Formatting Source Code programmatically with JDT

Question

I am generating some classes with JDT. Afterwards I would like to format the whole ICompilationUnit, just as if I pressed Ctrl+Shift+F (Source > Format) in an open Editor wi

Answer 1

When generating some classes by using JDT, you can put "\t"s in your source code. Or like what you did, using code formatter. I have tested the following code:

public static void main(String[] args)
{
    String code = "public class TestFormatter{public static void main(String[] args){System.out.println(\"Hello World\");}}";
    CodeFormatter codeFormatter = ToolFactory.createCodeFormatter(null);

    TextEdit textEdit = codeFormatter.format(CodeFormatter.K_UNKNOWN, code, 0,code.length(),0,null);
    IDocument doc = new Document(code);
    try {
        textEdit.apply(doc);
        System.out.println(doc.get());
    } catch (MalformedTreeException e) {
        e.printStackTrace();
    } catch (BadLocationException e) {
        e.printStackTrace();
    }   
}

The apply() method does the trick here.