[
  {
    "op": "core/column-addition-by-fetching-urls",
    "engineConfig": {
      "facets": [
        {
          "type": "list",
          "name": "id",
          "expression": "isBlank(value)",
          "columnName": "id",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        },
        {
          "type": "list",
          "name": "ddb:transfer",
          "expression": "isBlank(value)",
          "columnName": "ddb:transfer",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": true,
                "l": "true"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        }
      ],
      "mode": "row-based"
    },
    "baseColumnName": "id",
    "urlExpression": "grel:'https://dspace.ub.uni-siegen.de/oai/request?verb=GetRecord&metadataPrefix=mets&identifier=' + value",
    "onError": "set-to-blank",
    "newColumnName": "mets",
    "columnInsertIndex": 1,
    "delay": 0,
    "cacheResponses": true,
    "httpHeadersJson": [
      {
        "name": "authorization",
        "value": ""
      },
      {
        "name": "user-agent",
        "value": "OpenRefine 3.4.1 [437dc4d]"
      },
      {
        "name": "accept",
        "value": "*/*"
      }
    ],
    "description": "Create column mets at index 1 by fetching URLs based on column id using expression grel:'https://dspace.ub.uni-siegen.de/oai/request?verb=GetRecord&metadataPrefix=mets&identifier=' + value"
  },
  {
    "op": "core/text-transform",
    "engineConfig": {
      "facets": [
        {
          "type": "list",
          "name": "id",
          "expression": "isBlank(value)",
          "columnName": "id",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        },
        {
          "type": "list",
          "name": "ddb:transfer",
          "expression": "isBlank(value)",
          "columnName": "ddb:transfer",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": true,
                "l": "true"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        }
      ],
      "mode": "row-based"
    },
    "columnName": "ddb:transfer",
    "expression": "grel:forEach(cells['mets'].value.parseXml().select('FLocat'),v,v.xmlAttr('xlink:href')).join('␞')",
    "onError": "keep-original",
    "repeat": false,
    "repeatCount": 10,
    "description": "Text transform on cells in column ddb:transfer using expression grel:forEach(cells['mets'].value.parseXml().select('FLocat'),v,v.xmlAttr('xlink:href')).join('␞')"
  },
  {
    "op": "core/column-removal",
    "columnName": "mets",
    "description": "Remove column mets"
  }
]