Append text to files using FileWriter

[aemUser2345]

I am trying to append new line of text for different json files. But for some reason, each json file only has one line after the below code is executed but it shouldn't. 

Node confNode = session.getNode("/etc");
Node reportFileNode;
Node contentNode;
for (int jIndex = 0; jIndex < array.length(); jIndex++){
    String title= array.getJSONObject(jIndex).getString("title");
    File file = File.createTempFile( title,".json");
    FileWriter fw = new FileWriter(file, true);
    fw.append(array.getJSONObject(jIndex).toString() + "\n");
    fw.close();
    if (confNode.hasNode(  title+".json")) {
        reportFileNode = confNode.getNode(title+ ".json");
        contentNode = reportFileNode.getNode("jcr:content");
    } else {
        reportFileNode = confNode.addNode(title+".json", "nt:file");
        contentNode = reportFileNode.addNode("jcr:content", "nt:unstructured");
    }
    FileInputStream fileInputStream = new FileInputStream(file);
    Binary contentValue = session.getValueFactory().createBinary(fileInputStream);
    contentNode.setProperty("jcr:data", contentValue);
}

 I already used "append" as well as adding "\n" to the file. Am I missing something? Thanks!

[Kiran_Vedantam · Accepted solution]

HI @aemUser2345 

As per your code, you are creating and closing the file in the same for loop. Hence it's saving the last instance of the text that you are wanting to append. Can you create the file before the for loop and close it once all the data storage is completed and try?

Hope it helps!

Thanks,
Kiran Vedantam.