java-batch

JEE Batch Job Specification with many optional Steps

由 限于喜欢 提交于 2020-01-05 08:27:28
问题 Is there a way to achieve the following logic with JSR 352 Batch API? I have a series of Steps that each need to be executed based on a different condition known when starting the job. ConditionsEntity is provided by an external system. public List<Steps> createStepSequence(ConditionsEntity conditions) { if (conditions.isStep1Enabled()) { steps.add(step1) } if (conditions.isStep2Enabled()) { steps.add(step2) } if (conditions.isStep3Enabled()) { steps.add(step3) } //many more ifs return steps;

CDI not working with Java EE Batch under jberet implementation

由 二次信任 提交于 2020-01-03 03:01:19
问题 I have a Java EE batch application implemented with jberet deployed on WildFly application server. This application also expose a REST api to trigger a job on demand. I have following class creating beans to be injected: public class Factory { @Produces public JsonValidator getJsonValidator() { return JsonSchemaFactory.byDefault().getValidator(); } Injecting the above bean in the REST api works fine: @Path("my-resource") public class MyResource{ @Inject private JsonValidator jsonValidator;

How to configure/run Java Batch partitions in multi JVM in WebSphere LP

由 旧城冷巷雨未停 提交于 2019-12-25 09:11:33
问题 In WebSphere LP Java Batch, I have divided my job in 4 partitions through job.xml configuration, So when the job executes on server 4 threads runs on single jvm to complete the job. Now I want to run the partitions on 2 jvm. Lets say 2 partitions will run on server-1 and 2 partitions will run on server-2. Does someone tried something on this to run partitions in multiple jvm through configuration or any thoughts would be welcome. 回答1: You need some extra configuration in the server running

JSR352 decide next step based on return parameter from Decider

由 蹲街弑〆低调 提交于 2019-12-24 10:44:11
问题 I would like to implement a Decider that returns the ID of the next step that needs to be executed. (This question is related to my other question here if you would like to know why I'm trying to do this: JEE Batch Job Specification with many optional Steps) <decision id="decider1" ref="skipNextStepDecider"> <properties> <property name="condition" value="isExecuteSteps"/> </properties> <next on="*" to="STEP_ID_RETURNED_BY_DECIDER"/> <end on="SKIP"/> </decision> Is there any way to do this? I

JSR 352: Wildfly9 / JBeret - How to call a batch job that it is not contained at the same deployment file level

由 纵然是瞬间 提交于 2019-12-13 12:36:44
问题 I have a WAR application that includes a JAR library. The JAR library contains the Batch Job and the Batch Artifacts ( META-INF/batch-jobs/... ). The WAR app includes this jar as a library and defines a JAX-RS Service that allows to clients to invoke the batch job calling the JobOperator Interface... When i run this deployment, the JSR 352 implementation (JBeret) keeps complaining that the Job cannot be found anyware when the JobOperator Interface is called... However, if the Batch Job and

How to implement File Update logic in Chunk Processing (Java Batch - JSR352)

由 做~自己de王妃 提交于 2019-12-13 03:17:58
问题 I am trying to develop a Java batch program using the IBM's JSR352 Implementation. Since the batch job involves iteratively processing huge number of records, I chose to implement it as Chunk Processing job. This job involves of 3 steps which keeps repeated for each records in File 1 Reader Class: Read content from File 1 to form a key text Processor Class: Look-up the Key text in File 2 Writer Class: Update the text in File 2 where key text was found with a custom text From the processor to

JSR 352 :How to collect data from the Writer of each Partition of a Partitioned Step?

由 只愿长相守 提交于 2019-12-10 18:46:57
问题 So, I have 2 partitions in a step which writes into a database. I want to record the number of rows written in each partition, get the sum, and print it to the log; I was thinking of using a static variable in the Writer and use Step Context/Job Context to get it in afterStep() of the Step Listener. However when I tried it I got null . I am able to get these values in close() of the Reader. Is this the right way to go about it? Or should I use Partition Collector/Reducer/ Analyzer? I am using

How do I configure a transaction timeout in WebSphere Liberty Batch?

由 别说谁变了你拦得住时间么 提交于 2019-12-07 10:31:30
问题 What is the role of javax.transaction.global.timeout ? Do I need to implement the checkpointTimeout() method in CheckpointAlgorithm ? Is there anything at the server config level? How does this interact with whatever is set at the application level? 回答1: ( Edit 2016-12-02: Reworked with an explanation of the defaulting behavior when a timeout value of '0' is set for the application transaction). Overview Let me describe the application-level options and how that interacts with the server

JSR 352: Wildfly9 / JBeret - How to call a batch job that it is not contained at the same deployment file level

由 点点圈 提交于 2019-12-06 11:10:24
I have a WAR application that includes a JAR library. The JAR library contains the Batch Job and the Batch Artifacts ( META-INF/batch-jobs/... ). The WAR app includes this jar as a library and defines a JAX-RS Service that allows to clients to invoke the batch job calling the JobOperator Interface... When i run this deployment, the JSR 352 implementation (JBeret) keeps complaining that the Job cannot be found anyware when the JobOperator Interface is called... However, if the Batch Job and the Batch Artifacts are included as classes of the WAR deployment, everything runs smoothly... So, what

How do I configure a transaction timeout in WebSphere Liberty Batch?

由 烈酒焚心 提交于 2019-12-05 12:03:31
What is the role of javax.transaction.global.timeout ? Do I need to implement the checkpointTimeout() method in CheckpointAlgorithm ? Is there anything at the server config level? How does this interact with whatever is set at the application level? ( Edit 2016-12-02: Reworked with an explanation of the defaulting behavior when a timeout value of '0' is set for the application transaction). Overview Let me describe the application-level options and how that interacts with the server-level timeout. In a chunk step in WebSphere Liberty Java Batch, you can either set an application-level timeout,
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