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Add support for
CompletableFuture
for method return types (#638)
Implements support for `CompletableFuture` on method return types by converting through RxJava `Observable`
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35 changes: 35 additions & 0 deletions
35
hystrix/src/main/java/feign/hystrix/ObservableCompletableFuture.java
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/** | ||
* Copyright 2012-2018 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.hystrix; | ||
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import com.netflix.hystrix.HystrixCommand; | ||
import rx.Subscription; | ||
import java.util.concurrent.CompletableFuture; | ||
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final class ObservableCompletableFuture<T> extends CompletableFuture<T> { | ||
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private final Subscription sub; | ||
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ObservableCompletableFuture(final HystrixCommand<T> command) { | ||
this.sub = command.toObservable().single().subscribe(ObservableCompletableFuture.this::complete, | ||
ObservableCompletableFuture.this::completeExceptionally); | ||
} | ||
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@Override | ||
public boolean cancel(final boolean b) { | ||
sub.unsubscribe(); | ||
return super.cancel(b); | ||
} | ||
} |
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