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DefaultAsyncClient.java
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56 lines (51 loc) · 1.77 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 feign.Request.Options;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
@Experimental
public class DefaultAsyncClient<C> implements AsyncClient<C> {
private final Client client;
private final ExecutorService executorService;
public DefaultAsyncClient(Client client, ExecutorService executorService) {
this.client = client;
this.executorService = executorService;
}
@Override
public CompletableFuture<Response> execute(
Request request, Options options, Optional<C> requestContext) {
final CompletableFuture<Response> result = new CompletableFuture<>();
final Future<?> future =
executorService.submit(
() -> {
try {
result.complete(client.execute(request, options));
} catch (final Exception e) {
result.completeExceptionally(e);
}
});
result.whenComplete(
(response, throwable) -> {
if (result.isCancelled()) {
future.cancel(true);
}
});
return result;
}
}