Oracle® Retail Bulk Data Integration Implementation Guide Release 16.0.023 E89306-01 |
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This chapter discusses the Job Admin Services.
Job Admin provides below RESTful services. These services are secured with SSL and basic authentication.
Batch Service - Ability to start/stop/restart, check status, and so on of jobs. This service is typically used by the BDI Process Flow engine.
Receiver Service - Ability to stream data from one system to another system. This service is used by the Downloader-Transporter job.
System Setting Service - Ability to view, change system settings, and credentials. Refer to Appendix D for details on System Setting REST resources.
Data Service - Ability to get data set information using job information such as job name, execution id or instance id.
The Receiver Service is a RESTful service that provides various endpoints to send data transactionally. Receiver Service is part of Job Admin. It stores data as files and keeps track of metadata in the database. The Receiver Service also supports various merge strategies for merging files at the end. The Receiver Service is used by the Downloader-Transporter job to transmit data from source to destination.Seed data for Receiver Service is generated during design time and loaded during deployment of the Job Admin application.
BDI_RECEIVER_OPTIONS
The Receiver Service options can be configured at interface level.
Table 3-1 Receiver Options
Column | Type | Comments |
---|---|---|
ID |
NUMBER |
Primary key |
INTERFACE_MODULE |
VARCHAR2(255) |
Name of the interface module |
INTERFACE_SHORT_NAME |
VARCHAR2(255) |
Name of the interface |
BASE_FOLDER |
VARCHAR2(255) |
This is the base folder for storing files created by Receiver Service. Receiver Service creates a subfolder ”bdi-data” under base folder. Base folder can be changed from ”Manage Configurations” tab of Job Admin GUI. |
FOLDER_TEMPLATE |
VARCHAR2(255) |
Folder template provides the folder structure for storing files created by Receiver Service.Default value is ”${basefolder}/${TxId}/${TId}/${BId}/”. TxId - Transaction IdTId - Transmission IdBId - Block IdThis value can't be changed. |
MERGE_STRATEGY |
VARCHAR2(255) |
The strategy for merging files. The default value is ”NO_MERGE”. The valid values are NO_MERGE, MERGE_TO_PARTITION_LEVEL, and MERGE_TO_INTERFACE_LEVEL.MERGE_TO_PARTITION_LEVELMerges all files for that partition and creates the merged file in ”${TId}” folder.MERGE_TO_INTERFACE_LEVELMerges all files for interface and creates the merged file in ”${TxId}” folder.MERGE strategies are only supported in cases where the Uploader is not used. |
Endpoints
Ping
This endpoint can be used to check whether the Receiver Service is up or not.
HTTP Method: GET
Path: receiver/ping
Response: alive
Begin Receiver Transaction
This is the first endpoint to be called by the client (for example Downloader-Transporter job) before sending any data. It stores the following metadata in the BDI_RECEIVER_TRANSACTION table and returns the response in JSON format.
Parameter | Description |
---|---|
Transaction Id | Transaction Id (Tx#<Job Instance Id> of the Downloader-Transporter job |
Interface Module | Name of the interface module (for example Diff_Fnd) |
Source System Name | Name of the source system (for example RMS) |
sourceSystemId | ID of the source system (for example URL) |
sourceDataSetId | ID of the data set |
Data Set Type | Type of data set (FULL or PARTIAL) |
Source System Data Set Ready Time | Time when source data set was ready in the outbound tables |
HTTP Method: POST
Path: receiver/beginTransaction/{transactionId}/{interfaceModule}/{sourceSystemName}/{sourceSystemId}/{sourceDataSetId}/{dataSetType}/{sourceSystemDataSetReadyTime}
Sample Response { ”receiverTransactionId”: ”1”, ”transactionId”: ”Tx#1”, ”sourceSystemName”: ”RMS”, ”interfaceModule”: ”Diff_Fnd”, ”sourceSystemId”: ””, ”sourceDataSetId”: ””, ”dataSetType”: ”FULL”, ”sourceSystemDataSetReadyTime”: ””, ”dir”: ””, ”fileName”: ””, ”receiverTransactionStatus”: ””, ”receiverTransactionBeginTime”: ””, ”receiverTransactionEndTime”: ”” }
Begin Receiver Transmission
This end point needs to be called by client (for example Downloader-Transporter job) before sending any data for a partition. It stores the following metadata in BDI_RECEIVER_TRANSMISSION table and returns response in JSON format.
Parameter | Description |
---|---|
TransmissionId | Generated for each partition |
InterfaceModule) | Name of the interface module (for example Diff_Fnd |
InterfaceShortName) | Name of the interface (for example Diff |
partitionName | Partition number |
partitionBeginSeqNum | Begin sequence number in the partition |
partitionEndSeqNum | End sequence number in the partition |
beginBlockNumber | Begin block number |
HTTP Method: POST
Path: receiver/beginTransmission/{transactionId}/{transmissionId}/{sourceSystemName}/{interfaceMod-ule}/{interfaceShortName}/{partitionName}/{partitionBeginSeqNum}/{partitionEndSeqNum}/{beginBlockNumber}
Sample Response: { ”transmissionId”: ”1”, ”interfaceModule”: ”Diff_Fnd”, ”interfaceShortName”: ”Diff”, ”sourceSystemPartitionName”: ”1”, ”sourceSystemPartitionBeginSequenceNumber”: ”1”, ”sourceSystemPartitionEndSequenceNumber”: ”100”, ”beginBlockNumber”: ”1”, ”endBlockNumber”: ””, ”dir”: ””, ”fileName”: ””, ”receiverTransmissionStatus”: ”” }
Update Data Block
Clients use this endpoint to send data. This endpoint is typically called by the client multiple times until there is no more data. It creates a csv file with the data it received at the below location.
${BASE_FOLDER}/bdi-data/${TxId}/${TId}/${BId}
BASE_FOLDER - Obtained from the BDI_RECEIVER_OPTIONS table
TxId - Transaction Id of the remote Downloader-Transporter job
TId - Transmission Id associated with the transaction id
BId - Block Id associated with transmission id
It also stores the following metadata in the RECEIVER_TRANSMISSION_BLOCK table.
Parameter | Description |
---|---|
BlockNumber | Number of the block |
ItemCountInBlock | Number of items in the block |
Dir | Directory where file is created |
FileName | Name of the file |
ReceiverBlockStatus | Status of the block |
CreateTime | Time when the block is created |
HTTP Method: POST
Path: receiver/uploadDataBlock/{transactionId}/{transmissionId}/{sourceSystemName}/{interfaceModule}/{interfaceShortName}/{blockNumber}/{itemCountInBlock}
Sample Response { ”blockId”: ”1”, ”transmissionId”: ”1”, ”blockNumber”: ”1”, ”blockItemCount”: ”100”, ”dir”: ””, ”fileName”: ””, ”receiverBlockStatus”: ””, ”createTime”: ”” }
End Transmission
This end point ends transmission for a partition. It updates ”endBlockNumber” and ”receiverTransmisionStatus” in the RECEIVER_TRANSMISSION table.
HTTP Method: POST
Path: receiver/endTransmission/{transmissionId}/{sourceSystemName}/{interfaceModule}/{interfaceShortName}/{numBlocks}
Sample Response { ”transmissionId”: ”1”, ”interfaceModule”: ”Diff_Fnd”, ”interfaceShortName”: ”Diff”, ”sourceSystemPartitionName”: ”1”, ”sourceSystemPartitionBeginSequenceNumber”: ”1”, ”sourceSystemPartitionEndSequenceNumber”: ”100”, ”beginBlockNumber”: ”1”, ”endBlockNumber”: ””, ”dir”: ””, ”fileName”: ””, ”receiverTransmissionStatus”: ”” }
End Transaction
This end point ends the transaction and called once by the client. It updates ”receiverTransactionStatus” and ”receiverTranasctionEndTime” in the RECEIVER_TRANSACTION table. If ”mergeStrategy” is set to ”MERGE_TO_PARTITION_LEVEL” or ”MERGE_TO_INTERFACE_LEVEL”, then it merges the files and creates the merged file(s) at the appropriate directory. It creates an entry in the BDI_UPLDER_IFACE_MOD_DATA_CTL table so that Uploader job can pick up the data.
HTTP Method: POST
Path: receiver/endTransaction/{transactionId}/{sourceSystemName}/{interfaceModule}
Sample Response { ”receiverTransactionId”: ”1”, ”transactionId”: ”Tx#1”, ”sourceSystemName”: ”RMS”, ”interfaceModule”: ”Diff_Fnd”, ”sourceSystemId”: ””, ”dataSetType”: ”FULL”, ”sourceSystemDataSetReadyTime”: ””, ”dir”: ””, ”fileName”: ””, ”receiverTransactionStatus”: ””, ”receiverTransactionBeginTime”: ””, ”receiverTransactionEndTime”: ”” }
Uploader Interface Module Data Control Table
The BDI_UPLDER_IFACE_MOD_DATA_CTL table acts as a handshake between the downloader and uploader jobs. When the downloader-transporter job calls endTransaction on Receiver Service, the Receiver Service creates an entry in this table if it successfully received data and created files.
An entry in this table indicates to the uploader job that a data set is ready to be uploaded.
BDI_UPLDER_IFACE_MOD_DATA_CTL
Table 3-2 Module Data Control
Column | Type | Comments |
---|---|---|
UPLOADER_IFACE_MOD_DATA_CTLID |
NUMBER |
Primary key |
INTERFACE_MODULE |
VARCHAR2(255) |
Name of the interface module |
REMOTE_TRANSACTION_ID |
VARCHAR2(255) |
Transaction Id of Downloader-Transporter job |
SOURCE_DATA_SET_ID |
NUMBER |
NUMBER ID of the source data set |
SRC_SYS_DATA_SET_READY_TIME |
TIMESTAMP |
Source Data Set Ready Time |
DATA_SET_TYPE |
VARCHAR2(255) |
Type of data set (FULL or PARTIAL) |
DATA_SET_READY_TIME |
TIMESTAMP |
Time when data set was available in the outbound tables |
DATA_FILE_MERGE_LEVEL |
VARCHAR2(255) |
Merge level for the files (NO_MERGE, MERGE_TO_PARTITION_LEVEL, MERGE_TO_INTERFACE_LEVEL) |
SOURCE_SYSTEM_NAME |
VARCHAR2(255) |
Name of the source system (for example RMS) |
Receiver Side Split for Multiple Destinations
If there are multiple destinations that receive data from a source, one of the options is to use the Receiver Service at one destination to receive data from the sender and then multiple destinations use the data from one Receiver Service to upload to inbound tables. The requirements for the Receiver Side Split are such that:
The Receiver Service database schema is shared by all the destinations
The File system is shared by all destinations
The performance of BDI can be improved by using the receiver side split if there are multiple destinations.
Batch service is a RESTful service that provides various endpoints to manage batch jobs in the bulk data integration system. Batch Service is part of Job Admin.
Table 3-3 Batch Service
REST Resource | HTTP Method | Description |
---|---|---|
/batch/jobs |
GET |
Gets all available batch jobs |
/batch/jobs/{jobName} |
GET |
Gets all instances for a job |
/batch/jobs/{jobName}/executions |
GET |
Gets all executions for a job |
/batch/jobs/executions |
GET |
Gets all executions |
/batch/jobs/currently-running-jobs |
GET |
Gets currently running jobs |
/batch/jobs/{jobName}/{jobInstanceId}/executions |
GET |
Gets job executions for a job instance |
/batch/jobs/{jobName}/{jobExecutionId} |
GET |
Gets job instance and execution for a job execution id |
/batch/jobs/{jobName} |
POST |
Starts a job asynchronously |
/batch/jobs/executions/{jobExecutionId} |
POST |
Restarts a stopped or failed job |
/batch/jobs/executions |
DELETE |
Stops all running job executions |
/batch/jobs/executions/{jobExecutionId} |
DELETE |
Stops a job execution |
/batch/jobs/executions/{jobExecutionId} |
GET |
Gets execution steps with details |
/batch/jobs/executions/{jobExecutionId}/steps |
GET |
Gets execution steps |
/batch/jobs/executions/{jobExecutionId}/steps/{stepExecutionId} |
GET |
Gets step details |
/batch/jobs/job-def-xml-files |
GET |
Gets all job xml files |
Key End Points
Start Job
This end point starts a job asynchronously based on a job name and returns the execution id of the job in the response.
Path: /batch/jobs/{jobName}
HTTP Method: POST
Inputs
Job Name as path parameter
Job Parameters as a query parameter. Job Parameters is a comma separated list of name value pairs. This parameter is optional.
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/batch/jobs/DiffGrp_Fnd_ImporterJob?jobParameters=dataSetId=1
Successful Response
XML <executionIdVo targetNamespace=””> <executionId>1</executionId> <jobName>DiffGrp_Fnd_ImporterJob</jobName> </executionIdVo> JSON { ”executionId”: 1, ”jobName”: ”DiffGrp_Fnd_ImporterJob” }
Error Response
XML <exceptionVo targetNamespace=””> <statusCode>404</statusCode> <status>NOT_FOUND</status> <message>HTTP 404 Not Found</message> <stackTrace></stackTrace> <!-- optional --> </exceptionVo> JSON { ”statusCode”: ”404”, ”status”: ”NOT_FOUND”, ”message”: ”HTTP 404 Not Found”, ”stackTrace”: ”” }
Restart Job
This end point restarts a job asynchronously using the job execution id and returns the new job execution id.
Path: /batch/jobs/executions/{executionId}
HTTP Method: POST
Inputs
executionId as path parameter
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/batch/jobs/executions/2
Successful Response
XML <executionIdVo targetNamespace=””> <executionId>2</executionId> <jobName>DiffGrp_Fnd_ImporterJob</jobName> </executionIdVo> JSON { ”executionId”: 2, ”jobName”: ”DiffGrp_Fnd_ImporterJob” }
Error Response
XML XML <exceptionVo targetNamespace=””> <statusCode>500</statusCode> <status>INTERNAL_SERVER_ERROR</status> <message>Internal Server Error</message> <stackTrace></stackTrace> <!-- optional --> </exceptionVo> JSON { ”statusCode”: ”500”, ”Status”: ”INTERNAL_SERVER_ERROR”, ”Message”: ”Internal Server Error”, ”stackTrace”: ”” }
Check Status of a Job
This endpoint returns the status of a job using the job name and execution id.
Path: /batch/jobs/jobName/{jobExecutionId}
HTTP Method: GET
Inputs
jobName as path parameter
jobExecutionId as path parameter
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/batch/jobs/DiffGrp_Fnd_ImporterJob/1
Successful Response
XML <jobInstanceExecutionsVo targetNamespace=””> <jobName>DiffGrp_Fnd_ImporterJob</jobName> <jobInstanceId>1</jobInstanceId> <resource>http://localhost:7001/bdi-batch-job-admin/resources/batch/jobs/DiffGrp_Fnd_ImporterJob/1</resource> <jobInstanceExecutionVo> <executionId>1<>executionId> <executionStatus>COMPLETED</executionStatus> <executionStartTime>2016-07-11 15:45:27.356</executionStartTime> <executionDuration>10</executionDuration> </jobInstanceExecutionVo> </jobInstanceExecutionsVo> JSON
{ ”jobName”: ”DiffGrp_Fnd_ImporterJob”, ”jobInstanceId”: 1, ”resource”: ”http://localhost:7001/bdi-batch-job-admin/resources/batch/jobs/DiffGrp_Fnd_ImporterJob/1”, [”jobInstanceExecutionVo”: { ”executionId”: 1, ”executionStatus”: ”COMPLETED”, ”executionStartTime”:”2016-07-11 15:45:27.356”, ”executionDuration”: ”10” }] } }
Error Response
XML <exceptionVo targetNamespace=””> <statusCode>500</statusCode> <status>INTERNAL_SERVER_ERROR</status> <message>Internal Server Error</message> <stackTrace></stackTrace> <!-- optional --> </exceptionVo> JSON { ”statusCode”: ”500”, ”Status”: ”INTERNAL_SERVER_ERROR”, ”Message”: ”Internal Server Error”, ”stackTrace”: ”” }
Data Service is a RESTful service that provides end points to get data set information based on job level information.
Table 3-4 Data Service
REST Resource | HTTP Method | Description |
---|---|---|
/data/dataset/{jobName}/executions/{jobExecutionId} |
GET |
Gets a data set based on job name and job execution id |
/data/dataset/{jobName}/instances/{jobInstanceId} |
GET |
Gets a data set based on job name and job instance id |
/data/dataset/{jobName}nextPending |
GET |
Gets next pending data set based on job name |
Get Data Set for job name and execution id
Job name - Extractor or downloader-transmitter or uploader job name
Execution id - Job execution id
This endpoint is used by a process flow to get the data set id after the extractor job is run successfully.
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/data/dataset/Diff_Fnd_ExtractorJob/executions/1
Sample Response
Returns response in either XML or JSON format.
<jobDataSetVo> <interfaceModule>Diff_Fnd</interfaceModule> <interfaceModuleDataControlId>2</interfaceModuleDataControlId> <jobName>Diff_Fnd_ExtractorJob</jobName> <jobDataSetInstance> <jobInstanceId>1</jobInstanceId> <jobDataSetExecutions> <jobExecutionId>1</jobExecutionId> </jobDataSetExecutions> </jobDataSetInstance> </jobDataSetVo>
Get Data Set for job name and instance id
Job name - Extractor or downloader-transmitter or uploader job
Instance id - Job instance id
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/data/dataset/Diff_Fnd_ExtractorJob/instances/1
Sample Response
<jobDataSetVo> <interfaceModule>Diff_Fnd</interfaceModule> <interfaceModuleDataControlId>2</interfaceModuleDataControlId> <jobName>Diff_Fnd_ExtractorJob</jobName> <jobDataSetInstance> <jobInstanceId>1</jobInstanceId> <jobDataSetExecutions> <jobExecutionId>1</jobExecutionId> </jobDataSetExecutions> </jobDataSetInstance> </jobDataSetVo>
Get next pending data set for job name
This endpoint is applicable only to the downloader-transporter or uploader jobs.
Sample Request
http://localhost:7001/bdi-batch-job-admin/resources/data/dataset/Diff_Fnd_DownloaderAndTransporterToRxmJob/nextPending
Sample Response
<jobDataSetVo> <interfaceModule>Diff_Fnd</interfaceModule> <interfaceModuleDataControlId>9</interfaceModuleDataControlId> </jobDataSetVo>
During the deployment of Job Admin, seed data gets loaded to various tables. Seed data files are located in the bdi-<app>-home/setup-data/dml folder. If seed data is changed, Job Admin need to be reinstalled and redeployed. For loading seed data again during the redeployment, LOADSEEDDATA flag in the BDI_SYSTEM_OPTIONS table need to be set to TRUE.
Jobs
The following job properties can be changed to improve the performance of the jobs.
Item-count - Number of items read by a job before it writes. Default size is 1000.
fetchSize - Number of items cached by JBDC driver. Default size is 1000.
Receiver Service
The Receiver Service allows maximum number of blocks for transaction based on the following system option in BDI_SYSTEM_OPTIONS table.
receiverMaxNumBlocks - Default value is set to 10000
Seed data need to be changed to update the maximum number of blocks for the Receiver Service. To update the seed data, set the LOADSEEDDATA flag to TRUE, reinstall and redeploy Job Admin. The Value of the LOADSEEDDATA flag can be changed from the Job Admin Manage Configurations Tab.
During the deployment of Job Admin, seed data is loaded to various tables. Seed data files are located in the jos-<app>-home/setup-data/dml folder. If seed data is changed, Job Admin must be reinstalled and redeployed. In order to load seed data again during the redeployment, the LOADSEEDDATA flag in the BDI_SYSTEM_ OPTIONS table must be set to TRUE.
During the deployment, Job XMLs get loaded to BDI_JOB_DEFINITION table. Job XML files are located in the "jos-job-home/setup-data/META-INF/batch-jobs" folder. If job xmls are changed, Job Admin must be reinstalled and redeployed. In order to load job xmls during redeployment, the LOADJOBDEF flag in the BDI_SYSTEM_OPTIONS table must be set to TRUE.
Note: Restart of job does not load job definition from the BDI_JOB_DEFINITION table. Java Batch loads job xml from JOBSTATUS table during the restart of a job.If there is an issue with Job XML, job needs to be started after fixing the job XML. |