Is it possible to append to a file in a mapping node?

Question

I need to append to a file in a mapping node. Can this be done?

Answer 1

This is done via the java.io.BufferedWriter

var bufferedWriter = null;

 

try {

   bufferedWriter = new java.io.BufferedWriter(new java.io.FileWriter('C:\\Temp\\testFile.txt', true));

   bufferedWriter.write('This is my new line of data');

   bufferedWriter.newLine();

   bufferedWriter.flush();

} finally {

   if (bufferedWriter !== null) {

      try {

         bufferedWriter.close();

      } catch (err) {

         // we will just ignore this error

      }

   }

}

 

java doc: https://docs.oracle.com/javase/7/docs/api/java/io/BufferedWriter.html

Comments

This worked perfectly, thank you !