumedType(TypeElement annotationType, Element element) {
try {
String[] res = this.getAnnotationFieldsValue(annotationType, element, "consumes");
String[] res = this.getAnnotationFieldsValue(
annotationType,
element,
(arr) -> Arrays.deepEquals(arr, new String[] {}),
"consumes");
return res == null
? this.getParentOrFallback(element, res, this::getConsumedType)
: res;
@ -195,7 +204,11 @@ public class RouteCompass extends AbstractProcessor {
*/
private String[] getProducedType(TypeElement annotationType, Element element) {
try {
String[] res = this.getAnnotationFieldsValue(annotationType, element, "produces");
String[] res = this.getAnnotationFieldsValue(
annotationType,
element,
(arr) -> Arrays.deepEquals(arr, new String[] {}),
"produces");
return res == null
? this.getParentOrFallback(element, res, this::getProducedType)
: res;
@ -273,13 +286,15 @@ public class RouteCompass extends AbstractProcessor {
* An annotation value.
* @param annotationType the {@link TypeElement} with the annotation we are processing
* @param element the {@link Element} currently being examined
* @param unsetPredicate lambda that returns true if the value is the default one (thus unset)
* @param fieldNames the field name(s) to look for; they are tried in order, and the first found is returned
* @return the field value, cast to the expected type
* @param <T> the expected type of the field
* @throws ReflectiveOperationException when given non-existing or inaccessible field names (hopefully never)
*/
@SuppressWarnings({"OptionalGetWithoutIsPresent", "unchecked"})
private <T> T getAnnotationFieldsValue(TypeElement annotationType, Element element, String ... fieldNames)
private <T> T getAnnotationFieldsValue(TypeElement annotationType, Element element,
Predicate<T> unsetPredicate, String ... fieldNames)
throws ReflectiveOperationException {
Class<? extends Annotation> annClass = this.annotationClasses.stream()
@ -290,7 +305,8 @@ public class RouteCompass extends AbstractProcessor {
T result = null;
for(String fieldName : fieldNames) {
result = (T) annClass.getMethod(fieldName).invoke(element.getAnnotation(annClass));
if(result != null) return result;
if(result != null && !unsetPredicate.test(result))
return result;
}
return result;