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Asgeir Nilsen
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Jun 19, 2018
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package no.fint.util; | ||
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import java.util.Collection; | ||
import java.util.Collections; | ||
import java.util.List; | ||
import java.util.concurrent.*; | ||
import java.util.stream.Collectors; | ||
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/** | ||
* Executor which useful for unit testing | ||
*/ | ||
public class CurrentThreadExecutor implements ExecutorService { | ||
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@Override | ||
public void execute(Runnable command) { | ||
command.run(); | ||
} | ||
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@Override | ||
public void shutdown() { | ||
} | ||
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@Override | ||
public List<Runnable> shutdownNow() { | ||
return Collections.emptyList(); | ||
} | ||
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@Override | ||
public boolean isShutdown() { | ||
return false; | ||
} | ||
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@Override | ||
public boolean isTerminated() { | ||
return false; | ||
} | ||
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@Override | ||
public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException { | ||
return false; | ||
} | ||
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@Override | ||
public <T> Future<T> submit(Callable<T> task) { | ||
FutureTask<T> f = new FutureTask<T>(task); | ||
f.run(); | ||
return f; | ||
} | ||
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@Override | ||
public <T> Future<T> submit(Runnable task, T result) { | ||
FutureTask<T> f = new FutureTask<T>(task, result); | ||
f.run(); | ||
return f; | ||
} | ||
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@Override | ||
public Future<?> submit(Runnable task) { | ||
FutureTask<?> f = new FutureTask<Void>(task, null); | ||
f.run(); | ||
return f; | ||
} | ||
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@Override | ||
public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks) throws InterruptedException { | ||
return tasks.stream().map(this::submit).collect(Collectors.toList()); | ||
} | ||
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@Override | ||
public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) throws InterruptedException { | ||
return tasks.stream().map(this::submit).collect(Collectors.toList()); | ||
} | ||
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@Override | ||
public <T> T invokeAny(Collection<? extends Callable<T>> tasks) throws InterruptedException, ExecutionException { | ||
return tasks.stream().map(this::submit).findFirst().get().get(); | ||
} | ||
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@Override | ||
public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { | ||
return tasks.stream().map(this::submit).findFirst().get().get(); | ||
} | ||
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} |