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MethodInfo.java
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53 lines (46 loc) · 1.69 KB
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/*
* Copyright © 2012 The Feign Authors (feign@commonhaus.dev)
*
* 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;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.concurrent.CompletableFuture;
@Experimental
public class MethodInfo {
private final Type underlyingReturnType;
private final boolean asyncReturnType;
protected MethodInfo(Type underlyingReturnType, boolean asyncReturnType) {
this.underlyingReturnType = underlyingReturnType;
this.asyncReturnType = asyncReturnType;
}
MethodInfo(Class<?> targetType, Method method) {
final Type type = Types.resolve(targetType, targetType, method.getGenericReturnType());
if (type instanceof ParameterizedType
&& Types.getRawType(type).isAssignableFrom(CompletableFuture.class)) {
this.asyncReturnType = true;
this.underlyingReturnType = ((ParameterizedType) type).getActualTypeArguments()[0];
} else {
this.asyncReturnType = false;
this.underlyingReturnType = type;
}
}
Type underlyingReturnType() {
return underlyingReturnType;
}
boolean isAsyncReturnType() {
return asyncReturnType;
}
}