Custom Collector in ElasticSearch
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We are trying to move from Lucene to ElasticSearch. In our Lucene implementation we have written our own Collector which performs complex visibility rules. In the collect() method of this Collector we check if the document is visible to the user or not. If not visible, we simply ignore that document.
We do queries like: Give me the top 10 documents matching some criteria, and we return them after applying the visibility rules.
I would like to achieve the same in ElasticSearch. When querying that index, I would like to have my custom Collector called.
I have seen sample code to use custom Analyzer, Normalizer, etc.. but nothing about having a custom collector.
Is it possible to use a custom collector in ElasticSearch ? If yes, any pointers on how to do it ?
If not possible, is the following approach the best one ?
- Query receive in our service to retrieve 10 docs matching A
- We request 1000 documents from Eleastic search matching A
- We perform our visibility checks in our service on these 1000 documents
- If we have 10 visible doc, we return them to the caller
- If we do not have enough visible documents, we request the next 1000 documents matching A to ElasticSearch
elasticsearch asked Nov 22 at 14:44
Morfalus
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We are trying to move from Lucene to ElasticSearch. In our Lucene implementation we have written our own Collector which performs complex visibility rules. In the collect() method of this Collector we check if the document is visible to the user or not. If not visible, we simply ignore that document.
We do queries like: Give me the top 10 documents matching some criteria, and we return them after applying the visibility rules.
I would like to achieve the same in ElasticSearch. When querying that index, I would like to have my custom Collector called.
I have seen sample code to use custom Analyzer, Normalizer, etc.. but nothing about having a custom collector.
Is it possible to use a custom collector in ElasticSearch ? If yes, any pointers on how to do it ?
If not possible, is the following approach the best one ?
- Query receive in our service to retrieve 10 docs matching A
- We request 1000 documents from Eleastic search matching A
- We perform our visibility checks in our service on these 1000 documents
- If we have 10 visible doc, we return them to the caller
- If we do not have enough visible documents, we request the next 1000 documents matching A to ElasticSearch
elasticsearch asked Nov 22 at 14:44
Morfalus
12
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
We are trying to move from Lucene to ElasticSearch. In our Lucene implementation we have written our own Collector which performs complex visibility rules. In the collect() method of this Collector we check if the document is visible to the user or not. If not visible, we simply ignore that document.
We do queries like: Give me the top 10 documents matching some criteria, and we return them after applying the visibility rules.
I would like to achieve the same in ElasticSearch. When querying that index, I would like to have my custom Collector called.
I have seen sample code to use custom Analyzer, Normalizer, etc.. but nothing about having a custom collector.
Is it possible to use a custom collector in ElasticSearch ? If yes, any pointers on how to do it ?
If not possible, is the following approach the best one ?
- Query receive in our service to retrieve 10 docs matching A
- We request 1000 documents from Eleastic search matching A
- We perform our visibility checks in our service on these 1000 documents
- If we have 10 visible doc, we return them to the caller
- If we do not have enough visible documents, we request the next 1000 documents matching A to ElasticSearch
elasticsearch asked Nov 22 at 14:44
Morfalus
12
We are trying to move from Lucene to ElasticSearch. In our Lucene implementation we have written our own Collector which performs complex visibility rules. In the collect() method of this Collector we check if the document is visible to the user or not. If not visible, we simply ignore that document.
We do queries like: Give me the top 10 documents matching some criteria, and we return them after applying the visibility rules.
I would like to achieve the same in ElasticSearch. When querying that index, I would like to have my custom Collector called.
I have seen sample code to use custom Analyzer, Normalizer, etc.. but nothing about having a custom collector.
Is it possible to use a custom collector in ElasticSearch ? If yes, any pointers on how to do it ?
If not possible, is the following approach the best one ?
- Query receive in our service to retrieve 10 docs matching A
- We request 1000 documents from Eleastic search matching A
- We perform our visibility checks in our service on these 1000 documents
- If we have 10 visible doc, we return them to the caller
- If we do not have enough visible documents, we request the next 1000 documents matching A to ElasticSearch
elasticsearch elasticsearch asked Nov 22 at 14:44
Morfalus
12
asked Nov 22 at 14:44
Morfalus
12
edited Nov 26 at 8:35
asked Nov 22 at 14:44
Morfalus
12
asked Nov 22 at 14:44
Morfalus
12
asked Nov 22 at 14:44
Morfalus
12
12
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