spring-batch-samples | Spring Batch samples | Batch Processing library
kandi X-RAY | spring-batch-samples Summary
kandi X-RAY | spring-batch-samples Summary
Spring Batch scaling strategies - sample application === This is sample application developed for ["Horizontal and Vertical Scaling Strategies for Batch Applications"] article. Application is responsible for processing Elixir0 messages. Elixir0 is a country-domestic Polish bank message format that represents standard credit transfer transactions. All payments contained by Elixir0 are screened against OFAC’s Specially Designated Nationals List. Screening algorithm performs fuzzy matching of beneficiary and ordering party name, address and alternate name against every SDN entity. If algorithm detects that sanctions might be imposed on ordering or receiving party, placement of the particular transaction is suspended and waits for manual approval. Please bear in mind that the implementation of payment sanction screening mechanism used here is not the most optimal and performant algorithm for this task. Also, it should not be considered as a complete solution.
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Top functions reviewed by kandi - BETA
- Creates a FieldSet object from a FieldSet
- Sets the amount to use
- Set the recipient address
- Set the beneficiary account number
- Compares two JARO metrics
- Removes all non alphanumeric characters from a string
- Computes the Jaro similarity between two words
- Computes the total length of two BagA objects
- Checks if the session matches the filter
- Gets the value of thednEntity property
- Gets the transaction
- Partitions a data structure by a grid size
- Get partition name
- Generate the transactions
- Returns a string representation of this message
- Load external data resources
- Loads all lines from a file
- Sets the item stream
- Update ItemStream
- Reads an object from the delegate
- Generate ERixir 0
- Returns the flow execution status
- Update the status of the transaction
- Start a job
- Deletes transaction
spring-batch-samples Key Features
spring-batch-samples Examples and Code Snippets
Community Discussions
Trending Discussions on spring-batch-samples
QUESTION
I am trying to use the multiline IteamReader following the spring-batch-sample at https://github.com/spring-projects/spring-batch/tree/main/spring-batch-samples#multiline
I am running into compilation error as below -
I am sure there is something related to generics as it looking for class implementing ItemReader but the AggregateItemReader implements ItemReader.
...ANSWER
Answered 2021-Aug-22 at 10:15You need to be consistent in what the type of the items is that you want to handle on batch level. According to your step definition it is Trade. By calling chunk(1) on the step builder, you declare that your batch should read items of type Trade with a chunk size of 1 (i.e. one at a time) and pass these on to a writer for items of type Trade. In this case, you need to supply a reader of type ItemReader, a writer of type ItemWriter and optionally a processor of type ItemProcessor.
The problem is that your reader is of type ItemReader>, i.e. it does not yield a Trade for each invocation of its read method but a list of trades.
If you want to use the AggregateItemReader you need to wrap it into a custom reader that works as an adapter and actually returns Trade items and not List.
For example, the custom read method could look like this:
QUESTION
I have a spring batch jobs in which I want to push metrics to Prometheus as suggested here
I have a requirement to push only default metrics given by Spring batch via micrometer.There is a easy way in which I dont have to anything and just add following dependency:
...ANSWER
Answered 2021-Mar-18 at 09:37
- Is there any difference in these two approaches?
No, there is no difference. Please note that not all Spring Batch users are Spring Boot users. That's why the sample in Spring Batch's repository shows how to configure a task that pushes metrics to the gateway. Now if you use Spring Boot, you don't have to write that class since an equivalent is configured by Spring Boot automatically.
- In second approach how to write it when all we need is default metrics?Pushgatewayurl is fine ,I understood, but if I have dozen of jobs, what to set in jobname and grouping key.?
Spring Batch metrics are tagged by job name, step name, etc, see the Tags column in the Built-in Metrics table. So even if you have multiple jobs, the metrics will be distinct. You can do the filtering on Prometheus side with the corresponding tag.
QUESTION
I have created a sample spring batch application which is trying to read record from a DB and in writer, it displays those records. However, I could see that only even numbered (alternate) records are printed.
It's not the problem of database as the behavior is consistent with both H2 database or Oracle database.
There are total 100 records in my DB.
With JDBCCursorItemReader, only 50 records are read and that too alternate one as can be seen from log snapshot
With JdbcPagingItemReader, only 5 records are read and that too alternate one as can be seen from log snapshot
My code configurations are given below. Why reader is skipping odd numbered records?
...ANSWER
Answered 2020-May-03 at 18:07I tried to reproduce your problem, but I couldn't. Maybe it would be great if you could share more code.
Meanwhile I created a simple job to read 100 records from "safety" table a print them to the console. And it is working fine.
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No vulnerabilities reported
Install spring-batch-samples
You can use spring-batch-samples like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spring-batch-samples component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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