我是scala的新手,它使用alpakka-elasticsearch客户端通过弹性搜索执行查询。
单一搜索查询可以通过以下两种内部调用弹性搜索的_search url的方式正常工作:
val writeCustomIndex = ElasticsearchSource
.typed[Book](
indexName = "source",
typeName = "_doc",
query = """{"match_all": {}}"""
)
OR
val readWithSearchParameters = ElasticsearchSource
.typed[TestDoc](
indexName,
Some(typeName),
searchParams = Map(
"query" -> """ {"match_all": {}} """,
"_source" -> """ ["id", "a", "c"] """
)
我要寻找的是对此客户端执行以下多次查询(_msearch)。
url - http://localhost:9200/index1/_msearch?
request :
[
{"query" : {"match_all" : {}}, "from" : 0, "size" : 1},
{"index" : "index2"},
{"query" : {"match_all" : {}}, "from" : 0, "size" : 2}
]
弹性客户来源:https://doc.akka.io/docs/alpakka/current/elasticsearch.html
答案 0 :(得分:0)
根据建议,我尝试了一种方法,其中我合并了两个来源。
希望,这可能会对某人有所帮助!
var elasticRecord: Future[Seq[ElasticRecord]] = ElasticsearchSource
.typed[ElasticRecord](
indexName1,
Some(typeName1),
query1,
settings = ElasticsearchSourceSettings()).map { message =>
message.source
}.merge(ElasticsearchSource
.typed[ElasticRecord](
indexName2,
Some(typeName2),
query1,
settings = ElasticsearchSourceSettings()).map { message =>
message.source
}).runWith(Sink.seq)