Writing file from CompilationUnit (ASTNode)

When you have an object of iCompilationUnit, you can save it to the file.

1. You need to create Document object from ICompilationUnit
2. You need a ASTRewrite object from CompilationUnit
3. Filling in the Document object using apply() method
4. Storing the source code string from document.get() method

Document document = new Document(iCompilationUnit.getSource());
ASTRewrite rewriter = ASTRewrite.create(compilationUnit); // ? check if the parameter object type is correct

rewrite.rewriteAST().apply(document);
String source = document.get();

File file = new File(DEST_FILE_PATH);
FileUtils.writeStringToFile(file, source) 

FileUtils

You need to save apache file utilities to use the FileUtils.

References

• Saving modified AST in a new file with eclipse plugin
• Using FileUtils in eclipse