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Fix the bug that masterOperation(with task param) is bypassed #4103

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merged 3 commits into from
Aug 3, 2022
Merged

Fix the bug that masterOperation(with task param) is bypassed #4103

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19c5579
Fix the bug that masterOperation(with task param) is bypassed
Aug 3, 2022
d74002f
Add comments to add back abstract keyword on the methods used to be a…
Aug 3, 2022
d4ec950
Change delegation model for method clusterManagerOperation(task...) t…
Aug 3, 2022
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7 changes: 5 additions & 2 deletions .../java/org/opensearch/action/support/clustermanager/TransportClusterManagerNodeAction.java
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Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,10 @@ protected void clusterManagerOperation(Request request, ClusterState state, Acti
masterOperation(request, state, listener);
}

/** @deprecated As of 2.2, because supporting inclusive language, replaced by {@link #clusterManagerOperation(Task, ClusterManagerNodeRequest, ClusterState, ActionListener)} */
/**
* Override this operation if access to the task parameter is needed
* @deprecated As of 2.2, because supporting inclusive language, replaced by {@link #clusterManagerOperation(Task, ClusterManagerNodeRequest, ClusterState, ActionListener)}
*/
@Deprecated
protected void masterOperation(Task task, Request request, ClusterState state, ActionListener<Response> listener) throws Exception {
clusterManagerOperation(task, request, state, listener);
Expand Down Expand Up @@ -218,7 +221,7 @@ protected void doStart(ClusterState clusterState) {
}
});
threadPool.executor(executor)
.execute(ActionRunnable.wrap(delegate, l -> clusterManagerOperation(task, request, clusterState, l)));
.execute(ActionRunnable.wrap(delegate, l -> masterOperation(task, request, clusterState, l)));
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May be we could keep the clusterManagerOperation but change its delegation model:

    protected void clusterManagerOperation(Task task, Request request, ClusterState state, ActionListener<Response> listener)
        throws Exception {
        masterOperation(task, request, state, listener);
    }

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Thank you for the suggestion! It make sense, in this way, the benefit is there will be no references of the master name methods, but the disadvantage is there will be more work in changing the method definitions when removing the deprecated ones.
I will have a try to change in this way.

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Changed in the commit d4ec950, thanks for your brilliant idea! 😄

}
} else {
if (nodes.getClusterManagerNode() == null) {
Expand Down
37 changes: 37 additions & 0 deletions .../org/opensearch/action/support/clustermanager/TransportClusterManagerNodeActionTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -274,6 +274,43 @@ protected void clusterManagerOperation(Task task, Request request, ClusterState
}
}

/* The test is copied from testLocalOperationWithoutBlocks()
to validate the backwards compatibility for the deprecated method masterOperation(with task parameter). */
public void testDeprecatedMasterOperationWithTaskParameterCanBeCalled() throws ExecutionException, InterruptedException {
final boolean clusterManagerOperationFailure = randomBoolean();

Request request = new Request();
PlainActionFuture<Response> listener = new PlainActionFuture<>();

final Exception exception = new Exception();
final Response response = new Response();

setState(clusterService, ClusterStateCreationUtils.state(localNode, localNode, allNodes));

new Action("internal:testAction", transportService, clusterService, threadPool) {
@Override
protected void masterOperation(Task task, Request request, ClusterState state, ActionListener<Response> listener) {
if (clusterManagerOperationFailure) {
listener.onFailure(exception);
} else {
listener.onResponse(response);
}
}
}.execute(request, listener);
assertTrue(listener.isDone());

if (clusterManagerOperationFailure) {
try {
listener.get();
fail("Expected exception but returned proper result");
} catch (ExecutionException ex) {
assertThat(ex.getCause(), equalTo(exception));
}
} else {
assertThat(listener.get(), equalTo(response));
}
}

public void testLocalOperationWithBlocks() throws ExecutionException, InterruptedException {
final boolean retryableBlock = randomBoolean();
final boolean unblockBeforeTimeout = randomBoolean();
Expand Down