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Java library for Azure Service Bus
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
package com.microsoft.azure.servicebus.primitives;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
// To complete futures using a different thread. Otherwise every future is completed on the single reactor thread
// which badly affects perf and a client can potentially kill the thread or lock the thread.
class AsyncUtil {
public static boolean completeFutureAndGetStatus(CompletableFuture future, T result) {
try {
return MessagingFactory.INTERNAL_THREAD_POOL.submit(new CompleteCallable<>(future, result)).get();
} catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
return false;
}
}
public static void completeFuture(CompletableFuture future, T result) {
MessagingFactory.INTERNAL_THREAD_POOL.submit(new CompleteCallable<>(future, result));
}
public static boolean completeFutureExceptionallyAndGetStatus(CompletableFuture future, Throwable exception) {
try {
return MessagingFactory.INTERNAL_THREAD_POOL.submit(new CompleteExceptionallyCallable<>(future, exception)).get();
} catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
return false;
}
}
public static void completeFutureExceptionally(CompletableFuture future, Throwable exception) {
MessagingFactory.INTERNAL_THREAD_POOL.submit(new CompleteExceptionallyCallable<>(future, exception));
}
public static void run(Runnable runnable) {
MessagingFactory.INTERNAL_THREAD_POOL.submit(runnable);
}
private static class CompleteCallable implements Callable {
private CompletableFuture future;
private T result;
CompleteCallable(CompletableFuture future, T result) {
this.future = future;
this.result = result;
}
@Override
public Boolean call() throws Exception {
return this.future.complete(this.result);
}
}
private static class CompleteExceptionallyCallable implements Callable {
private CompletableFuture future;
private Throwable exception;
CompleteExceptionallyCallable(CompletableFuture future, Throwable exception) {
this.future = future;
this.exception = exception;
}
@Override
public Boolean call() throws Exception {
return this.future.completeExceptionally(this.exception);
}
}
}
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