如何檢查elasticsearch屬性中是否存在一個值？

Question

我有一個系統環境的json對象。如果environment variable does not contain a variable name "JAVA_HOME"和也如果JAVA_HOME's value is not present in PATH variable，我需要列出該過濾器。這在Elasticsearch中可能嗎？下面

是我的過濾器

PUT /eg/.percolator/2 
{ 
    "query": { 
     "filtered": { 
      "query": { 
       "bool": { 
        "must": [ 
         { 
          "match": { 
          "client.name": "Athena" 
          } 
         }, 
         { 
          "match": { 
          "client.environment.variable.@name": "JAVA_HOME" 
          } 
         } 
        ]     
       }    
      } 
     } 
    } 
} 

我的文檔

GET /eg/message/_percolate 
{ 
    "doc": { 
     "client": { 
      "name": "Athena", 
      "environment": { 
       "variable": [ 
        { 
         "@name": "JAVA_HOME", 
         "@value": "/home/vikrant/Linux/Sandra/java" 
        }, 
        { 
         "@name": "PATH", 
         "@value": "/bin:/sbin:/usr/bin:/usr/sbin:/home/vikrant/Linux/FAS611:/home/vikrant/Linux/FAS611/odbc:/home/vikrant/Linux/Sandra/java/bin:/home/vikrant/Linux/Sandra/server/bin:.:/bin:/usr/bin:/sbin:/usr/sbin:/usr/bin/X11:/usr/local/bin:/usr/local/etc:/etc:/usr/etc:.:/databases/ORACLE/bin:/databases/SYBASE/OCS-15_0/bin:/databases/DB2/bin:/usr/odbc/bin" 
        } 
       ] 
      } 
     } 
    } 
} 

Answer 1

您需要nested mapping第一，因爲您的文檔具有嵌套。這是我第一次爲你創建的文檔，使事情的工作映射：

{ 
    "nested_exp": { 
    "properties": { 
     "client": { 
     "type": "nested", 
     "properties": { 
      "environment": { 
      "type": "nested", 
      "properties": { 
       "variable": { 
       "type": "nested", 
       "properties": { 
        "@name": { 
        "type": "string" 
        }, 
        "@value": { 
        "type": "string" 
        } 
       } 
       } 
      } 
      }, 
      "name": { 
      "type": "string" 
      } 
     } 
     } 
    } 
    } 
} 

然後，我改變了你提供的查詢，使其工作如你預期：

{ 
    "query": { 
    "filtered": { 
     "query": { 
     "bool": { 
      "must": [ 
      { 
       "nested": { 
       "path": "client", 
       "query": { 
        "match": { 
        "client.name": "Athena" 
        } 
       } 
       } 
      }, 
      { 
       "nested": { 
       "path": "client.environment.variable", 
       "query": { 
        "match": { 
        "client.environment.variable.@name": "JAVA_HOME" 
        } 
       } 
       } 
      } 
      ] 
     } 
     } 
    } 
    } 
} 

來到你的問題，它有兩個部分。

對於第一部分，您可以使用NOT過濾器和nested匹配過濾器。這樣的事情：

{ 
    "query": { 
    "filtered": { 
     "query": { 
     "bool": { 
      "must": [ 
      { 
       "nested": { 
       "path": "client", 
       "query": { 
        "match": { 
        "client.name": "Athena" 
        } 
       } 
       } 
      }, 
      { 
       "filtered": { 
       "query": { 
        "match_all": {} 
       }, 
       "filter": { 
        "not": { 
        "filter": { 
         "nested": { 
         "path": "client.environment.variable", 
         "query": { 
          "match": { 
          "client.environment.variable.@name": "JAVA_HOME" 
          } 
         } 
         } 
        } 
        } 
       } 
       } 
      } 
      ] 
     } 
     } 
    } 
    } 
} 

我剛剛嘗試在我的本地Elasticsearch服務器上，它的作品就像一個魅力。

第二個似乎很難用Elasticsearch實現，因爲你要查詢的東西就像value of 1 variable should not be present in another variable's value。