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Wrap the managed worker thread pool to disallow shutdown by applicati…
…on/other extensions
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37 changes: 37 additions & 0 deletions
37
core/runtime/src/main/java/io/quarkus/runtime/util/ForwardingScheduledExecutorService.java
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package io.quarkus.runtime.util; | ||
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import java.util.concurrent.Callable; | ||
import java.util.concurrent.ScheduledExecutorService; | ||
import java.util.concurrent.ScheduledFuture; | ||
import java.util.concurrent.TimeUnit; | ||
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/** | ||
* Forwards all method calls to the scheduled executor service returned from the {@link #delegate()} method. Only non-default | ||
* methods | ||
* declared on the {@link ScheduledExecutorService} interface are forwarded. | ||
*/ | ||
public abstract class ForwardingScheduledExecutorService extends ForwardingExecutorService implements ScheduledExecutorService { | ||
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protected abstract ScheduledExecutorService delegate(); | ||
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@Override | ||
public ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) { | ||
return delegate().schedule(command, delay, unit); | ||
} | ||
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@Override | ||
public <V> ScheduledFuture<V> schedule(Callable<V> callable, long delay, TimeUnit unit) { | ||
return delegate().schedule(callable, delay, unit); | ||
} | ||
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@Override | ||
public ScheduledFuture<?> scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit) { | ||
return delegate().scheduleAtFixedRate(command, initialDelay, period, unit); | ||
} | ||
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@Override | ||
public ScheduledFuture<?> scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit) { | ||
return delegate().scheduleWithFixedDelay(command, initialDelay, delay, unit); | ||
} | ||
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} |
50 changes: 50 additions & 0 deletions
50
core/runtime/src/main/java/io/quarkus/runtime/util/NoopShutdownScheduledExecutorService.java
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package io.quarkus.runtime.util; | ||
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import java.util.List; | ||
import java.util.concurrent.ScheduledExecutorService; | ||
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import org.jboss.logging.Logger; | ||
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/** | ||
* Forwards all method calls to the scheduled executor service returned from the {@link #delegate()} method. | ||
* Does not allow shutdown | ||
*/ | ||
public class NoopShutdownScheduledExecutorService extends ForwardingScheduledExecutorService { | ||
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private static final Logger LOG = Logger.getLogger(NoopShutdownScheduledExecutorService.class); | ||
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private final ScheduledExecutorService delegate; | ||
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public NoopShutdownScheduledExecutorService(final ScheduledExecutorService delegate) { | ||
this.delegate = delegate; | ||
} | ||
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@Override | ||
protected ScheduledExecutorService delegate() { | ||
return delegate; | ||
} | ||
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@Override | ||
public boolean isShutdown() { | ||
// managed executors are never shut down from the application's perspective | ||
return false; | ||
} | ||
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@Override | ||
public boolean isTerminated() { | ||
// managed executors are never shut down from the application's perspective | ||
return false; | ||
} | ||
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@Override | ||
public void shutdown() { | ||
LOG.debug("shutdown() not allowed on managed executor service"); | ||
} | ||
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@Override | ||
public List<Runnable> shutdownNow() { | ||
LOG.debug("shutdownNow() not allowed on managed executor service"); | ||
return List.of(); | ||
} | ||
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} |
39 changes: 0 additions & 39 deletions
39
...ertx/runtime/src/main/java/io/quarkus/vertx/core/runtime/NoopShutdownExecutorService.java
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