JacksonYao287 edited a comment on pull request #2079:
URL: https://github.com/apache/ozone/pull/2079#issuecomment-805789475
> Check `ReconStorageContainerManagerFacade`, in the test, the non ratis id
gen can use below `MockSCMHAManager`
>
> ```
> this.scmhaManager = MockSCMHAManager.getInstance(
> true, new SCMDBTransactionBufferImpl());
> ```
@GlenGeng
the code in MockSCMHAManager is below
```
private MockSCMHAManager(boolean isLeader, DBTransactionBuffer buffer) {
// this.ratisServer will always be not null and it is not depend on
whether 'isLeader' is true
this.ratisServer = new MockRatisServer();
this.isLeader = isLeader;
this.transactionBuffer = buffer;
}
```
so , after the above method is called , the 'ratisServer' in
MockSCMHAManager will not be null;
the code in SequenceIdGenerator is below
```
this.stateManager = new StateManagerHAImpl.Builder()
.setRatisServer(scmhaManager.getRatisServer())// here，the
ratisserver in statemanager will not be true
.setDBTransactionBuffer(scmhaManager.getDBTransactionBuffer())
.setSequenceIdTable(sequenceIdTable)
.build();
```
```
final SCMHAInvocationHandler invocationHandler
**= new SCMHAInvocationHandler(SEQUENCE_ID, impl, ratisServer);**
```
```
public Object invoke(final Object proxy, final Method method,
final Object[] args) throws Throwable {
try {
long startTime = Time.monotonicNow();
final Object result =
**ratisHandler != null** &&
method.isAnnotationPresent(Replicate.class) ?
invokeRatis(method, args) :
invokeLocal(method, args);
LOG.debug("Call: {} took {} ms", method, Time.monotonicNow() -
startTime);
return result;
} catch(InvocationTargetException iEx) {
throw iEx.getCause();
}
}
```
so , we can see that if the 'ratisHandler' is not null and the method is
comment with '@Replicate' , invokeRatis will be called。
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