Transform Services User guide

Service parameters

To run the service, specify the source object storage and identify the input data set.

REQUIRED: "source"

Note

Identify the transform source object storage, where the input resides. The source object storage details appear in the Model9 agent configuration file.

Required Keywords for "source"

{
"source": {
    "url":"<URL>",
    "api":"<API>",
    "bucket":"<USER_BUCKET>",
    "user":"<USERID>",
    "password":"<PASSWORD>",
  }
}

Optional Keywords for "source"

{
"source": {
    "useS3V4Signatures":"false"|"true"  
  }
}

Keyword	Description	Required	Default
url	The object storage / proxy url	YES	-
api	The api-protocol used by this object storage / proxy	YES	-
bucket	The bucket defined within the object storage / proxy	YES	-
user	The userid provided by the object storage / proxy	YES	-
password	The password provided by the object storage / proxy	YES	-
useS3V4Signatures	Whether to use the V4 protocol of S3. Required for certain object storage providers, such as HCP Cloud Scale and cohesity. Relevant for api “S3” only.	NO	false

OPTIONAL: “target”

Note

Identify the transform target object storage. Values not specified will be taken from “source” parameter.

{
"target": {
    "url":"<URL>",
    "api":"<API>",
    "bucket"<USER-BUCKET>",
    "user":"<USERID>",
    "password":"<PASSWORD>",
    "useS3V4Signatures":"false"|"true"
  }
}

Keyword	Description	Required	Default
url	The object storage / proxy url	NO	Taken from “source”
api	The api-protocol used by this object storage / proxy	NO	Taken from “source”
bucket	The bucket defined within the object storage / proxy	NO	Taken from “source”
user	The userid provided by the object storage / proxy	NO	Taken from “source”
password	The password provided by the object storage / proxy	NO	Taken from “source”
useS3V4Signatures	Whether to use the V4 protocol of S3. Required for certain object storage providers, such as HCP Cloud Scale and cohesity. Relevant for api “S3” only.	NO	false

REQUIRED: “input”

Note

If you specify VSAM keywords for a sequential input data set, the transform will be performed and a warning message will be issued

Required Keywords for "input"

{
"input": {
    "name":"<DSN>",
    "complex":"<group-SYSPLEX>"
    }
}

Optional Keywords for "input"

{
"input": {
    "type":"backup"|"archive"|"import"|"cloudcopy",
    "entry":"0|<N>",
    "prefix":"model9|<USER-PREFIX>",
    "recordBinary":"false|true",
    "recordCharset":"<CHARSET>",
    "vsam":{
        "keyBinary":"false|true",
        "keyCharset":"<CHARSET>"
    }
}

Keyword	Description	Default
name	Name of the original data set	MF data set legal name, case insensitive
complex	The Model9 resource complex name as defined in the agent configuration file.	String representing the complex
type	The type of the input data set, according to the Model9 Cloud Data Manager policy that created it: “backup” - A backup copy (default) “archive” - An archived data set “import” - A data set imported from tape “cloudcopy” - A data set delivered using the Model9 Cloud Copy free utility.	“backup” (case insensitive)
entry	When the type is “backup”, “entry” represents the generation. The default is “0”, meaning the latest backup copy. Entry “1” would be the backup copy that was taken prior to the latest copy, and so on.	“0”
prefix	The environment prefix as defined in the agent configuration file.	“model9”
recordBinary	Whether the record input is binary. Qualifies for all “record” input (PS, PDS, VSAM data)	“false” (case insensitive)
recordCharset	If the record input is not binary, what will be the character set of the input. Qualifies for all “record” input (PS, PDS, VSAM data)	“IBM-1047”
keyBinary	In case the input is VSAM data set, whether the VSAM key is binary. The output is in base64 format	“false” (case insensitive)
keyCharset	In case the input is VSAM data set and the key is not binary, the character set of the VSAM key	“IBM-1047”

OPTIONAL: "output"

Note

The output is the transformed data of the MF data set, accessible as S3 object

Note

When transforming a file with the same name as an existing file in the target, the existing file will be replaced by the newly transformed file.
Note that the service does not delete previously transformed files but rather overwrites files with the same name, so when re-transforming a file using the “split” function, ensure to remove any previously transformed files to avoid having splitted files of different versions.
When splitting a file, wait for the successful completion of the transform function before continuing with the processing, to insure all the parts of a the file were created.
Specifying “text” format for a “binary” input will cause the transform to fail.

{
"output": { 
    "prefix":"model9|<USER-PREFIX>",
    "compression":"none|gzip",
    "format":"JSON|text|CSV",
    "charset":"UTF",
    "endWithNewLine":"false|true",
    "splitBySize":"< nnnnb/m/g>",
    "splitByRecords":"<n>"
  }
}

Keyword	Description	Default
prefix	Prefix to be added to the object name: ”Prefix”/”object name”	“transform”
compression	Should the output be compressed: “gzip”\|”no	“gzip” (case insensitive)
format	The format of the output file: “JSON”\|”Text”\|”CSV”	“JSON” (case insensitive)
charset	If the key input is not binary, this keyword specifies what will be the character set of the output. Currently only “UTF” is supported	“UTF”
endWithNewLine	A newline will be added at the end of the file, before end of file. This is required by some applications.	false
splitBySize	Whether to split the output files to several files by the requested size, for example, “3000b”, "1000m", "1g". The output files will be numbered <file-name>.1, 2, 3 and so on. The keyword is mutually exclusive with splitByRecords The minimum value for this parameter is 1024 bytes, it is not possible to specify a smaller size When specifying a number without a unit, the service will use bytes, for example: `splitBySize":"1024"` The service will split the data set into files the size of 1024 bytes. The function will not split a record in the middle The last part can be smaller than the specified size Specifying the value “0” indicates no split by size will be performed	0 No split by size will be performed
splitByRecords	Whether to split the output files to several files, according to output records. The output files will be numbered <file-name>.1, 2, 3 and so on. The keyword is mutually exclusive with splitBySize The function will not split a record in the middle The last part can include less records than specified Specifying the value “0” indicates no split by records will be performed	0 No split by records will be performed

Service parameters samples

“Hello world”

Transform the latest backup of a plain text data set, charset IBM-1047, converted to UTF and compressed.

{
"input"       : {
  "name"      : "SAMPLE.TEXT",
  "complex"   : "group-PLEX1"
  },
"output"      : {
  "format"    : "text"
  },
"source"      : {
  "url"       : "https://s3.amazonaws.com",
  "api"       : "aws-s3",
  "bucket"    : "prod-bucket",
  "user"      : "sdsdDVDCsxadA43TERVGFBSDSSDff",
  "password"  : "ddferdscsdW4REFEBA33DSffss344gbs4efe7"
  }
}

Transforming an unloaded DB2 table

Transform the latest backup of an unloaded DB2 table, charset IBM-1047, converted to UTF and compressed, located with a specific prefix:

{
"input"         : {
  "name"        : "DB2.UNLOADED.SEQ",
  "complex"     : "group-PLEX1"
  },
"output"        : {
  "format"      : "text",
  },
"source"        : {
  "url"         : "https://s3.amazonaws.com",
  "api"         : "aws-s3",
  "bucket"      : "prod-bucket",
  "user"        : "sdsdDVDCsxadA43TERVGFBSDSSDff",
  "password"    : "ddferdscsdW4REFEBA33DSffss344gbs4efe7"
  },
"output"        :{
  "prefix"      : "DBprodCustomers"
  }
}

Transforming a VSAM file using the defaults

When transforming a vsam file, the defaults are a text key and binary data, transforming to a JSON output file:

{
  "input"       : {
    "name"      : "SAMPLE.VSAM",
    "complex"   : "group-PLEX1"
    },
"source"        : {
  "url"         : "https://s3.amazonaws.com",
  "api"         : "aws-s3",
  "bucket"      : "prod-bucket",
  "user"        : "sdsdDVDCsxadA43TERVGFBSDSSDff",
  "password"    : "ddferdscsdW4REFEBA33DSffss344gbs4efe7"
    }
  }

Transforming a VSAM text file to CSV

Specify a text data, transforming to a CSV output file:

{
  "input"       : {
    "name"      : "SAMPLE.VSAM",
    "complex"   : "group-PLEX1"
    },
  "vsam"        :{
    "keyBinary" :"false|true",
    "keyCharset":"<CHARSET>"
    },
  "output"      : {
    "format"    : "CSV",
  },
  "source"      : {
    "url"       : "https://s3.amazonaws.com",
    "api"       : "aws-s3",
    "bucket"    : "prod-bucket",
    "user"      : "sdsdDVDCsxadA43TERVGFBSDSSDff",
    "password"  : "ddferdscsdW4REFEBA33DSffss344gbs4efe7"
    }
  }

Transforming on Azure Storage using OAuth2

When transforming data on Azure blob storage with OAuth2 use the azureOauth section to specify Azure OAuth arguments as follows:

{
  "input"       : {
    "name"      : "SAMPLE.PS",
    "complex"   : "group-PLEX1"
    },
  "vsam"        :{
    "keyBinary" : "false|true",
    "keyCharset": "<CHARSET>"
    },
  "output"      : {
    "format"    : "CSV",
  },
  "source": {
        "api": "azureblob",
        "url": "https://<azure-storage-account>.blob.core.windows.net",
        "bucket": "<azure-container-name>",
        "user": "<azure-application-uuid>",
        "password": "<azure-application-client-secret>",
        "azureOauth": {
            "oauthEndpoint": "<azure-oauth-endpoint>",
            "storageAccount": "<azure-storage-account>",
            "oauthAudience": "<azure-oauth-audience>",
            "credentialType": "<azure-credential-type>"
        }
    }
}

Table 3. Azure OAuth2 Arguments

Field Name	Description	Required	Default Value
`oauthEndpoint`	The OAuth2 endpoint from which an OAuth2 token will be request. This value will usually take the form of: `https://login.microsoftonline.com/<tenent-id>/oauth2/token`.	`true`	N/A
`storageAccount`	The name of the Azure storage account which contains the Azureblob container.	`true`	N/A
`oauthAudience`	OAuth2 audience	`false`	`https://storage.azure.com`
`credentialType`	OAuth2 cretential type	`false`	`clientCredentialsSecret`

Service response and log

The transform service is invoked as an HTTP request. It returns:

In case of a WARNING or an ERROR - the HTTP response will also contain messages in the Log below.

Note

Informational messages are printed only to service log and not to the HTTP response. The service log can be viewed on the AWS console when executing the service from AWS, or the docker log, when executing the service on-premises.

HTTP status

Code	Description
200	OK
400	Bad user input or unsupported data set
500	Unexpected error

HTTP response

{
  "status"            : “OK|WARNING|ERROR”,
  "outputName"        : “<OUTPUT-NAME>”,
  "inputName"         : ”<DSN>”,
  "outputCompression" : ”none|gzip”,
  "outputSizeInBytes" : ”<SIZE-IN_BYTES>”,
  "outputFormat"      : ”JSON|text|CSV”
}

Log

{
    "log": [                                                                                  
    "<INFO-MESSAGE>",
    "<WARNING-MESSAGE>",
    "<ERROR-MESSAGE>",
  ]
 }

Output keyword	Description
status	OK - all is well, no log records WARNING - minor problem e.g. specifying parameters that do not fit the input data set. The log is returned. ERROR - major problem such e.g. unable to read the input data or problem in communication. The log is returned.
outputName	The object name as appears in the target object storage
inputName	The input data set name
outputCompression	The compression type as selected in the input parameters / default
outputSizeInBytes	The number of bytes on the output object
outputFormat	The format as selected in the input parameters / default

Service response and log samples

Status OK sample

{
    "status"           : "OK",
    "outputName"       : "transform/QA.SMS.MCBK.SG1QNOBK.DSERV.TXT.TMPPS!uuid=a641d670-2d05-41e7-9dd3-7815e1b2d4c4",
    "inputName"        : "QA.SMS.MCBK.SG1QNOBK.DSERV.TXT.TMPPS",
    "outputCompression": "NONE",
    "outputSizeInBytes": 97,
    "outputFormat"     : "JSON"
}

Status WARNING sample

{
    "log"       : [
        "ZM9K001I Transform service started",
        "ZM9K108W Specifying input parameter vsam is ignored for input data set with DSORG PS",
        "ZM9K002I Transform service completed successfully, output is transform/QA.SMS.MCBK.SG1QNOBK.DSERV.TXT.TMPPS!uuid=d779fbf9-da6b-495b-b6b9-de7583905f19"
    ],
    "status"           : "WARNING",
    "outputName"       : "transform/QA.SMS.MCBK.SG1QNOBK.DSERV.TXT.TMPPS!uuid=d779fbf9-da6b-495b-b6b9-de7583905f19",
    "inputName"        : "QA.SMS.MCBK.SG1QNOBK.DSERV.TXT.TMPPS",
    "outputCompression": "NONE",
    "outputSizeInBytes": 97,
    "outputFormat"     : "JSON"
}

Status ERROR sample

{
    "status": "ERROR",
    "log"   : [
        "ZM9K001I Transform service started",
        "ZM9K008E The input was not found: name QA.SMS.MCBK.DSERV.TXT.NON, archive false, entry (0)"
    ]
}

Input format support

Supported formats

SMS-managed data sets
Non-SMS managed data sets
Sequential and extended-sequential data sets with the following RECFM:
- V
- VB
- F
- FB
Non-extended VSAM KSDS data sets

Unsupported formats

RRDS, VRRDS, LINEAR, ESDS
Extended format data sets with compression or encryption
PDS data sets
RECFM not mentioned above (U, FBA…)

Output format support

Supported types

Text
JSON
CSV

DB2 Image Copy Transform Guide

Configuration

Make sure <M9_HOME>/scripts/transform-service.sh has execute permissions. If not, add it by using chmod a+x <M9_HOME>/scripts/transform-service.sh.
Copy M9XFDB2 from Model9's SAMPLIB data set to a PDS data set of your choosing.

Edit M9XFDB2 and replace the placeholders enclosed with angle brackets with the following:

Table 4. Placeholders:

Placeholder Name	Replace with ...
`<M9_SAMP>`	Your Model9 `SAMPLIB` data set.
`<M9_HOME>`	Your Model9 installation directory.
`<DB2_SDSNLOAD>`	Your DB2's SDSNLOAD data set.
`<TABLE_NAME>`	The name of the table to be transformed.
`<SCHEMA_NAME>`	The schema of the table (can be seen under column `CREATOR` in `SYSIBM.SYSTABLES`.)
`<DB2_SUBSYS>`	The name of the DB2 subsystem.
`<XFORM_SVC_URL>`	The endpoint URL of the installed transform service.

Replace the remaining placeholders in the JCL as described in this manual.

Execute and verify results

When done, submit the job and make sure it ends with MAXCC of 0.

Via SDSF, verify that the transform service was in fact called and completed successfully. Successful output would look something like this:

{                                                     
    "status": "OK",
    "outputNames": [
        "transform-output/M9.SHY.DB2.IMGCPY.M9DB.M9SEG4"  
    ],
    "inputName": "M9.SHY.DB2.IMGCPY.M9DB.M9SEG4",
    "outputCompression": "NONE",
    "outputSizeInBytes": 1064, 
    "outputFormat": "CSV"        
}

Supported DB2 Column Types

Table 5. Supported DB2 Column Types for Transformation

DB2 SQL Code	Name
392-3	TIMESTAMP
2448-9	TIMESTAMP WITH TIME ZONE
384-5	DATE
388-9	TIME
452-3	CHAR
448-9, 456-7	VARCHAR
480-1	REAL/FLOAT/DOUBLE
484-5	DECIMAL/DEC/NUMERIC
492-3	BIGINT
496-7	INTEGER/INT
500-1	SMALLINT

Cloud Data Manager