Dumping the console output to a file from within a job

This recipe shows how you can dump all logging data to a file, while still running the job in the Studio. It is particularly useful when debugging large data sets.

Getting ready

Open the jo_cook_ch10_0090_consoleToFile job.

How to do it...

The steps for dumping console output to a file from within a job are as follows:

1. Run the job and view the console output.

2. Add the following code to tJava_1:

   // redirect the console output to a file from within studio
   System.setOut(new java.io.PrintStream(new java.io.BufferedOutputStream(new java.io.FileOutputStream(context.cookbookData+"outputData/chapter10/chapter10_jo_0090_consoleOut.txt"))));

3. Run the job. You will see only the job's start and end messages.

4. Open the file in the cookbook data directory under output/chapter10 named chapter10_jo_0090_consoleOut.txt. You will see that the logging information has been copied to the file, as shown in the following screenshot:

   

How it works...

When the java statement...