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46 lines (42 loc) · 1.72 KB
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/**
* Copyright 2012-2020 The Feign Authors
*
* 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 feign.reactive;
import feign.InvocationHandlerFactory.MethodHandler;
import feign.Target;
import java.lang.reflect.Method;
import java.util.Map;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.scheduler.Scheduler;
public class ReactorInvocationHandler extends ReactiveInvocationHandler {
private final Scheduler scheduler;
ReactorInvocationHandler(Target<?> target,
Map<Method, MethodHandler> dispatch,
Scheduler scheduler) {
super(target, dispatch);
this.scheduler = scheduler;
}
@Override
protected Publisher invoke(Method method, MethodHandler methodHandler, Object[] arguments) {
Publisher<?> invocation = this.invokeMethod(methodHandler, arguments);
if (Flux.class.isAssignableFrom(method.getReturnType())) {
return Flux.from(invocation).subscribeOn(scheduler);
} else if (Mono.class.isAssignableFrom(method.getReturnType())) {
return Mono.from(invocation).subscribeOn(scheduler);
}
throw new IllegalArgumentException(
"Return type " + method.getReturnType().getName() + " is not supported");
}
}