expose getLastMessageId method in ConsumerImpl #4911
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sijie
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Aug 10, 2019
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBase.java
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pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiMessageIdImpl.java
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pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiMessageIdImpl.java
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@sijie Thanks. updated following your comments. |
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run java8 tests |
sijie
reviewed
Aug 13, 2019
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| int currentResult = entry.getValue().compareTo(otherMessage); | ||
| if (result == 0) { | ||
| result = currentResult; |
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I think the logic here is problematic. This resets the result back to latest result.
a MultipleMessageId is larger than the other one is when all the partitions' messageId is larger or equals to the messageIds, no?
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- result == 0 && currentResult ==0, then this reset has no effect.
- result ==0 && currentResult !=0, then we keep the non-zero result, this is the result that may be finally returned.
sijie
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Aug 14, 2019
codelipenghui
approved these changes
Aug 16, 2019
pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiMessageIdImpl.java
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wolfstudy
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Nov 20, 2019
Fixes #4909 ### Motivation It would be good to expose method `getLastMessageId` in `ConsumerImpl` to a public method. eg. some times user would like to know the lag messages; or only consume messages before current time. ### Modifications - expose method `getLastMessageId` in consumer api. - add unit test. ### Verifying this change Ut passed (cherry picked from commit 93d95c7)
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Fixes #4909
Motivation
It would be good to expose method
getLastMessageIdinConsumerImplto a public method.eg. some times user would like to know the lag messages; or only consume messages before current time.
Modifications
getLastMessageIdin consumer api.Verifying this change
Ut passed