kalix.javasdk.common.ForwardHeadersExtractor Maven / Gradle / Ivy
/*
* Copyright 2021 Lightbend Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kalix.javasdk.common;
import kalix.javasdk.annotations.ForwardHeaders;
import java.util.Set;
public class ForwardHeadersExtractor {
public static Set extractFrom(Class clazz) {
ForwardHeaders forwardHeaders = clazz.getAnnotation(ForwardHeaders.class);
if (forwardHeaders != null) {
return Set.of(forwardHeaders.value());
} else {
return Set.of();
}
}
}