ALIYUN::DATAHUB::Topic类型用于创建Topic。

阿里云支持在以下地域创建Topic：
  • 中国（杭州）
  • 中国（上海）
  • 中国（北京）
  • 中国（张家口）
  • 中国（深圳）
  • 新加坡
  • 马来西亚（吉隆坡）
  • 德国（法兰克福）
  • 印度（孟买）

语法

{
  "Type": "ALIYUN::DATAHUB::Topic",
  "Properties": {
    "Comment": String,
    "RecordType": String,
    "ProjectName": String,
    "RecordSchema": String,
    "TopicName": String,
    "ShardCount": Integer,
    "Lifecycle": Integer
  }
}

属性

属性名称 类型 必须 允许更新 描述 约束
Comment String 是 否 描述信息 长度为3~1024个字符。
RecordType String 是 否 类型 取值：
  • TUPLE：结构化数据
  • BLOB：非结构化数据
ProjectName String 是 否 项目名称 无
RecordSchema String 否 否 Schema详情 创建TUPLE类型Topic时指定该参数，创建BLOB类型时不指定。
TopicName String 是 否 Topic名称 长度为3~64个字符，以英文字母开头，可包含数字、英文字母（区分大小写）和下划线（_）。
ShardCount Integer 否 否 初始Shard数目 无
Lifecycle Integer 否 否 数据存储生命周期 无

返回值

Fn::GetAtt

  • ProjectName：项目名称。
  • TopicName：Topic名称。

示例

JSON格式 

{
  "ROSTemplateFormatVersion": "2015-09-01",
  "Resources": {
    "Topic": {
      "Type": "ALIYUN::DATAHUB::Topic",
      "Properties": {
        "Comment": {
          "Ref": "Comment"
        },
        "RecordType": {
          "Ref": "RecordType"
        },
        "ProjectName": {
          "Ref": "ProjectName"
        },
        "RecordSchema": {
          "Ref": "RecordSchema"
        },
        "Lifecycle": {
          "Ref": "Lifecycle"
        },
        "ShardCount": {
          "Ref": "ShardCount"
        },
        "TopicName": {
          "Ref": "TopicName"
        }
      }
    }
  },
  "Parameters": {
    "Comment": {
      "Type": "String",
      "Description": "The comment of topic."
    },
    "RecordType": {
      "Type": "String",
      "Description": "Record type. TUPLE: structured data, BLOB: unstructured data.",
      "AllowedValues": [
        "TUPLE",
        "BLOB"
      ]
    },
    "ProjectName": {
      "MinLength": 3,
      "Type": "String",
      "Description": "The name of the project. Length [3, 32]. Beginning with characters, only characters, numbers and _ are allowed.",
      "MaxLength": 32
    },
    "RecordSchema": {
      "Type": "String",
      "Description": "When creating a TUPLE type topic, you need to specify the schema, but the BLOB type does not pass this parameter."
    },
    "Lifecycle": {
      "Default": 3,
      "Type": "Number",
      "Description": "Data storage life cycle.",
      "MinValue": 1
    },
    "ShardCount": {
      "Default": 1,
      "Type": "Number",
      "Description": "Initial shard number.",
      "MinValue": 1
    },
    "TopicName": {
      "MinLength": 3,
      "Type": "String",
      "Description": "The name of the topic. Length [3, 64]. Beginning with characters, only characters, numbers and _ are allowed.",
      "MaxLength": 64
    }
  },
  "Outputs": {
    "ProjectName": {
      "Description": "Project name",
      "Value": {
        "Fn::GetAtt": [
          "Topic",
          "ProjectName"
        ]
      }
    },
    "TopicName": {
      "Description": "Topic name",
      "Value": {
        "Fn::GetAtt": [
          "Topic",
          "TopicName"
        ]
      }
    }
  }
}

YAML格式 

ROSTemplateFormatVersion: '2015-09-01'
Resources:
  Topic:
    Type: 'ALIYUN::DATAHUB::Topic'
    Properties:
      Comment:
        Ref: Comment
      RecordType:
        Ref: RecordType
      ProjectName:
        Ref: ProjectName
      RecordSchema:
        Ref: RecordSchema
      Lifecycle:
        Ref: Lifecycle
      ShardCount:
        Ref: ShardCount
      TopicName:
        Ref: TopicName
Parameters:
  Comment:
    Type: String
    Description: The comment of topic.
  RecordType:
    Type: String
    Description: 'Record type. TUPLE: structured data, BLOB: unstructured data.'
    AllowedValues:
      - TUPLE
      - BLOB
  ProjectName:
    MinLength: 3
    Type: String
    Description: >-
      The name of the project. Length [3, 32]. Beginning with characters, only
      characters, numbers and _ are allowed.
    MaxLength: 32
  RecordSchema:
    Type: String
    Description: >-
      When creating a TUPLE type topic, you need to specify the schema, but the
      BLOB type does not pass this parameter.
  Lifecycle:
    Default: 3
    Type: Number
    Description: Data storage life cycle.
    MinValue: 1
  ShardCount:
    Default: 1
    Type: Number
    Description: Initial shard number.
    MinValue: 1
  TopicName:
    MinLength: 3
    Type: String
    Description: >-
      The name of the topic. Length [3, 64]. Beginning with characters, only
      characters, numbers and _ are allowed.
    MaxLength: 64
Outputs:
  ProjectName:
    Description: Project name
    Value:
      'Fn::GetAtt':
        - Topic
        - ProjectName
  TopicName:
    Description: Topic name
    Value:
      'Fn::GetAtt':
        - Topic
        - TopicName