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Get Flow¶

Get the information of a specified workflow.

Prerequisite¶

The user must belong to the organization (OU) which the target workflow belongs to.

Request Format¶

GET https://{apigw-address}/batch-processing-service/v2.1/flows

Request Parameters (URI)¶

Name	Location (Path/Query)	Mandatory/Optional	Data Type	Description
flowId	Query	Mandatory	Integer	The workflow ID.
userId	Query	Mandatory	String	The user ID. How to get userId>>
orgId	Query	Mandatory	String	The organization ID which the user belongs to. How to get orgId>>
action	Query	Mandatory	String	Fixed value: get

Response Parameters¶

Name	Data Type	Description
data	Flow Struct	The detailed information of the workflow. For more information, see Flow Struct

Flow Struct¶

Sample¶

{
    "virtual": false,
    "freq": "0 0 0 * * ? *",
    "type": 1,
    "cycle": "D",
    "alertMode": 3,
    "hasEditPri": true,
    "startTime": "2019-07-18",
    "locked": false,
    "flowId": 2430,
    "owner": " owner",
    "creator": " creator",
    "active": 0,
    "updateUser": "yourUpdateUser",
    "updateTime": "2019-07-18 07:50:36.0",
    "flowName": "yu",
    "graph": "{
"queue":"","cycle":"D","desc":"","doAs":"yourDoAs","freq":"0 0 0 * * ? *","visitors":"","tasks":[{"taskName":"hello","taskId":"104443","y":0.0071,"x":0.0096,"nodeId":"t_104443"}],"type":1,"creator":"yourCreator","flows":[],"alertMode":3,"relations":[],"name":"yu","startTime":"2019-07-18","active":0,"parameters":"[]","owners":";yourOwners;"
}",
    "isUserLocked": false,
    "entry": 2,
    "doAs": "yourDoAs",
    "createTime": "2019-07-18 07:49:10.0",
    "visitor": ";yourVisitors;",
    "syncType": 1,
    "parameters": "[]",
    "hasReadPri": true,
    "desc": ""
  }

Parameters¶

Name	Data Type	Description
flowId	Integer	The workflow ID.
flowName	String	The workflow name.
active	Integer	The scheduling status of the workflow. 0: Pause 1: Start
creator	String	The username of the user who created the workflow instance.
createTime	String	The time when the workflow is created.
updateUser	String	The user who updated the workflow.
updateTime	String	The time when the workflow is updated.
freq	String	If CronTab syntax is used when specifying the time to start the workflow in a scheduling cycle, a 7-character CronTab expression is used. For more information about CronTab, see the Cron Expression Explainer
cycle	String	The scheduling cycle. M: Month W: Week D: Day H: Hour mi: Minute
parameters	Map	The global parameters that are configured for the workflow to dynamically adapt to the environment changes (in the format of key=value).
owner	String	The username of the owners of the workflow. The semicolon (;) is used to separate each owner, for example, owners=”userNameA;userNameB”.
visitor	String	The username of the vistors who can access the workflow. The semicolon (;) is used to separate each visitor, for example, visitors=”userNameA;userNameB”.
doAs	String	The big data account of the organization to which the workflow belongs.
alertMode	Integer	The alert mode. 0: Not enabled 1: Email 2: SMS 3: Email and SMS
graph	FlowGraph Struct	The workflow dependency. For more information, see FlowGraph Struct
entry	Integer	The method used for creating the workflow. 0: Portal 1: API 2: eos
type	Integer	The scheduling type of the workflow. 0: Manual 1: Periodic 2: Temporary
syncType	Integer	The sync type of the workflow. 0: File synchronization 1: Data synchronization
desc	String	The workflow description.
startTime	String	The effective date of the workflow.
virtual	Boolean	true = the workflow is a virtual workflow false = the workflow is not a virtual workflow
locked	Boolean	true = the workflow is locked false = the workflow is not locked
hasEditPri	Boolean	true = the user has editing permission for the workflow false = the user does not have editing permission for the workflow
hasReadPri	Boolean	true = the user has reading permission for the workflow false = the user does not have reading permission for the workflow
isUserLocked	Boolean	true = the user is locked false = the user is not locked

FlowGraph Struct¶

Sample¶

{
  "creator":"yourCreator",
  "freq":"0 0 0 * * ? *",
  "alertMode":3,
  "type":1,
  "owners":"yourOwners",
  "visitors":";yourVisitors; ",
  "startTime":"2019-07-25"
  "cycle":"D",
  "doAs":"yourDoAs",
  "flows":[],
  "name":"21",
  "syncType":1,
  "relations":[],
  "parameters":"[]",
  "tasks":
      [{
      "taskName":"tass",
      "task_inst_id":"104890-20190812080700",
      "x":0.002,
      "y":0.002,
      "taskId":104890,
      "nodeId":"t_104890",
      "status":"CANCEL"}],
  "queue":"",
  "desc":"ga"
}

Parameters¶

Name	Data Type	Description
creator	String	The username of the user who created the workflow instance.
freq	String	If CronTab syntax is used when specifying the time to start the workflow in a scheduling cycle, a 7-character CronTab expression is used. For more information about CronTab, see the Cron Expression Explainer
alertMode	Integer	The alert mode. 0: Not enabled 1: Email 2: SMS 3: Email and SMS
type	Integer	The scheduling type of the workflow. 0: Manual 1: Periodic 2: Temporary
owners	String	The username of the owners of the workflow. The semicolon (;) is used to separate each owner, for example, owners=”userNameA;userNameB”.
visitors	String	The username of the vistors who can access the workflow. The semicolon (;) is used to separate each visitor, for example, visitors=”userNameA;userNameB”.
startTime	String	The effective date of the workflow.
cycle	String	The scheduling cycle. M: Month W: Week D: Day H: Hour mi: Minute
doAs	String	The big data account of the organization to which the workflow belongs.
flows	Array of FlowSimpleInfo Structs	The list of workflows that have dependency relations with the workflow. For more information, see FlowSimpleInfo Struct
name	String	The workflow name.
syncType	Integer	The sync type of the workflow. 0: File synchronization 1: Data synchronization
relations	Array of Relation Structs	The list of the relations between tasks in the workflow, with each element representing the upstream and downstream dependency. For more information, see Relation Struct
parameters	Map	The parameters that are configured for the task to dynamically adapt to the environment changes (in the format of key=value)
tasks	Array of TaskSimpleInfo Structs	The list of all task nodes in the workflow, with each element representing a TaskSimpleInfo struct, which contains basic information of a task node. For more information, see TaskSimpleInfo Struct
queue	String	The computing queue.
desc	String	The workflow description.

FlowSimpleInfo Struct¶

Sample¶

{
    "flowId":"2809",
    "flowName":"21",
    "nodeId":"f_2809",
    "isVirtual":false,
    "x":0.0125,
    "y":0.0015
}

Parameters¶

Name	Data Type	Description
flowId	String	The workflow ID.
flowName	String	The workflow name.
nodeId	String	The ID of the node that is part of other workflows.
isVirtual	Boolean	true = the workflow is a virtual workflow false = the workflow is not a virtual workflow
x	Double	The x-axis of the node on the configuration panel of the workflow.
y	Double	The y-axis of the node on the configuration panel of the workflow.

TaskSimpleInfo Struct¶

Sample¶

{
  "taskName":"tass",
  "x":0.0132,
  "y":0.008100000381469727,
  "taskId":"104575",
  "nodeId":"t_104575"
}

Parameters¶

Name	Data Type	Description
taskName	String	The task name.
x	Double	The x-axis of the task on the configuration panel.
y	Double	The y-axis of the task on the configuration panel.
taskId	String	The task ID.
nodeId	String	The node ID. (Note: The node ID is not the same as the task ID, because there are task nodes and workflow nodes that have dependency relations in a workflow.)

Relation Struct¶

Sample¶

{
    "cycleGap": "D0",
    "rerun": true,
    "source": "t_105048",
    "target": "t_104575"
}

Parameters¶

Name	Data Type	Description
cycleGap	String	The scheduling time difference between upstream and downstream tasks, with the format of {cycle}{offset} (cycle is the unit of time different, and offset is value).
source	String	The node ID of the upstream task.
target	String	The node ID of the downstream task.
rerun	Boolean	Effective only for task-level re-running. true = the downstream task will be started when re-running false = the downstream task will not be started when re-running

Error Codes¶

Code	Message	Description
62102	flow not found	Cannot find the flow

For other error codes, see Common Error Codes.

Sample¶

Request Sample¶

url: https://{apigw-address}/batch-processing-service/v2.1/flows?action=get&flowId=2479&userId=yourUserId&orgId=yourOrgId
method: GET

Return Sample¶

{
  "code": 0,
  "msg": "OK",
  "data": {
    "flowId": 2479,
    "flowName": "test0722-1",
    "active": 0,
    "creator": "yourCreator",
    "createTime": "2019-07-22 08:56:35.0",
    "updateUser": "yourUpdateUser",
    "updateTime": "2019-07-22 08:56:58.0",
    "freq": "0 0 0 * * ? *",
    "cycle": "D",
    "parameters": "[{"key":"ouids","value":"oxxxxxxxx"},{"key":"path","value":"/user/db_henglin/test_0722-1/"},{"key":"overwrite","value":"true"}]",
    "owner": "yourOwners",
    "visitor": ";yourVisitors;",
    "doAs": "yourDoAs",
    "alertMode": 1,
    "graph": "{"queue":"","cycle":"D","desc":"","doAs":"yourDoAs","freq":"0 0 0 * * ? *","visitors":"","tasks":[{"taskName":"MDM-Sync","taskId":"104506","y":0.002,"x":0.002,"nodeId":"t_104506"},{"taskName":"MDMHive","taskId":"104507","y":0.009,"x":0.002,"nodeId":"t_104507"}],"type":0,"creator":"yourCreator","flows":[],"alertMode":1,"relations":[{"cycleGap":"D0","rerun":true,"source":"t_104506","target":"t_104507"}],"name":"test0722-1","startTime":"2019-07-22","active":0,"parameters":"[{"key":"ouids","value":"oxxxxxxxxxxx"},{"key":"path","value":"/user/db_henglin/test_0722-1/"},{"key":"overwrite","value":"true"}]","owners":";yourOwners;"}",
    "entry": 0,
    "type": 0,
    "syncType": 1,
    "desc": "",
    "startTime": "2019-07-22",
    "virtual": false,
    "locked": false,
    "hasEditPri": false,
    "hasReadPri": true,
    "isUserLocked": false
  }
}

Java SDK Sample¶

import com.alibaba.fastjson.JSONObject;
import com.envision.apim.poseidon.config.PConfig;
import com.envision.apim.poseidon.core.Poseidon;

public class Request extends PoseidonRequest {
    public void setQueryParam(String key, Object value){
        queryParams().put(key, value);
    }
    public void setHeaderParam(String key, String value){
        headerParams().put(key, value);
    }
    public void setBodyParam(Map<String, Object> bodyPara){
        bodyParams().putAll(bodyPara);
    }
    public void setMethod(String method) {
        this.method = method;
    }
    private String method;
    public String baseUri() {
        return "";
    }
    public String method() {
        return method;
    }
}

public void getFlowTest(){
        //1. Select Application Registration from the left navigation bar of EnOS Console.
        //2. Open the App Detail page to get the AccessKey and SecretKey of the application.

        String accessKey = "yourAppAccessKey";
        String secretKey = "yourAppSecretKey";

        //Create a request and save the required parameters in the map of the Query.
        Request request = new Request();
        request.setQueryParam("flowId",2791);
        request.setQueryParam("userId","yourUserId");
        request.setQueryParam("orgId","yourOrgId");
        request.setMethod("GET");

        try {
            JSONObject response = Poseidon.config(PConfig.init().appKey(accessKey).appSecret(secretKey).debug())
                    .url("https://{apigw-address}/batch-processing-service/v2.1/flows?action=get")
                    .getResponse(request, JSONObject.class);
            System.out.println(response);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }