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How do I write a file in eclipse?

If I have a file descriptor, how do I create a document and write to it? Right now I need to completely delete the file and create new content as shown below:

IFile file = getFile(); 
file.delete();
file.create(input, false, null);

EDIT : This is an eclipse plugin, not a regular Java program.

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3 answers


Found the answer here: http://old.nabble.com/how-to-get-the-IDocument-of-an-ITextFileBuffer-created-from-an-IFile--td19222160.html

Had to change a little to suit my need:



FileEditorInput editorInput = new FileEditorInput(file);
IWorkbench wb = PlatformUI.getWorkbench();
IWorkbenchPage page = wb.getActiveWorkbenchWindow().getActivePage();
IEditorDescriptor desc = wb.getEditorRegistry().getDefaultEditor(file.getName());
IEditorPart editor = (IEditorPart)page.openEditor(editorInput, desc.getId());
ITextEditor textEditor = (ITextEditor) editor.getAdapter(ITextEditor.class);
IDocumentProvider documentProvider = textEditor.getDocumentProvider(); 
IDocument document = documentProvider.getDocument(editorInput);
document.replace(position, 0, content);
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This is because you are trying to read a file that does not exist. So by getting the file and closing it, you are actually creating the file.



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The IFile interface seems to have some methods that will allow you to write some content:

/**
 * Appends the entire contents of the given stream to this file.
 * ...
 */
public void appendContents(InputStream source, boolean force, boolean keepHistory, IProgressMonitor monitor) throws CoreException;
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