Fastの検索文をelasticsearchに置き換えて検索するplugin 検索結果もFastの検索結果に近い形でxmlで出力されます。
全ての機能をカバーしてはいません。 私に必要な機能のみを実装していますwww
Query and Result Protocol Specification http://download.microsoft.com/download/3/4/C/34C47498-E69F-4CEF-9B58-5CEB77E1553D/[MS-FSQR].pdf Fast Query Language Version 2 Protocol http://interoperability.blob.core.windows.net/files/MS-FQL2/[MS-FQL2].pdf
gradle assemble
bin/elasticsearch-plugin install file:///path/to/elasticsearch-fql.zip
GET _fast/{index}/{tyoe}/search?qyerty=and(field:"xxx",id:1)
<SEGMENTS>
<SEGMENT NAME="webcluster">
<RESULTPAGE>
<QUERYTRANSFORMS>
<QUERYTRANSFORM NAME="Original query" ACTION="NOP" CUSTOM="" MESSAGE="Original query" MESSAGEID="1" QUERT="and(field:"xxx",id:1)"/>
<QUERYTRANSFORM NAME="FastQT Kansuji" ACTION="nop" CUSTOM="" MESSAGE="Query was not modified." MESSAGEID="2" INSTANCE="kansuji" QUERY="Trere were no CJK numerals in the query."/>
<QUERYTRANSFORM NAME="FastQT_Lemmatizer" ACTION="nop" CUSTOM="No change to query" MESSAGE="Lemmatization turned off for current query" MESSAGEID="16" INSTANCE="lemmatizer" QUERY=""/>
<QUERYTRANSFORM NAME="Final query" ACTION="NOP" CUSTOM="" MESSAGE="Final query" MESSAGEID="1" QUERY=""/>
</QUERYTRANSFORMS>
<NAVIGATION ENTRIES="0"/>
<CLUSTERS/>
<RESULTSET TOTALHITS="1" FIRSTHIT="1" HITS="1" LASTHIT="1" MAXRANK="0" TIME="342ms">
<HIT NO="1" FCOCOUNT="0" MOREHITS="0" RANK="0" SITEID="0">
<FIELD name="field">xxx</FIELD>
<FIELD name="id">1</FIELD>
</HIT>
</RESULTSET>
<PAGENAVIGATION/>
</RESULTPAGE>
</SEGMENT>
</SEGMENTS>
| Name | Description |
|---|---|
| query | 検索文字列 FQLにて指定 |
| sortby | ソートを条件を指定 単純なfield毎のASC/DESCの指定のみ可能 |
| navigation | filter queryに置き換えます |
| offset | 検索結果の開始位置 default 0 |
| hits | 検索数 default 10 |
FASTのNAVIGATION(Elasticsearchで言う所のAggregation)はスキーマの定義にて行います。 本実装では、Aggregstionの定義を保存し、検索実行時に自動で付与して結果を返します。 index/type毎に一つのNAVIGATIONを指定可能 情報はElasticsearch状の.fastインデックスに格納される。
検索結果に付与するAggregationの条件を設定
PUT /_fast/test/type/_navigation
{ "aggs" : { "fields" : { "terms" : { "field" : "field" , "size":2} } } }
{
"_index" : ".fast",
"_type" : "dGVzdA==",
"_id" : "dHlwZQ==",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 1,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 0,
"_primary_term" : 1
}
GET _fast/{index}/{tyoe}/search?qyerty=field:"xxx"
結果にが追加されている。
<SEGMENTS>
<SEGMENT NAME="webcluster">
<RESULTPAGE>
<QUERYTRANSFORMS>
<QUERYTRANSFORM NAME="Original query" ACTION="NOP" CUSTOM="" MESSAGE="Original query" MESSAGEID="1" QUERT="field:"xxx""/>
<QUERYTRANSFORM NAME="FastQT Kansuji" ACTION="nop" CUSTOM="" MESSAGE="Query was not modified." MESSAGEID="2" INSTANCE="kansuji" QUERY="Trere were no CJK numerals in the query."/>
<QUERYTRANSFORM NAME="FastQT_Lemmatizer" ACTION="nop" CUSTOM="No change to query" MESSAGE="Lemmatization turned off for current query" MESSAGEID="16" INSTANCE="lemmatizer" QUERY=""/>
<QUERYTRANSFORM NAME="Final query" ACTION="NOP" CUSTOM="" MESSAGE="Final query" MESSAGEID="1" QUERY=""/>
</QUERYTRANSFORMS>
<NAVIGATION ENTRIES="1">
<NAVIGATIONENTRY NAME="fields" DISPAYNAME="fields" MODIFIER="fields">
<NAVIGATIONELEMENTS COUNT="1">
<NAVIGATIONELEMENT NAME="xxx" MODIFIER="^"xxx"$" COUNT="2"/>
</NAVIGATIONELEMENTS>
</NAVIGATIONENTRY>
</NAVIGATION>
<CLUSTERS/>
<RESULTSET TOTALHITS="2" FIRSTHIT="1" HITS="2" LASTHIT="2" MAXRANK="0" TIME="275ms">
<HIT NO="1" FCOCOUNT="0" MOREHITS="0" RANK="0" SITEID="0">
<FIELD name="field">xxx</FIELD>
<FIELD name="id">1</FIELD>
</HIT>
<HIT NO="2" FCOCOUNT="0" MOREHITS="0" RANK="0" SITEID="0">
<FIELD name="field">xxx</FIELD>
<FIELD name="id">3</FIELD>
</HIT>
</RESULTSET>
<PAGENAVIGATION/>
</RESULTPAGE>
</SEGMENT>
</SEGMENTS>
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