Get contents of editor

Question

I am trying to develop a simple Eclipse plugin to understand how it works.

I have two questions about this:

How can I get the content of the active editor?

Do you have a good documentation about life cycle plugin and co? I can't find real good documentation on Google.

Answer 1

Tonny Madsen's answer is fine, but perhaps a little more transparent (getAdapter() is very opaque) is something like:

public String getCurrentEditorContent() {
    final IEditorPart editor = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
        .getActiveEditor();
    if (!(editor instanceof ITextEditor)) return null;
    ITextEditor ite = (ITextEditor)editor;
    IDocument doc = ite.getDocumentProvider().getDocument(ite.getEditorInput());
    return doc.get();
}