# Distinct\_date\_histogram facet Java API issue

**URL:** <https://discuss.elastic.co/t/distinct-date-histogram-facet-java-api-issue/9516>\
**Category:** Elasticsearch\
**Created:** [November 1, 2012, 10:47am UTC](https://discuss.elastic.co/t/distinct-date-histogram-facet-java-api-issue/9516 "2012-11-01T10:47:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex\_P\_2](https://avatars.discourse-cdn.com/v4/letter/a/a9adbd/32.png) [@Alex\_P\_2](https://discuss.elastic.co/u/Alex_P_2)\
**Post date:** [November 1, 2012, 10:47am UTC](https://discuss.elastic.co/t/distinct-date-histogram-facet-java-api-issue/9516/1 "2012-11-01T10:47:48Z")

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Hey,

I am having a problem with the Lovely Systems plugin:

> **[crate/elasticsearch-timefacets-plugin](https://github.com/crate/elasticsearch-timefacets-plugin)**
>
> elasticsearch-timefacets-plugin - Elasticsearch Timebased Facets

I have it compiled and installed, and it works fine when accessing it via  
the REST API like so:  
{  
"query": {  
"match\_all" : {}  
},  
"facets" : {  
"visits\_histogram" : {  
"distinct\_date\_histogram" : {  
"field" : "timestamp",  
"value\_field" : "session\_id",  
"interval" : "day"  
}  
}  
}  
}

But if I try the same thing using the Java API:  
elasticSearchService.client  
.prepareSearch(indexes)  
.setSearchType(SearchType.COUNT)  
.setTypes('docHit')  
.setQuery(QueryBuilders.matchAllQuery())  
.setFacets([  
visits\_histogram: [  
distinct\_date\_histogram: [  
field: "timestamp",  
value\_field: "session\_id",  
interval: "day"  
]  
]  
])

I get an error which I really can't figure out, also note that the above  
code works fine for the regular date\_histogram facet:

java.lang.NullPointerException  
at  
org.elasticsearch.search.facet.InternalFacets.readFrom(InternalFacets.java:143)  
at  
org.elasticsearch.search.facet.InternalFacets.readFacets(InternalFacets.java:129)  
at  
org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:88)  
at  
org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:80)  
at  
org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:284)  
at  
org.elasticsearch.action.search.MultiSearchResponse$Item.readFrom(MultiSearchResponse.java:86)  
at  
org.elasticsearch.action.search.MultiSearchResponse$Item.readItem(MultiSearchResponse.java:78)  
at  
org.elasticsearch.action.search.MultiSearchResponse.readFrom(MultiSearchResponse.java:135)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:148)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:75)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:565)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:793)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:458)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:439)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:75)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:565)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:390)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:261)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:35)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:102)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)  
at java.lang.Thread.run(Thread.java:680)  
Thanks!

Alex

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:06am UTC](https://discuss.elastic.co/t/distinct-date-histogram-facet-java-api-issue/9516/2 "2017-07-06T03:06:35Z")

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