mogui commented on a change in pull request #679:
URL: https://github.com/apache/lucene/pull/679#discussion_r806709538



##########
File path: lucene/monitor/src/java/org/apache/lucene/monitor/QueryIndex.java
##########
@@ -87,8 +81,20 @@
   final Map<IndexReader.CacheKey, QueryTermFilter> termFilters = new 
HashMap<>();
 
   QueryIndex(MonitorConfiguration config, Presearcher presearcher) throws 
IOException {

Review comment:
       HI @romseygeek, thanks for the reply, ok for everything!
    I'll work on that, regarding the interface implementation split, that I 
agree it's more clear, How you suggest to let user select the implementattion? 
Keeping the readonly flag in MonitorConfiguration and instantiating the correct 
on in Monitor, should be enough?

##########
File path: lucene/monitor/src/java/org/apache/lucene/monitor/QueryIndex.java
##########
@@ -87,8 +81,20 @@
   final Map<IndexReader.CacheKey, QueryTermFilter> termFilters = new 
HashMap<>();
 
   QueryIndex(MonitorConfiguration config, Presearcher presearcher) throws 
IOException {

Review comment:
       Yes, it makes sense.

##########
File path: lucene/monitor/src/java/org/apache/lucene/monitor/QueryIndex.java
##########
@@ -87,8 +81,20 @@
   final Map<IndexReader.CacheKey, QueryTermFilter> termFilters = new 
HashMap<>();
 
   QueryIndex(MonitorConfiguration config, Presearcher presearcher) throws 
IOException {

Review comment:
       I'm trying to wrap my head around it and tried few things, but from what 
I understand search methods cannot be isolted from cache population, so without 
a middle abstract class I'll end up with a lot of duplicate code.
   I don't like this Interface -> BaseAbstract and two implemtation hierarchy 
so much. We could skip the interface, but still I don't like so much.
   
   Maybe I'm missing something, but Monitor.search seems very coupled with 
loading in memory all stored queries in `ConcurrentMap<String, QueryCacheEntry> 
queries` so I have to replicate all query cache releated code.
   
   Am I wrong?

##########
File path: lucene/monitor/src/java/org/apache/lucene/monitor/QueryIndex.java
##########
@@ -87,8 +81,20 @@
   final Map<IndexReader.CacheKey, QueryTermFilter> termFilters = new 
HashMap<>();
 
   QueryIndex(MonitorConfiguration config, Presearcher presearcher) throws 
IOException {

Review comment:
       I'm trying to wrap my head around it and tried few things, but from what 
I understand search methods cannot be isolated from cache population, so 
without a middle abstract class I'll end up with a lot of duplicate code.
   I don't like to have  `Interface -> BaseAbstract` and two implemtation 
hierarchy so much. We could skip the interface, but still I don't like it.
   
   Maybe I'm missing something, but Monitor.search seems very coupled with 
loading in memory all stored queries in `ConcurrentMap<String, QueryCacheEntry> 
queries` so I have to replicate all query cache releated code.
   
   Am I wrong?

##########
File path: lucene/monitor/src/java/org/apache/lucene/monitor/QueryIndex.java
##########
@@ -87,8 +81,20 @@
   final Map<IndexReader.CacheKey, QueryTermFilter> termFilters = new 
HashMap<>();
 
   QueryIndex(MonitorConfiguration config, Presearcher presearcher) throws 
IOException {

Review comment:
       Nevermind, I got it or maybe I just think i did :)
   
   Tomorrow I'll update the pull request.




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