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Implement OIDC auth for async (#1131)
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26 changes: 26 additions & 0 deletions
26
driver-core/src/main/com/mongodb/internal/async/AsyncConsumer.java
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/* | ||
* Copyright 2008-present MongoDB, Inc. | ||
* | ||
* 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. | ||
*/ | ||
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package com.mongodb.internal.async; | ||
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/** | ||
* See tests for usage (AsyncFunctionsTest). | ||
* <p> | ||
* This class is not part of the public API and may be removed or changed at any time | ||
*/ | ||
@FunctionalInterface | ||
public interface AsyncConsumer<T> extends AsyncFunction<T, Void> { | ||
} |
33 changes: 33 additions & 0 deletions
33
driver-core/src/main/com/mongodb/internal/async/AsyncFunction.java
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/* | ||
* Copyright 2008-present MongoDB, Inc. | ||
* | ||
* 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. | ||
*/ | ||
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package com.mongodb.internal.async; | ||
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import com.mongodb.lang.Nullable; | ||
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/** | ||
* See tests for usage (AsyncFunctionsTest). | ||
* <p> | ||
* This class is not part of the public API and may be removed or changed at any time | ||
*/ | ||
@FunctionalInterface | ||
public interface AsyncFunction<T, R> { | ||
/** | ||
* This should not be called externally, but should be implemented as a | ||
* lambda. To "finish" an async chain, use one of the "finish" methods. | ||
*/ | ||
void unsafeFinish(@Nullable T value, SingleResultCallback<R> callback); | ||
} |
158 changes: 158 additions & 0 deletions
158
driver-core/src/main/com/mongodb/internal/async/AsyncRunnable.java
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/* | ||
* Copyright 2008-present MongoDB, Inc. | ||
* | ||
* 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. | ||
*/ | ||
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package com.mongodb.internal.async; | ||
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import com.mongodb.internal.async.function.RetryState; | ||
import com.mongodb.internal.async.function.RetryingAsyncCallbackSupplier; | ||
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import java.util.function.Predicate; | ||
import java.util.function.Supplier; | ||
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/** | ||
* See tests for usage (AsyncFunctionsTest). | ||
* <p> | ||
* This class is not part of the public API and may be removed or changed at any time | ||
*/ | ||
@FunctionalInterface | ||
public interface AsyncRunnable extends AsyncSupplier<Void>, AsyncConsumer<Void> { | ||
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static AsyncRunnable beginAsync() { | ||
return (c) -> c.onResult(null, null); | ||
} | ||
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/** | ||
* Must be invoked at end of async chain | ||
* @param runnable the sync code to invoke (under non-exceptional flow) | ||
* prior to the callback | ||
* @param callback the callback provided by the method the chain is used in | ||
*/ | ||
default void thenRunAndFinish(final Runnable runnable, final SingleResultCallback<Void> callback) { | ||
this.finish((r, e) -> { | ||
if (e != null) { | ||
callback.onResult(null, e); | ||
return; | ||
} | ||
try { | ||
runnable.run(); | ||
} catch (Throwable t) { | ||
callback.onResult(null, t); | ||
return; | ||
} | ||
callback.onResult(null, null); | ||
}); | ||
} | ||
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/** | ||
* See {@link #thenRunAndFinish(Runnable, SingleResultCallback)}, but the runnable | ||
* will always be executed, including on the exceptional path. | ||
* @param runnable the runnable | ||
* @param callback the callback | ||
*/ | ||
default void thenAlwaysRunAndFinish(final Runnable runnable, final SingleResultCallback<Void> callback) { | ||
this.finish((r, e) -> { | ||
try { | ||
runnable.run(); | ||
} catch (Throwable t) { | ||
if (e != null) { | ||
t.addSuppressed(e); | ||
} | ||
callback.onResult(null, t); | ||
return; | ||
} | ||
callback.onResult(null, e); | ||
}); | ||
} | ||
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/** | ||
* @param runnable The async runnable to run after this runnable | ||
* @return the composition of this runnable and the runnable, a runnable | ||
*/ | ||
default AsyncRunnable thenRun(final AsyncRunnable runnable) { | ||
return (c) -> { | ||
this.unsafeFinish((r, e) -> { | ||
if (e == null) { | ||
runnable.unsafeFinish(c); | ||
} else { | ||
c.onResult(null, e); | ||
} | ||
}); | ||
}; | ||
} | ||
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/** | ||
* @param condition the condition to check | ||
* @param runnable The async runnable to run after this runnable, | ||
* if and only if the condition is met | ||
* @return the composition of this runnable and the runnable, a runnable | ||
*/ | ||
default AsyncRunnable thenRunIf(final Supplier<Boolean> condition, final AsyncRunnable runnable) { | ||
return (callback) -> { | ||
this.unsafeFinish((r, e) -> { | ||
if (e != null) { | ||
callback.onResult(null, e); | ||
return; | ||
} | ||
boolean matched; | ||
try { | ||
matched = condition.get(); | ||
} catch (Throwable t) { | ||
callback.onResult(null, t); | ||
return; | ||
} | ||
if (matched) { | ||
runnable.unsafeFinish(callback); | ||
} else { | ||
callback.onResult(null, null); | ||
} | ||
}); | ||
}; | ||
} | ||
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/** | ||
* @param supplier The supplier to supply using after this runnable | ||
* @return the composition of this runnable and the supplier, a supplier | ||
* @param <R> The return type of the resulting supplier | ||
*/ | ||
default <R> AsyncSupplier<R> thenSupply(final AsyncSupplier<R> supplier) { | ||
return (c) -> { | ||
this.unsafeFinish((r, e) -> { | ||
if (e == null) { | ||
supplier.unsafeFinish(c); | ||
} else { | ||
c.onResult(null, e); | ||
} | ||
}); | ||
}; | ||
} | ||
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/** | ||
* @param runnable the runnable to loop | ||
* @param shouldRetry condition under which to retry | ||
* @return the composition of this, and the looping branch | ||
* @see RetryingAsyncCallbackSupplier | ||
*/ | ||
default AsyncRunnable thenRunRetryingWhile( | ||
final AsyncRunnable runnable, final Predicate<Throwable> shouldRetry) { | ||
return thenRun(callback -> { | ||
new RetryingAsyncCallbackSupplier<Void>( | ||
new RetryState(), | ||
(rs, lastAttemptFailure) -> shouldRetry.test(lastAttemptFailure), | ||
cb -> runnable.finish(cb) // finish is required here, to handle exceptions | ||
).get(callback); | ||
}); | ||
} | ||
} |
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