使用ETL从CSV文件将OPoint数据导入OrientDB 2.2.x

这与我先前的问题有关

（我想出来了）

（仍在寻找有用的答案）

作为对（2）的回应，我正在考虑修改我的nazca geoglyph数据集，以使用WKT版本来与更新的功能保持一致

我的输入CSV文件，

nazca\u lines\u wkt.CSV

如下：

Name,Location
Hummingbird,POINT(-75.148892 -14.692131)
Monkey,POINT(-75.138532 -14.706940)
Condor,POINT(-75.126208 -14.697444)
Spider,POINT(-75.122381 -14.694145)
Spiral,POINT(-75.122746 -14.688277)
Hands,POINT(-75.113881 -14.694459)
Tree,POINT(-75.114520 -14.693898)
Astronaut,POINT(-75.079755 -14.745222)
Dog,POINT(-75.130788 -14.706401)
Wing,POINT(-75.100385 -14.680309)
Parrot,POINT(-75.107498 -14.689463)

我创建了一个空的PLOCAL数据库，

nazca wkt.orientdb

，并定义了一个GeoGlyphWKT顶点类：

CREATE DATABASE PLOCAL:nazca-wkt.orientdb admin admin plocal graph

CREATE CLASS GeoGlyphWKT EXTENDS V

CREATE PROPERTY GeoGlyphWKT.Name      STRING
CREATE PROPERTY GeoGlyphWKT.Location  EMBEDDED OPoint
CREATE PROPERTY GeoGlyphWKT.Tag       EMBEDDEDSET STRING

我有两个用于oetl脚本的.json文件：

nazca\u lines\u wkt.json

{
    "config": {
        "log": "info",
        "fileDirectory": "./",
        "fileName": "nazca_lines_wkt.csv"
    }
}

commongeogioglyphwkt.json

{
    "begin": [ { "let": { "name": "$filePath",  "expression": "$fileDirectory.append($fileName )" } } ],
    "config": { "log": "debug" },
    "source": { "file": { "path": "$filePath" } },
    "extractor":
        {
        "csv": { "ignoreEmptyLines": true,
                 "nullValue": "N/A",
                 "separator": ",",
                 "columnsOnFirstLine": true,
                 "dateFormat": "yyyy-MM-dd"
               }
        },
    "transformers": [ { "vertex": { "class": "GeoGlyphWKT" } } ],
    "loader": {
        "orientdb": {
            "dbURL": "plocal:nazca-wkt.orientdb",
            "dbType": "graph",
            "batchCommit": 1000
        }
    }
}

{
  "source": { "file": { "path": "./nazca_lines_wkt.csv" } },
  "extractor": { "csv": {
    "separator": ",",
    "columns": ["Name:String","Location:String"] } },
  "transformers": [
    { "command": { "command": "INSERT INTO GeoGlyphWKT(Name,Location) values('${input.Name}', St_GeomFromText('${input.Location}'))"} }
  ],
  "loader": {
    "orientdb": {
        "dbURL": "plocal:/home/ivan/OrientDB/db_installati/enterprise/orientdb-enterprise-2.2.13/databases/stack40982509-spatial",
        "dbUser": "admin",
        "dbPassword": "admin",
        "dbType": "graph",
        "batchCommit": 1000
    }
  }
}

我使用以下命令运行oetl：

$ oetl.sh commonGeoGlyphWKT.json nazca_lines_wkt.json

但这会导致以下输出失败：

$ oetl.sh commonGeoGlyphWKT.json nazca_lines_wkt.json
OrientDB etl v.2.2.13 (build 2.2.x@r90d7caa1e4af3fad86594e592c64dc1202558ab1; 2016-11-15 12:04:05+0000) www.orientdb.com
BEGIN ETL PROCESSOR
[file] INFO Reading from file ./nazca_lines_wkt.csv with encoding UTF-8
Started execution with 1 worker threads
Error in Pipeline execution: com.orientechnologies.orient.core.exception.OValidationException: impossible to convert value of field "Location"
    DB name="nazca-wkt.orientdb"
ETL process has problem: java.util.concurrent.ExecutionException: com.orientechnologies.orient.core.exception.OValidationException: impossible to convert value of field "Location"
    DB name="nazca-wkt.orientdb"
END ETL PROCESSOR
+ extracted 9 rows (0 rows/sec) - 9 rows -> loaded 0 vertices (0 vertices/sec) Total time: 16ms [0 warnings, 1 errors]

我肯定我错过了一些愚蠢的事情。。。是否有人能够使用ETL导入包含点、多边形等WKT字符串的CSV文件

---

感谢您的帮助

这对我有用：

commongeogioglyphwkt.json

{
    "begin": [ { "let": { "name": "$filePath",  "expression": "$fileDirectory.append($fileName )" } } ],
    "config": { "log": "debug" },
    "source": { "file": { "path": "$filePath" } },
    "extractor":
        {
        "csv": { "ignoreEmptyLines": true,
                 "nullValue": "N/A",
                 "separator": ",",
                 "columnsOnFirstLine": true,
                 "dateFormat": "yyyy-MM-dd"
               }
        },
    "transformers": [ { "vertex": { "class": "GeoGlyphWKT" } } ],
    "loader": {
        "orientdb": {
            "dbURL": "plocal:nazca-wkt.orientdb",
            "dbType": "graph",
            "batchCommit": 1000
        }
    }
}

{
  "source": { "file": { "path": "./nazca_lines_wkt.csv" } },
  "extractor": { "csv": {
    "separator": ",",
    "columns": ["Name:String","Location:String"] } },
  "transformers": [
    { "command": { "command": "INSERT INTO GeoGlyphWKT(Name,Location) values('${input.Name}', St_GeomFromText('${input.Location}'))"} }
  ],
  "loader": {
    "orientdb": {
        "dbURL": "plocal:/home/ivan/OrientDB/db_installati/enterprise/orientdb-enterprise-2.2.13/databases/stack40982509-spatial",
        "dbUser": "admin",
        "dbPassword": "admin",
        "dbType": "graph",
        "batchCommit": 1000
    }
  }
}

---

nazca\u lines\u wkt.csv

Name,Location
Hummingbird,POINT (-75.148892 -14.692131)
Monkey,POINT (-75.138532 -14.706940)
Condor,POINT(-75.126208 -14.697444)
Spider,POINT(-75.122381 -14.694145)
Spiral,POINT(-75.122746 -14.688277)
Hands,POINT(-75.113881 -14.694459)
Tree,POINT(-75.114520 -14.693898)
Astronaut,POINT(-75.079755 -14.745222)
Dog,POINT(-75.130788 -14.706401)
Wing,POINT(-75.100385 -14.680309)
Parrot,POINT(-75.107498 -14.689463)

---

---

---

这对我有用：

commongeogioglyphwkt.json

{
    "begin": [ { "let": { "name": "$filePath",  "expression": "$fileDirectory.append($fileName )" } } ],
    "config": { "log": "debug" },
    "source": { "file": { "path": "$filePath" } },
    "extractor":
        {
        "csv": { "ignoreEmptyLines": true,
                 "nullValue": "N/A",
                 "separator": ",",
                 "columnsOnFirstLine": true,
                 "dateFormat": "yyyy-MM-dd"
               }
        },
    "transformers": [ { "vertex": { "class": "GeoGlyphWKT" } } ],
    "loader": {
        "orientdb": {
            "dbURL": "plocal:nazca-wkt.orientdb",
            "dbType": "graph",
            "batchCommit": 1000
        }
    }
}

{
  "source": { "file": { "path": "./nazca_lines_wkt.csv" } },
  "extractor": { "csv": {
    "separator": ",",
    "columns": ["Name:String","Location:String"] } },
  "transformers": [
    { "command": { "command": "INSERT INTO GeoGlyphWKT(Name,Location) values('${input.Name}', St_GeomFromText('${input.Location}'))"} }
  ],
  "loader": {
    "orientdb": {
        "dbURL": "plocal:/home/ivan/OrientDB/db_installati/enterprise/orientdb-enterprise-2.2.13/databases/stack40982509-spatial",
        "dbUser": "admin",
        "dbPassword": "admin",
        "dbType": "graph",
        "batchCommit": 1000
    }
  }
}

---

nazca\u lines\u wkt.csv

Name,Location
Hummingbird,POINT (-75.148892 -14.692131)
Monkey,POINT (-75.138532 -14.706940)
Condor,POINT(-75.126208 -14.697444)
Spider,POINT(-75.122381 -14.694145)
Spiral,POINT(-75.122746 -14.688277)
Hands,POINT(-75.113881 -14.694459)
Tree,POINT(-75.114520 -14.693898)
Astronaut,POINT(-75.079755 -14.745222)
Dog,POINT(-75.130788 -14.706401)
Wing,POINT(-75.100385 -14.680309)
Parrot,POINT(-75.107498 -14.689463)

---

---

---

感谢您的报告，作为ETL模块的主要维护者，我从未导入过地理空间数据。让我试试，我会回来回答的谢谢你看！感谢您的报告，作为ETL模块的主要维护者，我从未导入过地理空间数据。让我试试，我会回来回答的谢谢你看！