SpringBatchWebinar

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SpringBatchWebinar

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Webinar code and presentation for the webinar on Spring Batch June 10th, 2014

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## Spring Batch Webinar
---
This repository goes along with the Spring Batch Webinar given June 10th, 2014.  The presentation deck is provided as well as the code from all demos.

### JSR-352 Hello World!

From the root of the project:

1. `$ ./gradlew clean build` This may be skipped if done previously
2. `$ java -jar JSR-352/build/libs/JSR-352.jar helloWorldJob name=Michael`

### JSR-352 File to Database

From the root of the project:

1. `$ ./gradlew clean build` This may be skipped if done previously
2. `java -jar JSR-352/build/libs/JSR-352.jar fileToDatabase fileName=<PATH_TO_WORKSPACE>/SpringBatchWebinar/JSR-352/src/main/resources/data/customer.csv` where <PATH_TO_WORKSPACE> is the absolute path to the location you cloned this repository from.

### Spring Based JSR-352 Job

From the root of the project:

1. `$ ./gradlew clean build` This may be skipped if done previously
2. `$ java -jar SpringBasedJSR-352/build/libs/SpringBasedJSR-352.jar fileToDatabase fileName=<PATH_TO_WORKSPACE/SpringBatchWebinar/JSR-352/src/main/resources/data/customer.csv` where <PATH_TO_WORKSPACE> is the absolute path to the location you cloned this repository from.

### Spring Batch Integraiton

This example requires a small bit of additional configuration.  In order to poll and post to Twitter, you'll need to supply your Twitter credentials.  To do that:

1. In the directory `<PATH_TO_WORKSPACE/SpringBatchWebinar/SpringBatchIntegration/src/main/resources` create a file named `application.properties`.
2. Add the following to it replacing the values for the first four accordingly:

```
twitter.oauth.consumerKey=foo_consumer_key
twitter.oauth.consumerSecret=foo_consumer_secret
twitter.oauth.accessToken=foo_access_token
twitter.oauth.accessTokenSecret=foo_access_token_secret
spring.batch.job.enabled=false
```

3. `$ ./gradlew clean build` This may be skipped if done previously
4. `$ java -jar SpringBatchIntegration/build/libs/SpringBatchIntegraiton.jar`
5. Login to Twitter.
6. Sent the following tweet where <PATH_TO_INPUT> points to the input file: `fileToDatabase fileName=<PATH_TO_INPUT>`
7. Verify the results on Twitter and in the console.  The job polls once a minute so there will be a bit of a delay.

### Spring XD

The demo performed during the webinar was based on Spring XD 1.0.0.M7.  Installation instructions for that version of Spring XD can be found here: [http://docs.spring.io/spring-xd/docs/1.0.0.M7/reference/html/](http://docs.spring.io/spring-xd/docs/1.0.0.M7/reference/html/).

To execute the file to HDFS batch job provided by Spring XD:

1. Make sure Hadoop is running
2. Execute Spring XD single node specifying your apropriate Hadoop distribution: `$ ./xd-singlenode --hadoopDistro hadoop12`
3. Navigate to http://localhost:9393/admin-ui
4. Navigate to the modules tab
5. Select filepollhdfs
6. Enter the following fields:
    1. Name: FileToHdfs
    2. Names: customer,qty
7. Click Submit
8. Navigate to the Deployments Tab
9. Click Launch next to FileToHdfs
10. Click + Param and add the parameter: absoluteFilePath = /tmp/customer.csv
11. Click launch job
12. Check out the results in Hadoop

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