为摄取附件内部字段定义Elasticsearch映射

Question

我尝试使用Elasticsearch索引构建应用程序。 我有几个＆＃34;内部＆＃34;可以包含二进制数据（主要是PDF）的字段，我正在寻找定义管道和映射的最佳方法，给出以下事实：

• 所有字段和内容可以以多种语言（法语和英语）和多个字段提供

• 我必须能够查询给定语言和/或给定字段的内容。

这就是我到目前为止定义映射的方式：

{
    "WfNewsEvent": {
        "properties": {
            "title": {
                "type": "object",
                "properties": {
                    "en": {
                        "type": "string"
                    },
                    "fr": {
                        "type": "string",
                        "analyzer": "french",
                        "search_analyzer": "french_search"
                    }
                }
            },
            ...
            "extfile": {
                "type": "object",
                "properties": {
                    "title": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "string"
                            },
                            "fr": {
                                "type": "string",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    },
                    "description": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "string"
                            },
                            "fr": {
                                "type": "string",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    },
                    "data": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "attachment"
                            },
                            "fr": {
                                "type": "attachment",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    }
                }
            },
            "gallery": {
                "type": "object",
                "properties": {
                    "title": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "string"
                            },
                            "fr": {
                                "type": "string",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    },
                    "description": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "string"
                            },
                            "fr": {
                                "type": "string",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    },
                    "data": {
                        "type": "object",
                        "properties": {
                            "en": {
                                "type": "attachment"
                            },
                            "fr": {
                                "type": "attachment",
                                "analyzer": "french",
                                "search_analyzer": "french_search"
                            }
                        }
                    }
                }
            }
        }
    }
}

然后我的附件＆＃39;管道定义：

{
  "description" : "Extract attachment information",
  "processors" : [
    {
      "attachment" : {
        "field" : "extfile.data.en",
        "ignore_missing": true
      }
    },
    {
      "attachment" : {
        "field" : "extfile.data.fr",
        "ignore_missing": true
      }
    },
    {
      "attachment" : {
        "field" : "gallery.data.fr",
        "ignore_missing": true
      }
    },
    {
      "attachment" : {
        "field" : "gallery.data.fr",
        "ignore_missing": true
      }
    }
  ]
}

实际上，当我尝试索引文档时，ES会引发一个例外，说明＆＃34;数据＆＃34;不是整数。所以任何帮助都会受到欢迎！

祝你好运， 亨利