(Glue-2408) Workflows

A workflow is the combination of multiple SNP Glue™ objects and describes the flow of the data from the source (e.g. SAP table) all the way down the target (e.g. SNP Glue™ table).

Create workflows

Using POST /workflow API is possible to mass generate workflows ready to be executed.

Global parameters

Parameter name	Description	Usage	Type

Parameter name	Description	Usage	Type
SourceObjectName	Array with the list of SAP source objects for which to generate the replication objects	Mandatory	String
SourceObjectType	The type of SAP object to read from. Currently supporting ADSO and SAP tables	Mandatory	"table/view" \| ”ADSO”
ExecutionType	According to the type of execution requested, the API will generate the necessary objects	Mandatory	“SD” - standard \| “FA” - FIFO async \| “FS” - FIFO sync
GlueTableSett	Parameters for SNP Glue™ table generation, mandatory for “standard” and “FIFOAsynch” ExecutionType	Optional	JSON object (see below)
ext2Sett	Parameters for Extractors 2.0 generation	Mandatory	JSON object (see below)
asyncExec	Execute generation in a background job (Asynchronous)	Optional	‘’ or ‘X’
skipExisting	Skip generation of existing objects	Optional	‘’ or ‘X’

GlueTableSett: SNP Glue™ table generation parameter object

Parameter name	Description	Usage	Type

Parameter name	Description	Usage	Type
prefix	Object prefix	Mandatory	String
suffix	Object suffix	Optional	String
devclass	Package for object	Mandatory	String
storID	Storage ID	Mandatory	String
meaningFields	Meaningful fieldname	Optional	Boolean
meaningValues	Speaking field values	Optional	Boolean
glRequest	Add SNP Glue™ Request field	Optional	Boolean
glRequestAsKey	Add SNP Glue™ request as a key	Optional	Boolean
CSVFolderName	File storage folder name	Obligatory in case of file storages	String, default “<GLUE_TABNAME>”
CSVDelimiter	File storage – Delimiter type	Obligatory in case of file storages	String
CSVQuotes	File storage – Put values into quotes	Optional	Boolean
CSVEscaping	File storage – Use extended escaping	Optional	Boolean
CSVHeader	File storage – Include table header	Optional	Boolean
CSVOneFile	File storage – One file extraction	Optional	Boolean
CSVCompress	File storage – Compress file	Optional	Boolean
CSVCompressLevel	File storage – Compression level	Optional	Int

ext2Sett: SNP Glue™ Extractor 2.0

Parameter name	Description	Usage	Type

Parameter name	Description	Usage	Type
prefix	Object prefix, must start with Z	Mandatory	String
suffixFetcher	Fetcher suffix	Optional	String, default “_F“
suffixConsumer	Consumer suffix	Optional	String, default “_C”
suffixProcess	Extraction process suffix	Optional	String, default “_P”
devclass	Package for object	Mandatory	String
deltaType	Delta type, with generate endpoint only trigger and full are possible, different modes can be enabled using PATCH process endpoint	Mandatory	“FULL“ \| “TRIGGER“
loadType	The default load type, can be changed at execution time	Mandatory	“F“ \| ”D” \| ”I” \| ”L”
keyFieldsFilter	Add key fields as a selection parameter	Optional	Boolean
noActivation	Do not activate objects	Optional	Boolean
useDeduplication	Use deduplication	Optional	Boolean

All input parameters are case insensitive.

Example of REST API call:

POST	http://servername:portnumber/dvd/glue/api/v3/workflows?sap-client=800

POST	http://servername:portnumber/dvd/glue/api/v3/workflows?sap-client=800

JSON body:

{
    "SourceObjectType": "table/view",
    "SourceObjectName": [
        "SFLIGHT"
    ],
    "GlueTableSett": {
        "prefix": "Z_",
        "devclass": "ZPACKAGE",
        "storID":"AWS_S3",
        "glRequest": "",
        "glRequestAsKey": ""
    },
    "ext2Sett": {
        "prefix": "Z_",
        "devclass": "ZPACKAGE",
        "suffixFetcher": "_F",
        "suffixConsumer": "_C",
        "suffixProcess": "_P",
        "deltaType": "FULL",
        "loadType": "F"
    }
}

Example of the REST API output:

{
    "message": [
        {
            "msgtype": "S",
            "text": "Generating Glue table 1 for Table/View SFLIGHT..."
        },
        {
            "msgtype": "S",
            "text": "Glue table Z_SFLIGHT generated successfully."
        },
        {
            "msgtype": "S",
            "text": "Generating Extractor2.0 1 for Glue table Z_SFLIGHT..."
        },
        {
            "msgtype": "S",
            "text": "Extractor2.0 object Z_SFLIGHT_F generated successfully."
        },
        {
            "msgtype": "S",
            "text": "Extractor2.0 object Z_SFLIGHT_C generated successfully."
        },
        {
            "msgtype": "S",
            "text": "Extractor2.0 object Z_SFLIGHT_P generated successfully."
        }
    ]
}

If the job is scheduled in the background (async generation), the HTTP response code will be set to 200 with information about the generated SAP job
“200 Generation scheduled under Job name - ZDVD_GLUE_OBJ_GEN_MCHOMA”

Functionality is implemented in the SAP class /DVD/GL_EXT2_API_GENERATE.

Error handling

Every error message is raised via code 400. The reason for the error is also provided; however further investigation might be needed on the SAP side.

Delete workflows

Resource DELETE /workflows serve as a mass deletion function for SNP Glue™ objects.

It supports the following input parameters: