io.helidon.docs.mp.FaultToleranceSnippets Maven / Gradle / Ivy
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/*
* Copyright (c) 2024 Oracle and/or its affiliates.
*
* 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 io.helidon.docs.mp;
import java.util.concurrent.CompletableFuture;
import org.eclipse.microprofile.faulttolerance.Asynchronous;
import org.eclipse.microprofile.faulttolerance.Bulkhead;
import org.eclipse.microprofile.faulttolerance.CircuitBreaker;
import org.eclipse.microprofile.faulttolerance.Fallback;
import org.eclipse.microprofile.faulttolerance.Retry;
import org.eclipse.microprofile.faulttolerance.Timeout;
@SuppressWarnings("ALL")
class FaultToleranceSnippets {
// stub
static String getMyValue() {
return "";
}
// stub
static CompletableFuture getMyValueAsync() {
return CompletableFuture.completedFuture("");
}
// tag::snippet_1[]
@Retry(maxRetries = 2, delay = 400L)
@Fallback(fallbackMethod = "onFailure")
String retryWithFallback() {
return getMyValue();
}
// end::snippet_1[]
// tag::snippet_2[]
@Timeout(1500)
@CircuitBreaker(requestVolumeThreshold = 10,
failureRatio = .4,
successThreshold = 3)
void timedCircuitBreaker() throws InterruptedException {
//...
}
// end::snippet_2[]
// tag::snippet_3[]
@Asynchronous
@Fallback(fallbackMethod = "onFailure")
@Bulkhead(value = 2, waitingTaskQueue = 10)
CompletableFuture executeWithQueueAndFallback() {
return getMyValueAsync();
}
// end::snippet_3[]
}