azure - Azure 逻辑应用中的随机列表

Question

是否可以仅使用逻辑应用中 WDL 的函数来随机化数组的元素？

Answer 1

假设您有从 1 到 10 的数组

您创建一个元素随机数组变量

first(variables('Array'))

以及临时值 (tempValue) 和临时数组 (temp)(在后续步骤中使用，因为不允许自引用)

然后你像这样创建until循环

直到条件为

equals(length(variables('Randomized')), length(variables('Array')))

计算数组中的随机索引tempValue(我们将在其中分割数组的随机索引)

rand(0,sub(length('Randomized'),1))

并通过在随机位置插入当前迭代值来组合新数组temp

union(
  take(
    variables('Randomized'),
    variables('tempInteger')
  ),
  array(variables('Array')[add(iterationIndexes('Until'),1)]),
  skip(
    variables('Randomized'),
    variables('tempInteger')
  )
)

在条件语句之后将随机变量设置为临时值

最后一次迭代后，您将获得随机输入表

以及完整的代码示例

{
  "definition": {
    "$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
    "actions": {
      "Init_Randomized_One_Element_Array": {
        "inputs": {
          "variables": [
            {
              "name": "Randomized",
              "type": "Array",
              "value": [
                "@first(variables('Array'))"
              ]
            }
          ]
        },
        "runAfter": {
          "Init_Unrandomized_Array": [
            "Succeeded"
          ]
        },
        "type": "InitializeVariable"
      },
      "Init_Randomized_Temp_Array": {
        "inputs": {
          "variables": [
            {
              "name": "temp",
              "type": "Array"
            }
          ]
        },
        "runAfter": {
          "Init_Randomized_One_Element_Array": [
            "Succeeded"
          ]
        },
        "type": "InitializeVariable"
      },
      "Init_Temp_Calculated_Value": {
        "inputs": {
          "variables": [
            {
              "name": "tempInteger",
              "type": "integer"
            }
          ]
        },
        "runAfter": {
          "Init_Randomized_Temp_Array": [
            "Succeeded"
          ]
        },
        "type": "InitializeVariable"
      },
      "Init_Unrandomized_Array": {
        "inputs": {
          "variables": [
            {
              "name": "Array",
              "type": "Array",
              "value": [
                1,
                2,
                3,
                4,
                5,
                6,
                7,
                8,
                9,
                10
              ]
            }
          ]
        },
        "runAfter": {},
        "type": "InitializeVariable"
      },
      "Until": {
        "actions": {
          "Add_random_element_to_temp_array": {
            "inputs": {
              "name": "temp",
              "value": "@union(\r\n\ttake(\r\n\t\t   variables('Randomized'),\r\n\t\t   variables('tempInteger')\r\n\t),\r\n\tarray(variables('Array')[add(iterationIndexes('Until'),1)]),\r\n\tskip(\r\n\t   variables('Randomized'),\r\n\t   variables('tempInteger')\r\n\t)\r\n)\r\n"
            },
            "runAfter": {
              "Random_Index_to_insert": [
                "Succeeded"
              ]
            },
            "type": "SetVariable"
          },
          "Random_Index_to_insert": {
            "inputs": {
              "name": "tempInteger",
              "value": "@rand(0,sub(length('Randomized'),1))"
            },
            "runAfter": {},
            "type": "SetVariable"
          },
          "Set_randomized_from_temp": {
            "inputs": {
              "name": "Randomized",
              "value": "@variables('temp')"
            },
            "runAfter": {
              "Add_random_element_to_temp_array": [
                "Succeeded"
              ]
            },
            "type": "SetVariable"
          }
        },
        "expression": "@equals(length(variables('Randomized')), length(variables('Array')))",
        "limit": {
          "count": 60,
          "timeout": "PT1H"
        },
        "runAfter": {
          "Init_Temp_Calculated_Value": [
            "Succeeded"
          ]
        },
        "type": "Until"
      }
    },
    "contentVersion": "1.0.0.0",
    "outputs": {},
    "parameters": {},
    "triggers": {
      "manual": {
        "inputs": {
          "schema": {}
        },
        "kind": "Http",
        "type": "Request"
      }
    }
  }
}